کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2836732 | 1570872 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Cacao leaf procyanidins increase locally and systemically in response to infection by Moniliophthora perniciosa basidiospores Cacao leaf procyanidins increase locally and systemically in response to infection by Moniliophthora perniciosa basidiospores](/preview/png/2836732.png)
Flavan-3-ol monomers and oligomers from dimers to decamers were quantitatively determined by HPLC-FLD in leaves of four Theobroma cacao varieties. Cacao flush leaves had higher procyanidin content than mature leaves. Moniliophthora perniciosa basidiospore infection results in an increase in cacao leaf procyanidins in the inoculated leaves, as well as in the uninoculated, adjacent, older leaves on an actively growing branch, resulting in both a local and systemic increase in procyanidin content in response to infection. Procyanidin oligomers increased significantly in leaves of the less susceptible genotype Scavina 6 upon infection, and total procyanidin levels were higher than in Cacao Comum a more disease susceptible genotype. Selection of genotypes with high constitutive and/or inducible content of procyanidins in young flush leaves may be a strategy to develop witches’ broom disease resistant cultivars.
Journal: Physiological and Molecular Plant Pathology - Volume 70, Issues 4–6, April–June 2007, Pages 174–179