Priming effect of abscisic acid on alkaline stress tolerance in rice (Oryza sativa L.) seedlings
文献类型：期刊论文
| ; | |
| 作者 | L. X. Wei; B. S. Lv; M. M. Wang; H. Y. Ma; H. Y. Yang; X. L. Liu; C. J. Jiang; Z. W. Liang |
| 刊名 | Plant Physiology and Biochemistry
 ; Plant Physiology and Biochemistry
|
| 出版日期 | 2015 ; 2015 |
| 卷号 | 90页码:50-57 |
| 通讯作者 | 梁正伟，姜昌杰 ; 梁正伟，姜昌杰 |
| 中文摘要 | Saline alkaline stress is characterized by high salinity and high alkalinity (high pH); alkaline stress has been shown to be the primary factor inhibiting rice seedling growth. In this study, we investigated the potential priming effect of abscisic acid (ABA) on tolerance of rice seedlings to alkaline stress simulated by Na2CO3. Seedlings were pretreated with ABA at concentrations of 0 (control), 10, and 50 mu M by root-drench for 24 h and then transferred to a Na2CO3 solution that did not contain ABA. Compared to control treatment, pretreatment with ABA substantially improved the survival rate of rice seedlings and increased biomass accumulation after 7 days under the alkaline condition. ABA application at 10 mu M also alleviated the inhibitory effects of alkaline stress on the total root length and root surface area. Physiologically, ABA increased relative water content (RWC) and decreased cell membrane injury degree (MI) and Na+/K+ ratios. In contrast, fluridone (an ABA biosynthesis inhibitor) decreased the RWC and increased MI in shoots under the alkaline conditions. These data suggest that ABA has a potent priming effect on the adaptive response to alkaline stress in rice and may be useful for improving rice growth in saline alkaline paddy fields. (C) 2015 Elsevier Masson SAS. All rights reserved.; Saline alkaline stress is characterized by high salinity and high alkalinity (high pH); alkaline stress has been shown to be the primary factor inhibiting rice seedling growth. In this study, we investigated the potential priming effect of abscisic acid (ABA) on tolerance of rice seedlings to alkaline stress simulated by Na2CO3. Seedlings were pretreated with ABA at concentrations of 0 (control), 10, and 50 mu M by root-drench for 24 h and then transferred to a Na2CO3 solution that did not contain ABA. Compared to control treatment, pretreatment with ABA substantially improved the survival rate of rice seedlings and increased biomass accumulation after 7 days under the alkaline condition. ABA application at 10 mu M also alleviated the inhibitory effects of alkaline stress on the total root length and root surface area. Physiologically, ABA increased relative water content (RWC) and decreased cell membrane injury degree (MI) and Na+/K+ ratios. In contrast, fluridone (an ABA biosynthesis inhibitor) decreased the RWC and increased MI in shoots under the alkaline conditions. These data suggest that ABA has a potent priming effect on the adaptive response to alkaline stress in rice and may be useful for improving rice growth in saline alkaline paddy fields. (C) 2015 Elsevier Masson SAS. All rights reserved. |
| WOS记录号 | WOS:000353845000006 |
| 源URL | [http://159.226.123.10/handle/131322/6532]  |
| 专题 | 东北地理与农业生态研究所_盐渍土生态与改良学科组 |
| 推荐引用方式 GB/T 7714 | L. X. Wei,B. S. Lv,M. M. Wang,et al. Priming effect of abscisic acid on alkaline stress tolerance in rice (Oryza sativa L.) seedlings, Priming effect of abscisic acid on alkaline stress tolerance in rice (Oryza sativa L.) seedlings[J]. Plant Physiology and Biochemistry, Plant Physiology and Biochemistry,2015, 2015,90, 90:50-57, 50-57. |
| APA | L. X. Wei.,B. S. Lv.,M. M. Wang.,H. Y. Ma.,H. Y. Yang.,...&Z. W. Liang.(2015).Priming effect of abscisic acid on alkaline stress tolerance in rice (Oryza sativa L.) seedlings.Plant Physiology and Biochemistry,90,50-57. |
| MLA | L. X. Wei,et al."Priming effect of abscisic acid on alkaline stress tolerance in rice (Oryza sativa L.) seedlings".Plant Physiology and Biochemistry 90(2015):50-57. |
入库方式： OAI收割
来源：东北地理与农业生态研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。