Mohamed El-MetwallyPlant Pathology Research Institute | PPATHRI · Mycologycal Research Department
Mohamed El-Metwally
Professor
About
30
Publications
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491
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Citations since 2017
Introduction
Publications
Publications (30)
Four isolates of F. oxysporum were isolated from different localities in Dakahlia Governorate, Egypt. Isolate 3 was the more aggressive one on pea plant (wilt disease incidence 53.9%). The three fungal products, Trichoderma harzianum, T. viride and yeast extract had potent antagonistic effects, but T. harzianum was the best in inhibition of F. oxys...
In the present study, Aspergillus terreus used for the biosynthesis of silver nanoparticle. The A. terreus cell free filtrate reacted with silver nitrate, resulting formation of silver nanoparticles (AgNPs). The AgNP was marked by visual analysis, UV-Vis absorption spectroscopy, Transmission Electron Microscopy (TEM) and Scanning Electron Microscop...
The current methods for controlling root rot and wilt disease caused by Fusarium oxysporum f. sp. radicis-cucumerinum, F. solani, Rhizoctonia solani and Macrophomina phaseolina, the most destructive fungi on cucumber, are not yet rely. Salicylic acid (SA), tartaric acid, GAWDA® formulation, compost, Trichoderma harzianum, Trichoderma hamatum, Trich...
There are many fungi could be isolated from cotton seeds. In this research the following fungi were isolated: Alternaria alternate, Aspergillus flavus, Aspergillus niger, Aspergillus ochraceous, Cephalosporium sp., Fusarium moniliforme, Fusarium oxysporum, Fusarium semitectum, Fusarium solani, Penicillium sp., Rhizoctonia solani, Rhizopus sp., Stem...
Aspergillus species are regularly involved in human broncho-pulmonary diseases, mainly in immunocompromised patients. The essential oils extracted from three different plants were tested for their inhibitory effect on the growth of five pathogenic Aspergilli including Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Aspergillus versico...
In the present study the antimicrobial activity of essential oils of allium bulb (Allium cepa L.), black cumin seeds (Nigella sativa L.) and eucalyptus (Eucalyptus globulus Labill) were evaluated against five fungi (Fusarium oxysporum f.sp. melonis, Fusarium solani, Fusarium verticillioides, Sclerotinia sclerotiorum and Rhizoctonia solani). Allium...
In the present study the antimicrobial activity of essential oils of allium bulb (Allium cepa L.), black cumin seeds (Nigella sativa L.) and eucalyptus (Eucalyptus globulus Labill) were evaluated against five fungi (Fusarium oxysporum f.sp. melonis, Fusarium solani, Fusarium verticillioides, Sclerotinia sclerotiorum and Rhizoctonia solani). Allium...
In the present study, the antifungal activity of Cinnamomum zeylanicum Blume, Trigonellafoenum-graecum L., Eucalyptus globulus Labi 11, Eruca sativa L. and Allium sativum L. extracts were investigated against soil borne pathogenic fungi. The results showed the plant extracts had inhibitory activities on the mycelial growth and spore germination of...
Sclerotinia sclerotiorum is a destructive pathogen of several economically important crops, including soybean, pea, bean, canola and sunflower. This pathogen exhibits little host singularity and has a host range that includes more than 400 primarily dicotyledonous plant species. In this study, the inhibitory effects of 5 essential oils and 4 microe...
losses in yield of melon in Egypt. Laboratory and greenhouse experiments were
performed to evaluate the effects of different biocontrol agents (BCAs) against Fusarium
oxysporum f.sp. melonis. In vitro, Trichoderma viride and Gliocladium virens
significantly reduced the mycelia growth of F. oxysporum f.sp. melonis that produced
86.33 and 86.11% redu...
This study aimed to identify biological contaminants of banana in vitro cultures. We also tested the effect of Zn or ZnO nanoparticles on elimination of some bacterial and fungal contaminants and their influence regeneration. Nine strains of bacterial contaminants (Cellulomonas uda, Cellulomonas flarigena, Corynebacterium panrometabolum, Bacillus m...
This study aimed to identify biological contaminants of banana in vitro cultures. We also tested the effect of Zn or ZnO nanoparticles on elimination of some bacterial and fungal contaminants and their influence regeneration. Nine strains of bacterial contaminants (Cellulomonas uda, Cellulomonas flarigena, Corynebacterium panrometabolum, Bacillus m...
Sclerotinia rot caused by Sclerotinia sclerotiorum is a serious threat to green beans production in Egypt. The pathogenicity of this pathogen to 11 different cultivars was measured by survival plants % in the genotypes. Significant differences were observed between different cultivars (P0.05). Results indicate that, Amy and Giza cultivars were mor...
Two field experiments were carried out to investigate the role of Spermine (SP) as seed soaking and/or foliar application of K and/or Zn in reducing the harmful effects of charcoal rot caused by Macrophomina phaseolina and damping-off caused by Rhizoctonia solani as well as improving the productivity of sunflower plant in calcareous-saline soil. Fr...
There is an urgent need to improve faba bean yield since this plant remains an important part of the human diet. So, experiments have been designed to determine the effect of some bio-compounds on faba bean growth, chemical composition and chocolate spot disease. In vitro, results revealed that Bio Zeid and Bio ARC completely inhibited the linear g...
Two field experiments were carried out during the two growing seasons (2005/2006; 2006/2007) to investigate the role of some plant antioxidant materials such as ascorbic acid, glutathione, alpha-tocopherol and spermine in alleviating the harmful effects caused by soil salt levels (3840 and 6080 mg L(-1)) on wheat plant. The grains were pre-soaked t...
Present objective was to study this phenomenon on the common seed-borne fungi of faba bean in soil amended with composted organic wastes and infested with the most commonly isolated fungi from Vicia faba seed. In vitro studies showed that the yeast was effective in reducing the linear growth of Cephalosporium sp., F. verticillioides , F. oxysporum...
Root rot caused by soil borne pathogenic fungi is the most sever disease attacks lupine plants. Isolation trials from diseased plants in some areas of Dakahlia Province (Egypt) was carried out. Rhizoctonia solani and Fusarium solani proved to be the most dominant isolates. Meanwhile, Fusarium oxysporum and Sclerotium rolfsii were less frequent. Eff...
Seed soaking method or foliar spray of antioxidants (citric acid and salicylic acid at 10 mM) and microelements (manganese and zinc at 2 g L<SUP>-1</SUP>) were tested to control of the damping-off and charcoal rot diseases of sunflower (varieties Sakha 53 and Giza 102). Field treatments in two different localities i.e., Tag El-Ezz, Dakahlia provinc...
This study was undertaken to study the seed-borne fungi of faba bean that attack the plants and reduce their yield in Egypt. The results provide a database for further study to control the pathogens. Twenty-six seed samples representing six faba bean cultivars collected from different parts of Egypt were used in this investigation. The blotter and...
A method suitable for detecting the slow growing seed-borne fungi of peanut was developed. Twenty-five seed samples collected from commercial markets in Egypt were used in this investigation. With the Standard Moistened Blotter Method (SBM) and Deep-Freezing Blotter method (DFB) recommended by the International Seed Testing Association, saprophytes...
Fifty seed samples of peanut seed collected from the commercial markets of Egypt were tested for the presence of seed-borne fungi. Twenty-seven fungal species were isolated and identified. Use of the blotter seed health testing method resulted in the isolation of a larger number of seed-borne fungi than the deep freezing method. The deep freezing m...
Six antioxidants were tested in vitro and in vivo against seed-borne fungi of peanut. Hydroquinone showed a highly significant effect on the growth of the following fungi: Cephalosporium sp., Fusarium moniliforme, F. oxysporum, F. solani, Rhizoctonia solani, Sclerotium bataticola and Verticillium sp. Soaking peanut seeds in a 20 mM water solution o...
Projects
Project (1)
The goals of this self funding project is to address Green chemicals as a potential to control plant diseases, scaling up crop production along with higher quality . Minimize accumulation of heavy metals in the edible parts of plants irrigate with industrial and municipal contaminants found in irrigating water. Moreover, reduce the over dependence on the toxic pesticides . This work also integrated in solving the serious gab between the production of food and the explosive increase of population in the third world
