Pathogenicity and Pectinase Activity of Some Facultative Mycoparasites Isolated from Vicia faba Diseased Leaves in Relation to Photosynthetic Pigments of Plant

Saleem, A.

doi:10.4172/2157-7471.1000141

J Plant Pathol Microb

2012

DOI: 10.4172/2157-7471.1000141

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Pathogenicity and Pectinase Activity of Some Facultative Mycoparasites Isolated from Vicia faba Diseased Leaves in Relation to Photosynthetic Pigments of Plant

A. Saleem¹

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Cited by 2 publications

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Biocontrol Potential of Rhizospheric Fungi from Moringa Oleifera, their Phytochemicals and Secondary Metabolite Assessment Against Spoilage Fungi of Sweet Orange (Citrus Sinensis)

Omomowo

Adedayo²,

Omomowo³

2020

AJAS

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This investigative study aimed to assess the antifungal potential of Trichoderma viride and Penicillium chrysogenum isolated from Moringa oleifera rhizosphere against spoilage fungi of Citrus sinensis, as well as evaluate their phytochemical profile.Â The bio-agents (T. viride and P. chrysogenum) and the Citrus sinensis spoilage fungi were isolated following standard microbiological protocols. Initial in-vitro screening of the isolated bio-agents against the citrus pathogens in the confrontational assay was done. Phytochemical screening and antifungal activity of metabolites produced by the bioagents against the pathogens were also investigated. The inhibitory concentration (minimum/maximum: MIC and MFC) of the bioagent metabolites on the citrus pathogens was also assessed. The isolation screening investigation indicated that citrus pathogens isolated were P. digitatum, A. wenti, C. tropicalis and F. oxysporum and that P. digitatum had the highest frequency (43 %) of occurrence. The results also revealed that T. viride and P. chrysogenum significantly inhibited the pathogens on petri-plates using dual-confrontational assay. The phytochemical profile of the bioagents indicated there were flavonoids, cardiac glycosides, phenols, alkaloids, tannins, saponins and steroids present. Metabolites of the bioagents against the pathogens indicated that T. viride recorded the highest MIC against Fusarium oxysporum77Â±1.0and the highest MFC against Aspergillus wentti 97Â±1.0. Also, P. chrysogenum recorded the highest MIC against Fusarium oxysporum 59Â±1.0 and the highest MFC against Fusarium oxysporum74.33Â±1.52. This study indicated the antagonistic potentials of using Trichoderma viride and Penicillium chrysogenum in controlling pathogens of citrus sinensis and this could be exploited further in formulating biopesticides to improve post-harvest qualities of Citrus.

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Biocontrol Potential of Rhizospheric Fungi from Moringa Oleifera, their Phytochemicals and Secondary Metabolite Assessment Against Spoilage Fungi of Sweet Orange (Citrus Sinensis)

Omomowo

Adedayo²,

Omomowo³

2020

AJAS

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Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

El-Shahir¹

2014

Afr. J. Plant Sci.

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Seventy-five species and 3 species varieties belonging to 21 fungal genera were collected from air, soil and leaf surface of broad bean plant on dicholran chloramphenicol malt extract agar (DCMA) and dichloran Rosebengal chloramphenicol agar (DRBC) at 28°C. The results obtained from leaf surface (phyllosphere and phylloplane), soil and atmosphere were basically similar in the two types of media and the most common fungi were: Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Cladosporium cladosporioides, Cladosporium sphaerospermum and Drechslera neergaardii. The monthly counts of these fungi on two types of media irregularly fluctuated giving maxima value at various months. A. flavus was the highest fungi that produced both exo-and endo-ß-1,4-glucanases among the 9 tested isolates. Maximum production of two enzymes by A. flavus was 8 and 6 days after incubation at 30°C with culture medium containing glucose and cellulose as carbon sources and sodium nitrate as nitrogen source and initially adjusted to pH 6.

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Pathogenicity and Pectinase Activity of Some Facultative Mycoparasites Isolated from Vicia faba Diseased Leaves in Relation to Photosynthetic Pigments of Plant

Cited by 2 publications

References 46 publications

Biocontrol Potential of Rhizospheric Fungi from <i>Moringa Oleifera</i>, their Phytochemicals and Secondary Metabolite Assessment Against Spoilage Fungi of Sweet Orange (<i>Citrus Sinensis</i>)

Biocontrol Potential of Rhizospheric Fungi from <i>Moringa Oleifera</i>, their Phytochemicals and Secondary Metabolite Assessment Against Spoilage Fungi of Sweet Orange (<i>Citrus Sinensis</i>)

Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

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