Retama Monosperma Research Articles (Page 1)

Invasive plant species threaten ecosystems by decreasing biodiversity and altering their functioning. Recent findings suggest that endophytes play a crucial role in germination and early seedling development, which may enhance plant invasion success. This study aimed to characterize the culturable seed endophytes of invasive Acacia spp. and coexisting Portuguese native Fabaceae (Erophaca baetica, Genista triacanthos, Retama monosperma, Stauracanthus genistoides and Ulex jussiaei) within two habitats: Dune and Forest. We compared seed microbial endophytes, their richness, diversity, and functional traits. Microbial communities were obtained through classical microbiology, followed by 16S rRNA and ITS region sequencing for identification. The most relevant functional traits were predicted using FAPROTAX and FungalTraits. A total of 150 isolates, 99 bacterial and 51 fungal, were identified. A distinct clustering of microbial communities was observed in Dune and Forest, indicating environment dependency. Invasive Acacia spp. had the richer and more diverse culturable microbiomes when compared with native species, acquiring a subset of microbial partners shared with natives. In Dune habitat, there was higher similarity of seed endophyte communities between Acacia and native plants than in Forest. Functional traits were more diverse in invasive than in native species, especially for bacteria; fungi had functions complementary to bacteria in all plant species. General functions were related to metabolism, biocontrol and hormonal growth promotion, which are beneficial traits that enhance germination. This study highlights the ability of Acacia spp. to acquire locally beneficial endophytes in invaded areas, which may enhance their invasion success.

Strain NR3T, an endophytic bacterium, was isolated from the root nodules of Retama monosperma collected in the coastal dunes of Cap-Falcon beach, northwestern Algeria. Its taxonomic position was determined using a polyphasic approach. Analysis of the 16S rRNA gene sequence revealed that strain NR3T shared the highest pairwise sequence similarity with Pseudomonas canavaninivorans HB002T (99.6%), Pseudomonas alvandae SWRI17T (99.5%), Pseudomonas bijieensis L22-9T (99.5%), and Pseudomonas tehranensis SWRI196T (99.4%). Further 16S rRNA phylogenetic analysis confirmed these species as its closest relatives. Multi-locus sequence analysis (MLSA) based on four housekeeping genes (16S rRNA, gyrB, rpoB and rpoD) positioned strain NR3T in a distinct, well-separated clade, differentiating it from all other Pseudomonas species. A comprehensive phylogenomic analysis, conducted using the Type (Strain) Genome Server and genome-scale phylogenetic reconstruction, based on a concatenated alignment of 72 housekeeping genes reinforced the unique phylogenetic placement of strain NR3T, highlighting its divergence from its closest relatives, including P. canavaninivorans HB002T, P. alvandae SWRI17T, while identifying "Pseudomonas agronomica" SAICEU22T as its nearest phylogenetic neighbor. Whole-genome sequence comparisons using digital DNA-DNA hybridization (dDDH) and pairwise orthologous average nucleotide identity (OrthoANIu) yielded values well below the species delineation thresholds (39.0 and 38.6% for dDDH, 89.5 and 89.2% for OrthoANIu), further confirming that strain NR3T represents a distinct Pseudomonas species. The genome of strain NR3T consists of 5,694,417 bp with a G + C content of 60.7% and is predicted to encode 5102 coding sequences (CDSs). Notably, several genes associated with plant growth-promoting traits, particularly those involved in phosphate solubilization, were identified, suggesting its potential for enhancing sustainable agricultural practices. The phenotypic characterization revealed that strain NR3T is a Gram-negative, rod-shaped, motile bacterium. It grows at temperatures ranging from 4 to 47°C, with an optimum at 28°C, within a pH range of 5.0 to 10.0 (optimum at pH 7), and tolerates NaCl concentrations up to 4% (w/v), with optimal growth at 0.5%. The predominant cellular fatty acids of strain NR3T are C16:0, summed feature 2 (C14:0 3-OH/C16:1 iso I), and summed feature 8 (C18:1 ω7c/C18:1 ω6c). Based on phylogenetic, genomic, and phenotypic analyses, strain NR3T (= DSM 117380T = CIP 112483T = LMG 33617T) is designated as the type strain of a novel Pseudomonas species, for which the name Pseudomonas algeriensis sp. nov. is proposed.

We investigated how water restriction affects plant–plant interactions in two Mediterranean shrubs, Thymus carnosus Boiss and Retama monosperma (L.) Boiss, to test whether intra- and interspecific interactions between these species respond differently to drought. A greenhouse experiment was conducted with 5-month-old seedlings under three interaction types (interspecific, isolation, and intraspecific). After a 7-month growth phase, a water restriction treatment was imposed, and shoot water potential and photochemical efficiency of chlorophyll were monitored weekly. Biomass allocation and stable isotope composition were analysed at the end of the experiment. Retama plants growing alone exhibited the highest relative elongation rate (9.6 cm day−1 per plant), whereas for the combinations involving Thymus, the highest relative elongation rate occurred under intraspecific competition (3.63 cm day−1 per plant). Results showed a negative effect of Retama on Thymus regarding drought response, while Thymus exhibited an intraspecific facilitation effect, improving growth and reducing water stress. Although Thymus produced less biomass than Retama—with Retama producing over 2 g root biomass per plant compared to 0.25 g in Thymus and >7 g aboveground biomass versus 2.7 g in Thymus—it maintained better physiological response to drought than Retama, where all combinations involving Retama showed water potential below −2.3 MPa in both species. These findings reveal contrasting strategies: Retama prioritises rapid growth but is drought-sensitive, whereas Thymus benefits from intraspecific facilitation that enhances drought tolerance. Our results highlight how drought can alter the balance between competition and facilitation in plant interactions, with implications for Mediterranean plant communities’ dynamics under climate change.

Range-expanding species, or neonatives, are native plants that spread beyond their original range due to recent climate or human-induced environmental changes. Retama monosperma was initially planted near the Guadalquivir estuary for dune stabilisation. However, changes in the sedimentary regime and animal-mediated dispersal have facilitated its exponential expansion, threatening endemic species and critical dune habitats. The main objective of this study was to identify the key functional traits that may explain the competitive advantage and rapid spread of R. monosperma in coastal dune ecosystems. We compared its seasonal responses with those of three co-occurring woody species, two native (Juniperus phoenicea and J. macrocarpa) and one naturalised (Pinus pinea), at two sites differing in groundwater availability within a coastal dune area (Doñana National Park, Spain). We measured water relations, leaf traits, stomatal conductance, photochemical efficiency, stable isotopes, and shoot elongation in 12 individuals per species. Repeated-measures ANOVA showed significant effects of species and species × season interaction for relative water content, shoot elongation, effective photochemical efficiency, and stable isotopes. R. monosperma showed significantly higher shoot elongation, relative water content, and photochemical efficiency in summer compared with the other species. Stable isotope data confirmed its nitrogen-fixing capacity. This characteristic, along with the higher seasonal plasticity, contributes to its competitive advantage. Given the ecological fragility of coastal dunes, understanding the functional traits favouring the success of neonatives such as R. monosperma is essential for biodiversity conservation and ecosystem management.

Retama monosperma is a medicinal plant widely used in traditional medicine across the Mediterranean region to treat various conditions, including diabetes, rheumatism, hyperlipidemia, and hypertension. The present study aimed to investigate the enzyme (α-amylase, α-glucosidase, and tyrosinase) inhibitory activity as well as the photoprotective effect of the extracts of R. monosperma stem. Organic solvent (hexane, ethyl acetate, and ethanol) extracts of R. monosperma stem were obtained by Soxhlet extraction, while aqueous extract was obtained by maceration. The α-amylase and α-glucosidase inhibitory activities of the extracts were investigated in vitro using the spectrophotometric method. Furthermore, the efficacy of the extracts as dermo-protective and photoprotective agents were evaluated by tyrosinase inhibitory activity and by ultraviolet absorbance test. The results showed that the hexane extract exhibited the highest α-amylase inhibitory activity (IC50 = 273.91 ± 0.61 µg/mL), for the α-glucosidase inhibitory activity, the aqueous extract demonstrated the highest potency (IC50 = 2331.12 ± 2.69 µg/mL). The aqueous extract showed the highest tyrosinase inhibitory activity (615.52 ± 2.54 µg QE/mg extract). Additionally, the 10 mg/mL aqueous extract displayed significant photoprotective activity, with high UVA (1.810 ± 0.031) and UVB (2.112 ± 0.008) absorbance values. The results of this study have highlighted the therapeutic potential of R. monosperma, and established a solid foundation for future research on natural therapies and the development of innovative drugs for the treatment of hyperglycemia and pigmentation disorders.

Nowadays, nanoparticles (NPs) are used to counteract various medicinal and industrial problems. This study aimed to biosynthesize zinc oxide NPs (ZnONPs) from the plant species Aloe vera L., Peganum harmala L., Retama monosperma L., and Thymelaea hirsuta L. The biosynthesized ZnONPs were referred to as “Thymhirs.bio-ZnONP,” “Aloever.bio-ZnONP,” “Retam.bio-ZnONP,” and “Harm.bio-ZnONP.” A UV-visible spectrophotometer, granulometry, Fourier transform infrared spectroscopy, and electron paramagnetic resonance were used for physicochemical characterization. Pharmacokinetics and antimicrobial effects were explored using combined in vitro and computational assays. An abundance of phenolic acids and flavonoids was observed, particularly rutin, quinic acid, apigenin-7-O-glucoside, and cirsiliol, which may act as reducing, stabilizing, and capping agents in the biosynthesis. ZnONPs demonstrated strong antimicrobial activity against various bacterial, fungal, and yeast strains, highlighting their potential medicinal applications. This inhibitory activity can be attributed to the effect of the plant-based ZnO nanosized particles more than to the plant extracts or Zn salt. Computational modeling revealed that the identified phytochemicals (phenolic acids and flavonoids) bound Tyrosyl-tRNA Synthetase (TyrRS) from S. aureus (1JIJ), aspartic proteinase from C. albicans (2QZW), and wheat germ agglutinin (2UVO) with considerable affinities, which, together with molecular interactions and pharmacokinetics, satisfactorily support the in vitro antimicrobial findings. This study lays the groundwork for future research and pharmaceutical explorations aimed at harnessing the likely beneficial properties of green-synthesized ZnONPs for medicinal and therapeutic purposes, particularly their antimicrobial effects.

Retama monosperma is a medicinal plant widely used in traditional medicine across the Mediterranean region to treat various conditions, including diabetes, rheumatism, hyperlipidemia, and hypertension. The present study aimed to investigate the enzyme (α-amylase, α-glucosidase, and tyrosinase) inhibitory activity as well as the photoprotective effect of the extracts of R. monosperma stem. Organic solvent (hexane, ethyl acetate, and ethanol) extracts of R. monosperma stem were obtained by Soxhlet extraction, while aqueous extract was obtained by maceration. The α-amylase and α-glucosidase inhibitory activities of the extracts were investigated in vitro using the spectrophotometric method. Furthermore, the efficacy of the extracts as dermo-protective and photoprotective agents were evaluated by tyrosinase inhibitory activity and by ultraviolet absorbance test. The results showed that the hexane extract exhibited the highest α-amylase inhibitory activity (IC50 = 273.91 ± 0.61 µg/mL), for the α-glucosidase inhibitory activity, the aqueous extract demonstrated the highest potency (IC50 = 2331.12 ± 2.69 µg/mL). The ethyl acetate extract showed the highest tyrosinase inhibitory activity (313.68 ± 0.88 µg QE/mg extract). Additionally, the 10 mg/mL aqueous extract displayed significant photoprotective activity, with high UVA (1.810 ± 0.031) and UVB (2.112 ± 0.008) absorbance values. The results of this study have highlighted the therapeutic potential of R. monosperma, and established a solid foundation for future research on natural therapies and the development of innovative drugs for the treatment of hyperglycemia and pigmentation disorders.

Biosynthesis of ZnO NPs and ZnO$$\Vert $$CuO NC using Retama monosperma L. (Boiss) stems extract and their cationic dyes removal from wastewater under direct sunlight irradiation

A thorough polyphasic taxonomic study, integrating genome-based taxonomic approaches, was carried out to characterize the RB5T strain isolated from root nodules of Retama monosperma growing on the coastal dunes of Bousfer Beach (Oran, Algeria). The 16S rRNA gene sequence analysis revealed that strain RB5T had the highest similarity to Pseudomonas granadensis LMG27940T (98.94%) and Pseudomonas gozinkensis IzPS32dT (98.73%). Phylogenetic studies, including both 16S rRNA gene sequence and multilocus sequence analysis using 16S rRNA, gyrB and rpoD housekeeping genes, positioned RB5T in a distinct branch alongside its closest relative, P. granadensis LMG27940T. Phylogenomic analysis using the Bac120 marker set and Type (Strain) Genome Server confirmed the unique position of RB5T and its close relationship with P. granadensis LMG27940T. Similarly, genomic comparisons using average nucleotide identity based on blast (ANIb) and digital DNA-DNA hybridization (dDDH) revealed values of 92.85 and 59.3%, respectively, when compared with its closest relative, P. granadensis LMG27940T. Both values fall below the established species delimitation thresholds of 95-96% for ANIb and 70% for dDDH, providing strong genomic evidence that strain RB5T represents a novel species. Further average nucleotide identity comparisons with unclassified Pseudomonas spp. (384 genomes) and metagenomic-derived genomes from the Genome Taxonomy Database (GTDB) showed values between 84.27 and 89.2%, indicating that strain RB5T belongs to a unique evolutionary line. The genome of RB5T, with a size of 6 311 310 bp and a G+C content of 60%, harbours several key genes associated with plant growth-promoting traits, making it a promising candidate for sustainable agriculture. Phenotypically, RB5T strain is an aerobic, rod-shaped, Gram-negative, non-spore-forming bacterium that is motile with a single polar flagellum. It grows under a wide range of temperature (4-42 °C) and pH (5-10) conditions and tolerates up to 6% (w/v) NaCl. The main cellular fatty acid composition of RB5T includes C16:0, C17:0 cyclo and the summed features 3 consisting of C16:1 ω7c/C16:1 ω6c. Based on the phylogenetic, phenotypic, chemotaxonomic and genome comparison analyses, strain RB5T was identified as a novel species of the genus Pseudomonas, for which the name Pseudomonas retamae sp. nov. is proposed. The type strain is RB5T (=DSM 117471T=LMG 33633T=CIP 112482T).

Retama monosperma, locally referred to as R'tem, is a leguminous (Fabaceae) shrub. It is distinguished by its small white flowers, deciduous leaves, and photosynthetic cladodes. This species spontaneously and abundantly grows in numerous Moroccan natural forests and coastal areas with sandy soils. 8 Communities across North Africa and the Mediterranean Basin have historically used these plants in their traditional medicine for the treatment of a broad spectrum of diseases. These natural remedies are applied in skin care, alleviating joint pain, and reducing inflammation. Furthermore, these plants are employed in the treatment of healing in circumcisions, eczema, and rheumatism. 9,10 Numerous studies in the chemical composition of various sections of R. monosperma, reported the abundance of this species with diverse bioactive compounds. The main components found in this species are dipiperidine and quinolizidine alkaloids, notably Sparteine, Ammodendrine, Cytisine, and Anagyrine. 11 Pinitol, a type of cyclitol, has also been found. 12 Additionally, this species contains flavonoids, both aglycones and glycosides, such as Kaempferol, Genistin, Genistein, Daidzin, and Rutin. 13 Previous pharmacological studies have shown that extracts from various sections of R. monosperma possess diverse pharmacological activities. the alkaloids within these extracts have been shown to exhibit antifungal and antibacterial activities. [14] [15] [16] Additionally, these extracts have demonstrated antioxidant capabilities in vitro, 15, 17 anticancer effects against cervical cancer cell lines, anti-aging capacity, 13 and in vivo anti-inflammatory capacity. 18 Many analgesic agents pose notable risks of toxicity after acute and chronic use, leading to potential side effects such as gastrointestinal upset, gastric ulcers, bleeding, and liver damage. Therefore, considerable research is directed towards exploring medicinal plants known for their analgesic properties, mainly due to their various biological compounds, which offer

Retama monosperma is an endemic plant of the Mediterranean region that has been traditionally used in folk medicine to treat various ailments. It contains a variety of bioactive phytochemicals and exhibited several biological activities. This study aimed to assess the phytochemical screening, total phenolic, total flavonoid, and total tannin compounds, as well as the antioxidant capacity and antimicrobial activity. The phytochemical screening involved color reactions, characteristic reagents, and precipitation methods. Total phenolic, flavonoid, and tannin compounds were quantified using colorimetric methods across four fractions. Antioxidant capacity was assessed using 2,2-Diphenyl-1-picrylhydrazyl radical scavenging, ferric reducing antioxidant power, 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging, and phosphomolebdenum assay. The antimicrobial activity was evaluated through disc diffusion method and the microdilution assay. Qualitative phytochemical tests revealed the presence of flavonoids, tannins, terpenoids, alkaloids, and sterols. Quantification of total phenolic, flavonoid, and tannin compounds confirmed the richness of polyphenolic compounds in all fractions. The antioxidant capacity measurements revealed that the ethanol fractions exhibited the highest antioxidant capacity in 2,2-Diphenyl-1-picrylhydrazyl, ferric reducing antioxidant power assays, and phosphomolebdenum assay. Conversely, the aqueous fraction showed highest activity in the 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) assay. Regarding antimicrobial activity, the ethyl acetate fraction demonstrated superior efficacy against Staphylococcus aureus, and Bacillus cereus. These findings suggest that R. monosperma could serve as a valuable source of antioxidant and anti-infective phytocompounds.

Appropriate disposal of huge amount of sewage sludge generated in urban areas pose a serious threat to the environment. The urban wastewater treatment sludge has the potential as mineral organic amendment strategy in th fight against wind erosion through planting of Retama monosperma in Algeria. In the present study, the sewage sludge was sampled at the Bousfer –Oran wastewater treatment plant, and amended with different cultivation substrates. Further, its influence on the growth of young R. monosperma, plants, with an aim to replant them at sandy littoral deposits. The preliminary results of our work showed that the replanting of young Retamaplants in the substrate formed by a mixture of mud and limestone showed improved growth compared to the fourteen other substrates tested, from the point of view of structure, texture and fertilizing abilities.The sample of a mixture of clay and mud had a compact structure for the seeds to germinate. However, the growth of young plants transplanted into the latter was found to be improved giving an acceptable result considering the contributions of this organic amendment.

Components of medicinal plants have many pharmacological activities, including antioxidant activity, playing an important role in limiting oxidative stress that can cause several damages. This paper characterizes polyphenols of Retama monosperma L., Berberis vulgaris L. and Ricinus communis L. plant extracts and evaluates their antioxidant activity by DPPH, conjugated diene and TBARS assay. To ensure the quality of analytical results, this paper presents performance criteria of the validated method using UHPLC/DAD/ESI-MS. Regarding method validation, the results confirm different used tests and evaluate detection and quantification limits. Concerning the characterization and study of antioxidant activity, realized testing showed that R. monosperma is rich in isoflavone, flavone and flavonol. For R. communis, we notice the presence of rutin as a major compound. Meanwhile, B. vulgaris contains significant amounts of gallic acid and p-coumaric acid. These plant extracts have high antioxidant activity due to the presence of phenolic compounds.

In Egypt, the taxonomic identity of the taxa under genus Retama Raf., 1838 (Fabaceae) is still unclear and its morphological resemblance precludes its identification. The current study aims to resolve the taxonomic identity of the species belonging to genus Retama in Egypt and clarify the morphological, molecular, and geographic distribution characterised each species. To achieve these goals, the fresh and herbarium Retama specimens were used for morphological investigations using 94 macro-morphological characters while the Inter Simple Sequence Repeats (ISSR) markers were used for the molecular identity. This revision revealed the identification of two distinct species namely: Retama raetam (Forsskk.) Webb. and Retama monosperma (L.) Boiss with five forms under R. raetam (Forms 2, 4, 6, 7, and 8). In addition to Form 5 from under R. monosperma; the morphological and molecular identities of forms showed variations in the meanwhile it's clustering were congruent. The geographic distribution of the Retama taxa in Egypt was elucidated. This study highlights the urgent need for Retama species conservation, due its vulnerability to climatic change.

Retama monosperma L. (Boiss.) or Genista monosperma L. (Lam.), known locally as "R'tam", is a spontaneous and annual herb that belongs to the Fabaceae family. It is native to the Mediterranean regions, specifically in the desert areas and across the Middle Atlas in Morocco. This plant has been extensively used in folk medicine and it is rich in bioactive compounds, including polyphenols, flavonoids, and alkaloids. Current research efforts are focusing on the development of novel natural drugs as alternatives to various organic and non-organic chemical products from Retama monosperma. In addition, extract, and isolated compounds obtained from different parts of the chosen plant have been described to exhibit multiple biological and pharmacological properties such as antioxidant, anti-aging, anti-inflammatory, antihypertensive, anti-helminthic, disinfectant, diuretic, and hypoglycemic effects. The plant-derived extract also acts as an antimicrobial agent, which is highly efficient in the treatment of bacterial, viral, and fungal infections. Its antiproliferative effects are associated with some mechanisms, such as the inhibition of cell cycle arrest and apoptosis. In light of these assessments, we critically highlight the beneficial effects of the flowers, stems, seeds extracts, and isolated compounds from R. monosperma (L.) Boiss in human health care, industrial, and other applications, as well as the possible ways to be employed as a potential natural source for future drug discovery.

In coastal dunes, shrub encroachment disrupts natural disturbance, and reduces habitat heterogeneity and species composition. In this paper, we implemented a pilot scale trial aimed at restoring coastal dunes affected by the encroachment by the shrub Retama monosperma (hereinafter Retama) as well as strengthening the populations of Thymus carnosus (regionally cataloged as ‘Critically Endangered’). A total 3 ha of Retama shrub was clearcut in two sites with different Retama cover (54 and 72%). The effect of rabbits on vegetation recovery was assessed by placing exclosures both in treated and untreated plots in Spring, 2015. Plant composition, species richness and diversity were evaluated two years after treatments (with and without Retama clearing, and with and without rabbit exclusion). Retama clearing alone did not allow the recovery of plant composition typical of gray dunes two-years after treatments, but resulted in a biodiversity loss within the Retama understorey when rabbits were present. However, Retama clearing resulted in a significant vigor improvement of T. carnosus in the site with the highest density of Retama. Rabbit exclusion significantly increased species richness and Shannon-Wiener diversity index, and allowed the recovery of plant composition typical of gray dunes. The results suggest that shrub encroachment caused by Retama has a long-lasting negative impact on dune vegetation and that periodic clearing should be combined with rabbit exclusion at least during early restoration stages of dune vegetation. To recover the population of T. carnosus, Retama should be prevented from reaching high cover and periodic clearing without rabbit exclusion is suggested.

In this study, Retama monosperma extract (RME) was used for the green synthesis of silver nanoparticles (RME-AgNPs). RME's phenolic profile was identified by liquid chromatography coupled to mass spectroscopy (LC-ESI/MS/MS) technique. A tentative identification of 21 phenolic metabolites from the extract was performed. The produced RME-AgNPs showed UV absorbance at 443 nm. FTIR spectroscopy confirmed the presence of RME functional groups. In addition, XRD analysis confirmed the crystallography of RME-AgNPs via exhibiting peaks with 2θ values at 38.34°, 44.29°, and 64.65°. RME-AgNPs were spherical with particle sizes ranging from 9.87 to 21.16 nm, as determined by SEM and HR-TEM techniques. The zeta potential determined the particle's charge value as −15.25 mv. RME-AgNPs exhibited significantly higher antibacterial activity against Gram-negative (Escherichia coli, Pseudomonas aeruginosa, Serratia marcescens, and Klebsiella pneumoniae) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) compared to RME. Moreover, the SEM images of green-synthesized nanoparticles revealed severe damage and deformation in the bacterial cell wall of the different strains subjected to the current investigation. The bioinformatics study identified 266 targets, among which only 41 targets were associated with bacterial infections. The PI3K-Akt and Relaxin signaling pathways were the top KEGG signaling pathways. Molecular docking was also performed for the 21 identified compounds at the TNF-α active site; kaempferol-3-O-robinoside-7-O-rhamnoside had a higher binding energy (−6.8084). The findings of this study warrant the use of green-synthesized AgNPs from Retama monosperma as potential antibacterial agents.

Anticancer Potential of Retama monosperma (L) Boiss in the Beni Mellal Khenifra Region

Studying the biometric characteristics of the stems of plant species has been of great interest to researchers in the wood and paper industry. The use of plant fibers has been widespread in the fields of composites, buildings, insulation, plastics and automobiles. The present study aimed to investigate the biometric characteristics of the stem fibers of local Algerian plant species, viz. Group 1 (Lygeum spartum and Stipa tenacissima), Group 2 (Linum usitatissimum in the greenhouse and Linum usitatissimum in natural conditions), Group 3 (Retama monosperma and Retama raetam) and Group 4 (Phoenix dactylifera and Ricinus communis). The extraction process was carried out using 1 M NaOH at 60 °C for 48 hours, and the fiber length was calculated for all the species using a micrometer. The fiber length of stems of all the species ranged from 0.36 to 5.18 mm. Then, the difference between each of the two species was approximated using Student's test. The results obtained showed that the t value ranged from 0.50 to 1.79 for Groups 4 and 1, respectively. There was no significant difference between them. These results suggest that these species are promising raw materials for paper production due to their adequate fibre length.

The use of medicinal plants against cancer: An ethnobotanical study in the Beni Mellal-Khenifra Region in Morocco