大果木莲种子冷藏初期糖代谢和蛋白质代谢的变化  

The Changes of Sugar and Protein Metabolism in Early Stage of Cold Storage of Manglietia grandis Seed

作　　者：吴玉兰[1] 秦艳玲[1] 李宗艳[1] 

机构地区：[1]西南林业大学园林学院,昆明650224

出　　处：《湖北农业科学》2012年第17期3809-3811,共3页Hubei Agricultural Sciences

基　　金：国家林业局西南地区生物多样性保育实验室基金资助项目(BC2010F02)

摘　　要：研究了大果木莲(Manglietia grandis)种子冷藏初期糖代谢和蛋白质代谢的变化。结果表明,未经冷藏处理的种子总蛋白含量最高,为1.270 mg/g,而可溶性蛋白含量在第42天时最高,为0.385 mg/g;在冷藏的第44天总蛋白含量与可溶性蛋白含量均最低,分别为0.092 mg/g和0.293 mg/g,且两者在0.01水平上显著相关,相关系数为0.893。总糖含量与可溶性糖含量在冷藏初期变化复杂,总糖含量在第41天时最高,为120.020 mg/g;可溶性糖含量在第44天时最高,为25.030 mg/g。在大果木莲种子冷藏初期,种子内蛋白质含量变化较糖含量变化显著,可溶性糖含量与总蛋白含量在0.05水平上显著相关,相关系数为-0.549。This study investigated the changes of sugar and potein metabolism of Manglietia grandis seeds in cold storage.The results showed that the total protein content of seeds without cold storege was the highest,about 1.270 mg/g,and the changing of the soluble protein reached the highest peak with 0.385 mg/g in the 42 nd day;while,in the 44 nd day,total protein and soluble protein contents were down to a minimum,were 0.092 mg/g and 0.293 mg/g respectively,and these two had significant correlation at the 0.01 level,correlation coefficient was 0.893.The contents of total sugar and soluble sugar had complex changes,the total sugar content reached the highest in the 41 nd day with 120.020 mg/g,and the soluble sugar content reached the highest in the 44 nd day with 25.030 mg/g.In the early cold storage of M.grandis seeds,the protein and sugar contents had significant changes,and the soluble sugar content was significantly correlated to the total protein content at the 0.05 level with correlation coefficient was-0.549.

关 键 词：大果木莲(Manglietia grandis) 种子 冷藏 糖代谢 蛋白质代谢 生理后熟 

分 类 号：Q949.747.1[生物学—植物学] Q945.66