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Membrane and ion transport properties in cereals under acidic and alkaline stress
Author(s) -
Erdei László,
Bérczi Alajos,
Zsoldos Ferenc
Publication year - 1981
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1981.tb02733.x
Subject(s) - galactolipid , oryza sativa , chemistry , phospholipid , membrane , drought stress , membrane lipids , composition (language) , biochemistry , botany , biology , gene , linguistics , philosophy
The lipid composition of roots of rice ( Oryza sativa L. cv. Dunghan Shali) and wheat ( Triticum aestivum L. cv. GK Szeged) grown at acidic, neutral or alkaline pH were investigated. Wheat maintained stable total lipid, phospholipid and galactolipid levels at extreme pH, whereas in rice the galactolipid level increased with increasing pH of the growth medium. Spectroscopically, wheat lipids showed alterations at alkaline pH, whereas rice lipids did not. Surface potential measurements on lipid monomolecular layers revealed no significant qualitative differences in charged lipids between the two species. The results are discussed in terms of adaptation to extreme pH.