Nashwa Mohamed Ateaf Sallam

Nashwa Mohamed Ateaf Sallam
Assiut University · Faculty of Agriculture - Department of Plant Pathology

Professor

About

43
Publications
13,892
Reads
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498
Citations
Additional affiliations
November 2020 - present
Assiut University/ Egypt
Position
  • Professor
Description
  • Plant disease diagnose- Biological control- study interaction between plant and pathogens
Education
October 1994 - December 2020
Assiut University
Field of study
  • Plant patholoy

Publications

Publications (43)
Article
Full-text available
One of the most significant diseases is the bacterial blight of beans caused by Xanthomonas phaseoli pv. phaseoli. In the present study, different concentrations of clove oil were evaluated on in vitro growth inhibition of X.s phaseoli pv. phaseoli (Xap3), whereas its in vivo effects on disease severity, and bacterial colony-forming units, were inv...
Article
Full-text available
Botrytis cinerea is a destructive phytopathogenic ascomycete causing severe pre- and postharvest yield losses in tomato-growing areas worldwide. Due to fungicide resistance development in B. cinerea strains, its chemical control has become a serious challenge for tomato growers. In the present investigation, 47 fungal isolates were obtained and scr...
Article
Full-text available
This study deals with the potentiality of salicylic (SA) and benzoic (BA) acids for controlling the common blight of beans (CBB) caused by Xanthomonas axonopodis pv. phaseoli (Xap). Impacts of the application of SA and BA (1.2 µg mL−1) on the plant biological parameters, bacterial count, disease severity, phenolic and salicylic acid contents as wel...
Article
Full-text available
Calotropis procera (Aiton) Dryand (commonly known as the apple of sodom, calotrope, and giant milkweed) is an evergreen, perennial shrub of the Apocynaceae family, and is mainly found in arid and semi-arid regions. Previous studies have established the toxic effects of Calotropis procera (C. procera) (Aiton). Its extract is used as one of the vital...
Article
This study aimed to use thyme volatile oil (TVO) to control potato bacterial wilt disease caused by Ralstonia solanacearum and to explore the biochemical responses in relation to defense enzymes that induce resistance against pathogens in plants. In vitro experiments showed that all tested concentrations of TVO (1 µl, 2, 4, 6, 8, and 10 µl ml−1) si...
Article
Tomato plants displaying early blight symptoms were collected from different localities in the provinces of Assiut and Sohag, Egypt. The causal pathogens were isolated on potato dextrose agar plates. Pathogenicity tests with 48 isolates were carried out under greenhouse conditions on tomato cultivar (CV 844). All tested isolates caused symptoms of...
Article
Full-text available
Background Fungal endophytes produce many secondary metabolites that can reduce root rot diseases. Soybean is a particularly important crop worldwide. Endophytic fungi can be isolated, identified, and incorporated into sustainable agriculture for the biological control of many diseases. Results The aim of this study was to isolate some endophytic...
Article
The current research aims to evaluate the susceptibility of the tomato of the tomato (Solanum lycopersicum) cultivars 65,015 (CV1), Basma (CV2), Dalia (CV3), 320 (CV4), and 844 (CV5) to early blight disease caused by Alternaria solani, A. alternata, and Curvularia lunata under greenhouse conditions. All five cultivars were inoculated with the teste...
Preprint
Full-text available
Tomato plants displaying early blight symptoms were collected from different localities in the provinces of Assiut and Sohag, Egypt. The causal pathogens were isolated on potato dextrose agar plates. Pathogenicity tests with 48 isolates were carried out under greenhouse conditions on tomato cultivar (CV 844). All tested isolates caused symptoms of...
Article
Full-text available
Abstract This study aimed to evaluate the efficiency of Enterobacter cloacae PS14 and Trichoderma asperellum T34 in the control of potato wilt, caused by Ralstonia solanacearum (Smith), under greenhouse and field conditions. In vitro, the endophyte E. cloacae PS14 caused the highest reduction of the pathogen growth among 7 screened bacteria. It pro...
Article
Full-text available
The present study aimed to investigate the potential application of chitosan for controlling green mold disease of orange fruits (“Baladi” sweet orange fruits) caused by Penicillium digitatum under in vitro and in vivo conditions (during storage conditions). The effect of chitosan under different concentrations (0.01, 0.025, 0.05, 0.125, 0.25, 0.5,...
Article
Full-text available
Seven isolates of Trichoderma spp. (from T1 to T7) from Egypt were tested In vitro against Fusarium oxysporum f. sp. Lycopersici (FOL) (T&FOL) on tomato plants. The greatest percentage of inhibition against the tested pathogenic isolate was found with Trichoderma isolate (T7) followed by Trichoderma isolate (T3). In greenhouse experiments, applicat...
Article
Full-text available
Several antioxidants namely ascorbic acid, salicylic acid, sodium benzoates, thiouria and catechol were used as seed treatment and foliar spraying to reduce the incidence of root and pod rot diseases of peanut caused by (Fusarium oxysporum, Fusarium solani and Fusarium moniliforme) as well as to determine of phenolic compounds and oxidative enzymes...
Article
Full-text available
The aim of this study was to evaluate the different carrier formulations of antagonistic bacteria on incidence of root rot disease of cantaloupe. Twenty-seven isolates of bacteria isolated from rizosphere cantaloupe plants (collected from different localities of the Assiut Governorate, Egypt) were tested in vitro against the growth of Fusarium sola...
Article
Full-text available
Pathogenicity tests of twenty-six fungal isolates were tested on peanut plants (Giza 5 cv.) and the results revealed that, Fusarium oxysporum isolate (No. I) followed by F. solani (No. II) then F. moniliforme (No III) significantly caused highest incidence of root rot disease. Also, F. moniliforme (No III) followed by F. solani (No II) then F. oxys...
Article
Full-text available
For this study, 21 isolates of fungi belonging to Rhizoctonia and Fusarium genera were isolated from the diseased faba bean plants, obtained from the different localities in Assiut governorate, showing root rot and wilt symptoms. The isolates proved to be pathogenic on Masr 1 faba bean cultivar under greenhouse conditions. F. oxysporum isolates cau...
Article
Full-text available
The antimicrobial activity of six plant extracts from ocimum basilicum (Sweat Basil), Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander), and Allium sativum (Garlic) was tested for controlling Alternaria solani in vitro and in vivo. In in vitro study the leaf extracts of D. s...
Article
Full-text available
The aim of this study was to evaluate the bacterium Rahnella aquatilis (Ra) for protection of bean plants against common blight disease caused by Xanthomonas axonopodis pv. phaseoli (Xap). Xap isolates were isolated from a naturally blighted leaves of bean plants grown in Assiut governorate. The blight symptoms were produced by all three isolates,...
Article
Full-text available
The effect of lime, thyme, comphore oils against Penicittium digitatum, the causes of green mould disease of orange fruits, was evaluated for their inhibitory effect in vitro and in vivo during storage conditions. In vitro experiments, different concentration of each essential oil at 1, 5 and 10% (v/v) was tested on the growth of P. digitatum. The...
Article
Full-text available
The objective of this work to study the effect of six plant extracts, Ocimum basilicum (Sweat Basil), Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander) and Allium sativum (Garlic) against Alternaria solani in vitro and in vivo. In in vitro study the leaf extracts of D. stram...
Article
Full-text available
The APIZYM system of detection of enzymes was proven to be useful in the differentiation of 15 European and Egyptian isolates of S. cepivorum, the incitant of onion white rot. The tested isolates produced alkaline phosphatase, esterase (c4), esterase lipase (c8), leucine arylamidase, valinearylamidase, trypsine, α-chymatrypsin, acid phosphatase, na...
Article
Full-text available
The tested European and Egyptian isolates of Sclerotium cepivorum were able to infect Giza 6 onion cultivar causing white rot disease with a different degrees of disease severity (ranging from sever to weak). The pattern of esterase isozymes produced by the tested isolates of the pathogen showed two main bands (arrows) which were different in densi...
Article
Full-text available
In vitro, B. subtilis, T. harzianum, T. viride, T. spirale and C. minitans isolates showed different inhibitory effects against the growth of S. cepivorum. T. harzianu. While T. spirale showed the greatest antagonistic effect to the pathogen, followed by T. viride and B. subtilis isolates. However, isolates of C. minitans showed a slight antagonist...
Article
Full-text available
Twenty-two yeast strains were screened for their efficacy in suppression of root-knot nematode Meloidogyneincognita on Flame Seedless grapevines. The most effective seven strains were chosen to study their effect on nematode population in vitro and in vivo as well as their impact on crop productivity and fruit quality. Data showed that all treatmen...

Questions

Questions (2)
Question
I have diffrent Isolats of Trichoderma and I would like to determin a virdine as a secondary metabolites
Question
Can anyone provide me any information about the metabolism of Mycorrhizae and it role on the phytopathogen control?

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