期刊
PLANT JOURNAL
卷 72, 期 6, 页码 947-959出版社
WILEY-BLACKWELL
DOI: 10.1111/tpj.12005
关键词
evolution; Physcomitrella patens; ethylene; submergence; water relations; phytohormones
资金
- King Abdullah University of Science and Technology (KAUST) [KUK-I1-002-03]
- British Council Partnership Programme in Science by the British Council and Platform Beta Techniek
- Biotechnology and Biological Sciences Research Council [BB/F020759/1] Funding Source: researchfish
- BBSRC [BB/F020759/1] Funding Source: UKRI
Colonization of the land by multicellular green plants was a fundamental step in the evolution of life on earth. Land plants evolved from fresh-water aquatic algae, and the transition to a terrestrial environment required the acquisition of developmental plasticity appropriate to the conditions of water availability, ranging from drought to flood. Here we show that extant bryophytes exhibit submergence-induced developmental plasticity, suggesting that submergence responses evolved relatively early in the evolution of land plants. We also show that a major component of the bryophyte submergence response is controlled by the phytohormone ethylene, using a perception mechanism that has subsequently been conserved throughout the evolution of land plants. Thus a plant environmental response mechanism with major ecological and agricultural importance probably had its origins in the very earliest stages of the colonization of the land.
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