编号 040020501
推送时间 20190923
研究领域 森林培育
年份 2019
类型 期刊
语种 英语
标题 Photosynthesis Optimized across Land Plant Phylogeny
来源期刊 Trends in Plant Science
期 第205期
发表时间 20190727
关键词 mesophyll conductance; stomatal conductance; Rubisco; photosynthetical limitations; bryophy; tetracheophyte;
摘要 Until recently, few data were available on photosynthesis and its underlying mechanistically limiting factors in plants, other than crops and model species. Currently, a new large pool of data from extant representatives of basal terrestrial plant groups is emerging, allowing exploration of how photosynthetic capacity (Amax) increases from minimum values in bryophytes to maximum in tracheophytes, which is associated to an optimization of the balance between its limiting factors. From predominant mesophyll conductance limitation (lm) in bryophytes and lycophytes (fern allies) to stomatal conductance (ls) and lm colimitation in pteridophytes (ferns) and gymnosperms, a balanced colimitation by the three limitations is finally reached in angiosperms. We discuss the implications of this new knowledge for future biotechnological attempts to improve crop photosynthesis.
服务人员 孙小满
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