Effects of cytokinin on photosynthetic gas exchange, chlorophyll fluorescence parameters and antioxidative system in seedlings of eggplant (Solanum melongena L.) under salinity stress
文献类型: 外文期刊
第一作者: Wu, Xuexia
作者: Wu, Xuexia;Zhu, Zongwen;Li, Xian;Zha, Dingshi
作者机构:
关键词: 6-BA;Photosynthetic gas exchange;Chlorophyll fluorescence;Antioxidant enzymes;Oxidative damage;Eggplant;Salt stress
期刊名称:ACTA PHYSIOLOGIAE PLANTARUM ( 影响因子:2.354; 五年影响因子:2.711 )
ISSN: 0137-5881
年卷期: 2012 年 34 卷 6 期
页码:
收录情况: SCI
摘要: The effects of 6-benzyladenine (6-BA) on plant growth, photosynthetic gas exchange, chlorophyll fluorescence and antioxidant systems of eggplant (Solanum melongena L.) under salt stress were investigated. Eggplant seedlings were exposed to 90 mM NaCl with four levels of 6-BA (5, 10, 20 and 50 mu M) for 10 days. 6-BA at lower concentrations increased chlorophyll concentration, the net photosynthetic rate (P (N)), stomatal conductance (g (s)), and transpiration rate (E), intercellular CO2 concentration (C (i)) and water use efficiency (WUE), as well as the quantum efficiency of PSII photochemistry (I broken vertical bar PSII), photochemical quenching (q (p)), and decreased non-photochemical quenching (NPQ), while higher concentrations reduced the effects or even exacerbated the occurrence of photosynthetic capacity. The activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) increased significantly during salt treatments, and induced the increase of the activities of these enzymes at certain concentrations of 6-BA. 6-BA also reduced significantly malonaldehyde (MDA) contents and O (2) (center dot-) production. It was concluded that 6-BA could alleviate the detrimental effects of salt stress on plant growth by increasing photosynthetic efficiency and enhancing antioxidant enzyme systems in leaves at a proper concentration and of the varying 6-BA concentrations used, the most effective concentration for promoting growth was 10 mu M under saline conditions.
分类号:
- 相关文献
作者其他论文 更多>>
-
WRKY transcription factor 40 from eggplant (Solanum melongena L.) regulates ABA and salt stress responses
作者:Zhang, Aidong;Xiao, Kai;Zhu, Weimin;Wu, Xuexia;Zha, Dingshi;Zhang, Min;Shang, Jing;Wang, Shengjie
关键词:
-
Saline-alkali soil amended with biochar derived from maricultural-solid-waste: Ameliorative effect and mechanism
作者:Cai, Yongkun;Wu, Lele;Song, Xiefa;Li, Xian;Ren, Liping;Wu, Lele;Li, Jun;Yang, Shengmao
关键词:Maricultural-solids-waste; Biochar; Saline-alkali soil; Salicornia europaea L
-
Conductive MXene/Polymer Composites for Transparent Flexible Supercapacitors
作者:Ren, Shan;Pan, Xiangyu;Zhang, Yangyang;Xu, Jianlong;Zhang, Xuanyi;Gao, Xu;Zhong, Yanan;Wang, Sui-Dong;Ren, Shan;Liu, Zhifang;Li, Xian;Chen, Sheng;Wang, Sui-Dong
关键词:composite materials; conductive polymer; MXene; supercapacitors; transparent flexible devices
-
Advances in smartphone assisted sensors for on-site detection of food safety based on fluorescence on-off-on mode: A review
作者:Fu, Wei;Fu, Xiaqing;Li, Zhemin;Li, Xian;Li, Zhemin;Liu, Zhifang
关键词:On-site detection; Food safety; Smartphone; "on-off-on" fluorescence mechanism; Portable sensors
-
Double synergic chitosan-coated poly (lactic-co-glycolic) acid nanospheres loaded with nucleic acids as an intranasally administered vaccine delivery system to control the infection of foot-and-mouth disease virus
作者:Li, Xian;Zhang, Zhong-wang;Zhang, Fu-dong;Li, Jia-hao;Zhai, Kai-ge;Liu, Xin-sheng;Pan, Li;Li, Xian;Zhang, Zhong-wang;Zhang, Fu-dong;Li, Jia-hao;Zhai, Kai-ge;Liu, Xin-sheng;Pan, Li;Liu, Xin-sheng;Pan, Li
关键词:FMDV; Chitosan delivery system; Fms-like tyrosine kinase receptor 3 ligand; Nasal mucosal vaccine; Cross-protective
-
Fine Mapping of Candidate Gene Controlling Anthocyanin Biosynthesis for Purple Peel in Solanum melongena L.
作者:Xiao, Kai;Tan, Feng;Zhang, Aidong;Zhou, Yaru;Zhu, Weimin;Zha, Dingshi;Wu, Xuexia;Bao, Chonglai
关键词:anthocyanin; eggplant; peel color; candidate gene
-
Effects of carbon source addition strategies on water quality, growth performance, and microbial community in shrimp BFT aquaculture systems
作者:Sun, Yue;Dong, Dengpan;Li, Meng;Yang, Xiaohan;Song, Xiefa;Li, Xian;Zhang, Jiasong
关键词:Biofloc; New strategy; C/N; Shrimp; High-throughput sequencing