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Light affects salt stress-induced transcriptional memory of P5CS1 in Arabidopsis | |
Feng, Xuan Jun1; Li, Jing Rui1; Qi, Shi Lian; Lin, Qing Fang; Jin, Jing Bo2; Hua, Xue Jun | |
2016 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
卷号 | 113期号:51 |
摘要 | To cope with environmental stresses, plants often adopt a memory response upon primary stress exposure to facilitate a quicker and stronger reaction to recurring stresses. However, it remains unknown whether light is involved in the manifestation of stress memory. Proline accumulation is a striking metabolic adaptation of higher plants during various environmental stresses. Here we show that salinity-induced proline accumulation is memorable and HY5dependent light signaling is required for such a memory response. Primary salt stress induced the expression of. Delta(1)-pyrroline-5-carboxylate synthetase 1 (P5CS1), encoding a proline biosynthetic enzyme and proline accumulation, which were reduced to basal level during the recovery stage. Reoccurring salt stress-induced stronger P5CS1 expression and proline accumulation were dependent upon light exposure during the recovery stage. Further studies demonstrated that salt-induced transcriptional memory of P5CS1 is associated with the retention of increased H3K4me3 level at P5CS1 during the recovery stage. HY5 binds directly to light-responsive element, C/A-box, in the P5CS1 promoter. Deletion of the C/A-box or hy5 hyh mutations caused rapid reduction of H3K4me3 level at P5CS1 during the recovery stage, resulting in impairment of the stress memory response. These results unveil a previously unrecognized mechanism whereby light regulates salt-induced transcriptional memory via the function of HY5 in maintaining H3K4me3 level at the memory gene. |
关键词 | transcriptional memory light H3K4me3 HY5/HYH P5CS1 |
学科领域 | Multidisciplinary Sciences |
DOI | 10.1073/pnas.1610670114 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | HISTONE MODIFICATIONS ; PROLINE ACCUMULATION ; ABSCISIC-ACID ; GENES ; ELEMENTS ; IDENTIFICATION ; BIOSYNTHESIS ; DEGRADATION ; INTEGRATION ; EXPRESSION |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000390044900014 |
出版者 | NATL ACAD SCIENCES |
文献子类 | Article |
出版地 | WASHINGTON |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31271308] ; Ministry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology, China [2012CB114302] ; Chinese Academy of SciencesChinese Academy of Sciences [XDA08010105] |
作者邮箱 | jinjb@ibcas.ac.cn ; xjhua@ibcas.ac.cn |
作品OA属性 | Green Published, Bronze |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/25247 |
专题 | 中科院北方资源植物重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources & Beijing Bot Garden, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China |
推荐引用方式 GB/T 7714 | Feng, Xuan Jun,Li, Jing Rui,Qi, Shi Lian,et al. Light affects salt stress-induced transcriptional memory of P5CS1 in Arabidopsis[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2016,113(51). |
APA | Feng, Xuan Jun,Li, Jing Rui,Qi, Shi Lian,Lin, Qing Fang,Jin, Jing Bo,&Hua, Xue Jun.(2016).Light affects salt stress-induced transcriptional memory of P5CS1 in Arabidopsis.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(51). |
MLA | Feng, Xuan Jun,et al."Light affects salt stress-induced transcriptional memory of P5CS1 in Arabidopsis".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.51(2016). |
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