Effect of glycinebetaine on chloroplast ultrastructure, chlorophyll and protein content, and RuBPCO activities in tomato grown under drought or salinity

被引：115
|
作者：
Mäkelä, P [1 ]
Kärkkäinen, J [1 ]
Somersalo, S [1 ]
机构：
[1] Univ Helsinki, Dept Plant Prod, FIN-00014 Helsinki, Finland
来源：
BIOLOGIA PLANTARUM | 2000年 / 43卷 / 03期
关键词：
Lycopersicon esculentum; plastoglobuli; starch granules;
D O I：
10.1023/A:1026712426180
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The effect of foliar-applied glycinebetaine (GB) on chloroplast ultrastructure, the amount of chlorophyll and proteins and ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) activity in stressed tomato leaves were analysed. Initial, and total activity and activation state state of RuBPCO were also measured. RuBPCO activities, chloroplast area, and the number of plastoglobuli remained unaffected, while the relative area of starch granules increased in GB-treated, salt-stressed tomato leaflets. Under drought-stress, the relative area of plastoglobuli increased upon GB application. The primary effect of GB was,however, the increased protein and chlorophyll content.
引用
收藏
页码：471 / 475
页数：5
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