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pro vyhledávání: '"Pieter Wolswinkel"'
Autor:
Pieter Wolswinkel, Susan Goudsblom
Publikováno v:
Management Kinderopvang. 25:30-32
Autor:
Pieter Wolswinkel, A. De Jong
Publikováno v:
Physiologia Plantarum. 94:78-86
The effect of p-chloromercuribenzenesulfonic acid (PCMBS), carbonylcyanide-m-chlorophenylhydrazone (CCCP) and a high apoplastic pH (pH 7.5 compared with pH 5.5) on the release of sugars (sucrose and glucose) and amino acids from attached and detached
Publikováno v:
Journal of Plant Physiology. 140:687-690
Summary This paper discusses whether assimilate transport into seed coats of surgically modified ovules deteriorates over time-spans greater than about 3 h. In experiments with fruits of pea ( Pisum sativum L.), several hours before the start of a pu
Publikováno v:
Journal of Experimental Botany. 43:681-693
After removal of the embryo from developing seeds of Vicia faba L. and Pisum sativum L., the 'empty' ovules were filled with a substitute medium (pH 5-5) and the effect of the osmolality of the medium on K+ and Mg2 + release from the seed coat was ex
Publikováno v:
Journal of Experimental Botany. 43:695-702
The effect of sink strength reduction in developing seeds on vein loading of photoassimilate has been studied in Pisum sativum L. The sink strength was manipulated by means of the open seed coat technique. Sink strength of the operated ovules was con
Autor:
Pieter Wolswinkel
Publikováno v:
Physiologia Plantarum. 42:167-172
By washing out 14C-solutes or K+ from the free space of stem segments of Vicia faba L. and Urtica dioica L., efflux from stem tissues was measured. At 25°C the efflux of 14C or K+ from non-parasitized stem parts was found to be comparable with the p
Autor:
Ankie Ammerlaan, Pieter Wolswinkel
Publikováno v:
Physiologia Plantarum. 61:172-182
Sugar and amino acid transport into empty ovules of Pisum sativum L. cv. Marzia was examined. In fruits containing 4–6 developing seeds, the embryo was removed from four ovules. After this surgical treatment, each empty seed coat was filled with a
Publikováno v:
Physiologia Plantarum. 59:375-386
The process of sugar and amino acid release by the seed coat of Pisum sativum L. cv. Marzia was studied. Prior to measuring the release of solutes by the seed coat of developing ovules, the embryo was removed from each ovule studied. After this surgi
Autor:
Pieter Wolswinkel
Publikováno v:
Journal of Plant Physiology. 120:419-429
Summary Net sucrose and amino acid efflux from excised seed-coat halves and cotyledons of developing seeds of Pisum sativum L. into a bathing medium (pH 5.5) was measured over a period of 5 h, after uptake from a solution containing a mixture of 3 H
Autor:
Ankie Ammerlaan, Pieter Wolswinkel
Publikováno v:
Physiologia Plantarum. 74:262-269
In contrast to the data reported for developing seeds of pea and broad bean, assimilate transport into empty kernels of maize is not reduced by a low osmolality of the substitute medium. Therefore, additional data were collected from representatives