Seed-Borne Pathogens of Faba Bean in Egypt: Detection and Pathogencity

Elwakil, M. A.; El-Refai, I. M.; Awadallah, O. A.; El-Metwally, M. A.; Mohammed, Mustapha

doi:10.3923/ppj.2009.90.97

Cited by 38 publications

(37 citation statements)

References 6 publications

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“…The most common fungi isolated from faba bean as reported by Abdel-Hafez (1988) and El-Wakil et al (2009) were more or less different from those in isolated during the present investigation. This may be due to the variation of faba bean cultivars or the conditions of storage.…”

Section: Discussioncontrasting

confidence: 66%

“…All pots were maintained in the greenhouse under natural conditions during winter season and watered as needed (El-Wakil et al, 2009). Fifteen days after sowing, the disease ratios were determined by recording the number of nonemerged seeds, while post-emergence and surviving plants were recorded 30 days after sowing.…”

Section: Greenhouse Experiments Pathogenicity Testing Of Predominant mentioning

confidence: 99%

“…Many fungal pathogens were isolated from faba bean seeds such as Alternaria spp., Ascophyta fabae, Aspergillus spp., Botry tis cinerea, B. fabae, Cephalosporium sp., Cladosporium sp., Epicoccum sp., Fusarium spp., Mucor sp., Penicillium spp., Rhizoctonia sp., Rhizopus sp., Stemphylium sp., Tri chothecium sp., and Verticillium sp. (Neergard, 1979;Abdel-Hafez, 1988;El-Wakil et al, 2009). Seed abortion, shrunken seeds, reduction of seed size, seed rot, seed necrosis, seed discoloration, reduction in germination capacity and physiological alterations in seed are the symptoms caused by these pathogens (Neergard, 1979).…”

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confidence: 99%

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Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Baka¹

2015

Acta Phytopathologica et Entomologica Hungarica

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Seed samples of four Egyptian broad bean cultivars were tested for seed-borne fungi. The deep freezing method was used to isolate twelve seed-borne fungi viz., Alternaria alternata, Aspergillus flavus, A. niger, Botrytis fabae, Cladosporium cladosporioides, Fusarium oxysporum, F. solani,, Penicillium italicum, Rhizoc tonia solani, Rhizopus stolonifer, Stemphylium globuliferum and Trichothecium roseum from the broad bean cultivars viz., Giza 3, Giza 429, Giza 843 and Misr 1. Aspergillus flavus, Botrytis fabae, Fusarium oxysporum and Penicillium italicum were the most predominant fungal species. Aqueous extracts from five wild medicinal plants (Asclepias sinaica, Farsetia aegyptia, Hypericum sinaicum, Phagnalon sinaicum, and Salvia aegypti aca) which were collected from the Sinai Peninsula, Egypt were tested against the predominant fungal pathogens. All the aqueous plant extracts significantly inhibited the mycelial growth of these fungi, but the extract of Asclepias sinaica exhibited the strongest antifungal activity. The maximum seed germination rate was observed in infested Giza 843 and minimum in Misr 1. Treating seeds with plant extract of Asclepias sinaica (10%) enhanced the percentage of seed germination of all cultivars in both laboratory and pot experiments. Maximum root and shoot lengths of seedlings were recorded in Giza 843 during fungal infestation or treatment by plant extract. In greenhouse experiment, the aqueous A. sinaica extract reduced disease severity and total pigments but increased total phenolics and fruit yield.

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Section: Discussioncontrasting

confidence: 66%

Section: Greenhouse Experiments Pathogenicity Testing Of Predominant mentioning

confidence: 99%

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confidence: 99%

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Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Baka¹

2015

Acta Phytopathologica et Entomologica Hungarica

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“…Li et al [20] showed that the infection of Trifolium repens leaf tissue with Alternaria azukiae decrease its pigment content. Recently, Elwakil et al [27] that out of 5 fungal strains tested for their capacity of producing endopolygalacturonase, strains of Aspergillus niger and A. oryzae were the best producers. Recently, Gouda [59] found that among 39 fungal isolates tested for the ability of producing pectinase enzymes on solid medium, one isolate only related to Emericella nidulans produced pectinase enzymes.…”

Section: Photosynthetic Pigmentsmentioning

confidence: 99%

“…Faheed et al [26] mentioned that, infected tomato seedlings with Alternaria solani showed highly significant decrease in the contents of chlorophyll a, chlorophyll b, carotenoids and consequently total pigments compared to the control. Elwakil et al [27] Pectins are high molecular weight polysaccharides found in higher plants. They form the primary cell wall and the main components of the middle lamella [29].…”

Section: Introductionmentioning

confidence: 99%