汞胁迫对花生幼苗茎和叶亚显微结构的影响  

Effects of Mercury Stress on the Submicrostructure of Peanut Seedling Stems and Leaves

作　　者：王刚 周娜娜 武耀廷[2,3] 冯素萍 徐良晔 WANG Gang;ZHOU Nana;WU Yaoting;FENG Suping;XU Liangye(Hainan Tropic Ocean University,College of Ecology and Environment,Hainan Sanya 572022;Hainan Univer-sity,Haikou 570228;Key Laboratory of Tropical Crop Molecular Breeding of Sanya,Sanya 572022;College of Food Science and Engineering,Hainan Tropic Ocean University,Sanya 572022,China)

机构地区：[1]海南热带海洋学院生态环境学院,海南三亚572022 [2]海南大学,海口570228 [3]三亚市热带植物分子育种实验室,海南三亚572022 [4]海南热带海洋学院食品科学与工程学院,海南三亚572022

出　　处：《东北农业科学》2023年第2期60-63,共4页Journal of Northeast Agricultural Sciences

基　　金：海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(2019RC242);三亚市农业科技创新项目(2015KJ12);MARS国际合作项目(1001603967)。

摘　　要：以花生幼苗为材料,透射电子显微镜下观察了0、10、100、1 000、10 000μmol/L浓度的HgCl_(2)对花生幼苗茎和叶亚显微结构的影响。结果表明:当HgCl_(2)浓度为10μmol/L时,茎叶各细胞器不受影响;当HgCl_(2)浓度为100μmol/L时,花生幼苗叶的细胞核、茎叶的叶绿体和线粒体开始出现膜损伤;当HgCl_(2)浓度为1 000μmol/L和10 000μmol/L时,花生幼苗茎和叶细胞膜结构破坏严重,线粒体和叶绿体损伤。随着处理的汞离子浓度的提升,花生幼苗茎叶细胞内各细胞器都呈现出明显的损伤,但耐受性略有不同。The effects of HgCl_(2) concentration of 0,10,100,1000 and 10,000μmol/L on the submicrostructure of peanut seedling stems and leaves of were observed under transmission electron microscope.The results showed that when the HgCl_(2) concentration was 10μmol/L,the organelles of stems and leaves were not affected.When the HgCl_(2) concentration was 100μmol/L,the cell nucleus,chloroplast and mitochondria of stems and leaves began to appear membrane damage.When the HgCl_(2) concentration was 1,000μmol/L and 10,000μmol/L,the membrane structure of stems and leaves cells of peanut seedling was seriously damaged,and the mitochondria and chloroplast were damaged.With the increase of mercury concentration,the organelles in stems and leaves cells of peanut seedlings showed obvious damage,but the tolerance was slightly different.

关 键 词：汞胁迫 花生 亚显微结构 

分 类 号：S565.2[农业科学—作物学]