Rolling-leaf14 is a 2OG-Fe (II) oxygenase family protein that modulates rice leaf rolling by affecting secondary cell wall formation in leaves

Plant Biotechnology Journal
Likui FangGuanghua He

Abstract

As an important agronomic trait, leaf rolling in rice (Oryza sativa L.) has attracted much attention from plant biologists and breeders. Moderate leaf rolling increases the amount of photosynthesis in cultivars and hence raises grain yield. Here, we describe the map-based cloning of the gene RL14, which was found to encode a 2OG-Fe (II) oxygenase of unknown function. rl14 mutant plants had incurved leaves because of the shrinkage of bulliform cells on the adaxial side. In addition, rl14 mutant plants displayed smaller stomatal complexes and decreased transpiration rates, as compared with the wild type. Defective development could be rescued functionally by the expression of wild-type RL14. RL14 was transcribed in sclerenchymatous cells in leaves that remained wrapped inside the sheath. In mature leaves, RL14 accumulated mainly in the mesophyll cells that surround the vasculature. Expression of genes related to secondary cell wall formation was affected in rl14-1 mutants, and cellulose and lignin content were altered in rl14-1 leaves. These results reveal that the RL14 gene affects water transport in leaves by affecting the composition of the secondary cell wall. This change in water transport results in water deficiency, which ...Continue Reading

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Citations

Feb 14, 2016·Journal of Experimental Botany·Xiaofei LiuZhukuan Cheng
Oct 21, 2016·Journal of Integrative Plant Biology·Shuangshuang ZhaoLubin Tan
Nov 9, 2017·Frontiers in Plant Science·Yinhua MaGuangcun He
Sep 30, 2017·The Plant Journal : for Cell and Molecular Biology·Wen-Qiang LiKun-Ming Chen
Nov 9, 2019·The Plant Journal : for Cell and Molecular Biology·Naveen MalikAkhilesh K Tyagi
Jul 25, 2018·Proceedings of the National Academy of Sciences of the United States of America·Ju HuangDacheng Tian
Aug 11, 2018·BMC Genetics·Beata MyśkówStefan Stojałowski
Aug 11, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Lulu GaoYirong Zhang
Jul 22, 2019·BMC Plant Biology·Mao YangRongzhan Guan
Feb 20, 2019·International Journal of Molecular Sciences·Xue FuGuangheng Zhang
Nov 9, 2018·Frontiers in Plant Science·Peizhou XuXianjun Wu
Jan 4, 2021·Plant Cell Reports·Showkat Ahmad Ganie, Golam Jalal Ahammed
Aug 28, 2021·Plant Biotechnology Journal·Yang XuJie Yang

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