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GrainGenes Reference Report: JPY-158-663

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Reference	JPY-158-663
Title	Changes in the fatty acid unsaturation after hardening in wheat chromosome substitution lines with different cold tolerance
Journal	Journal of Plant Physiology
Year	2001
Volume	158
Pages	663-666
Author	Szalai G Janda T Paldi E Dubacq JP
Abstract	Summary: Two wheat (Triticum aestivum L.) varieties, Cheyenne (Ch, winter wheat with excellent frost tolerance) and Chinese Spring (CS, spring wheat with weak frost tolerance), and chromosome substitution lines (CS/Ch 5A, CS/Ch 5D, CS/Ch 7A) created from Cheyenne and Chinese Spring were used to study the effect of chromosome substitutions on the membrane lipid composition in the leaves and crowns before and after cold hardening. The percentage of fatty acid unsaturation in phosphatidylethanolamine was greater in the crown of hardened Cheyenne than in Chinese Spring. The value of CS/Ch 5A was similar to Cheyenne and that of CS/Ch 5D to Chinese Spring, while the value of CS/Ch 7A was in between those of Cheyenne and Chinese Spring. A smaller difference was found between the unsaturation level in the phosphatidylcholine from Cheyenne and Chinese Spring after hardening, while the value obtained for the substitution line CS/Ch 7A was similar to Cheyenne. The percentage decrease in the trans-delta3-hexadecenoic acid content was found to be correlated with the frost tolerance of the wheat genotypes
Keyword	[ Hide all but 1 of 32 ] 5a acid cheyenne chinese chinese spring chromosome chromosome substitution cold cold hardening cold tolerance composition crown fatty fatty acid frost tolerance genotype line lipid lipid-composition membrane phosphatidylcholine seedling spring spring wheat substitution substitution lines tolerance triticum triticum aestivum wheat chromosome substitution lines winter winter wheat

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