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Chapter 1,601

Galactose inhibition of auxin-induced growth of mono- and dicotyledonous plants

Yamamoto, R.; Inouhe, M.; Masuda, Y.

Plant Physiology 86(4): 1223-1227

1988


ISSN/ISBN: 0032-0889
PMID: 16666058
DOI: 10.1104/pp.86.4.1223
Accession: 001600925

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Galactose (10 mM) inhibited IAA-induced cell elongation of oat coleoptiles but not that of Vigna angularis stems. Galactose decreased the level of UDP-glucose in oat coleoptiles but not in V. angularis hypocotyls. Glucose-1-phosphate uridyltransferase activity, in a crude extract from oat coleoptiles, was competitively inhibited by galactose-1-phosphate, but the enzyme from V. angularis was not.

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