Glycosyltransferase-like protein ABI8/ELD1/KOB1 promotes Arabidopsis hypocotyl elongation through regulating cellulose biosynthesis
文献类型：期刊论文
| 作者 | Wang, Xin1; Jing, Yanjun; Zhang, Baocai3,4; Zhou, Yihua3,4; Lin, Rongcheng
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| 刊名 | PLANT CELL AND ENVIRONMENT
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| 出版日期 | 2015 |
| 卷号 | 38期号:3页码:411-422 |
| 关键词 | cellulose synthesis light photomorphogenesis |
| ISSN号 | 0140-7791 |
| DOI | 10.1111/pce.12395 |
| 文献子类 | Article |
| 英文摘要 | Seedling de-etiolation (photomorphogenesis) is an important light-regulated developmental process in plants. Here, we showed that disruption of the gene encoding a glycosyltransferase-like protein, ABA INSENSITIVE 8 (ABI8)/ELONGATION EFFECTIVE 1 (ELD1)/KOBITO1 (KOB1), caused short-hypocotyl elongation under all light conditions examined and even in darkness. We found that the ABI8 transcript level was down-regulated by light in a phytochrome A-dependent manner. Furthermore, light destabilized ABI8 protein via the 26S proteasome degradation pathway. We showed that ABI8 promoted the expression of genes involved in cell elongation and cellulose synthesis. Consistently, the cellulose content was reduced in the abi8 mutants and application of 2, 6-dichlorobenzonitrile (an inhibitor of cellulose biosynthesis) mimicked the abi8 mutant phenotype. Moreover, we found that phytochrome and cryptochrome photoreceptors negatively, whereas CONSTITUTIVE PHOTOMORPHOGENIC 1 positively, regulated cellulose synthesis. We also showed that ELONGATED HYPOCOTYL 5 directly bound to the promoters of ABI8 and several cellulose synthesis genes and repressed their expression in light conditions. Taken together, our study reveals that ABI8 functions as a negative factor in light inhibition of hypocotyl elongation through modulating cellulose biosynthesis. This study elucidates a molecular mechanism on how light regulates cellulose synthesis and hypocotyl elongation during plant photomorphogenic growth. The authors demonstrate that ABI8 is a negative regulator of light-inhibition of hypocotyl growth and that HY5 transcription factor directly represses ABI8 expression. ABI8 are down-regulated by light both at the transcription and post-translational levels. |
| 学科主题 | Plant Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-3040 |
| WOS关键词 | TRANSCRIPTION FACTOR HY5 ; ABSCISIC-ACID ; PHYTOCHROME-B ; CELL ELONGATION ; INTEGRATE LIGHT ; GENE ; PHOTOMORPHOGENESIS ; ENCODES ; COP1 ; EXPRESSION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000349994600004 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China [31170221, 31325002, 31125019] ; Ministry of Agriculture of China [2011ZX08009-003] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25800]  |
| 专题 | 中科院光生物学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Inst Genet & Dev Biol, Natl Plant Gene Res Ctr, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xin,Jing, Yanjun,Zhang, Baocai,et al. Glycosyltransferase-like protein ABI8/ELD1/KOB1 promotes Arabidopsis hypocotyl elongation through regulating cellulose biosynthesis[J]. PLANT CELL AND ENVIRONMENT,2015,38(3):411-422. |
| APA | Wang, Xin,Jing, Yanjun,Zhang, Baocai,Zhou, Yihua,&Lin, Rongcheng.(2015).Glycosyltransferase-like protein ABI8/ELD1/KOB1 promotes Arabidopsis hypocotyl elongation through regulating cellulose biosynthesis.PLANT CELL AND ENVIRONMENT,38(3),411-422. |
| MLA | Wang, Xin,et al."Glycosyltransferase-like protein ABI8/ELD1/KOB1 promotes Arabidopsis hypocotyl elongation through regulating cellulose biosynthesis".PLANT CELL AND ENVIRONMENT 38.3(2015):411-422. |
入库方式： OAI收割
来源：植物研究所
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