芝麻不同组织中矿物质元素分布特征及相关性分析  

Distribution characteristics and correlation analysis of mineral elements in different sesame tissues

作　　者：许方涛 崔向华 盛晨 游均 黎冬华[1] 张艳欣[1] 周瑢[1] 王林海[1] XU Fang-tao;CUI Xiang-hua;SHENG Chen;YOU Jun;LI Dong-hua;ZHANG Yan-xin;ZHOU Rong;WANG Lin-hai(Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan 430062,China;Zhumadian Academy of Agricultural Sciences,Zhumadian 463000,China)

机构地区：[1]中国农业科学院油料作物研究所/农业农村部油料作物生物学与遗传育种重点实验室,湖北武汉430062 [2]驻马店市农业科学院,河南驻马店463000

出　　处：《中国油料作物学报》2023年第5期1028-1033,共6页Chinese Journal of Oil Crop Sciences

基　　金：湖北省农业科技创新项目(2021-620-000-001-035);中央级公益性科研院所基本科研业务费专项(Y2022XK11);农业农村部油料作物生物学与遗传育种重点实验室开放课题(KF2022002)。

摘　　要：为探明芝麻不同组织中矿物质元素含量的分布特征,本研究采用电感耦合等离子发射光谱法对芝麻不同组织中、不同种皮色芝麻籽粒中Ca、Mg、Fe、Cu、Zn等矿物质元素的含量进行测定及分析。结果显示不同芝麻组织中矿物质元素含量水平差异显著,Ca在不同组织中含量相差最高可高达4倍,在叶中平均含量最高,为2151.61 mg/100g,其次为20 d籽粒,平均含量为984.18 mg/100g;Mg在叶和20d发育籽粒中含量较高,平均含量分别为390.23 mg/100g和300.01 mg/100g;Fe在叶中含量相对较高,为19.98 mg/100g;Cu和Zn在芝麻组织中相对其他矿物质含量较低,均小于5.00 mg/100g,以叶片中的Cu的含量最高。不同种皮色的芝麻成熟籽粒中矿物质元素含量结果显示,芝麻籽粒中Ca和Mg含量最高,平均含量分别为1133.64 mg/100g和382.85 mg/100g。褐色芝麻具有最高的Ca、Mg和Cu的平均含量,分别为1342.68 mg/100g、445.95 mg/100g和2.38 mg/100g;黑色芝麻具有最高的Fe含量,为11.77 mg/100g;浅褐色芝麻具有最高的Zn含量,为7.70 mg/100g。在不同组织和成熟籽粒中,Ca和Mg的含量分别具有极显著和显著的正向相关性,Cu和Ca、Mg的含量在不同组织中呈极显著正相关,在成熟籽粒中,Zn和Fe含量呈极显著正相关。明确矿物质元素含量在芝麻不同组织中的分布特征将为芝麻综合开发利用提供理论参考和数据支撑。This study was conducted in order to investigate the distribution characteristics of mineral elements in different sesame tissues.The content of Ca,Mg,Fe,Cu and Zn in different tissues was determined by inductively coupled plasma optical emission spectrometry(ICP-OES).The results showed a significant variation of mineral elements content in the different sesame tissues.The highest average Ca content was in leaves(2151.61 mg/100g),followed by 20 d seeds(984.18 mg/100g).Mg was predominant in leaves and 20 d seeds with an average content of 390.23 mg/100g and 300.01 mg/100g,respectively.The content of Fe in leaves was the highest,with an average of 19.98mg/100g.The Cu and Zn contents were the lowest in different tissues,both less than 5.00 mg/100g,and the highest Cu content in leaves.In mature seeds,Ca and Mg contents were the highest,with an average of 1133.64 mg/100g and 382.85 mg/100g,respectively.Regarding seed coat color,brown sesame seeds exhibited the highest Ca,Mg,and Cu contents with average values of 1342.68 mg/100g,445.95 mg/100g and 2.38 mg/100g,respectively.Black and light brown sesame seeds exhibited the highest content of Fe(11.77 mg/100g)and Zn(7.70 mg/100g),respectively.We observed a significant positive correlation(P<0.01)between the contents of Ca and Mg in both the different tissues and colored seeds.Moreover,a positive correlation was observed between Cu,Ca,and Mg contents in the different tissues and between Zn and Fe contents in mature seeds.Our findings may provide theoretical and technical guidance for sesame comprehensive utilization.

关 键 词：芝麻 组织 矿物质元素 相关性分析 

分 类 号：S565.3[农业科学—作物学]