Crown and root rots of table grapes caused by <i>Phytophthora</i> spp. in Chile

Authors

  • B. A. Latorre
  • W. F. Wilcox
  • M. P. Bañados

DOI:

https://doi.org/10.5073/vitis.1997.36.195-197

Keywords:

grapevine, Phytophthora, Vitis vinifera

Abstract

Phytophthora crown and root rot of grapevine (Vitis vinifera L.) occurs frequently in Chile, where grapes are cultivated on their own roots. P. cinnamomi, P. cryptogea, and P. drechsleri were isolated from diseased root or crown tissue of the table grape cvs Flame Seedless, Italia, Red Globe, and Thompson Seedless with P. cryptogea being the most frequently isolated species. These pathogens were identified on the basis of standard morphological and cultural features and were compared by SDS-PAGE profiles of mycelial proteins. All isolates were pathogenic on 1-year-old cane segments and 1-year-old rooted grapevines of cvs Thompson Seedless and Red Globe. The latter cultivar was more susceptible than Thompson Seedless. P. cinnamomi and P. cryptogea have been associated with root rot of grapevines elsewhere, but this is the first report of P. drechsleri as a pathogen of grapevines and the first report of Phytophthora spp. affecting table grapes in Chile.

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Published

2015-08-06

Issue

Vol. 36 No. 4 (1997): Vitis

Section

Article

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