Resistance to northern leaf blight in maize<i>(Zea mays)</i>conditioned by the<i>HtN</i>gene and the association with isoperoxidases

Bar-Zur, A.; Tadmor, Yaakov; Juvik, John A.; Shimoni, Moshe; Reuveni, R.

doi:10.1080/07060669809500442

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Some peroxidase isoforms have also been associated with disease resistance. In maize, resistance to northern leaf blight was associated to an specific isoform (Bar-Zur et al 1998) and resistance to Exesrohilium turcicum was correlated to peroxidase banding patterns (Shimoni et al 1996). Collectively these results indicate that increased peroxidase activity and expression of specific isoenzymes may be a constitutive mechanism used by plants against severe, pathogen infection.…”

Section: Resultsmentioning

confidence: 81%

Peroxidase Activity in Maize Inbred Lines Resistant or Susceptible to Maize Dwarf Mosaic Virus

Souza¹,

Oliveira²,

Peres³

et al. 2003

Revista Brasileira de Milho e Sorgo

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Peroxidase (EC 1.11.1.7) activity levels were analyzed in maize seedling inbred lines contrasting with their resistance to maize dwarf mosaic virus (MDMV). Groups of noninoculated resistant and susceptible inbred lines showed different levels of guaiacol peroxidase activity at the seedling stage, with 78 % of susceptible inbred lines presenting enzyme activity values below 91.46 A 470 min -1 g FW -1 . However, the zymogram patterns of peroxidase did not allow the differentiation of non-inoculated resistant or susceptible inbred lines. The virus complex induced a general enhancement of enzyme activity, without qualitative changes in the isoenzymes, when inoculated into resistant or susceptible inbred lines. However, a quantitative change, with 19% OD average increase in a moderately anionic isoform was observed in some resistant inbred lines in response to virus inoculation. Our results could suggest that peroxidase activity prior to infection, and the increase in activity of an specific anionic isoform in some resistant inbred lines, due to virus inoculation, could be related to a defense mechanism against MDMV. ATIVIDADE DA PEROXIDASE EM LINHAGENS DE MILHO RESISTANTES OU SUSCEPTÍVEIS AO MOSAICO COMUM DO MILHORESUMO -Níveis de atividade da peroxidase (EC 1.11.1.7) foram analisados em plântulas de linhagens de milho contrastantes quanto à resistência ao mosaico comum do milho (MDMV). Grupos de linhagens não-inoculadas, resistentes e susceptíveis apresentaram diferentes níveis de atividade da guaiacol peroxidase no estádio de plântulas, com 78 % das linhagens susceptíveis apresentando valores de atividade da enzima abaixo de 91.46 A 470 min -1 g FW -1 . Entretanto, os padrões dos zimogramas da peroxidase não permitiram a diferenciação de linhagens resistentes ou susceptíveis. O complexo viral, quando inoculado nas linhagens resistentes ou susceptíveis, induziu um aumento geral na atividade da enzima, sem alterações qualitativas nas isoformas. Entretanto, uma alteração quantitativa, com aumento médio de 19 % OD em uma isoforma moderadamente aniônica foi observada em algumas linhagens resistentes, em resposta à inoculação com vírus. Os resultados parecem indicar que, em algumas linhagens resistentes, a atividade da peroxidase antes da infecção e o aumento, devido à inoculação com vírus, na atividade de uma isoforma aniônica específica, podem estar relacionados ao mecanismo de defesa contra MDMV. Palavras-chave:Zea mays L., potyvirus, isoformas.

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Section: Resultsmentioning

confidence: 81%

Peroxidase Activity in Maize Inbred Lines Resistant or Susceptible to Maize Dwarf Mosaic Virus

Souza¹,

Oliveira²,

Peres³

et al. 2003

Revista Brasileira de Milho e Sorgo

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“…W64A was described to contribute early flowering, intermediate plant and ear height in relation to maturity, exceptional root strength, and good stock strength (Troyer, 2004). However, it has been noted for its susceptibility to eyespot (Reifschneider and Arny, 1980), Fusarium verticillioides (Lanubile et al, 2012), High plains virus (Marçon et al, 1997) and northern corn leaf blight (caused by Exserohilum turcicum ) (Bar‐Zur et al, 1998). W64A ears are thick with 16 kernel rows and red cob color.…”

Section: Methodsmentioning

confidence: 99%

Registration of the OhW (Oh43×W64A) Maize Recombinant Inbred Mapping Population

Johnson¹,

Muttoni²,

León

et al. 2015

J of Plant Registrations

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The Oh43×W64A (OhW) maize (Zea mays L.) mapping population (MP‐3, NSL 511549 MAP) consists of 255 recombinant inbred lines (RILs). This mapping population was constructed from a cross between inbred lines Oh43 (Ames 19288) and W64A (PI 587152). Our primary goal was to develop a mapping population segregating for a large number of important agronomic traits using a cross of lines that formed a heterotic hybrid used in the northern Corn Belt. Genetic markers were scored using genotyping‐by‐sequencing technology, and a high‐density genetic map was constructed using the single nucleotide polymorphism data. A wide range of phenotypic diversity among individuals, and transgressive segregation, was observed for all traits measured. The registration of this RIL mapping population provides geneticists and breeders with a highly diverse set of lines in combination with a dense genetic map that can be utilized to identify quantitative trait loci at high mapping resolution.

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Reaction of Chickpea Varieties to Macrophomina Phaseolina and Their Effect on Peroxidase Activity

Preeti

Kumari

Sharma

2014

Microbial Diversity and Biotechnology in Food Security

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Resistance to northern leaf blight in maize(Zea mays)conditioned by theHtNgene and the association with isoperoxidases

Cited by 3 publications

References 16 publications

Peroxidase Activity in Maize Inbred Lines Resistant or Susceptible to Maize Dwarf Mosaic Virus

Peroxidase Activity in Maize Inbred Lines Resistant or Susceptible to Maize Dwarf Mosaic Virus

Registration of the OhW (Oh43×W64A) Maize Recombinant Inbred Mapping Population

Reaction of Chickpea Varieties to Macrophomina Phaseolina and Their Effect on Peroxidase Activity

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