Lipoxygenase activity in Brazilian rice cultivars with variable resistance to leaf blast disease

dc.contributor.authorSandhu, Sardul Singh
dc.contributor.authorMazzafera, Paulo
dc.contributor.authorAzini, Luiz Ernesto
dc.contributor.authorBastos, Cândido Ricardo
dc.contributor.authorColombo, Carlos Augusto
dc.date.accessioned2024-05-14T20:12:36Z
dc.date.available2024-05-14T20:12:36Z
dc.date.issued2007
dc.description.abstractEight rice lines viz. CNA 8983, IAC-1732, IAC-1733, IAC-1748, IAC-1736, IAC-201, Volano and Arborea were evaluated in greenhouse for resistance against the leaf blast disease caused by Magnoparthe gracea. Lines CNA 8983, IAC 1732, IAC 1733 and IAC 1748 showed satisfactory resistance against the blast fungus while IAC 1736 and IAC 201 were intermediate and Volano and Arborea susceptible. All lines did not have lipoxygenase activity increased by methyljasmonic acid, however enzyme activity showed a positive relationship with resistance. Oito linhagens de arroz (CNA 8983, IAC-1732, IAC-1733, IAC-1748, IAC-1736, IAC-201, Volano e Arborea) foram avaliadas em casa de vegetação para a resistência contra a brusone causada por Magnoparthe gracea. As linhagens CNA 8983, IAC 1732, IAC 1733 e IAC 1748 foram satisfatoriamente resistentes contra o fungo; IAC 1736 e IAC 201 foram intermediárias e Volano e Arbórea, suscetíveis. Em todas as linhagens não ocorreu atividade de lipoxigenase aumentada pela exposição ao ácido metiljasmônico, no entanto, a atividade enzimática mostrou correlação positiva com a resistência.
dc.identifier.issn0006-8705
dc.identifier.otherS0006-87052007000100004-scl
dc.identifier.urihttps://repositorio-aptaregional.agricultura.sp.gov.br/handle/123456789/1088
dc.relation.ispartofBragantia
dc.subjectbrusone, resistência
dc.subjectMagnoparthe grisea
dc.subjectácido metil-jasmônico
dc.subjectOryza sativa
dc.subjectblast resistance
dc.subjectMagnoparthe gracea
dc.subjectmethyljasmonic acid
dc.subjectOryza sativa
dc.titleLipoxygenase activity in Brazilian rice cultivars with variable resistance to leaf blast disease
dc.typeArtigos
oaire.citation.endPage30
oaire.citation.issue1
oaire.citation.startPage27
oaire.citation.volume66

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