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AMINO ACID AND AMIDE METABOLISM IN THE HULLS AND SEEDS OF DEVELOPING FRUITS OF GARDEN PEA, PISUM SATIVUM
Author(s) -
MURRAY D. R.,
CORDOVAEDWARDS MARIA
Publication year - 1984
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1984.tb04128.x
Subject(s) - pisum , sativum , biology , embryo , glutamine , botany , horticulture , point of delivery , amino acid , biochemistry , microbiology and biotechnology
S ummary Pea plants ( Pisum sativum L. cv. Melbourne Market), each with a single developing pod, were pulse‐fed with [ l4 C]glutamine supplied through the cut stem. Hull and seed tissues were removed after a suitable interval (usually 24 h) and frozen for later analysis. The fruit received substantial label at all stages analysed (from 12 to 31 d after full blossom). Except at the youngest stage, most of the label recovered from the fruit was present in the seeds. The distribution of label in soluble metabolites of the hull, seedcoats, embryo sac liquid and embryo was determined by paper chromatography and radioautography. The results confirm that glutamine is utilized as a major source of carbon by pea embryos throughout their development.