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Biosci Biotechnol Biochem

Title:		Brassinosteroid-related transcription factor BIL1/BZR1 increases plant resistance to insect feeding
Author(s):		Miyaji T; Yamagami A; Kume N; Sakuta M; Osada H; Asami T; Arimoto Y; Nakano T;
Address:		"a Antibiotic Laboratory , RIKEN , Wako , Japan"
Journal Title:		Biosci Biotechnol Biochem
Year:		2014
Volume:		20140626
Issue:		6
Page Number:		960 - 968
DOI:		10.1080/09168451.2014.910093
ISSN/ISBN:		1347-6947 (Electronic) 0916-8451 (Linking)
Abstract:		"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"
Keywords:		Animals Arabidopsis/cytology/genetics/*physiology Arabidopsis Proteins/genetics/*metabolism Brassinosteroids/*metabolism DNA-Binding Proteins *Herbivory Lotus/cytology/genetics/*physiology Mutation Nuclear Proteins/genetics/*metabolism Phenotype Plant Lea;
Notes:		"MedlineMiyaji, Tomoko Yamagami, Ayumi Kume, Nao Sakuta, Masaaki Osada, Hiroyuki Asami, Tadao Arimoto, Yutaka Nakano, Takeshi eng Research Support, Non-U.S. Gov't England 2014/07/19 Biosci Biotechnol Biochem. 2014; 78(6):960-8. doi: 10.1080/09168451.2014.910093. Epub 2014 Jun 26"