Changes in plasma membrane properties of peach tree buds and stands during dormancy

被引：8
作者：
Portrat, K [1 ]
Mathieu, C [1 ]
Motta, C [1 ]
Petel, G [1 ]
机构：
[1] HOP UNIV HOTEL DIEU,BIOCHIM LAB,F-63000 CLERMONT FERRAND,FRANCE
来源：
JOURNAL OF PLANT PHYSIOLOGY | 1995年 / 147卷 / 3-4期
关键词：
Prunus persica L Batsch; apparent energy of activation; bud; dormancy; fluidity; plasma membrane; stand;
D O I：
10.1016/S0176-1617(11)82165-6
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Fluidity changes between PM from buds and stands, isolated from dormant, non-dormant and nondormant with an additive cold period peach trees, were monitored by steady-state fluorescence polarization using the lipophilic probe 1,6-diphenyl 1,3,5-hexatriene. The break of dormancy, induced by low temperatures, appeared to be correlated with an increase of the PM fluidity from buds, which became higher than from stands. The corresponding apparent energies of activation, calculated from the Arrhenius plots, were modified with the break of dormancy. Indeed, energies of activation were different between the two territories from dormant material but appeared very close in non-dormant material. A superimposed cold treatment on non-dormant peach tree triggered an enhancement of the fluidity differences between PM from buds and stands. However, the apparent energies of activation between the two territories were not modified. These results were discussed according to the trophic hypothesis.
引用
收藏
页码：346 / 350
页数：5
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