Journal of Plant Pathology (2007) 89, 41-45

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L. Zhu, X. Zhang, L. Tu, F. Zeng, Y. Nie and X. Guo (2007)
Isolation and characterization of two novel dirigent- like genes highly induced in cotton (Gossypium barbadense and G. hirsutum) after infection by Verticillium dahliae
Journal of Plant Pathology 89 (1), 41-45
Abstract: The Suppression Subtractive Hybridization (SSH) method was applied to construct a cDNA library from Gossypium barbadense cv. 'Pima 90'. Two dirigent-like (DIR) genes, Gbd 1 and Gbd 2, were isolated from the library. RT-PCR and Northern blot showed that they were induced after infection by Verticillium dahliae. The nucleotide sequences of Gbd 1 and Gbd 2 were 705 by and 801 by long with open reading frames of 531 by and 525 bp, respectively. Sharing high homologies to disease resistance-responsive family proteins of Arabidopsis thaliana, Gbd 1 and Gbd 2 shared a DIR-conserved domain and possessed a hydrophobic N-terminal signal peptide. Gbd 1 and Gbd 2 encode a class of cellsurface proteins with signals for receptor-mediated plant defense/immunity activities. The possible function of the genes and the mechanism of disease-resistance of 'Pima 90' are discussed.
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Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
molecular biology - genes

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Verticillium dahliae Cotton (Gossypium)