Calcium ion promotes successful penetration of powdery mildew fungi into barley cells |
| |
| Authors: | Issei Kobayashi Masako Yamada Yuhko Kobayashi |
| |
| Institution: | (1) Division of Plant Functional Genomics, Life Science Research Center, Mie University, 1577 Kurima-machiya-cho, Tsu Mie, 514-8507, Japan;(2) Bioscience and Biotechnology Center, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan |
| |
| Abstract: | To determine whether Ca2+ promotes powdery mildew penetration, Ca2+-treated barley coleoptiles were inoculated with conidia of pathogenic and nonpathogenic fungi. Penetration efficiency of
the pathogenic powdery mildew Blumeria graminis was enhanced by Ca2+ treatment, but that of the necrotrophic pathogen Helminthosporium sp. remained unaffected. Similarly, when actin-dependent penetration resistance is suppressed with cytochalasin A, Ca2+ treatment specifically enhanced penetration of the nonpathogenic powdery mildew Erysiphe pisi but not that of other nonpathogens. Calmodulin inhibitors suppressed the promotive effect of Ca2+ on B. graminis penetration. These results suggest that barley powdery mildew specifically requires Ca2+ and calmodulin for penetration. |
| |
| Keywords: | Calcium ion Penetration resistance Powdery mildew Barley |
| 本文献已被 SpringerLink 等数据库收录！ |
|
