自然越冬过程中鹿蹄草膜质过氧化及渗透调节物质含量的变化研究  

Study on Changes of Membrane Peroxidation and Osmoregulation Substances in Pyrola calliantha during Natural Overwintering

作　　者：王延松 白海东 逯锦春 李彦慧[1] WANG Yan-song;BAI Hai-dong;LU Jin-chun(College of Landscape and Tourism,Hebei Agricultural University,Baoding,Hebei 071000;Beijing Garden Design Engineering Co.,Ltd.,Beijing 100012)

机构地区：[1]河北农业大学园林与旅游学院,河北保定071000 [2]北京市园林设计工程有限公司,北京100012

出　　处：《安徽农业科学》2023年第16期101-104,共4页Journal of Anhui Agricultural Sciences

基　　金：十三五国家重点研发计划项目(2020YFD1000700);河北省科技支撑项目(21326802D);河北省林业与草原局科技项目(1809508)。

摘　　要：以鹿蹄草的叶片和根状茎为试验材料,通过测定自然越冬过程中鹿蹄草的MDA含量、保护酶系统与渗透调节物质含量,明确鹿蹄草的耐寒生理机制。结果表明:自然越冬过程中,鹿蹄草的MDA含量及SOD、POD、CAT活性均呈先上升后下降趋势,叶片的细胞保护酶活动较为剧烈,根状茎活动较为稳定;叶片和根状茎中脯氨酸、可溶性蛋白、可溶性糖含量均表现为先上升后下降的变化趋势,各月份中根状茎的脯氨酸、可溶性蛋白含量始终高于叶片中,而叶片中的可溶性糖含量则要高于根状茎。Taking the leaves and rhizomes of Pyrola calliantha as experimental materials,the physiological mechanism of cold resistance of Pyrola calliantha was clarified by measuring the content of MDA,protective enzyme system and osmotic adjustment substances in the natural overwintering process.The results showed that during the natural overwintering process,the MDA content and the activities of SOD,POD and CAT enzymes of Pyrola calliantha increased first and then decreased.The activities of cytoprotective enzymes in leaves were more intense and the activities of rhizomes were more stable;the contents of proline,soluble protein and soluble sugar in leaves and rhizomes showed a trend of increasing first and then decreasing.In each month,the contents of proline and soluble protein in rhizomes were always higher than those in leaves,while the content of soluble sugar in leaves was higher than that in rhizomes.

关 键 词：鹿蹄草 耐寒性 生理指标 根状茎 

分 类 号：S682.19[农业科学—观赏园艺]