Brassinosteroid-related transcription factor BIL1/BZR1 increases plant resistance to insect feeding

被引：32

作者：

Miyaji, Tomoko ^{[1
,2
]}

Yamagami, Ayumi ^{[1
]}

Kume, Nao ^{[3
]}

Sakuta, Masaaki ^{[3
]}

Osada, Hiroyuki ^{[1
,4
]}

Asami, Tadao ^{[2
,6
]}

Arimoto, Yutaka ^{[5
]}

Nakano, Takeshi ^{[1
,4
,6
]}

机构：

[1] RIKEN, Antibiot Lab, Wako, Saitama, Japan

[2] Univ Tokyo, Dept Appl Biol Chem, Grad Sch Agr & Life Sci, Tokyo, Japan

[3] Ochanomizu Univ, Dept Biol Sci, Tokyo 112, Japan

[4] RIKEN Ctr Sustainable Resource Sci, Wako, Saitama, Japan

[5] RIKEN, Arimoto Lab, Wako, Saitama, Japan

[6] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama, Japan

来源：

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 2014年 / 78卷 / 06期

基金：

日本科学技术振兴机构;

关键词：

brassinosteroid; signaling; BIL1/BZR1; onion thrips; jasmonate; SIGNAL-TRANSDUCTION; LOTUS-JAPONICUS; GENE-EXPRESSION; JASMONIC ACID; ARABIDOPSIS; RECEPTOR; PROTEIN; KINASE; GROWTH; BRI1;

D O I：

10.1080/09168451.2014.910093

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The plant steroid hormones brassinosteroids (BRs) play important roles in plant growth and responses to stresses. The up-regulation of pathogen resistance by BR signaling has been analyzed, but the relationship between BR and insect herbivores remains largely unclear. BIL1/BZR1 is a BR master transcription factor known to be involved in the regulation of plant development through work conducted on a gain of function mutation. Here, we analyzed the function of BIL1/BZR1 in response to insect feeding and demonstrated that resistance against thrip feeding was increased in the bil1-1D/bzr1-1D mutant compared to wild-type. We generated Lotus japonicus transgenic plants that over-express the Arabidopsis bil1/bzr1 mutant, Lj-bil1/bzr1-OX. The Lj-bil1/bzr1-OX plants showed increased resistance to thrip feeding. The expression levels of the jasmoninc acid (JA)-inducible VSP genes were increased in both Arabidopsis bil1-1D/bzr1-1D mutants and L. japonicus Lj-bil1/bzr1-OX plants. The resistance to thrip feeding caused by the BIL1/BZR1 gene may involve JA signaling.

引用

页码：960 / 968

页数：9

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