The rice F-box protein KISS ME DEADLY2 functions as a negative regulator of cytokinin signaling

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Title
The rice F-box protein KISS ME DEADLY2 functions as a negative regulator of cytokinin signaling
Author(s)
H.J.Kim; Kieber J.J.; Schaller G.E.
Publication Date
2013-12
Journal
PLANT SIGNALING AND BEHAVIOR, v.8, no.12, pp.e26434 -
Publisher
TAYLOR & FRANCIS INC
Abstract
Cytokinins are plant hormones that play critical roles in growth and development. We recently determined that the transcriptional response to cytokinin of Arabidopsis is modulated by the KISS ME DEADLY (KMD) family of F-box proteins. Here we demonstrate a conserved function for a member of the rice KMD family. Ectopic overexpression of OsKMD2 in Arabidopsis results in decreased cytokinin sensitivity based on a hypocotyl growth response assay, the decrease in sensitivity correlating with a decrease in the levels of the transcriptional regulator AtARR 12. Furthermore, OsKMD2 directly interacts with AtARR 12 based on yeast two-hybrid and co-immunoprecipitation assays. These results indicate that both monocots and dicots employ a similar KMD-dependent mechanism to regulate the transcriptional response to cytokinin. © 2013 Landes Bioscience
URI
https://pr.ibs.re.kr/handle/8788114/5023
ISSN
1559-2316
Appears in Collections:
Center for Plant Aging Research (식물 노화·수명 연구단) > Journal Papers (저널논문)
Files in This Item:
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