Asteraceae Plants Research Articles

De Novo Production of the Bioactive Phenylpropanoid Artepillin C Using Membrane-Bound Prenyltransferase in Komagataella phaffii.

Artepillin C is a diprenylated phenylpropanoid with various pharmacological benefits for human health. Its natural occurrence is limited to a few Asteraceae plants, such as Baccharis species, necessitating a stable supply through synthetic biology. In Saccharomyces cerevisiae, the utilization of aromatic substrates within the cell was limited, resulting in very low production of artepillin C. In this study, we used AcPT1, a p-coumaric acid (p-CA)-specific diprenyltransferase, in Komagataella phaffii to produce artepillin C. Detailed studies revealed that the critical bottleneck in K. phaffii was the supply of prenyl diphosphates, not phenylpropanoid flux. By enhancing the prenyl substrate pathway through overexpression of isopentenyl diphosphate isomerase and a truncated HMG-CoA reductase, we achieved a strong increase in artepillin C production. A major part of artepillin C was accumulated in yeast cells. One of the advantages of K. phaffii is its superior growth and ability to achieve high cell density cultivation compared to that of S. cerevisiae. Therefore, fed-batch cultivation with glycerol was performed. As a result, the dry cell weight (DCW) reached 61.0 g/L, and the intracellular amount of de novo produced artepillin C reached 187.3 μg/DCW. Analysis of intermediates revealed that the supply of p-CA constituted a bottleneck in artepillin C production in the engineered strain. By enhancing the p-CA supply, the intracellular accumulation of artepillin C reached 1200 μg/DCW even in batch cultivation. Moreover, the total intra- and extracellular amounts of artepillin C reached 12.5 mg/L, marking the highest de novo synthesis amount of artepillin C reported thus far, even under batch cultivation conditions.

Research progress on extraction, separation, structure, and biological activities of polysaccharides from the genus Atractylodes: A review.

Plants of the genus Atractylodes are perennial herbaceous plants in the family Asteraceae, whose rhizome is often used in the production of medicines and health products. There are 6 main species in this genus, namely A. macrocephala, A. lancea, A. chinensis, A. carlinoides, A. koreana and A. japonica. Among them, A. lancea and A. macrocephala are the most extensively investigated. Polysaccharides as the main active ingredients extracted and isolated from plants in this genus, show good pharmacological activities in vivo and in vitro, such as immunomodulatory, antioxidant, antidiabetic and intestinal protective activities. The pharmacological activities of polysaccharides are closely related to their extraction methods and physicochemical properties. This article discusses the extraction and separation methods, molecular weight, monosaccharide composition, chemical structure characteristics and pharmacological activities of polysaccharides from the genus Atractylodes. Furthermore, a comparative analysis of the relationship of monosaccharide composition, relative molecular weight and structural modifications with the pharmacological activities of polysaccharides of the genus Atractylodes was carried out, which provided a reference for the development and utility of polysaccharides.

Plastid phylogenomics of Robinsonia (Senecioneae; Asteraceae), endemic to the Juan Fernández Islands: insights into structural organization and molecular evolution

BackgroundThe genus Robinsonia DC. (tribe Senecioneae, Asteraceae) endemic to the Juan Fernández Islands in Chile is one of the most conspicuous insular plant groups in the world. Unlike typical herbaceous Asteraceae plants, these plants demonstrate spectacular and unusual rosette tree growth forms as shown by the alpine giant senecios (genus Dendrosenecio, tribe Senecioneae) endemic to the East African mountains. However, monophyly of the genus and phylogenetic relationships among species of Robinsonia as well as their plastome evolution remain elusive. This study aims to explore their phylogeny, species diversification, and molecular evolution based on the complete plastome sequences in the context of adaptive radiation on oceanic islands.ResultsThe insular Robinsonia plastomes are highly conserved in their structures and organization of contents. Five divergence hotspots as potential chloroplast markers and five positively selected coding genes (accD, ndhF, rpoA, ycf1, and ycf2) are identified. Robinsonia plastomes has an overall nucleotide diversity higher than that of the sky island Dendrosenecio, but much lower than herbaceous Senecio. Phylogenetic analysis demonstrates the monophyly of Robinsonia and identifies two major infrageneric lineages. Both Robinsonia and Dendrosenecio are deeply nested within large genus Senecio.ConclusionsWhile plastid genomes of Robinsonia are highly conserved, their sequences strongly demonstrated the monophyly of the genus and inferred robust interspecific relationships, including herbaceous Senecio and woody Dendrosenecio. Different sets of positively selected chloroplast genes, five for Robinsonia and two for Dendrosenecio, may play an important role in the adaptation strategies of these fascinating woody species in insular and continental sky island habitats. Overall phylogenetic positions and sister lineages of Robinsonia and Dendrosenecio require additional study based on broader sampling of Senecio.

Anti-Inflammatory Humulene-Type Sesquiterpenoids from Asteriscus Graveolens

Objectives: Inflammation is the initial physiological reaction of the immune system to infection or irritation, leading significant risk factors for several forms of cancer. The genus Asteriscus has been observed to possess a notable abundance of sesquiterpenes with anti-inflammatory properties. This study was designed to assess the anti-inflammatory activity of the sesquiterpenoids isolated from Asteriscus graveolens. Methods: The organic extract of the Asteraceae plant A. graveolens was subjected to different chromatographic and spectroscopic techniques for isolation, purification, and identification of sesquiterpenoid contents. The isolated compounds were screened for anti-inflammatory activities in two animal models: rat paw edema and rat ear edema. Histopathological examinations as well as biochemical markers of inflammation were assessed. This was followed by in silico screening for anti-inflammatory activity. Results: Four known sesquiterpenoids were isolated from A. graveolens, including two humulene derivatives, namely, 9-oxohumula-4-en-6,15-olide (1), and 9-oxohumula-1(10)(Z),4,7(E)-trien-6,15-olide (2) and two bisabolene derivatives, identified as bisabola-2,10-dien-1-one (3) and 6- hydroxybisabola-2,10-dien-1-one (4) described. In the rat paw edema model, compound 2 showed highest activity in preventing formation carrageenan-induced paw edema. This was confirmed by histopathological examinations that indicated partial preservation of the epidermal and dermal layers. Further, the compound significantly inhibited cyclooxygenase-2 (COX-2) and tumor necrosis factor-α (TNF-α) release. In the croton oil indued rat ear edema, compounds 2 and 4 significantly inhibited ear edema and protected against histopathological alterations. This was associated with prevention of myeloperoxidase (MPO) concentration in ear tissues. Molecular docking and molecular dynamic simulation indicated the affinity and docking stability of compounds 1-4 to the selected inflammatory protein. Conclusion: Phytochemical investigation of A. graveolens resulted in the isolation and characterization of four sesquiterpenes. In particular, compound 2 showed potent anti-inflammatory activity in carrageenan rat paw edema and croton oil ear edema.

Enhanced bioethanol production from Compositae plant stalks: Integrating dry acid pretreatment and fungal mediated biodetoxification

Compositae is an important economic plant with relatively high contents of water-soluble sugars in stalk section. The pretreatment of Compositae plant stalks quickly converts the water-soluble sugars into high titers of furan aldehydes, which inhibits the viability of consequent fermentation strains. This study used the typical Compositae plant stalks of sunflower, Jerusalem artichoke, and stevia as feedstocks for dry acid pretreatment under high solids loading, then a unique solid-state biodetoxification method was applied to degrade these high-titer inhibitors. The results showed that temperature and sulfuric acid concentration were two key parameters for enhancing pretreatment efficiency. Enzymatic hydrolysis yield of the above pretreated stalks reached up to 79.68%, 66.75% and 74.05%, respectively. For pretreated Jerusalem artichoke stalk, it contained 37.36% of cellulose, 2.72% of xylan, 3.04% of glucose, 11.64% of xylose, 20.54% of lignin, and some inhibitors (3.80% of acetate, 0.24% of HMF and 0.23% of furfural). After biodetoxification, 100% of furfural, 40% of HMF, and 36% of acetate were quickly removed by Amorphotheca resinae ZN1, which resulted in 55.57 g/L ethanol production (equivalent to 7.1% by volumetric percentage) with the yield of 55.54% from 73.59 g/L of glucose and 40.69 g/L of xylose by simultaneous saccharification and co-fermentation (SSCF). This study provides a combinational approach of dry acid pretreatment and biodetoxification for Compositae plant stalks biorefinery.

AMIR: a multi-omics data platform for Asteraceae plants genetics and breeding research.

As the largest family of dicotyledon, the Asteraceae family comprises a variety of economically important crops, ornamental plants and numerous medicinal herbs. Advancements in genomics and transcriptomic have revolutionized research in Asteraceae species, generating extensive omics data that necessitate an efficient platform for data integration and analysis. However, existing databases face challenges in mining genes with specific functions and supporting cross-species studies. To address these gaps, we introduce the Asteraceae Multi-omics Information Resource (AMIR; https://yanglab.hzau.edu.cn/AMIR/), a multi-omics hub for the Asteraceae plant community. AMIR integrates diverse omics data from 74 species, encompassing 132 genomes, 4 408 432 genes annotated across seven different perspectives, 3897 transcriptome sequencing samples spanning 131 organs, tissues and stimuli, 42 765 290 unique variants and 15 662 metabolites genes. Leveraging these data, AMIR establishes the first pan-genome, comparative genomics and transcriptome system for the Asteraceae family. Furthermore, AMIR offers user-friendly tools designed to facilitate extensive customized bioinformatics analyses. Two case studies demonstrate AMIR's capability to provide rapid, reproducible and reliable analysis results. In summary, by integrating multi-omics data of Asteraceae species and developing powerful analytical tools, AMIR significantly advances functional genomics research and contributes to breeding practices of Asteraceae.

Discovery of a new gall-inducing species, Aciurinaluminaria (Insecta, Diptera, Tephritidae) via multi-trait integrative taxonomy.

Integrative taxonomic practices that combine multiple lines of evidence for species delimitation greatly improve our understanding of intra- and inter-species variation and biodiversity. However, extended phenotypes remain underutilized despite their potential as a species-specific set of extracorporeal morphological and life history traits. Primarily relying on variations in wing patterns has caused taxonomic confusion in the genus Aciurina, which are gall-inducing flies on Asteraceae plants in western North America. However, species display distinct gall morphologies that can be crucial for species identification. Here we investigate a unique gall morphotype in New Mexico and Colorado that was previously described as a variant of that induced by Aciurinabigeloviae (Cockerell, 1890). Our analysis has discovered several consistent features that distinguish it from galls of A.bigeloviae. A comprehensive description of Aciurinaluminaria Baine, sp. nov. and its gall is provided through integrative taxonomic study of gall morphology, host plant ecology, wing morphometrics, and reduced-representation genome sequencing.

Qualitative and Quantitative Analysis of Stigmasterol from Iraqi Calendula officinalis

Calendula officinalis L. (Asteraceae) plant origin from Mediterranean countries, and in addition to the beauty of its flowers they also have important medicinal properties in the healing of many illnesses particularly skin issues. C. officinalis in the world was reported and assessed as a medicinal plant, like British pharmacopoeia (BP), European pharmacopoeia (EU), WHO and PDR. Calendula officinalis Linn. Contains 0.4% of flavonoids as minimum, calculated as Hyperoside of dried herbal substance according to British pharmacopeia (2). The Chemical Constituents are: Triterpene saponins, Triterpene (Stigmasterol), Flavonoids: isorhamnetin glycosides and quercetin glycosides, Coumarins: umbelliferon, scopoletin and aesculetin, Carotenoids: mainly zeaxanthin and Lutein (5). Stigmasterol is an essential ingredient that has been isolated from plants. Stigmasterol considered a progesterone precursor and serves as an intermediate in corticoids, androgens estrogens biosynthesis (10) and vitamin D3 synthesis (3). Stigmasterol is a triterpenes C30-derive phytosterol, naturally happening C28 and C29 carbon steroid alcohols that is similar to cholesterol in structure as well as biological activity (4).in this study Stigmasterol was identified by TLC, Mass analysis. Structure elucidation was performed using, FTIR and Mass analysis. The quantity of Stigmasterol was measured in the Iraqi plant.

Association between cacti and nurse plants: a quantitative literature review

The association between cacti and nurse plants has been reviewed by different authors. These reviews however were qualitative because only evaluated aspects such as species identity of cacti and nurse plants, probable explanatory causes of their association, and location of study sites. To our knowledge, there are no quantitative reviews that have evaluated the association between cacti and nurse plants for different subfamilies, tribes, and growth forms of cacti and nurse plants, and different plant communities and soil properties. To address these issues, we performed a quantitative review of the studies on the association between cacti and nurse plants. The studies were searched in the ISI Web of Knowledge from 1986 to 2021. Data obtained from studies were analyzed with the relative risk ratio and ratio of medians. Most studies on the association between cacti and nurse plants were performed mainly in Mexico and the USA. Globose, cylindrical, and columnar cacti of the subfamily Cactoideae, and tribes Cacteae, Cereeae, and Echinocereeae were associated to nurse plants of Asteraceae, Euphorbiaceae, and Fabaceae. However, other subfamilies (Opuntioideae) and tribes (Notocacteae) of cacti, and families (Asparagaceae) of nurse plants were not associated. Nurse plants ameliorated temperature, moisture, and nitrogen of soil. The association between cacti and nurse plants occurred in desert shrubland and tropical dry forest. Further studies are needed on the association between cacti and nurse plants that consider more cactus subfamilies and tribes in countries with high cactus diversity in Central and South America.

The value of patch testing with plants "as is" in diagnosing plant sensitization.

The number of commercially available plant allergens/extracts is limited and therefore patch testing with fresh/dried plant material may be a necessary supplement in diagnosing plant allergy. To evaluate the usefulness of patch testing with plants "as is" compared to patch testing with commercial and in-house produced plant test materials and to report on species eliciting positive patch test reactions. Consecutive eczema patients, who were patch tested between January 2019 and December 2023 and who had at least one positive reaction to a plant allergen and/or extract and/or plant "as is" were included in the study. A total 57 out of 1893 patients tested (3%) were sensitised to plants. Compositae plants were the most frequent sensitizers, followed by tomato, tulipalin A, falcarinol, and Philodendron plants. In 12 patients (21%), the diagnosis was based on patch testing with fresh plants only. Occupational sensitization occurred in 32%. Other sensitizers included Hydrangea, Pelargonium zonale, and Monstera. A large minority of plant-sensitised patients would have been undiagnosed without patch testing with plants "as is." Most of the culprit plants were known sensitizers, but not commercially available, and these and new species taken into cultivation makes patch testing with fresh plants unavoidable and worthwhile.

In‐Vitro Antimicrobial, Antidiabetic and Anticancer Activities of Calyptocarpus Vialis Extract and its Integration with Computational Studies

AbstractCalyptocarpus vialis (C. vialis), a plant of Asteraceae family exhibits nutritional value, antioxidant properties and has potential for various other biomedical applications. The present study is focused to assess the antimicrobial, antidiabetic, and anticancer potential of C. vialis extract and its integration with computational studies. The antimicrobial activity is performed against the Staphylococcus aureus (S. aureus), Bacillus subtilis (B. subtilis) pseudomonas aeruginosa (P. aeruginosa), Escherichia coli (E. coli) bacteria and Saccharomyces cerevisiae (S. cerevisiae), Candida albicans (C. albicans) fungi using disc diffusion method. Maximum Zone of Inhibition (ZOI) of 37±3.2 and 35±2.9 mm is obtained for S. aureus and B. subtilis respectively, whereas ZOI of 39±2.8 mm is obtained against C. albicans at dose of 500 μg/mL. The extract shows strong α‐amylase inhibition activity with IC50 ~46.8±0.81 μg/mL inferring about its antidiabetic potential. Anticancer activity of C. vialis extract is checked against HCT‐116 and DU‐145 cell lines using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium‐bromide (MTT) assay, which shows excellent anticancer activity with IC50 value of 38.09±0.65 μg/ml and 36.34±1.05 μg/ml respectively. The obtained results are further verified using computational studies considering interaction among phytochemicals and selected targets. Extract is found potent for biological activities and promising candidate for development of new drugs.

Formulation and standardization of calendula officinalis for wound healing

The treatment alternatives are accessible for the administration of most kinds of wounds which intense just as incessant. One operator that has been utilized for a long time for the treatment of dermatological issue and has a numerous quantity of pharmacological activities that are valuable to wound mending that is Calendula officinalis, or pot marigold. Home grown plants give a rich source to social insurance to forestall and treat diverse neurotic states. Calendula officinalis, the pot marigold, normal marigold or Scotch marigold, is a plant of the family Asteraceae. The fundamental synthetic segments found in the flowers are saponins, triterpenes, liquor triterpenes, unsaturated fat esters, carotenoids, flavonoids, coumarines, basic oils, hydrocarbons, and unsaturated fats. Calendula officinalis is a plant that has numerous pharmacological activities like injury mending, aggravation, eye disease, menstrual period issues, ulcer, stomach upset etc. In this investigation, the ethanolic extract methodology is done to acquire the concentrate of calendula officinalis herb just as the tender Thin Layer Chromatography profile of calendula officinalis leaf, blossom and stamps of the plant. This exploratory examination will uncover that calendula officinalis introduced calming properties acting in a positive manner on the provocative of the mending procedure. Extractive value and Ash value also determine the quality of the crude drug and that crude drug ethanolic extract use for the formulation of herbal cream and further evaluation process to be used to test calendula officinalis extract ethanolic herbal cream.

Phytoseiid mites associated with Asteraceae plants in the Pampa biome with description of two new species

ABSTRACT The Brazilian Pampa is predominantly composed of native grasslands with riparian and thickets forest formations, with rich and little known biodiversity of fauna, flora and fungi. The objective of this study was to report phytoseiid species associated with Asteraceae plants from eight physiographic regions of the Pampa biome. Collections were carried out seasonally from November 2021 to August 2022. In each physiographic region, ten species of Asteraceae were collected, totalling 320 samples. Data analysis was mainly based on the relationship between mite and plant. A total of 228 mite specimens of Phytoseiidae were found, represented by 26 species within 12 genera and three subfamilies. Two new species, Amblyseius senecinis n. sp. and Typhlodromus (Anthoseius) bacchariae n. sp. are described and a key to species from the arizonicus group is provided. The most abundant species were Typhlodromalus aripo De Leon, followed by Euseius inouei (Ehara & Moraes), Phytoseius guianensis De Leon, Typhlodromus (Anthoseius) bacchariae n. sp. Neoseiulus californicus (McGregor), N. tunus (De Leon) and Metaseiulus (Metaseiulus) eiko (El-Banhawy).

Understanding pyrethrin biosynthesis: toward and beyond natural pesticide overproduction.

Pyrethrins are natural insecticides biosynthesised by Asteraceae plants, such as Tanacetum cinerariifolium and have a long history, dating back to ancient times. Pyrethrins are often used as low-persistence and safe insecticides to control household, horticultural, and agricultural insect pests. Despite its long history of use, pyrethrin biosynthesis remains a mystery, presenting a significant opportunity to improve yields and meet the growing demand for organic agriculture. To achieve this, both genetic modification and non-genetic methods, such as chemical activation and priming, are indispensable. Plants use pyrethrins as a defence against herbivores, but pyrethrin biosynthesis pathways are shared with plant hormones and signal molecules. Hence, the insight that pyrethrins may play broader roles than those traditionally expected is invaluable to advance the basic and applied sciences of pyrethrins.

Application of natural sweetener Stevia rebaudiana in the medical field

Steviol glycoside sweeteners have been isolated and produced for hundreds of years in Bertoni, a South American Asteraceae plant prized for its sweetness. Stevia is becoming more popular among consumers and food manufacturers as a result of diabetes, rising obesity rates, and other related comorbidities, as well as global public policies calling for a reduction in intake of sugar to help control these issues. Low-calorie as well as no-calorie sweeteners, such as Stevia, have this appeal because they are plant-based, have no calories, and have a sugary flavour that is 50 to 350 times sweeter than table sugar, making them an excellent as well as suitable choice for use in foods as well as beverages with lower sugar and calorie content. This plant yields steviol glycoside sweeteners, which are isolated and processed. Current studies on Stevia rebaudiana extract, metabolism, tolerable intake, and safety, steviol glycoside extraction and purification, side effects, as well as the toxicity of Stevia extract are discussed in detail.

Unique findings of <i>Phoma</i>-like fungi associated with soybean

Ascochyta leaf blight of soybean is a widespread disease caused by several closely related Phoma-like species, this disease often leads to significant crop losses. Among Phoma-like species from Didymellaceae family, the most frequently associated with symptomatic soybean tissues are species of the genera Boeremia and Didymella. Currently reliable species identification in Didymellaceae relies on polyphasic approach based on consolidated species concept and combined molecular phylogenetic, micromorphological and cultural features. At least three loci are commonly used for reconstruction of the molecular phylogeny of Didymellaceae: internal transcribed spacer (ITS) of the ribosomal DNA, partial RNA-polymerase II gene (rpb2), and β-tubulin (tub2). As a result of long-term phytosanitary monitoring of soybean crops, soybean leaves with symptoms of Ascochyta blight were collected from major soybean producing areas of Russia. From surface sterilized plant tissues more than 100 isolates of Phoma-like fungi were obtained and stored in the collection of pure cultures of the Laboratory of Mycology and Phytopathology (MF, All-Russian Institute of Plant Protection). Most of them, as a result of multilocus phylogenetic analysis, were identified as Boeremia and Didymella species. Eight isolates were identified as species of other genera, suspected to be rare findings. The aim of this study was to identify these eight isolates based on multilocus phylogenetic analysis, as well micromorphological, cultural, and pathogenicity data. Multilocus phylogenetic analysis has resulted in identification of all eight isolates to species level. Single isolate from the Ryazan region was Neoascochyta graminicola. Three other from three different districts of the Amur region were Remotididymella capsici. Two isolates from the Primorskiy territory and Amur region were Stagonosporopsis heliopsidis. Another two from two districts of the Amur region were S. stuijvenbergii. Pathogenicity tests have resulted in conclusion, that all studied isolates were not pathogenic for soybean leaves. Probably, these Phoma-like species are associate with soybean as saprophytes or endophytes. For all these Phoma-like species Glycine max was detected as substrate for the first time. Neoascochyta graminicola is widespread in Europe in association with Poaceae plants. There are only two findings of Remotididymella capsici in the world, both from leaves of Capsicum annuum. First finding was made in the former USSR in 1977 and was identified based on only morphological features. Second findings was collected in the Fiji and verified with multilocus phylogenetic analysis. Stagonosporopsis heliopsidis isolates were revealed in the USA, Canada, Netherlands and Russia and this fungus was believed to be specific for Asteraceae plants. Isolates of Stagonosporopsis stuijvenbergii are known only from soil in the Netherlands. Thus, such species as Neoascochyta graminicola and Stagonosporopsis stuijvenbergii were revealed in the Russia for the first time. Studied Remotididymella capsici isolates were first confirmed findings of this fungus in Russia. Additionally to detailed phylogenetic data, the manuscript is supplement with a detailed description of the cultural and micromorphological features of all species.

Comparative Evaluation of the Essential Oil Content of Asteraceae Family Medicinal Plants

Background: The Asteraceae family comprises the largest flowering plant species, which have also been proven to have medicinal value for various illnesses due to the presence of numerous volatile and non-volatile constituents. Objective: The study aims to compare the volatile phytoconstiteunts presence in the essential oils of Asteraceae family plants including Roman Chamomile Oil (Chamaemelum nobile), German Chamomile Oil (Matricaria chamomilla), Davana Oil (Artemisia pallens), Wormwood Oil (Artemisia absinthium), Armoise Oil (Artemisia vulgaris), Tansy Oil (Tanacetum vulgare), Yarrow Oil (Achillea millefolium), Tarragon Oil (Artemisia dracunculus), Tagetes Oil (Tagetes erecta) and Immortelle Absolute Oil (Helichrysum italicum) as simultaneous estimation using the novel methods. Methods: Roman chamomile, German chamomile, davana, wormwood, armoire, tansy, yarrow, tarragon, tagetes, and immortelle absolute oils were extracted by steam distillation from their respective Asteraceae species and carried out the gas chromatography analysis. Results: The result was that GC-MS analysis of selected essential oils contains terpenes and terpenoids in major amounts. Among the detected volatile constituents in crucial oils Methyl Chavicol was found higher 75.63% in Tarragon Oil compared to other constituents followed Neryl acetate (60.25%) found in the immortelle absolute oil, Cis davanone (55.36%) was found in the davana oil, Ocimene (45.58%) in the tagetes oil, α-bisabololoxide B (45.26%) in the German chamomile oil, Beta thujone (50.65%) in the tansy oil, Alpha thujone (40.21%) in the wormwood oil and Camphor (38.65%) in the armoise oil. 1,8-Cineole, Alpha pinene, and Camphene were found in three oils (Wormwood oil, Armoise oil and Yarrow oil) among the selected oils. result: The results revealed the majority of terpenes and terpenoid-natured compounds. Methyl Chavicol (75.634%) was the highest content found in the tarragon oil when compared to the compounds found in the ten Asteraceae essential oils. The compounds such as Neryl acetate (60.251%) werefound in the immortelle absolute oil, Cis davanone (55.3640%) was found in the davana oil, Ocimene (45.5856%) in the tagetes oil, α-bisabololoxide B (45.2655%) in the German chamomile oil, Beta thujone (50.6520%) in the tansy oil, Alpha thujone (40.2150%) in the wormwood oil and Camphor (38.654%) in the armoise oil. 1,8-Cineole, Alpha pinene and Camphene were the compounds found in three of the ten Asteraceae essential oils Conclusion: Finally, we concluded that species from the same family (Asteraceae) were biologically synthesized with different volatile constituents. Hence, each essential oil has a unique biochemical fingerprint. These findings will help the food industry in relation to natural flavoring.

Island biogeography of the megadiverse plant family Asteraceae

The megadiverse plant family Asteraceae forms an iconic component of island floras including many spectacular radiations, but a global picture of its insular diversity is lacking. Here, we uncover the global biogeographical and evolutionary patterns of Asteraceae on islands to reveal the magnitude and potential causes of their evolutionary success. We compile a global checklist of Asteraceae species native and endemic to islands and combine it with macroecological analyses and a phylogenetic review of island radiations. Asteraceae have a global distribution on islands, comprising approximately 6,000 native island species, with 58% endemics. While diversity of the family on islands is lower than expected given its overall diversity, Asteraceae are the most diverse family on oceanic islands, suggesting an exceptional ability to thrive in isolation. In agreement with island biogeography predictions, native Asteraceae diversity increases with area and decreases with isolation, while endemism increases with both. We identify 39 confirmed island radiations and 69 putative radiations, exceeding numbers for other iconic insular groups. Our results reveal Asteraceae offer immense potential for research in ecology and evolution, given their close tracking of island biogeography expectations, large number of both species and radiations, cosmopolitan distribution, and numerous undiscovered radiations.

DETERMINATION OF POLYPHENOLIC COMPOUNDS IN PHYTOEXTRACTS WITH ANTIBACTERIAL PROPERTIES AND STUDY POTENTIAL EFFECTS

Objectives. The research work is a comparative study of the polyphenolic compounds and flavonoid content of the phytoextracts obtained from the ultrasonic extraction process (Stegler DG-360) with 95% ethanol and ethanol-propyleneglycol mixture (in 95 : 5 ratio) from the Clove buds (Caryophyllos aromaticus L. Myrtaceae), hibiscus flowers (Hibiscus sabdariffa L. (Hs, roselle; Malvaceae)) and common yarrow (Achillea millefolium L. Asteraceae) plants, which are rich in biologically active substances with high therapeutic effect, as well as their devoted to the investigation of antioxydant activity and antimicrobial potential. Material and methods. The research work was carried out in the Central Research and Application Laboratory of Ağrı İbrahim Çeçen University (MERLAB), Republic of Turkey, using a Japanese Shimadzu brand Mistral-AB SCIEX 4000 QTRAP liquid chromatograph-mass spectrometer device. Results.It was found that in both extraction processes, the active substances penetrated sufficiently from the medicinal-plant raw materials into the extractant. 20 names of compounds containing polyphenol, flavonoid and anthocyanin derivatives have been determined. However, the amount of active substances in the phytoextract obtained with the presence of the penetrate (propylene glycol) was higher. In particular, rutin ( 75.74 ± 4.91mg/g), quercetin (110.12 ± 1.30 mg/g), gallic acid (4503.19 ± 46.83mg/g), quinic acid (4041.99 ± 187.3 mg/g), chlorogenic acid (582.30 ± 1.30mg/g), vanilin (155.6g/g1 ± 3.95mg/g) prevailed. Conclusion. The research work proves once again that the studied phytoextracts are rich in polyphenolic compounds and flavonoids. The amount of biologically active substances in the phytoextract obtained with the ethanol-propylene glycol mixture which is the penetrate substance (in the ratio of 95:5) is higher than that of the other sample (with 95% ethanol). The resulting amount of biologically active substances is a clear proof that the phytoextract has sufficient antioxidant and antimicrobial properties.

Phytochemistry, Anti-Tyrosinase, and Anti-Diabetes Studies of Extracts and Chemical Constituents of Dicerothamnus rhinocerotis Leaves

Dicerothamnus rhinocerotis (L.f.) Koekemoer, also known as rhinoceros bush and previously called Elytropappus rhinocerotis (L.f.) Less., is from the Asteraceae plant family. The plant is traditionally used to treat indigestion, stomach ulcers, influenza, and diarrhea. This study was aimed at investigating the phytochemistry, anti-glucosidase, anti-amylase, and anti-tyrosinase effects of D. rhinocerotis as research in this area is limited. The air-dried plant materials were macerated in 80% methanol (MeOH) and fractionated between hexane, dichloromethane (DCM), ethyl acetate (EtOAc), and butanol (BuOH). Column chromatography on silica gel was employed for the isolation of the compounds. A total of six compounds (1–6) were isolated from the fractions viz. acacetin (1), 15-hydroxy-cis-clerodan-3-ene-18-oic-acid (2), acacetin-7-glucoside (3), pinitol (4), apigenin (5), and β-sitosterol-3-O-glycoside (6). Compounds 2–4 and 6 are reported for the first time from this plant. Among the different fractions, the BuOH and EtOAc fractions had strong tyrosinase inhibitory activities with IC50 values of 13.7 ± 1.71 and 11.6 ± 2.68 µg/mL, respectively, while among the isolated compounds, apigenin (5) had the strongest inhibitory activity, with an IC50 of 14.58 µM, which competes favorably with Kojic acid (17.26 µM). The anti-glucosidase assay showed good activity in three of the fractions and compound 5, while the anti-amylase assays did not show significant inhibition activity.