Viability and vigour of ageing pea seeds with various densities
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چکیده
منابع مشابه
Fatty Acid Composition and Mineral Contents of Pea Genotype Seeds
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A second hexokinase (EC 2.7.1.1) was obtained from pea seed (Pisum sativum L. var. Progress No. 9) extracts. The enzyme, termed hexokinase II, had a high affinity (K(m), 48 micromolar) for glucose and a relatively low affinity (K(m), 10 millimolar) for fructose. The K(m) for MgATP was 86 micromolar. Mg(2+) was required for activity, but excess Mg(2+) was inhibitory. MgADP inhibited hexokinase I...
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The work described in this paper was carried out as part of the joint research programme of the Division of Food Preservation, C.S.I.R.O., and of the Botany School, University of Sydney. The authors wish to express their indebtedness to Miss S. K. Harris and Miss N. J. Eames for technical assistance; and to Dr J. R. Vickery, Chief, Division of Food Preservation, and Professor R. L. Crocker, Bot...
متن کاملUridine diphosphoglucose pyrophosphorylase of pea seeds.
and the concentration and type of acceptor amine has been studied. 4. The manometric method has been used to demonstrate that heteropyrithiamine, quinilinothiamine and possibly oxythiamine are thiaminase substrates. 5. The effect of several structural analogues of thiamine on bracken thiaminase has been studied and it is shown that 3-(o-aminobenzyl)-4-methylthiazolium chloride is a powerful but...
متن کاملFructokinase (Fraction IV) of Pea Seeds.
A fructokinase (EC 2.7.1.4) was obtained from pea (Pisum sativum L.) seeds. This enzyme, termed fructokinase (fraction IV), was specific for fructose as substrate and had little activity with glucose or mannose. Excess fructose inhibited the enzyme at the optimum pH (8.2) but not at pH 6.6. MgATP was inhibitory at pH 6.6. The apparent Michaelis-Menten constants at pH 8.2 were 0.057 mm for fruct...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2014
ISSN: 2083-9480
DOI: 10.5586/asbp.1982.045