Ca^(2+)胁迫下伞花木和华山松脯氨酸及可溶性蛋白质含量的变化  

Variation of Proline and Soluble Protein Content in Leaves of Eurycorymbus cavalerieian and Pinus armandii under Ca^(2+) Stress

作　　者：冯晓英[1] 胡章平[1] 乙引[1] 

机构地区：[1]贵州师范大学生命科学学院,贵州贵阳550001

出　　处：《贵州农业科学》2010年第9期169-170,175,共3页Guizhou Agricultural Sciences

基　　金：国家自然科学基金"喀斯特森林喜钙植物嗜钙机理及其环境适应性"(30460031);贵州省优秀科技教育人才省长专项资金"喀斯特喜钙植物对钙生环境的适应性研究"[黔省专合字(2008)26];贵州省科技创新人才团队建设项目"贵州省特色植物资源保护与可持续利用科技创新人才团队"[黔科合人才团队(2009)4007]

摘　　要：为了解伞花木和华山松对Ca2+的适应性,筛选贵州喀斯特生境下(土壤含钙较高)适生植物奠定基础,对不同浓度Ca2+胁迫下伞花木和华山松叶片脯氨酸和可溶性蛋白质含量变化进行了检测。结果表明:在Ca2+胁迫下伞花木脯氨酸含量明显增多,而华山松脯氨酸含量变化不大;低浓度的钙可以增加伞花木和华山松可溶性蛋白的含量,高浓度钙处理下伞花木和华山松可溶性蛋白质含量都下降,但华山松可溶性蛋白质含量比伞花木的低。说明,伞花木比华山松更能适应贵州高钙的喀斯特环境。The proline and soluble protein content in leaves of Eurycorymbus cavalerieian and Pinus armandii planted under different Ca2＋ stress were determined to study the adaptability to select suitable plants in Karst habitat of Guizhou province.The results showed that the proline content in leaves of Eurycorymbus cavalerieian increased obviously under Ca2＋ stress,the praline content in leaves of Pinus armandii had no obvious change,the low concentration of Ca2＋ could increase soluble protein content in leaves of Eurycorymbus cavalerieian and Pinus armandii,and the high concentration of Ca2＋ could decrease soluble protein content in leaves of Eurycorymbus cavalerieian and Pinus armandii but the protein content in leaves of Pinus armandii was lower than that of Eurycorymbus cavalerieian,which indicated that Eurycorymbus cavalerieian has higher adaptability to Karst habitat than Pinus armandii.

关 键 词：CA2+ 伞花木 华山松 脯氨酸 可溶性蛋白 

分 类 号：Q24[生物学—细胞生物学]