NDLI: A putative leucine-rich repeat receptor kinase, OsBRR1, is involved in rice blast resistance

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Planta : Volume 230, Issue 1, June 2009

A putative leucine-rich repeat receptor kinase, OsBRR1, is involved in rice blast resistance

Content Provider	Springer Nature Link
Author	Peng, Hao Zhang, Qian Li, Yadong Lei, Cailin Zhai, Ying Sun, Xuehui Sun, Daye Sun, Ying Lu, Tiegang
Copyright Year	2009
Abstract	Leucine-rich repeat receptor-like kinases (LRR-RLKs) comprise the largest subfamily of transmembrane receptor-like kinases in plants, and they regulate a wide variety of developmental and defense-related processes. In this study, RNA interference (RNAi) strategy was used to specifically knockdown 59 individual rice genes encoding putative LRR-RLKs, and a novel rice blast resistance-related gene (designated as OsBRR1) was identified by screening T0 RNAi population using a weakly virulent isolate of Magnaporthe oryzae, Ken 54-04. Wild-type plants (Oryza sativa L. cv. ‘Nipponbare’) showed intermediate resistance to Ken 54-04, while OsBRR1 suppression plants were susceptible to Ken 54-04. Furthermore, OsBRR1-overexpressing plants exhibited enhanced resistance to some virulent isolates (97-27-2, 99-31-1 and zhong 10-8-14). OsBRR1 expression was low in leaves and undetectable in roots under normal growth conditions, while its transcript was significantly induced in leaves infected with the blast fungus (Ken 54-04) and was moderately affected by ABA, JA and SA treatment. Overexpression or RNAi suppression of OsBRR1 did not cause visible developmental changes in rice plants. These results indicate that OsBRR1 is involved in rice resistance responses to blast fungus and mediates resistance to rice blast.
Starting Page	377
Ending Page	385
Page Count	9
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	230
Issue Number	2
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-05-26
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Leucine-rich repeat receptor-like protein kinase Rice blast resistance Magnaporthe oryzae RNA interference Overexpression Ecology Forestry Agriculture Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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