|
KMID : 0381120150370060545
|
|
Genes and Genomics
2015 Volume.37 No. 6 p.545 ~ p.550
|
|
|
Calcium potentiates post-invasive resistance to Golovinomyces orontii fungus in Arabidopsis
|
|
Lee Ga-Young
Kwon Chi-An
Kim Soo-Hong
Kim Mi-Kyung
Lim Jun
Heo Jae-Bok
Yun Hye-Sup
|
|
|
Abstract
|
|
|
|
Ca2+ as in other cellular signaling pathways plays a key signal-mediating function in plant immune responses. However, a negative immune activity of some Ca2+-binding calmodulins implicates a rather confusing function of Ca2+ despite its importance in plant immunity. We therefore studied here an effect of Ca2+ on Arabidopsis disease resistance to an adapted Golovinomyces orontii powdery mildew fungus. Pre-treatment with Ca2+ enhanced plant defense against G. orontii especially during late pathogenesis. A similar inhibition of G. orontii growth by Ca2+ was also observed in the salicylic acid-depleted nahG plants. Golovinomyces orontii-dependent induction of defense genes by Ca2+ suggests that it acts as a defense-priming factor in plant post-invasive resistance to adapted powdery mildew fungal pathogens.
|
|
|
KEYWORD
|
|
|
Arabidopsis, Calcium, G. orontii, Post-invasive resistance, Salicylic acid
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|