Modulating plant growth-metabolism coordination for sustainable agriculture.
Modulating plant growth-metabolism coordination for sustainable agriculture.
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调节植物生长代谢协调以实现可持续农业
DOI：
10.1038/s41586-018-0415-5
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发表时间：
2018-08
期刊：
影响因子：
64.8
通讯作者：
Fu X
中科院分区：
文献类型：
--
作者：
Li S;Tian Y;Wu K;Ye Y;Yu J;Zhang J;Liu Q;Hu M;Li H;Tong Y;Harberd NP;Fu X
通过提高绿色革命谷物品种的生产力来加强全球粮食安全，有可能增加无机氮肥造成的附带环境损害。因此，提高作物的氮利用效率至关重要;然而，它们需要深入了解整合生长、氮同化和碳固定的共同调节机制。在这里，我们表明，水稻生长调节因子4（GRF 4）转录因子和生长抑制剂DELLA的平衡的相对活动和物理相互作用赋予生长和碳氮代谢的稳态共调节。GRF 4促进并整合了氮同化、碳固定和生长，而DELLA抑制这些过程。因此，作为绿色革命品种特征的DELLA的积累不仅赋予产量提高的矮化，而且降低氮的利用效率。然而，绿色革命品种的氮利用效率和谷物产量通过使GRF 4-DELLA平衡向增加的GRF 4丰度倾斜而增加。因此，植物生长和代谢协同调节的调节使得未来可持续粮食安全和新的绿色革命的新育种策略成为可能。
Enhancing global food security by increasing the productivity of green revolution varieties of cereals risks increasing the collateral environmental damage produced by inorganic nitrogen fertilizers. Improvements in the efficiency of nitrogen use of crops are therefore essential; however, they require an in-depth understanding of the co-regulatory mechanisms that integrate growth, nitrogen assimilation and carbon fixation. Here we show that the balanced opposing activities and physical interactions of the rice GROWTH-REGULATING FACTOR 4 (GRF4) transcription factor and the growth inhibitor DELLA confer homeostatic co-regulation of growth and the metabolism of carbon and nitrogen. GRF4 promotes and integrates nitrogen assimilation, carbon fixation and growth, whereas DELLA inhibits these processes. As a consequence, the accumulation of DELLA that is characteristic of green revolution varieties confers not only yield-enhancing dwarfism, but also reduces the efficiency of nitrogen use. However, the nitrogen-use efficiency of green revolution varieties and grain yield are increased by tipping the GRF4-DELLA balance towards increased GRF4 abundance. Modulation of plant growth and metabolic co-regulation thus enables novel breeding strategies for future sustainable food security and a new green revolution.
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影响因子：
27.5
作者：
Ma, Xingliang;Zhang, Qunyu;Liu, Yao-Guang
通讯作者：
Liu, Yao-Guang
DOI：
10.1111/nph.14977
发表时间：
2018-04
期刊：
The New phytologist
影响因子：
--
作者：
Chen L;Zhao Y;Xu S;Zhang Z;Xu Y;Zhang J;Chong K
通讯作者：
Chong K
影响因子：
11.4
作者：
Hedden, P
通讯作者：
Hedden, P
OsmiR396 对 OsGRF4 的调节控制水稻的籽粒大小和产量
影响因子：
18
作者：
Duan, Penggen;Ni, Shen;Li, Yunhai
通讯作者：
Li, Yunhai
影响因子：
2
作者：
Gooding, M. J.;Addisu, M.;Jones, H. E.
通讯作者：
Jones, H. E.