Auxins increase expression of the brassinosteroid receptor and brassinosteroid-responsive genes inArabidopsis
نویسندگان
چکیده
منابع مشابه
Brassinosteroid-regulated gene expression.
Major brassinosteroid (BR) effects such as BR-induced growth are mediated through genomic pathways because RNA synthesis inhibitors and protein synthesis inhibitors interfere with these processes. A limited number of BR-regulated genes have been identified hitherto. The majority of genes (such as BRU1, CycD3, Lin6, OPR3, and TRIP-1) were identified by comparisons of BR-treated versus control-tr...
متن کاملCalcium/calmodulin inhibition of the Arabidopsis BRASSINOSTEROID-INSENSITIVE 1 receptor kinase provides a possible link between calcium and brassinosteroid signalling
The receptor kinase BRI1 (BRASSINOSTEROID-INSENSITIVE 1) is a key component in BR (brassinosteroid) perception and signal transduction, and has a broad impact on plant growth and development. In the present study, we demonstrate that Arabidopsis CaM (calmodulin) binds to the recombinant cytoplasmic domain of BRI1 in a Ca2+-dependent manner in vitro. In silico analysis predicted binding to Helix...
متن کاملBrassinosteroid levels increase drastically prior to morphogenesis of tracheary elements.
As the first step toward understanding the involvement of endogenous brassinosteroids (BRs) in cytodifferentiation, we analyzed biosynthetic activities of BRs in zinnia (Zinnia elegans L. cv Canary Bird) cells differentiating into tracheary elements. The results of feeding experiments suggested that both the early and late C6-oxidation pathways occur during tracheary element differentiation. Ga...
متن کاملCharacterization of two brassinosteroid C-6 oxidase genes in pea.
C-6 oxidation genes play a key role in the regulation of biologically active brassinosteroid (BR) levels in the plant. They control BR activation, which involves the C-6 oxidation of 6-deoxocastasterone (6-DeoxoCS) to castasterone (CS) and in some cases the further conversion of CS to brassinolide (BL). C-6 oxidation is controlled by the CYP85A family of cytochrome P450s, and to date, two CYP85...
متن کاملBrassinosteroid actions in plants
pollen tube growth, leaf bending and epinasty, root inhibition, induction of ethylene biosynthesis, protonRecent studies on dwarf mutants of Arabidopsis, pump activation, xylem differentiation, and regulation of tomato and pea have provided convincing evidence gene expression (Mandava, 1988; Clouse and Sasse, that brassinosteroids are a unique class of plant hor1998). In addition, useful agricu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Signaling & Behavior
سال: 2013
ISSN: 1559-2324
DOI: 10.4161/psb.23509