Citomorphological, cultural, molecular and pathogenical characterization of rhizoctonia solani kühn associated with rice in tocantins, Brazil

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dc.contributor.authorSouza, Elaine Costa [UNESP]
dc.contributor.authorKuramae, Eiko Eurya
dc.contributor.authorNakatani, Andreia Kazumi
dc.contributor.authorBasseto, Marco Antonio [UNESP]
dc.contributor.authorPrabhu, Anne Sitarana
dc.contributor.authorCeresini, Paulo Cezar [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFungal Biodiversity Center-Institute of the Royal Netherlands Academy of Arts and Sciences
dc.contributor.institutionCordeirópolis
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionLFW B28
dc.date.accessioned2022-04-28T20:47:25Z
dc.date.available2022-04-28T20:47:25Z
dc.date.issued2007-01-01
dc.description.abstractIn Tocantins State, Northern Brazil, the incidence of Rhizoctonia sheath blight on rice is important, causing significant yield losses on rice crops under irrigation. The main objective of this research was to determine the anastomosis group (AG) of R. solani associated with rice in that area, testing the hypothesis that these isolates are from the AG-1 IA, which is also associated with the soybean leaf blight occurring i n wet ar eas of Nor t her n Br azi l . Al l t he f our r i ce i sol at es wer e char act er i zed, by hyphal f us i on, as AG-1 I A. By cul t ur al charact eri zat i on, based on basal t emperat ures for mycel i al growt h (mi ni mum, opt i mum and maxi mum), t he ri ce i sol at es had growt h profile similar to the tester isolates AG-1 IA, AG-1 IB and AG-1 IC. The rice isolates were characterized as autotrophic for thiamine, as well as the AG testers AG-1 IA, IB, IC, AG-4 HGI and the soybean leaf blight isolate SJ-047. The pathogenicity test on rice IRGA-409 and the cross pathogenicity on soybean IAC-18 (susceptible to the leaf blight disease) indicated that, besides causing sheath blight, these rice i sol at es al so cause l eaf bl i ght on soybean. Si mi l arl y, t he soybean isolates SJ-047 was pathogenic to rice. The sequences from the ITS-5.8S region of rDNA from the rice isolates were similar to sequences of AG-1 IA deposited at GenBank®-NCBI. The ITS-rDNA phylogeny indicated a common phylogenetic group formed by these rice isolates, t he i s ol at e SJ-047 and t he t es t er AG-1 I A. Thus, bas ed on cytomorphological, cultural, phylogenetics and pathogenic attributes, the hypothesis that the rice isolates of R. solani from Tocantins all belong to the AG-1 IA was confirmed, besides the indication that these isolates can also cause soybean foliar blight.en
dc.description.affiliationUNESP – Campus de Ilha Solteira Dept. Fitoss. Eng, Rural e Solos, CP 31
dc.description.affiliationUFMS – Centro Universitário de Três Lagoas voluntária da UNESP
dc.description.affiliationCentraalbureau voor Shimimmelcultures (CBS) Fungal Biodiversity Center-Institute of the Royal Netherlands Academy of Arts and Sciences
dc.description.affiliationCAPTA-Citros Sylvio Moreira Cordeirópolis
dc.description.affiliationEMBRAPA Arroz e Feijão
dc.description.affiliationSwiss Federal Institute of Technology-ETHZ Institute of Integrative Biology LFW B28
dc.description.affiliationUnespUNESP – Campus de Ilha Solteira Dept. Fitoss. Eng, Rural e Solos, CP 31
dc.description.affiliationUnespUFMS – Centro Universitário de Três Lagoas voluntária da UNESP
dc.format.extent129-136
dc.identifier.citationSumma Phytopathologica, v. 33, n. 2, p. 129-136, 2007.
dc.identifier.issn0100-5405
dc.identifier.scopus2-s2.0-57449116151
dc.identifier.urihttp://hdl.handle.net/11449/225357
dc.language.isopor
dc.relation.ispartofSumma Phytopathologica
dc.sourceScopus
dc.subjectAnastomosis groups
dc.subjectCross-pathogenicity
dc.subjectPhylogeny
dc.subjectRibossomal DNA
dc.subjectSoybean
dc.titleCitomorphological, cultural, molecular and pathogenical characterization of rhizoctonia solani kühn associated with rice in tocantins, Brazilen
dc.titleCaracterização citomorfológica, cultural, molecular e patogênica de rhizoctonia solani kühn associado ao arroz em tocantins, Brasilpt
dc.typeArtigo

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Artigos - Fitossanidade, Engenharia Rural e Solos - FEIS