青海省药用植物龙葵栽培前后抗性生理指标的变化  

Variation of Resistant Physiology Index of Solanum nigrum before and after Artificial Cultivation in Qinghai Province

作　　者：苏旭[1,2] 刘玉萍[3] 廉海霞[1] 吴学明[1] 

机构地区：[1]青海师范大学生命与地理科学学院,青海西宁810008 [2]青海大学青海省高原作物种质资源创新与利用国家重点实验室培育基地,青海西宁810016 [3]青海师范大学思想政治理论课教学科研部,青海西宁810008

出　　处：《西南农业学报》2013年第5期1838-1842,共5页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(31260052);青海省高原作物种质资源创新与利用国家重点实验室培育基地开放课题项目(2013-01);青海省自然科学基金项目(2011-Z-745);教育部"春晖计划"合作科研项目(Z2010078);青海师范大学科研创新计划项目(012050106);青海师范大学博士科研启动经费(202500205)

摘　　要：利用常规抗性生理指标测定方法对青海省药用植物龙葵栽培前后抗氧化酶活性进行了研究。结果显示:①野生龙葵的抗氧化酶SOD、POD和CAT活性高于栽培的,其中野生和栽培龙葵中SOD和POD活性的差异达到显著水平(P<0.05),CAT活性的差异达到极显著水平(P<0.01);②野生龙葵中丙二醛和可溶性糖含量明显高于栽培的;③野生龙葵叶片中的蛋白质含量显著低于栽培的,而前者果实中的蛋白质含量则极显著低于栽培中的。研究表明,栽培前后抗性生理指标的变化是青藏高原低温、低气压、强辐射等多种逆境生态因子长期作用的结果,是植物对生态环境的一种生理性适应。The antioxidases activity of Solanum nigrum with officinal herbs growing Qinghai province was studied by adopting conventional determination method of physiology indices before and after cultivation.The result showed that （i）the antioxidases activity of SOD,POD and CAT found in wild Solanum nigrum was higher than that in cultivated one,of which the difference of SOD and POD activity between cultivated and wild ones was significant （P ＜0.05）,while the difference of CAT activity was extremely significant （P ＜0.01）.（ii）The contents of malondialdehyde and soluble sugars in wild Solanum nigrum were obviously higher than that in cultivated one.（iii）The protein content in leaves of wild Solanum nigrum was significantly lower than that in the cultivated one,while the protein content in fruits of the former was very significantly lower than that in fruits of the later.The result revealed that the changes of resistant physiological indices before and after cultivation were the result by adverse environments including the low temperature,low air pressure,strong solar radicalization,etc.It was a kind of physiological adaption to ecological environments.

关 键 词：青海省 龙葵 野生 栽培 抗性生理 

分 类 号：Q942.4[生物学—植物学]