|
|||||
|
|
| 盐胁迫对杜鹃生理生化与叶绿体亚显微结构的影响 | |
| 引用本文： | 吴月燕,李波,张燕忠,崔鹏. 盐胁迫对杜鹃生理生化与叶绿体亚显微结构的影响[J]. 浙江大学学报(农业与生命科学版), 2011, 37(6). DOI: 10.3785/j.issn.1008-9209.2011.06.008 |
| 作者姓名： | 吴月燕 李波 张燕忠 崔鹏 |
| 作者单位： | 1. 浙江万里学院生物与环境学院,浙江宁波,315100 2. 浙江万里学院生物与环境学院,浙江宁波315100;浙江大学农业与生物技术学院农学系,浙江杭州310058 3. 浙江万里学院生物与环境学院,浙江宁波315100;华南农业大学园艺学院茶学系,广东广州510642 |
| 基金项目： | 浙江省重大科技专项重点农业资助项目 |
| 摘 要： | 以皋月杜鹃(Rhododendron indicum)为材料,采用盆栽试验研究不同浓度盐胁迫对杜鹃花生理生化特征和叶绿体亚显微结构的影响.结果表明:在低盐胁迫下,植株生长健壮,可溶性蛋白质含量、过氧化氢酶(CAT)、过氧化物酶(POD)和超氧化物歧化酶(SOD)活性均显著高于对照,叶绿素和丙二醛(MDA)含量增加不显著,叶绿体亚显徽结构完好,基粒片层排列整齐,与对照无差异,表明杜鹃可在低NaCl含量的土壤中正常生长；在120 mmol·L-1 NaCl溶液处理下,植株叶片开始出现较轻的受害症状,随着盐浓度升高,植株受害症状加重,可溶性蛋白质和叶绿素含量显著下降,而MDA含量显著上升,POD、CAT和SOD活性先升后降,叶绿体结构逐渐膨胀成圆形,空洞化程度渐渐变大,膜慢慢解体,表明杜鹃在一定程度上具有抗盐胁迫的能力；在高盐胁迫下,叶绿体结构和功能被破坏,叶片黄化衰老. |
| 关 键 词： | 盐胁迫 杜鹃花 生理生化特征 叶绿体亚显微结构 |
Effects of salt stress on physiological-biochemical characteristics and chloroplast submicroscopic structure of Rhododendron indicum |
|
| WU Yue-yan,LI Bo,ZHANG Yan-zhong,CUI Peng. Effects of salt stress on physiological-biochemical characteristics and chloroplast submicroscopic structure of Rhododendron indicum[J]. Journal of Zhejiang University(Agriculture & Life Sciences), 2011, 37(6). DOI: 10.3785/j.issn.1008-9209.2011.06.008 | |
| Authors: | WU Yue-yan LI Bo ZHANG Yan-zhong CUI Peng |
| Affiliation: | WU Yue-yan1,LI Bo1,2,ZHANG Yan-zhong1,3,CUI Peng1,2 (1.College of Biology and Environment,Zhejiang Wanli University,Ningbo,Zhejiang 315100,China,2.Department of Agronomy,College of Agriculture & Biotechnology,Zhejiang University,Hangzhou 310058,3.Department of Tea Sciences,College of Horticulture,South China Agricultural University,Guangzhou 510642,China) |
| Abstract: | A series of pot experiments were conducted to understand the effects of salt stress on physiological-biochemical characteristics and chloroplast submicroscopic structure of Rhododendron indicum.The results indicated a robust development of the individuals under low salt stress.The contents of soluble protein,catalase(CAT),peroxidase(POD) and superoxide dismutase(SOD) activities were significantly higher than those of the control,while the variation of malondialdehyde(MDA) and chlorophyll concentrations were... |
| Keywords: | salt stress Rhododendron indicum physiological-biochemical characteristics chloroplast submicroscopic structure |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
