Plant Cell Rep (2017) 36:1507–1518 DOI 10.1007/s00299-017-2171-7 ORIGINAL ARTICLE Adaptation of root growth to increased ambient temperature requires auxin and ethylene coordination in Arabidopsis 1 1,2 3 1 • • • • Qionghui Fei Shaodong Wei Zhaoyang Zhou Huanhuan Gao Xiaofeng Li Received: 21 March 2017 / Accepted: 21 June 2017 / Published online: 28 June 2017 Springer-Verlag GmbH Germany 2017 Abstract auxin biosynthesis was critical for maintaining PIN1, Key message A fresh look at the roles of auxin, ethylene, PIN2, and AUX1 expression at elevated temperatures. and polar auxin transport during the plant root growth Ethylene was also involved in this regulation through the response to warmer ambient temperature (AT). ETR1 pathway. Higher AT can promote CKRC1-dependent Abstract The ambient temperature (AT) affects plant auxin biosynthesis by enhancing ETR1-mediated ethylene growth and development. Plants can sense changes in the signaling. Our research suggested that the interaction AT, but how this change is transduced into a plant root between auxin and ethylene and that the interaction-me- growth response is still relatively unclear. Here, we found diated polar auxin transport play important roles during the that the Arabidopsis ckrc1-1 mutant is sensitive to higher plant root growth response to higher
Plant Cell Reports – Springer Journals
Published: Jun 28, 2017
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