Egyptian Plants Research Articles

Future vision of using nuclear energy for desalination plants in Egypt

Future vision of using nuclear energy for desalination plants in Egypt

Molecular Characterization of Different Phytoplasma Isolates Affecting New Hosts from Ornamental Plants in Egypt

Molecular Characterization of Different Phytoplasma Isolates Affecting New Hosts from Ornamental Plants in Egypt

Screening of rhizospheric actinobacteria isolated from different cultivated plants in Egypt

Screening of rhizospheric actinobacteria isolated from different cultivated plants in Egypt

Pathological and Molecular Variability of Fusarium oxysporum f.sp lycopersici Infecting Tomato in Egypt.

Tomato wilt disease is one of the most destructive fungal diseases infecting tomato plants in Egypt. The disease is caused by

Business Roundup

BUSINESS Business Roundup ShareShare onFacebookTwitterWechatLinked InRedditEmail C&EN, 2022, 100 (43), p 15December 5, 2022Cite this:C&EN 100, 43, 15AbstractElementis will sell its chrome chemical business to Yildirim Group in a deal valued at $170 million. The business, which had sales of $171 million last year, is the only chromium chemical producer in North America. Braskem CEO Roberto Simões is stepping down at the end of the year. He will be succeeded by Roberto Bischoff, who was with the Brazilian chemical maker from 1979 to 2019. Keliber says it is preparing to start construction on a $600 million facility in Finland that it expects to produce 15,000 metric tons per year of lithium hydroxide. The company also plans to open a lithium mine nearby. Honeywell and Egypt’s Environ Adapt for Recycling Industries have signed an agreement to develop a plastics recycling plant in Egypt. It would use Honeywell’s Upcycle pyrolysis technology. TotalEnergies will build a plant in Carling, France, that makes polypropylene compounds for the auto industry with upView: PDF | Full Text HTML

Taxonomic Studies on the Flowers and Fruits of Some Solanoideae Plants in Egypt

Taxonomic Studies on the Flowers and Fruits of Some Solanoideae Plants in Egypt

Comparative morphological and chemical studies on some verbenaceous plants in Egypt

Comparative morphological and chemical studies on some verbenaceous plants in Egypt

Efficacy of six essential oils for the management of Meloidogyne incognita in eggplant and their effect on the expression of plant defense genes

Hydrodistilled essential oils from six Egyptian plants were analyzed by gas chromatography/mass spectrometry (GC/MS). The essential oils were tested for their nematicidal activity against Meloidogyne incognita as well as their effect on the expression of defense genes of eggplant. Artemisia judaica oil (LC50 = 37.15 mg/L) had the highest toxicity against second-stage juveniles (J2), followed by Origanum vulgare and Callistemon viminalis oils. Likewise, A. judaica essential oil (IC50 = 15.68 mg/L) caused the greatest reduction in egg hatching and it was three times more active than oxamyl. In greenhouse experiment, the essential oils of A. judaica, O. vulgare and C. viminalis reduced gall and egg numbers per eggplant, and J2 numbers in soil at 500 and 1000 mg/L. Moreover, the essential oils improved the growth of eggplant and increased the expression of eggplant defense genes, chitinase, thaumatin-like proteins, and polyphenol oxidase, compared with control. The information obtained from this study suggests that the essential oils of A. judaica, O. vulgare and C. viminalis have a potential to be used for the management of M. incognita.

Random Forest modelling and evaluation of the performance of a full-scale subsurface constructed wetland plant in Egypt

This article presents a methodology to evaluate and model the performance of subsurface horizontal constructed wetland (SHCW) in Samaha village, Egypt's Delta. The influent and effluent biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), total phosphorus (TP), and total nitrogen (TN) were measured and analyzed for the period 2018–2020. The Random Forest process (RF) was applied to predict the removal efficiency of BOD, COD, and TSS using 112 samples, 90% of samples were used as training and 10% as a test. The results show removal efficiency of 72, 77, 78, 49, and 31%, for BOD, COD, TSS, TP, and TN respectively. The Random Forest modeling fit the results well with coefficient of determination (R2) for removal efficiency of BOD, COD, and TSS equal to 0.66, 0.68, and 0.79, respectively. The Random Forest process is a good way to come up with effective management and mitigation strategies.

Advanced studies on spiders associated with pests on cotton plants in Egypt

Advanced studies on spiders associated with pests on cotton plants in Egypt

Morphological description of Laevicaulisstuhlmanni (Simroth, 1895) (Pulmonata, Veronicellidae) from Egypt.

Terrestrial slugs and snails are increasingly becoming serious pests of agricultural, horticultural and ornamental plants in Egypt, resulting in major economic losses. This paper provides a detailed morphological and anatomical description of the veronicellid slug Laevicaulisstuhlmanni (Simroth, 1895) that has been recently recorded from Egypt. This population from Egypt is compared with Laevicaulis populations recently reported and described from Libya as L.striatus (Simroth, 1896) and with available data in literature. Some notes and a distribution map of the veronicellids introduced in north-eastern Africa are provided.

Experimental and process design of a treatment system to remove Aluminium ions from lean sludge in an Egyptian water treatment plant

Aluminium ions traces in drinking water were found in El Khanka Water Treatment plant in Egypt because of the lean sludge generated from Alum’s use in water treatment. This research studies using natural clay such as “bentonite” known as montmorillonite clay and combining bentonite – cationic polymer as coagulants to remove aluminium salts from lean sludge. Experimental studies were performed to determine the effect of adding bentonite on the removal of aluminium ions from lean sludge based on variation of pH. 98.8% removal of Al ions was achieved at pH 11, and 0.6 ppm concentration of bentonite in the sludge solution. Kinetic model of pseudo-second-order was found to be the best to describe the reaction and the rate constant of 11.922 mol.-1 s-1 was calculated. An industrial process was suggested to the removal of Aluminium ions and brief economic estimate of applying it in Egypt was prepared as well.

Screening of rhizospheric actinobacteria isolated from different cultivated plants in Egypt

Screening of rhizospheric actinobacteria isolated from different cultivated plants in Egypt

Cytotoxic Activity of Some Egyptian Plants against Hepatic Human Cancer Cell Line, In-vivo Anticancer Activity and Bio-guided Isolation of Active Extracts

Cytotoxic Activity of Some Egyptian Plants against Hepatic Human Cancer Cell Line, In-vivo Anticancer Activity and Bio-guided Isolation of Active Extracts

An In-Depth Examination of the Natural Radiation and Radioactive Dangers Associated with Regularly Used Medicinal Herbs.

The specific activity of U-238 and Th-232, as well as K-40 radionuclides, in twenty-nine investigated medicinal herbs used in Egypt has been measured using a high-purity germanium (HP Ge) detector. The measured values ranged from the BDL to 20.71 ± 1.52 with a mean of 7.25 ± 0.54 (Bq kg−1) for uranium-238, from the BDL to 29.35 ± 1.33 with a mean of 7.78 ± 0.633 (Bq kg−1) for thorium-232, and from 172 ± 5.85 to 1181.2 ± 25.5 with a mean of 471.4 ± 11.33 (Bq kg−1) for potassium-40. Individual herbs with the highest activity levels were found to be 20.71 ± 1.52 (Bq kg−1) for uranium-238 (H4, Thyme herb), 29.35 ± 1.33 (Bq kg−1) for thorium-232 (H20, Cinnamon), and 1181.2 ± 25.5 (Bq kg−1) for potassium-40 (H24, Worm-wood). (AACED) Ingestion-related effective doses over the course of a year of uranium-238 and thorium-232, as well as potassium-40 estimated from measured activity concentrations, are 0.002304 ± 0.00009 (minimum), 0.50869 ± 0.0002 (maximum), and 0.0373 ± 0.0004 (average)(mSv/yr). Radium equivalent activity (Raeq), annual gonadal dose equivalent (AGDE), absorbed gamma dose rate (Doutdoor, Dindoor), gamma representative level index (I), annual effective dose (AEDtotal), external and internal hazard index (Hex, Hin), and excess lifetime cancer risk were determined in medicinal plants (ELCR). The radiological hazards assessment revealed that the investigated plant species have natural radioactivity levels that are well within the internationally recommended limit. This is the first time that the natural radioactivity of therapeutic plants has been measured in Egypt. In addition, no artificial radionuclide (for example, 137Cs) was discovered in any of the samples. Therefore, the current findings are intended to serve as the foundation for establishing a standard safety and guideline for using these therapeutic plants in Egypt.

The Synergetic Effect of Egyptian Portulaca oleracea L. (Purslane) and Cichorium intybus L. (Chicory) Extracts against Glucocorticoid-Induced Testicular Toxicity in Rats through Attenuation of Oxidative Reactions and Autophagy.

Long-term glucocorticoids can alter sperm motility, vitality, or morphology, disrupting male reproductive function. This study scrutinized the synergistic benefits of two Egyptian plants against dexamethasone (Dexa)-induced testicular and autophagy dysfunction in male rats. Phytochemical ingredients and the combination index were estimated for Purslane ethanolic extract (PEE) and Chicory water extract (CWE). Four control groups received saline and 100 mg/kg of each PEE, CWE, and PEE/CWE, daily for 8 weeks. Dexa (1 mg/kg daily for 6 weeks) induced infertility where PEE, CWE, and PEE/CWE were given. Seminal analysis, male hormones, glycemic and oxidative stress markers, endoplasmic reticulum (ER) stress markers (Sigma 1R and GRP78), and autophagy regulators (Phospho-mTOR, LC3I/II, PI3KC3, and Beclin-1, P62, ATG5, and ATG7) were measured. The in vitro study illustrated the synergistic (CI < 1) antioxidant capacity of the PEE/CWE combination. Dexa exerts testicular damage by inducing oxidative reactions, a marked reduction in serum testosterone, TSH and LH levels, insulin resistance, ER stress, and autophagy. In contrast, the PEE and CWE extracts improve fertility hormones, sperm motility, and testicular histological alterations through attenuating oxidative stress and autophagy, with a synergistic effect upon combination. In conclusion, the administration of PEE/CWE has promised ameliorative impacts on male infertility and can delay disease progression.

Anti-cancer effect of some Egyptian natural plants extraction against prostate cancer cells

Anti-cancer effect of some Egyptian natural plants extraction against prostate cancer cells

Screening of some Egyptian plants for milk clotting activity

Screening of some Egyptian plants for milk clotting activity

Incidence, Molecular Detection, and Partial Nucleotide Sequencing of Some Viruses Causing Fig Mosaic Disease (FMD) on Fig Plants in Egypt.

Fig mosaic disease (FMD) is a viral disease that poses a significant danger to Egypt's fig-producing economy. During the two growing seasons 2017 and 2018, fig leaves and fruits displaying a variety of symptoms linked with fig mosaic disease (FMD) were collected and differentiated from the most famous fig-growing governorates in Egypt, Mersa Matruh, Ismailia, and Giza. Symptomatic samples were tested for the presence of fig mosaic virus (FMV), fig leaf mottle-associated virus 1 (FLMaV-1), fig leaf mottle-associated virus 2 (FLMaV-2), fig mild mottle-associated virus (FMMaV), fig latent virus 1 (FLV-1), fig fleck-associated virus (FFkaV), and fig cryptic virus (FCV) using reverse transcription-polymerase chain reaction (RT-PCR) with specific primers. Three viruses were detected in mixed infections and showed positive results. FMV was detected with infection rate 49% followed by FLMaV-2 with infection rate 21.8% and FLMaV-1 with infection rate 10.9%, respectively, whereas all tested samples were negative for the other viruses. According to the sequence and phylogenetic analysis, the Egyptian FMV isolate was closely related to other FMV isolates, particularly the Argentina ones (Acc. No. KP796424), with 99% identity. While FLMaV-1 showed more than 98% identity with reference isolate FLMaV-1 (Acc. No. LN873219), on the other hand, the isolate of FLMaV-2 showed 100% identity with reference FLMaV-2 isolate (Acc. No. FJ473383) based on phylogenetic analysis. Because fig output in Egypt is expanding, our findings suggest that greater attention should be paid to improving the phytosanitary condition of fig trees in Egypt.

(Microbiological and Chemical Quality Assessment of Soft White Cheese Produced by Large Egyptian Dairy Plants)

(Microbiological and Chemical Quality Assessment of Soft White Cheese Produced by Large Egyptian Dairy Plants)