Amino acid and glycine betaine accumulation in cold-stressed wheat seedlings

The changes in amino acid and glycine betaine content in response to cold stress (4°) in wheat seedlings were investigated using HPLC and NMR. Glutamine, proline, 4-aminobutyric acid, alanine, aspartic acid, asparagine, glycine, glycine betaine, valine, threonine and isoleucine levels increased whil...

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Published inPhytochemistry (Oxford) Vol. 30; no. 2; pp. 407 - 409
Main Authors Naidu, B.P., Paleg, L.G., Aspinall, D., Jennings, A.C., Jones, G.P.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Ltd 01.01.1991
Elsevier
Subjects
amino acids
Biological and medical sciences
cold stress
Fundamental and applied biological sciences. Psychology
glycine betaine
Gramineae
Metabolism
Nitrogen metabolism
Plant physiology and development
Triticum vulgare
cold stress
Gramineae
Triticum vulgare
glycine betaine
amino acids
Monocotyledones
Cold
Temperature effect
Plant leaf
Glycine
Water potential
Cereal crop
Stress
Aminoacid
Angiospermae
Spermatophyta
Biological accumulation
Triticum aestivum
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Summary:The changes in amino acid and glycine betaine content in response to cold stress (4°) in wheat seedlings were investigated using HPLC and NMR. Glutamine, proline, 4-aminobutyric acid, alanine, aspartic acid, asparagine, glycine, glycine betaine, valine, threonine and isoleucine levels increased while glutamic acid content decreased. These changes were not accompanied by a reduction in leaf water potential. Possible mechanisms of accumulation of these solutes are discussed.
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(91)83693-F