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Literature DB >> 24550047

[Enzymes of carbohydrate metabolism in nectaries].

Abstract

1. The activity of some important enzymes of carbohydrate metabolism was investigated in several fractions of homogenized tissues of nectaries from Deutzia scabra and Convolvulus sepium in the secretion-phase. Considerable activity was found for the particle-associated hexokinase and the soluble fructokinase, phosphohexoseisomerase, sucrase, UTP-glucose-1-phosphate-uridyltransferase, acid and alkaline phosphatases, and pyrophosphatase. The activity of phosphoglucomutase was smaller, and that of starch-hydrolases and-phosphorylases and of sucrose-synthetase was very weak. 2. The meaning of these results in relation to the metabolism and the secretion of carbohydrates in nectaries is discussed.

Entities: Chemical Species

Year: 1967 PMID： 24550047 DOI： 10.1007/BF00387128

Source DB: PubMed Journal: Planta ISSN： 0032-0935 Impact factor: 4.116

14 in total

1. [Studies on the influence of abscisic acid and gibberellic acid on the activities of some enzymes of carbohydrate metabolism in leaves of Pennisetum typhoides seedlings].

Authors: W Huber; N Sankhla
Journal: Planta Date: 1974-03 Impact factor: 4.116

6. Eco-physiological studies on Indian arid zone plants : III. Effect of sodium chloride and gibberellin on the activity on the enzymes of carbohydrate metabolism in leaves of Pennisetum typhoides.

Authors: W Huber; P N Rustagi; N Sankhla
Journal: Oecologia Date: 1974-03 Impact factor: 3.225

7. [Electron microscopic localization of acid phosphatase in the extrafloral nectary of vicia faba L].

Authors: J Figier
Journal: Planta Date: 1968-03 Impact factor: 4.116

8. [Enzyme activities in the sieve tube sap of Robinia pseudoacacia L. and of other tree species].

Authors: M Kennecke; H Ziegler; M A de Fekete
Journal: Planta Date: 1971-12 Impact factor: 4.116

8 in total

[Enzymes of carbohydrate metabolism in nectaries].

1. [Enzymatic transformation of sugar in nectaries].

2. Hexokinase in higher plants.

3. Effects of salts on DPNH oxidase activity & structure of sweet potato mitochondria.

4. Sugar Accumulation Cycle in Sugar Cane. I. Studies on Enzymes of the Cycle.

5. Enzymatic activities associated with cell wall preparations from corn coleoptiles.

6. Invertase & invertase inhibitor in potato.

7. Invertase in Cell Walls of Plant Tissue Cultures.

8. Separation and properties of potato invertase and invertase inhibitor.

9. Interaction of amyloplasts with enzymes. I. Phosphorylase adsorption on amyloplasts in Vicia faba.

10. Effect of temperature on invertase, invertase inhibitor, and sugars in potato tubers.

1. [Studies on the influence of abscisic acid and gibberellic acid on the activities of some enzymes of carbohydrate metabolism in leaves of Pennisetum typhoides seedlings].

2. [The metabolism of starch : I. The conversion of sucrose into starch in the cotyledons of vicia faba].

3. [The metabolism of starch : II. The conversion of starch into sucrose in the cotyledons of vicia faba].

4. [Enzymes of starch metabolism in root cap cells of Zea mays L].

5. [Enzymes of starch metabolism in the chloroplasts of the bundle sheath and palisade cells of Zea mays].

6. Eco-physiological studies on Indian arid zone plants : III. Effect of sodium chloride and gibberellin on the activity on the enzymes of carbohydrate metabolism in leaves of Pennisetum typhoides.

7. [Electron microscopic localization of acid phosphatase in the extrafloral nectary of vicia faba L].

8. [Enzyme activities in the sieve tube sap of Robinia pseudoacacia L. and of other tree species].