Expression of putative expansin genes in phylloxera (<i>Daktulosphaira vitifoliae</i> Fitch) induced root galls of <i>Vitis</i> spp.

ABSTRACT: Grape phylloxera (Daktulosphaira vitifoliae Fitch) is a serious global pest in viticulture. The insects are sedentary feeders and require a gall to feed and reproduce. The insects induce their feeding site within the meristematic zone of the root tip, where they stay attached, feeding both intra- and intercellularly, and causing damage by reducing plant vigour. Several changes in cell structure and composition, including increased cell division and tissue swelling close to the feeding site, cause an organoid gall called a nodosity to develop. Because alpha expansin genes are involved in cell enlargement and cell wall loosening in many plant tissues it may be anticipated that they are also involved in nodosity formation. To identify expansin genes in Vitis vinifera cv. Pino

SUBMITTER: Lawo NC 

PROVIDER: S-EPMC4461154 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature