Expression of barley BAX Inhibitor-1 in carrots confers resistance to Botrytis cinerea.
SUMMARY BAX Inhibitor-1 (BI-1) is a protein that controls heterologous BAX-induced cell death, the hypersensitive reaction and abiotic stress-induced cell death in plants. When over-expressed in epidermal cells of barley, barley BI-1 induces susceptibility to the biotrophic fungal pathogen Blumeria graminis. When we expressed barley BI-1 in carrot susceptible to the necrotrophic fungus Botrytis cinerea, we obtained BI-1-mediated resistance to fungus-induced leaf cell death and less fungal spreading on the leaves. Barley BI-1 also mediated resistance to Chalara elegans in carrot roots. The results support the idea that cell death inhibition is an applicable approach to control cell-death-inducing pathogens in crop plants.
Imani
Jafargholi
J
Research Centre for BioSystems, Land Use and Nutrition, Institute of Phytopathology and Applied Zoology, Justus-Liebig-Universität Giessen, Heinrich-Buff Ring 26-32, D-35392 Giessen, Germany.
Baltruschat
Helmut
H
Stein
Elke
E
Jia
Gengxiang
G
Vogelsberg
Jörg
J
Kogel
Karl-Heinz
KH
Hückelhoven
Ralph
R