Response of xanthophyll cycle and chloroplastic antioxidant enzymes to chilling stress in tomato over-expressing glycerol-3-phosphate acyltransferase gene
文献类型： 外文期刊
作者： Sui, N. 1 ; Li, M. 2 ; Liu, X.-Y. 2 ; Wang, N. 2 ; Fang, W. 2 ; Meng, Q. -W. 2 ;
作者机构： 1.Shandong Agr Univ, Key Lab Crop Biol Shandong Prov, Coll Life Sci, Tai An 271018, Peoples R China
2.Shandong Agr Univ, Key Lab Crop Biol Shandong Prov, Coll Life Sci, Tai An 271018, Peoples R China; Shandong Acad Agr Sci, Jinan 250100, Peoples R China
关键词： ascorbate peroxidase;glycerol-3-phosphate acyltransferase;hydrogen peroxide;Lycopersicon;net photosynthetic rate;photosystems 1 and 2;quenching;superoxide dismutase
期刊名称：PHOTOSYNTHETICA （ 影响因子：3.189； 五年影响因子：3.38 ）
ISSN： 0300-3604
年卷期： 2007 年 45 卷 3 期
页码：
收录情况： SCI
摘要： Over-expression of chloroplastic glycerol-3-phosphate acyltransferase gene (LeGPAT) increased unsaturated fatty acid contents in phosphatidylglycerol (PG) of thylakoid membrane in tomato. The effect of this increase on the xanthophyll cycle and chloroplast antioxidant enzymes was examined by comparing wild type (WT) tomato with the transgenic (TG) lines at chilling temperature (4 degrees C) under low irradiance (100 mu mol m(-2) s(-1)). Net photosynthetic rate and the maximal photochemical efficiency of photosystem (PS) 2 (F-v/F-m) in TG plants decreased more slowly during chilling stress and F-v/F-m recovered faster than that in WT plants under optimal conditions. The oxidizable P700 in both WT and TG plants decreased during chilling stress under low irradiance, but recovered faster in TG plants than in the WT ones. During chilling stress, non-photochemical quenching (NPQ) and the de-epoxidized ratio of xanthophyll cycle in WT plants were lower than those of TG tomatoes. The higher activities of superoxide dismutase (SOD) and ascorbate peroxidase (APX) in TG plants resulted in the reduction Of O(2)(-)and H2O2 contents during chilling stress. Hence the increase in content of unsaturated fatty acids in PG by the over-expression of LeGPAT could alleviate photoinhibition of PS2 and PSI by improving the de-epoxidized ratio of xanthophyll cycle and activities of SOD and APX in chloroplast.
- 相关文献
作者其他论文 更多>>
-
Immobilized lignin peroxidase on chitosan-modified halloysite nanotubes for degradation of polycyclic aromatic hydrocarbons in soil
作者：Chai, C.;Ji, Y.;Wang, N.;Ge, W.;Wu, J.;Wang, Y. Q.;Li, Y.
关键词：Lignin peroxidase; Halloysite nanotubes; Immobilization; PAHs; Degradation
-
MdCKS1 Expression Involved in Fruit Size in Apple Cultivar 'Fuji' and 'Ralls'
作者：Jiao, Q. Q.;Cui, M.;Chen, X. S.;Zhang, Z. Y.;Wang, N.;Jiang, Y. M.;Mao, Z. Q.;Shen, X.;Jiang, S. H.;Chen, X. L.;Jiao, Q. Q.;Cui, M.;Chen, X. S.;Zhang, Z. Y.;Wang, N.;Jiang, Y. M.;Mao, Z. Q.;Shen, X.;Jiang, S. H.;Chen, X. L.;Jiao, Q. Q.;Cui, M.;Shu, J.
关键词：Malus x domestica; apple; MdCKS1; fruit size; cell cycle; phytohormone
-
Cloning and characterization of SPL-family genes in the peanut (Arachis hypogaea L.)
作者：Li, M.;Zhao, S. Z.;Zhao, C. Z.;Zhang, Y.;Xia, H.;Wan, S. B.;Wang, X. J.;Lopez-Baltazar, J.
关键词：SQUAMOSA promoter-binding protein-like protein;Peanut;Gene expression;Pod development
-
Resistance evaluation for herbicide resistance-endowing acetolactate synthase (ALS) gene mutations using Raphanus raphanistrum populations homozygous for specific ALS mutations
作者：Yu, Q.;Han, H.;Purba, E.;Walsh, M. J.;Powles, S. B.;Li, M.;Purba, E.
关键词：acetolactate synthase;herbicide resistance;target-site mutation;wild radish
-
Damaging mechanisms of chilling- and salt stress to Arachis hypogaea L. leaves
作者：Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Li, L.;Meng, Q. -W.;Bi, C.
关键词：chilling temperature; peanut; photoinhibition; reactive oxygen species; salt stress
-
Increase in unsaturated fatty acids in membrane lipids of Suaeda salsa L. enhances protection of photosystem II under high salinity
作者：Sui, N.;Li, K.;Song, J.;Wang, B. -S.;Li, M.
关键词：chlorophyll;salt stress;unsaturated fatty acids.;membrane lipid;photosystem;Suaeda salsa;Internet resource.
-
Damaging mechanisms of chilling- and salt stress to Arachis hypogaea L. leaves
作者：Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Zhang, Y. -L.;Wan, S. -B.;Meng, J. -J.;Li, X. -G.;Qin, L. -Q.;Li, L.;Meng, Q. -W.;Bi, C.
关键词：superoxide dismutase: SOD;9054-89-1;EC 1.15.1.1;reactive oxygen species: ROS;7782-44-7;PSII;malondialdehyde: MDA;542-78-9;accumulation;salt stress;membrane permeability;chilling stress;water-water cycle;nonphotochemical quenching;maximal photochemical efficiency;damaging mechanism;high-irradiance stress
