SODIUM AND CHLORIDE-IONS CONTRIBUTE SYNERGISTICALLY TO SALT TOXICITY IN WHEAT

被引：33

作者：

MART, PK

KOEBNER, RMD

机构：

[1] Cereals Research Department, J.I. Centre, Colney, NR4 7UH, Norwich Research Park

来源：

BIOLOGIA PLANTARUM | 1995年 / 37卷 / 02期

关键词：

ALKALI METALS; CHLOROPHYLL FLUORESCENCE; GROWTH; PHOTOSYSTEM; 2; TRITICUM;

D O I：

10.1007/BF02913224

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The effects of supplying excess mineral salts, involving sodium as a cation and a range of counteranions, including chloride, on the growth and photosynthetic capacity of a salt susceptible bread wheat were studied. Plant performance was much more affected by the NaCl treatment than by the same concentration of either of the two component ions. With the exception of K+, other alkali metal chlorides also greatly inhibit plant growth and the electron flow through photosystem 2. The ranking of toxicity of these cations is Li+ > Na+ > K+. The synergistic effect of sodium (and other alkali and alkaline earth metals) and chloride shows that neither of these ions alone is responsible for salt stress induced damage.

引用

页码：265 / 271

页数：7

共 29 条

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