|Table of Contents|

Effect of Simulated Drought Stress on Antioxidant Enzyme System of Four Native Species in the Ecotone Between the Minjiang Dry Valley and Mountain Forest(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

2010 04
Research Field:
Publishing date:


Effect of Simulated Drought Stress on Antioxidant Enzyme System of Four Native Species in the Ecotone Between the Minjiang Dry Valley and Mountain Forest
CAI Haixia WU Fuzhong YANG Wanqin
(Sichuan Key Laboratory of Forestry Ecological Engineering, Sichuan Agricultural University, Ya’an 625014, Sichuan, China)
dry valley ecotone endemic species antioxidant enzyme activities drought stress
Q945.78 : Q948.112.3

To understand the resistibility of plant species in the ecotone between the Minjiang dry valley and mountain forest under drought stress, antioxidant enzyme activities, the contents of Pro and MDA, and the contents of chlorophyll and carotenoids were investigated using 4 native plants (Setaria viridis, Cupressus chengiana, Salix paraqplesia and Hippophae rhamnoides) under different drought stress conditions. Drought stress significantly reduced the contents of chlorophyll and carotenoids, but increased membrane permeability, the contents of Pro and MDA, and antioxidant enzyme activities (POD, SOD and CAT). Compared with C. chengiana and S. paraqplesia, S. viridis and H. rhamnoides showed higher drought-resistibility with higher Chl a/b and Pro contents, and POD, SOD and CAT activities. However, S. paraqplesia showed lower drought-resistibility with lower Chl a/b and Pro contents, and POD, SOD and CAT activities compared with the other species. The results could provide useful scientific evidences to the adaptation of plants with different life-types in ecotone ecosystem. Fig 2, Tab 2, Ref 26


1 Maestre FT, Valladares F, Reynolds JF. Is the change of plant–plant interactions with abiotic stress predictable? A meta-analysis of field results in arid environments. J Ecol, 2005, 93: 748~757
2 Bailey RG. Identifying ecoregion boundaries. Environ Manage, 2004, 34: 14~26
3 Pan RZ (潘瑞炽), Wang XJ (王小菁), Li NH (李娘辉). Plant Physiology. 6th ed. Beijing: Higher Educate Press (北京: 高等教育出版社), 2005
4 Du CK (杜朝昆), Li ZG (李忠光), Gong M (龚明). The adaptation to heat and chiling stresses and relation to antioxidant enzymes of Maise seedlings induced by salicylic acid. Plant Physiol Commun, 2005, 41 (1): 19~22
5 Liu GH (刘国华), Ma KM (马克明), Fu BJ (傅伯杰), Guan WB (关文彬), Kang YX (康永祥), Zhou JY (周建云), Liu SL (刘世梁). Aboveground biomass of main shrubs in dry valley of Minjiang River. Acta Ecol Sin (生态学报), 2003, 23 (9): 1757~1764
6 Zhou ZQ (周志琼), Bao WK (包维楷), Wu FZ (吴福忠), Pang XY (庞学勇), He X (何晓), Wu N (吴宁). Growth and reproduction of Rosa multibracteata population in Minjiang River dry valley. Chin J Appl Ecol (应用生态学报), 2007, 18 (7): 1407~1413
7 Li FL (李芳兰), Bao WK (包维楷), Pang XY (庞学勇), Leng L (冷俐). Seedling emergence, survival and growth of five endemic species in the valley of Minjiang River. Acta Ecol Sin (生态学报), 2009, 29 (5): 2219~2230
8 Reynolds JF, Smith MS, Lambin EF, Turner BL,Mortimore M, Batterbury SP, Downing TE, Dowlatabadi H,. Fernández RJ, Herrick JE, Huber-Sannwald E, Jiang H, Leemans R, Lynam T, Maestre FT, Ayarza M, Walker B. Global desertification: Building a science for dryland development. Science, 2007, 316: 847~851
9 Wu F , Bao W, Zhou Z, Wu N. Carbon accumulation, nitrogen and phosphorus use efficiency of Sophora davidii seedlings in response to N supply and water stress. J Arid Environ, 2009, 12 (73): 1067~1073
10 Wang HM (王红梅), Bao WK (包维楷), Li FL (李芳兰). Physiological and biochemical responses of two-years-old Sophora davidii seedling leaves to different water stresses. Chin J Appl Environ Biol (应用与环境生物学报), 2008, 14 (6): 757~762
11 Xu XL (徐新良), Jiang D (江东), Zhuang DF (庄大方), Qiu DS (邱冬生). Assessment about the impact of Wenchuan Earthquake on ecological environment. Acta Ecol Sin (生态学报), 2008, 28 (12): 5899~5908
12 Liu B (刘彬), Wu FZ (吴福忠), Zhang J (张健), Yang WQ (杨万勤). Key issues in restoration on earthquake-damaged ecosystem at the ecotone between dry valley and montane forest of the Minjiang River. Acta Ecol Sin (生态学报), 2008, 28 (12): 5892~5898
13 Tan B (谭波), Zhang J (张健), Yang WQ (杨万勤), Wang M (汪明), Xue Q (薛樵), Dong SG (董生刚). The biomass and carbon stock of fine roots in the representative plantation in the ecotone between dry valleys and mountain forest in the Minjiang River Basin. Sichuan J Sci & Technol (四川林业科技), 2008, 29 (2): 18~22
14 Li HS (李合生), Sun Q (孙群), Zhao SJ (赵世杰), Zhang WH (章文华). Experimental Principle and Technique for Plant Physiology and Biochemistry. Beijing: Higher Education Press (北京: 高等教育出版社), 2000
15 Gao JF (高俊风). Experimental Technique for Plant Physiology. Xi’an, China: World Books Press (西安: 世界图书出版社), 2000
16 Liu ZQ (刘祖琪), Zhang SC (张石诚). Resistibility of Plant Physiology. Beijing: Chinese Agriculture Press (北京: 中国农业出版社), 1994. 369~382
17 Wu F, Bao W, Li F, Wu N. Effects of Water Stress and Nitrogen Supply on leaf gas exchange and fluorescence parameters of Sophora davidii seedlings. Photosynthetica, 2008, 46: 40~48
18 Smirnoff N. Therole of active oxygen in the response of plants to water deficit and desiccation. New Phytol, 1993, 125: 27~58
19 Jeon MW, Ali MB, Hahn EJ, Paek KY. Photosynthetic pigments, morphology and leaf gas exchange during ex-vitro acclimatization of micro-propagated CAM Doritaenopsis plantlets under relative humidity and air temperature. Environ & Exp Bot, 2006, 55: 183~194
20 Li Y (李源), Shi SL (师尚礼), Wang Z (王赞), Wang YQ (王运琦), Zhang Q (张耿), Sun GZ (孙桂芝). Physiological study on drought resistance of Dactylis glomerata under drought stress at seedling stage. Chin J Grassl (中国草地学报), 2007, 29 (2): 35~39
21 Tracy M, Montante JM, Allenson TE, Hough RA. Long-term responses of aquatic macrophyte diversity and community structure to variation in nitrogen loading. Plant Physiol Biochem, 2003, 41: 391~397
22 Chen KN (陈开宁), Chen XF (陈小峰), Chen WM (陈伟民), Liu ES (刘恩生), Lan CJ (兰策介), Xu H (许海). Effects of sediments on submerged macrophytes growth. Chin J Appl Ecol (应用生态学报), 2006, 17 (8): 1511~1516
23 Wang AG (王爱国), Shao CB (邵从本), Luo GH (罗广华). Research of MDA as index of membrane lipid peroxidation. Plant Physiol Commun (植物生理学通讯), 1986, 28 (3): 84~90
24 Jiang YS (姜英淑), Chen SM (陈书明), Wang QY (王秋玉), Lu BM (卢宝明). Effects of the drought stress on physiological characteristics of two Cerasus humilis provenances. Sci Silv Sin (林业科学), 2009, 45 (6): 6~11
25 Peng FR (彭方仁), Yang YZ (杨玉珍), Zhu ZX (朱振贤). Effects of drought stress on liqid peroxidation and protective enzyme systems in leaf of Toona sinensis from different provenances. J Plant Resour & Environ (植物资源与环境学报), 2007, 16 (2): 44~47
26 Scandalios JG. Oxygen stress and superdxide dismutase. Plant Physiol, 1993, 101: 7~12


Last Update: 2010-08-25