Influence of the mycorrhizal fungus, Glomus coronatum, and soil phosphorus on infection and disease caused by binucleate Rhizoctonia and Rhizoctonia solani on mung bean (Vigna radiata)

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dc.contributor.authorKasiamdari, R.
dc.contributor.authorSmith, S.
dc.contributor.authorSmith, F.
dc.contributor.authorScott, E.
dc.date.issued2002
dc.descriptionThe original publication can be found at www.springerlink.com
dc.description.abstractRoot-infecting fungal pathogens and also parasites, which do not cause major disease symptoms cause problems of contamination in pot cultures of arbuscular mycorrhizal (AM) fungi.We investigated the effect of the AM fungus, Glomus coronatum Giovannetti on disease caused by binucleate Rhizoctonia sp. (BNR) and R. solani in mung bean in the absence (P0) and presence (P1) of added soil phosphorus (P). When G. coronatum and BNR or R. solani were inoculated at the same time, G. coronatum improved the growth of the plants and reduced colonization of roots by BNR, but not by R. solani. R. solani reduced the growth of non-mycorrhizal mung bean in P0 soil 6 weeks after inoculation, whereas BNR had no effect on growth. G. coronatum reduced the severity of disease caused by BNR or R. solani on mung bean in both soil P treatments. When G. coronatum was established in the roots 3 weeks before BNR or R. solani was added to the potting mix, there was no significant effect of BNR or R. solani on growth of mung bean. Prior colonization by G. coronatum slightly reduced indices of disease caused by BNR or R. solani. In both experiments, addition of P stimulated plant growth and reduced the colonization of roots by BNR, but had little effect on disease severity. We conclude that the reduction of the effect of BNR or R. solani on mung bean could not be explained by improved P nutrition, but could be attributed to the presence of G. coronatum within and among the roots.
dc.identifier.citationPlant and Soil: international journal on plant-soil relationships, 2002; 238(2):235-244
dc.identifier.doi10.1023/A:1014400701819
dc.identifier.issn0032-079X
dc.identifier.issn1573-5036
dc.identifier.orcidScott, E. [0000-0001-6829-519X]
dc.identifier.urihttp://hdl.handle.net/2440/27787
dc.language.isoen
dc.publisherKluwer Academic Publ
dc.source.urihttps://doi.org/10.1023/a:1014400701819
dc.subjectAM fungus
dc.subjectcolonization
dc.subjectdisease severity
dc.subjectP nutrition
dc.subjectRhizoctonia
dc.subjectVigna radiata
dc.titleInfluence of the mycorrhizal fungus, Glomus coronatum, and soil phosphorus on infection and disease caused by binucleate Rhizoctonia and Rhizoctonia solani on mung bean (Vigna radiata)
dc.typeJournal article
pubs.publication-statusPublished

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