Biological control of Protomycopsis phaseoli, the causal agent of leaf smut of cowpea

Among the bacteria and fungi associated from the soil where cowpea was grown and tested for antagonism against Protomycopsis phaseoli, Bacillus sp. inhibited the radial growth, Fusarium oxysporum, yeast, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii and Trichoderma sp. reduced r...

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Veröffentlicht in:Journal of phytopathology 1999-12, Vol.147 (6), p.371-375
Hauptverfasser: Adejumo, T.O, Ikotun, T, Florini, D.A
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Ikotun, T
Florini, D.A
description Among the bacteria and fungi associated from the soil where cowpea was grown and tested for antagonism against Protomycopsis phaseoli, Bacillus sp. inhibited the radial growth, Fusarium oxysporum, yeast, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii and Trichoderma sp. reduced radial growth of P. phaseoli. In vitro studies showed that T. harzianum was an active hyperparasite and more effective in reducing the radial growth of P. phaseoli than T. koningii and Trichoderma sp. Spore suspensions of the three Trichoderma spp. prevented the germination of chlamydospores of P. phaseoli. In the field, when applied as spray, Trichoderma sp. was found to be more active in reducing the spread of leaf smut disease than T. harzianum and T. koningii. Zusammenfassung Aus Boden, in dem Augenbohnen wuchsen, wurden verschiedene Bakterien und Pilze isoliert und auf antagonistische Wirkung gegen Protomycopsis phaseoli geprüft. Bacillus sp. hemmte das Radiärwachstum des Pathogens; Fusarium oxysporum, Hefe, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii und Trichoderma sp. verringerten es. In‐vitro‐Versuche ergaben, dai T. harzianum ein aktiver Hyperparasit war und das Radiärwachstum von P. phaseoli stärker reduzierte als T. koningii und Trichoderma sp. Sporensuspensionen der drei Trichoderma‐Arten verhinderten die Keimung der Chlamydosporen von P. phaseoli. Nachdem die drei Trichoderma‐Arten durch Spritzen im Feld ausgebracht worden waren, verlangsamte Trichoderma sp. die Ausbreitung des Blattbrandes stärker als T. harzianum und T. koningii.
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In vitro studies showed that T. harzianum was an active hyperparasite and more effective in reducing the radial growth of P. phaseoli than T. koningii and Trichoderma sp. Spore suspensions of the three Trichoderma spp. prevented the germination of chlamydospores of P. phaseoli. In the field, when applied as spray, Trichoderma sp. was found to be more active in reducing the spread of leaf smut disease than T. harzianum and T. koningii. Zusammenfassung Aus Boden, in dem Augenbohnen wuchsen, wurden verschiedene Bakterien und Pilze isoliert und auf antagonistische Wirkung gegen Protomycopsis phaseoli geprüft. Bacillus sp. hemmte das Radiärwachstum des Pathogens; Fusarium oxysporum, Hefe, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii und Trichoderma sp. verringerten es. In‐vitro‐Versuche ergaben, dai T. harzianum ein aktiver Hyperparasit war und das Radiärwachstum von P. phaseoli stärker reduzierte als T. koningii und Trichoderma sp. 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In vitro studies showed that T. harzianum was an active hyperparasite and more effective in reducing the radial growth of P. phaseoli than T. koningii and Trichoderma sp. Spore suspensions of the three Trichoderma spp. prevented the germination of chlamydospores of P. phaseoli. In the field, when applied as spray, Trichoderma sp. was found to be more active in reducing the spread of leaf smut disease than T. harzianum and T. koningii. Zusammenfassung Aus Boden, in dem Augenbohnen wuchsen, wurden verschiedene Bakterien und Pilze isoliert und auf antagonistische Wirkung gegen Protomycopsis phaseoli geprüft. Bacillus sp. hemmte das Radiärwachstum des Pathogens; Fusarium oxysporum, Hefe, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii und Trichoderma sp. verringerten es. In‐vitro‐Versuche ergaben, dai T. harzianum ein aktiver Hyperparasit war und das Radiärwachstum von P. phaseoli stärker reduzierte als T. koningii und Trichoderma sp. 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Psychology</topic><topic>fungal antagonists</topic><topic>fungal diseases of plants</topic><topic>Fungal plant pathogens</topic><topic>fungal spores</topic><topic>fungus control</topic><topic>growth</topic><topic>hyperparasitism</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protomycopsis</topic><topic>Protomycopsis phaseoli</topic><topic>spore germination</topic><topic>Vigna</topic><topic>Vigna unguiculata</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Adejumo, T.O</creatorcontrib><creatorcontrib>Ikotun, T</creatorcontrib><creatorcontrib>Florini, D.A</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of phytopathology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adejumo, T.O</au><au>Ikotun, T</au><au>Florini, D.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biological control of Protomycopsis phaseoli, the causal agent of leaf smut of cowpea</atitle><jtitle>Journal of phytopathology</jtitle><date>1999-12</date><risdate>1999</risdate><volume>147</volume><issue>6</issue><spage>371</spage><epage>375</epage><pages>371-375</pages><issn>0031-9481</issn><issn>0931-1785</issn><eissn>1439-0434</eissn><coden>JPHYEB</coden><abstract>Among the bacteria and fungi associated from the soil where cowpea was grown and tested for antagonism against Protomycopsis phaseoli, Bacillus sp. inhibited the radial growth, Fusarium oxysporum, yeast, Aspergillus fumigatus, Trichoderma harzianum, Trichoderma koningii and Trichoderma sp. reduced radial growth of P. phaseoli. 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subjects Biological and medical sciences
Biological control
biological control agents
Control
field experimentation
Fundamental and applied biological sciences. Psychology
fungal antagonists
fungal diseases of plants
Fungal plant pathogens
fungal spores
fungus control
growth
hyperparasitism
Phytopathology. Animal pests. Plant and forest protection
Protomycopsis
Protomycopsis phaseoli
spore germination
Vigna
Vigna unguiculata
title Biological control of Protomycopsis phaseoli, the causal agent of leaf smut of cowpea
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