Effect of menadione sodium bisulfite, an inducer of plant defenses, on the dynamic of banana phytoalexin accumulation during pathogenesis.
Using an authentic sample of 2-hydroxy-9-(p-hydroxyphenyl)-phenalen-1-one, a banana phenalenone-type phytoalexin, we studied its dynamic of accumulation during pathogenesis of banana plants (Musa acuminata (AAA), Grand Nain) inoculated with Fusarium oxysporum f.sp. cubense (FOC), Race 4, the causal agent of Panama disease. The results obtained demonstrate that banana plants treated prior inoculation with menadione sodium bisulfite (MSB), an inducer of plant defenses, are capable of changing the dynamic of accumulation (higher amount and speed of biosynthesis) of this banana phytoalexin, biosynthesized by the banana plant during pathogenesis.
Borges
Andres A
AA
Instituto de Productos Naturales y Agrobiología--CSIC. Avda Astrofísico Francisco Sánchez 3, P.O. Box 195, 38206 La Laguna, Tenerife, Canary Islands, Spain. aborges@ipna.csic.es
Borges-Perez
Andres
A
Fernandez-Falcon
Marino
M
D028521:Musa / Q000187:drug effects* / Q000378:metabolism*; D010935:Plant Diseases; D010936:Plant Extracts / Q000378:metabolism*; D012717:Sesquiterpenes; D013729:Terpenes; D024483:Vitamin K 3 / Q000494:pharmacology*; D000094162:Phytoalexins
D010936:Plant Extracts; D012717:Sesquiterpenes; D013729:Terpenes; D024483:Vitamin K 3; D000094162:Phytoalexins