Low Temperature-Induced 30 (LTI30) positively regulates drought stress resistance in Arabidopsis: effect on abscisic acid sensitivity and hydrogen peroxide accumulation
文献类型：期刊论文
| 作者 | Shi, Haitao3; Chan, Zhulong1; Qian, Yongqiang2; Chen, Yinhua3 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2015-10-20 |
| 卷号 | 6页码:9 |
| 关键词 | Low Temperature-Induced 30 abscisic acid hydrogen peroxide drought stress reactive oxygen species Arabidopsis |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2015.00893 |
| 英文摘要 | As a dehydrin belonging to group II late embryogenesis abundant protein (LEA) family, Arabidopsis Low Temperature Induced 30 (LTI30)/XERO2 has been shown to be involved in plant freezing stress resistance. However, the other roles of AtLTI30 remain unknown. In this study, we found that the expression of AtLTI30 was largely induced by drought stress and abscisic acid (ABA) treatments. Thereafter, AtLTI30 knockout mutants and overexpressing plants were isolated to investigate the possible involvement of AtLTI30 in ABA and drought stress responses. AtLTI30 knockout mutants were less sensitive to ABA-mediated seed germination, while AtLTI30 overexpressing plants were more sensitive to ABA compared with wild type (WT). Consistently, the AtLTI30 knockout mutants displayed decreased drought stress resistance, while the AtLTI30 overexpressing plants showed improved drought stress resistance compared with WT, as evidenced by a higher survival rate and lower leaf water loss than WT after drought stress. Moreover, manipulation of AtLTI30 expression positively regulated the activities of catalases (CATs) and endogenous proline content, as a result, negatively regulated drought stress-triggered hydrogen peroxide (H2O2) accumulation. All these results indicate that AtLTI30 is a positive regulator of plant drought stress resistance, partially through the modulation of ABA sensitivity, H2O2 and proline accumulation. |
| 资助项目 | National Natural Science Foundation of China[31570249] ; National Natural Science Foundation of China[31370302] ; startup funding of Haitian University[kyqd1531] ; Basic Research Fund of National Non-profit Research institutions[CAFYBB2012043] ; Basic Research Fund of National Non-profit Research institutions[RIF2014-03] ; "the Hundred Talents Program"[54Y154761O01076] ; "the Hundred Talents Program"[29Y329631O0263] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000364345900001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/189]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Shi, Haitao |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan, Peoples R China 2.Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Res Inst Forestry, Beijing, Peoples R China 3.Hainan Univ, Coll Agr, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Haitao,Chan, Zhulong,Qian, Yongqiang,et al. Low Temperature-Induced 30 (LTI30) positively regulates drought stress resistance in Arabidopsis: effect on abscisic acid sensitivity and hydrogen peroxide accumulation[J]. FRONTIERS IN PLANT SCIENCE,2015,6:9. |
| APA | Shi, Haitao,Chan, Zhulong,Qian, Yongqiang,&Chen, Yinhua.(2015).Low Temperature-Induced 30 (LTI30) positively regulates drought stress resistance in Arabidopsis: effect on abscisic acid sensitivity and hydrogen peroxide accumulation.FRONTIERS IN PLANT SCIENCE,6,9. |
| MLA | Shi, Haitao,et al."Low Temperature-Induced 30 (LTI30) positively regulates drought stress resistance in Arabidopsis: effect on abscisic acid sensitivity and hydrogen peroxide accumulation".FRONTIERS IN PLANT SCIENCE 6(2015):9. |
入库方式： OAI收割
来源：武汉植物园
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