| Biology and Soil |
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| Variety of Antioxidant System of Tetraena mongolica in Different Growth Stages and Habitats |
| SHI Song-li1,2, WANG Ying-chun1, LI Xiao1,3, ZHOU Hong-bing1,2 |
1.College of Life Sciences, Inner Mongolia University, Hohhot 010021, China;
2.BaoTou Medical College, Baotou 014060, Inner Mongolia, China;
3.Inner Mongolia Medical College, Hohhot 010059, China |
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Abstract The physical and chemical characters of soil, the density and coverage and age-class structure of T. mongolica population in different habitats were analyzed. Besides, the change in antioxidant system of T. mongolica in different growth stages and habitats were studied. Results are showed as follows: (1)There is a significant difference in density, coverage and age-class structure of T. mongolica population in different habitats. The habitats of low mountain, upland and hill are beneficial to seedling renewal, and the population density and coverage in the three habitats are significantly higher than that in high plain and rude plain. (2)The physical and chemical characters of soil are significantly different. Cluster analysis shows that the habitat types can be classified into group A (just low mountains, upland and hill) and group B (just high plain and rude plain). The contents of organic matter, water, nutrition elements (N, P, K), and micro-elements（total and available Fe, Mn, Cu, Zn, Mo, B）in the group A are significantly higher than that in group B. (3)The content of MDA, activities of enzymatic antioxidants (SOD, POD, CAT, AsA-POD, GR) and contents of non-enzymatic antioxidants (AsA, GSH) in different growth stages are all showed as values in August>in June>in May, and the anti-oxidation of T. mongolica results from the mutual effects of enzymatic antioxidants and non-enzymatic antioxidants. (4)The antioxidant systems are different among the five habitats. The membrane lipid peroxidation of T. mongolica in group A plots is relatively low, so the activities of enzymatic antioxidants and contents of non-enzymatic antioxidants are relatively low. The drought stress to T. mongolica is relatively significant and the soil is relatively impoverish in group B plots, so the activities of enzymatic antioxidants and contents of non-enzymatic antioxidants are relatively high.
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Received: 24 September 2011
Published: 20 May 2012
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| [1]中国科学院内蒙古宁夏综合考察队.内蒙古植被[M].北京:科学出版社,1985:687-688.[2]马毓泉,张寿洲.四合木系统地位的研究[J].植物分类学报,1990,28(2):89-95.[3]杨持,王迎春,刘强,等.四合木保护生物学[M].北京:科学出版社,2002:52-56,141-150.[4]王迎春,侯艳伟,杨持.四合木种群生殖对策的研究[J].植物生态学报,2001,25（6）:699-703.[5]张颖娟,杨持.西鄂尔多斯特有种四合木种群遗传多样性及遗传分化研究[J].生态学报,2001,21(3):506-511.[6]Ge X J,Yu Y,Zhao N X,et al.Genetic variation in the endangered Inner Mongolia endemic shrub Tetraena mongolica Maxim.(Zygophyllaceae)[J].Biological Conservation,2003,111(3):427-434.[7]智颖飙,杨持,姚一萍,等.西鄂尔多斯地区土壤与四合木微量元素含量征分析[J].应用生态学报,2004,15（3）:396-400.[8]智颖飙,杨持,王再岚,等.四合木氨基酸含量特征分析[J].内蒙古大学学报(自然科学版),2005,36(3):306-312.[9]李骁,王迎春,征荣.西鄂尔多斯地区强旱生小灌木水分关系参数的研究[Ⅰ][J].中国沙漠,2005,25(4):581-586.[10]李骁 王迎春,征荣.西鄂尔多斯地区强旱生小灌木水分关系参数的研究[Ⅱ][J].应用生态学报,2007,18(5):963-967.[11]智颖飙,杨持,王忠生,等.孑遗植物四合木的濒危肇因与机制[J].生态学报,2008,28（2）:767-776.[12]周志刚,刘果厚,杨利祥,等.四合木硬枝扦插生根特性的研究[J].中国沙漠,2009,29（3）:519-523.[13]甄江红,玉山,赵明等.濒危植物四合木的生境适宜性评价[J].中国沙漠,2010,30（5）:1075-1085.[14]张云飞,杨持,李博,等.鄂尔多斯高原特有种四合木生长和繁殖间的种群间变异与濒危机制[J].生态学报,2003,23(3):436-443.[15]甑江红,刘果厚.不同生境条件下四合木种群结构特征[J].生态学报,2008,28（4）:1829-1841.[16]甑江红,刘果厚.不同生境四合木种群数量特征比较研究[J].中国沙漠,2008,28（3）:462-467.[17]石松利,王迎春,周健华.四合木水分参数季节变化及生境间差异性研究[J].生态学报,2008,28(12):6079-6089.[18]石松利,王迎春,周健华.不同生境条件四合木内源激素季节变化及种群差异性研究[J].生态学报,2009,29（5）:2252-2262.[19]Fransen B,Blijjenberg J,de Kroon H.Root morphological and physiological plasticity of perennial grass species and the exploitation of spatial and temporal heterogeneous nutrient patches[J].Plant and Soil,1999,211:179-189.[20]Sultan S E.Phenotypic plasticity for plant development,function and life history[J].Trends in Plant Science,2001,5(12):537-542.[21]He W M,Dong M.Plasticity in physiology and growth of Salix mastudana in response to simulated atmospheric temperature rise in the Mu Us Sandland[J].Photosynthetica,2003,41:297-300.[22]张云飞,杨持,李博,等.鄂尔多斯高原特有种四合木生长和繁殖的种群间变异与濒危机制[J].生态学报,2003,23(3):436-443.[23]鲍士旦.土壤农化分析[M].北京:中国农业出版社,2005:115-151.[24]鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000:205-227.[25]Beauchamp C,Fridovich I.Superoxide dismutase: improved assays and assay applicable to acrylamide gels[J].Analytical Biochemistry,1971,44:276-287.[26]Chance B,Maehly A C.Assay of catalases and peroxidases[M]//Colowick S P,Kaplan N O.Methods in Enzymology.New York:Academic Press,1955:764-775.[27]Knraer O C,Durner J,Boger P.Alterations in the antioxidative system of suspension-cultured soybean cells (Glycine max) induced by oxidative stress[J].Physiologia Plantarum,1996,97(2):388-396.[28]陈建勋,王晓峰.植物生理学实验指导[M].广州:华南理工大学出版社,2002:32.[29]Madhava Rao K V,Sresty T V S.Antioxidative parameters in the seedlings of pigeonpea (Cajanus cajan (L.)Millspaugh) in response to Zn and Ni stresses[J].Plant Science,2000,157:113-128.[30]Anderson J V,Chevone B I,Hess J L.Seasonal variation in the antioxidant system of eastern white pine needles[J].Plant Physiology,1992,98: 501-508[31]Braford M M.A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding[J].Analytical Biochemistry,1976,72:248-254.[32]黄海霞,王刚,陈年来.荒漠灌木逆境适应性研究进展[J].中国沙漠,2010,30（5）:1060-1067.[33]李磊,贾志清,朱雅娟,等.我国干旱区植物抗旱机理研究进展[J].中国沙漠,2010,30（5）:1053-1059.[34]Foyer C H,Halliwell B.The presence of glutathione and glutathione reductase in chloroplasts:A proposed role in ascorbic acid metabolism[J].Planta,1976,133:21-25.[35]韩秀珍,马建文,布和敖斯尔,等.利用卫星ETM与样方统计数据研究西鄂尔多斯珍稀濒危植物种群分布规律[J].遥感学报,2002,6(2):136-141.[36]杨持,智颖飙,征荣.四合木种群的生态适应性[J].生态学报,2006,26(1):91-96. |
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2012, Vol. 32 
