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科技导报 | 专题论文 2018, 36(7): 20-25
植物分枝的奥秘——植物分枝激素独脚金内酯的感知机制
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姚瑞枫1, 娄智勇2, 谢道昕1
作者信息
    1. 清华大学生命科学学院, 北京 100084;
    2. 清华大学医学院, 北京 100084

通讯作者:

谢道昕(通信作者),教授,研究方向为植物激素作用机理,电子信箱:daoxinlab@tsinghua.edu.cn
The perception mechanism of the plant branching hormone strigolactone
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出版时间: 2018-04-13 doi: 10.3981/j.issn.1000-7857.2018.07.003
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植物激素调控植物的繁衍生息,与人类生存环境和农业生产密切相关;阐明植物激素被其受体感知的机制,对于揭示植物生命活动的本质具有重要意义。植物的分枝主要受到独脚金内酯等重要植物激素的精准调控。简要综述了植物激素独脚金内酯的作用机理,特别是该激素被其受体感知的机制方面近年来取得的重要进展:系统阐明了单子叶模式植物/作物水稻、双子叶模式植物拟南芥以及寄生杂草独脚金中独脚金内酯被其受体感知的机制,为作物株型改良和消除寄生杂草提供了重要理论指导;开创性地揭示了该新型“受体-激素”感知机制不同于生物学领域过去百年建立的配体,可逆地结合受体、并循环触发信号传导链的“配体-受体”识别理论,为创立“受体-配体”不可逆识别的新理论奠定了重要基础。
独脚金内酯  /  植物分枝  /  分枝激素  /  受体  /  感知机制
Plant hormones regulate every step of the plant life cycle. Elucidating the perception mechanism of plant hormones by their receptors is crucial for understanding plant growth and development, protecting plant and the associated ecosystem, as well as for enhancing food security worldwide. Plant branching is mainly regulated by the branching hormone strigolactone and related phytohormones. The study on the molecular basis of strigolactone action, especially the perception mechanism, has made important breakthrough in recent years:The strigolactone perception mechanisms in the monocot plant rice, the dicot plant Arabidopsis and the parasitic weed Striga have been systematically elucidated, revolutionarily revealing a non-canonical hormone perception mechanism which is different from the reversible "ligand-receptor" perception mode that has been gradually established during the past century. These findings will provide theoretical guidances for breeding crops with ideal architecture as well as for combating the root parasitic weed. In this short review, we will give a brief introduction to the recent advances in strigolactone perception.
strigolactone  /  plant branching  /  branching hormone  /  receptor  /  perception
姚瑞枫, 娄智勇, 谢道昕. 植物分枝的奥秘——植物分枝激素独脚金内酯的感知机制. 科技导报, 2018 , 36 (7) : 20 -25 . DOI: 10.3981/j.issn.1000-7857.2018.07.003
YAO Ruifeng, LOU Zhiyong, XIE Daoxin. The perception mechanism of the plant branching hormone strigolactone[J]. Science & Technology Review, 2018 , 36 (7) : 20 -25 . DOI: 10.3981/j.issn.1000-7857.2018.07.003
2018年第36卷第7期
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doi: 10.3981/j.issn.1000-7857.2018.07.003
  • 接收时间:2017-10-08
  • 首发时间:2018-04-27
  • 出版时间:2018-04-13
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  • 收稿日期:2017-10-08
  • 修回日期:2018-03-11
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谢道昕(通信作者),教授,研究方向为植物激素作用机理,电子信箱:daoxinlab@tsinghua.edu.cn
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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