Overexpression of Bax inhibitor suppresses the fungal elicitor‐induced cell death in rice ( Oryza sativa L.) cells

Overexpression of Bax inhibitor suppresses the fungal elicitor‐induced cell death in rice (... Summary Treatment of suspension‐cultured cells of rice (Oryza sativa L.) with cell wall extract of rice blast fungus (Magnaporthe grisea) elicits a rapid generation of H2O2, alkalinization of culture medium, and eventual cell death. To elucidate genes involved in these processes, we exploited SAGE (Serial Analysis of Gene Expression) technique for the molecular analysis of cell death in suspension‐cultured cells treated with the elicitor. Among the downregulated genes in the elicitor‐treated cells, a BI‐1 gene coding for Bax inhibitor was identified. Transgenic rice cells overexpressing Arabidopsis BI‐1 gene showed sustainable cell survival when challenged with M. grisea elicitor. Thus, the plant Bax inhibitor plays a functional role in regulating cell death in the rice cell culture system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Plant Journal Wiley

Overexpression of Bax inhibitor suppresses the fungal elicitor‐induced cell death in rice ( Oryza sativa L.) cells

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Publisher
Wiley
Copyright
Copyright © 2003 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0960-7412
eISSN
1365-313X
D.O.I.
10.1046/j.1365-313X.2003.01639.x
Publisher site
See Article on Publisher Site

Abstract

Summary Treatment of suspension‐cultured cells of rice (Oryza sativa L.) with cell wall extract of rice blast fungus (Magnaporthe grisea) elicits a rapid generation of H2O2, alkalinization of culture medium, and eventual cell death. To elucidate genes involved in these processes, we exploited SAGE (Serial Analysis of Gene Expression) technique for the molecular analysis of cell death in suspension‐cultured cells treated with the elicitor. Among the downregulated genes in the elicitor‐treated cells, a BI‐1 gene coding for Bax inhibitor was identified. Transgenic rice cells overexpressing Arabidopsis BI‐1 gene showed sustainable cell survival when challenged with M. grisea elicitor. Thus, the plant Bax inhibitor plays a functional role in regulating cell death in the rice cell culture system.

Journal

The Plant JournalWiley

Published: Feb 1, 2003

References

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