Erwinia carotovora subsp.atroseptica infection promotes verticillium wilt development in potato in Israel |
| |
| Authors: | Leah Lahkim Tsror A Nachmias L Livescu M C M Perombelon Z Barak |
| |
| Institution: | (1) Gilat Experiment Station, Agricultural Research Organization, Mobile Post Negev, 85280, Israel;(2) Biology Department, Ben-Gurion University, Beer-Sheva, Israel;(3) Scottish Crop Research Institute, Invergowrie, DD2 5DA Dundee, Scotland |
| |
| Abstract: | Summary The interaction betweenErwinia carotovora subsp.atroseptica (Eca) andVerticillium dahliae and its effect on symptom development in potato cultivars showing different degrees of resistance to them was examined over
two seasons in irrigated fields in a hot, dry climate. Four cultivars were used: Cara, highly resistant to blackleg and tolerant
to Verticillium wilt; Pentland Crown also resistant to blackleg but susceptible to Verticillium wilt; Désirée, moderately
susceptible to blackleg but tolerant to Verticillium wilt; and Maris Bard, susceptible to both diseases.
Seed tubers were inoculated with Eca immediately after harvest in Scotland, to simulate natural infection, and then planted
in Israel in soil naturally infested byV. dahliae. In Verticillium tolerant cultivars, Eca infection increased the rate of colonization byV. dahliae and significantly enhanced symptom development, as assessed by suppression of plant height and wilt symptoms.
This report is a portion of the Ph.D. thesis of the senior author in Ben-Gurion University of the Negev. |
| |
| Keywords: | interaction stem colonization Verticillium dahliae Solanum tuberosum L |
| 本文献已被 SpringerLink 等数据库收录！ |
|
