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Expression of hydroxymethylglutaryl-coa reductase 2 (HMG2) gene in chilli (Capsicum annuum L.) CM334 infected by Nacobbus aberrans and Phytophthora capsici Agrociencia
Villar-Luna,Edgar; Rojas-Martínez,Reyna I.; Reyes-Trejo,Benito; Rocha-Sosa,Mario; Zavaleta-Mejía,Emma.
Plants of chilli Capsicum annuum L. CM334 show a high level of resistance to Phytophthora capsici, but are susceptible to Nacobbus aberrans; such resistance has been associated with capsidiol accumulation, a sesquiterpene phytoalexin. In the present study the expression of hydroxymethylglutaryl-CoA reductase 2 gene (HMG2, associated with sesquiterpene phytoalexins biosynthesis) in CM334 chilli roots inoculated with N. aberrans and in combination with P. capsici, was determined by qRT-PCR. The levels of HMG2 transcripts were significantly reduced (p≤0.05) from -1.57 to -1.28-fold in the interaction CM334/N. aberrans; whereas in roots inoculated only with the oomycete, the accumulation of transcripts occurred earlier and at higher levels (1.52 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum annuum; Capsidiol; Real-time PCR; Root-knot nematodes.
Ano: 2015 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000100005
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