1篇
您的检索式：作者名="Manuel T.Lerdau"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Overexpression of micro RNA_(40)8 enhances photosynthesis, growth, and seed yield in diverse plants显示文摘The ability of a plant to produce grain, fruit, or forage depends ultimately on photosynthesis. There have been few attempts, however, to study micro RNAs, which are a class of endogenous small RNAs post-transcriptionally programming gene expression, in relation to photosynthetic traits. We focused on miR_(40)8, one of the most conserved plant miRNAs, and overexpressed it in parallel in Arabidopsis, tobacco, and rice. The transgenic plants all exhibited increased copper content in the chloroplast, elevated abundance of plastocyanin,and an induction of photosynthetic genes. By means of gas exchange and optical spectroscopy analyses, we showed that higher expression of miR_(40)8 leads to enhanced photosynthesis through improving efficiency of irradiation utilization and the capacity for carbon dioxide fixation. Consequently, miR_(40)8 hyper-accumulating plants exhibited higher rate of vegetative growth. An enlargement of seed size was also observed in all three species overproducing miR_(40)8. Moreover, we conducted a 2-year-two-location field trial and observed miR_(40)8 overexpression in rice significantly increased yield, which was primarily attributed to an elevation in grain weight. Taken together, these results demonstrate that miR_(40)8 is a positive regulator of photosynthesis and that its genetic engineering is a promising route for enhancing photosynthetic performance and yield in diverse plants. | Jiawei Pan Dahui Huang Zhonglong Guo Zheng Kuang He Zhang Xinyu Xie Zengfeng Ma Shaopei Gao Manuel T.Lerdau Chengcai Chu Lei Li | 2018 | Journal of Integrative Plant Biology2018，60，4： | 8 |
您所在的机构暂未开通此部分的功能，请联系管理员