不同染色体倍性滇韭和多星韭的抗逆性初探  

A Primary Study on the Stress Resistance of the Defferent Ploidy of Allium marei and Allium wallichi

作　　者：史冬燕[1] 陈小兰[2] 

机构地区：[1]菏泽学院生物系,山东菏泽270015 [2]云南大学生命科学院,云南昆明650091

出　　处：《菏泽学院学报》2006年第5期108-111,共4页Journal of Heze University

基　　金：云南省教育厅科学研究基金资助项目(02ZY003);云南大学校级科研项目(2002Q009SM)

摘　　要：以不同染色体倍性的滇韭和多星韭为材料,对其抗逆性进行了比较.结果表明:滇韭和多星韭的二倍体SOD酶与POD酶活性均比四倍体的高,MDA的含量比四倍体的低,而四倍体叶中脯氨酸的含量比二倍体的高.就叶中总氨基酸的组成而言,二倍体和四倍体均以天冬氨酸、谷氨酸、甘氨酸、精氨酸、丙氨酸、脯氨酸、缬氨酸、异亮氨酸、亮氨酸、苯丙氨酸和赖氨酸为主要组分,但各氨基酸的含量也有一定的差异.这表明不同染色体倍性的滇韭和多星韭可能存在不同的抗逆性机制.The paper deals with the comparison of stress resistance of Allium marei and Allium wallichi in the different ploidy. The results show that the activities of SOD and POD of diploids are higher and the content of MDA is lower than those of their tetraploids. Whereas the Proline content of tetraploids is more than that of diploids. Asp, Glu, Gly,Arg, Ala, Pro,Val, Ile,Leu,Phe and Lys are the chief compositions of amino acid in the leaves, but there is also difference in content of amino acid in some degree. These suggest that there be the different mechanism of stress resistance in Allium marei and Allium wallichi of different polidies.

关 键 词：染色体倍性 抗逆性 滇韭 多星韭 

分 类 号：Q945.78[生物学—植物学]