GLUTAMATE-DEHYDROGENASE ACTIVITY IN NORMAL AND VITRIFIED PLANTS OF AGAVE-TEQUILANA WEBER PROPAGATED INVITRO

被引:19
|
作者
CASTROCONCHA, L [1 ]
LOYOLAVARGAS, VM [1 ]
CHAN, JL [1 ]
ROBERT, ML [1 ]
机构
[1] CTR INVEST CIENTIF YUCATAN,DEPT BIOQUIM,DIV BIOL VEGETAL,APDO POSTAL 87,CORDEMEX 97310,YUCATAN,MEXICO
关键词
Agave tequilana; gelrite; glutamate dehydrogenase; vitrification; water potential;
D O I
10.1007/BF00043690
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Agave tequilana stem explants were used to produce adventitious shoots under a set of different water potentials induced by different concentrations of gelrite in the medium. At high water potentials all shoots were vitrified; as the medium water potential became more negative the degree of vitrification decreased but the number of shoots per explant also diminished. The enzymes NADH and NAD-GDH (EC. 1.4.1.2) were measured along the water potential gradient. GDH activity was high in the non-vitrified tissues and decreased significantly in the vitrified ones. © 1990 Kluwer Academic Publishers.
引用
收藏
页码:147 / 151
页数:5
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