Isolation and identification of lutein from Lemna paucicostata 381 as an inhibitor of benzoic acid-induced flowering in Lemna paucicostata 151.
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چکیده
منابع مشابه
C14-oxylipin glucosides isolated from Lemna paucicostata.
Oxylipin glucosides (2-4) were isolated from Lemna paucicostata with their structures and absolute configurations elucidated by spectroscopic and chemical methods. Compounds 2-4 were glucosides of C14 oxylipin which were synthesized from alpha-linolenic acid via the 9-lipoxygenase pathway.
متن کاملThreonine Synthase of Lemna paucicostata Hegelm. 6746.
Threonine synthase (TS) was purified approximately 40-fold from Lemna paucicostata, and some of its properties determined by use of a sensitive and specific assay. During the course of its purification, TS was separated from cystathionine gamma-synthase, establishing the separate identity of these enzymes. Compared to cystathionine gamma-synthase, TS is relatively insensitive to irreversible in...
متن کاملAspartokinase of Lemna paucicostata Hegelm. 6746.
A sensitive and specific method was developed for assay of aspartokinase (EC 2.7.2.4) in crude extracts of Lemna paucicostata. Lysine inhibited approximately 93%, and threonine approximately 6%; together, these amino acids inhibited 99%. Inhibition by lysine was synergistically increased by S-adenosylmethionine, which by itself had no effect on activity. Essentially complete inhibition of threo...
متن کاملUptake of Choline and Ethanolamine by Lemna paucicostata Hegelm. 6746.
Lemna paucicostata Hegelm. 6746 possesses specific systems for uptake of choline and ethanolamine. Each is distinct from the six other systems for uptake of organic compounds so far identified in this plant. Both systems show biphasic kinetics, so that uptake by them can be described as the composite result of two Michaelis-Menten processes. Inhibitor studies are reported which indicate the ver...
متن کاملRole of Catecholamines in Promotion of Flowering in a Short-Day Duckweed, Lemna paucicostata 6746.
l-Epinephrine, l-norepinephrine, and l-isoproterenol substantially promote flowering under a photoperiodic regime of 8 hours light and 16 hours darkness in Lemna paucicostata 6746 when grown on the modified Bonner-Devirian medium devoid of ethylenediaminetetraacetic acid. If catecholamines are provided to plants at 10(-4) molar level prior to transferring them to the short-day regime, they not ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1986
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.50.2053