Zobrazeno 1 - 10
of 20
pro vyhledávání: '"C. R. Vonk"'
Autor:
E. Davelaar, C. R. Vonk
Publikováno v:
Progress in Plant Growth Regulation ISBN: 9789401050845
Flower buds of bulbous irises are especially susceptible to bud blast 14 days before flowering. Bud blast susceptibility, during stem and flower bud development, occurs when plants are grown under low light conditions. Under these conditions peduncle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e0faf9d8ced4ef7b2e1d826098e635d
https://doi.org/10.1007/978-94-011-2458-4_74
https://doi.org/10.1007/978-94-011-2458-4_74
Autor:
C. R. Vonk, W. M. J. Van Gelder
Publikováno v:
Potato Research. 23:427-434
Samples of coagulable protein, from tubers of 34 varieties ofSolanum tuberosum, were analysed for amino acids. The coagulable protein was rich in most of the essential amino acids. The essential amino acid index ranged from 86 to 93. Methionine was t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f7ad246aaf13fd211a24013f4727472
https://doi.org/10.1007/bf02356258
https://doi.org/10.1007/bf02356258
Autor:
C. R. Vonk
Publikováno v:
Physiologia Plantarum. 46:235-240
The origin of cytokinins in the exudate of Yucca inflorescences has been studied. A decrease in nucleotides of both isopenlenyladenine and zeatin was observed after removal of leaves as measured over a three day period. Removal of roots and the great
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c89c07dead1968eeaff157ba4dc98f
https://doi.org/10.1111/j.1399-3054.1979.tb06528.x
https://doi.org/10.1111/j.1399-3054.1979.tb06528.x
Publikováno v:
Plant and Soil. 42:601-618
When barley seedlings were transplanted into media containing either nitrate, ammonium, or urea their protein and free glutamate content increased during the first few hours. Following the commencement of active growth both the ammonium and urea assi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd43c31c5dd17c01feac06cb04de329f
https://doi.org/10.1007/bf00009946
https://doi.org/10.1007/bf00009946
Autor:
C. R. Vonk, T. Mae
Publikováno v:
Acta Botanica Neerlandica. 23:321-331
SUMMARY In the winter period with prevailing low light intensities and short days, the forcing of Iris “Wedgwood” can easily result in flower bud abortion (bud blast). Consequently a high proportion of plants fail to produce flowers. To elucidate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cb4ea7dd14a7729cbecb3490bb65c67
https://doi.org/10.1111/j.1438-8677.1974.tb00947.x
https://doi.org/10.1111/j.1438-8677.1974.tb00947.x
Publikováno v:
Plant Growth Regulation. 8:263-276
It is shown that in bulbous Iris zeatin originates from a nucleotide. This nucleotide is probably zeatin-allylic-phosphate, in which a phosphate group is attached to the isoprenoid side-chain of zeatin. The formation of zeatin-allylic-phosphate from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adea892708b6544ac1403c0671e0d954
https://doi.org/10.1007/bf00025396
https://doi.org/10.1007/bf00025396
Autor:
C. R. Vonk
Publikováno v:
Acta Botanica Neerlandica. 25:153-166
SUMMARY The metabolism of zeatin-8-14C in detached inflorescence stalks of Yucca flaccida has been studied. The compound has been fed either through the xylem or has been added directly to phloem exudate. The results strongly indicate that after upta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33d87b3a592d1c33c659ae4cdaa4cfe6
https://doi.org/10.1111/j.1438-8677.1976.tb01065.x
https://doi.org/10.1111/j.1438-8677.1976.tb01065.x
Autor:
C. R. Vonk
Publikováno v:
Physiologia Plantarum. 44:161-166
The metabolism of isopentenyl adenine, Δ-isopentenyl pyrophosphate, DL-mevalonic acid and adenine in detached inflorescence stalks of Yucca has been studied using radioactive tracer techniques. Xylem feeding of detached stalks with Δ-isopentenyl py
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c5a74d5b6c9986b21a7c9f0225ed80c
https://doi.org/10.1111/j.1399-3054.1978.tb08612.x
https://doi.org/10.1111/j.1399-3054.1978.tb08612.x
Autor:
C. R. Vonk
Publikováno v:
Acta Botanica Neerlandica. 23:541-548
SUMMARY Phloem exudate of Yucca was analysed for cytokinin activity. After partition in a water- and butanol-1 fraction, almost no cytokinin activity was found in the butanol phase (cytokinin base and nucleosides). Application of alkaline phosphatase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::809cc83b6faac80db2dd14d792418103
https://doi.org/10.1111/j.1438-8677.1974.tb00968.x
https://doi.org/10.1111/j.1438-8677.1974.tb00968.x
Publikováno v:
Physiologia Plantarum. 43:142-147
The effect of cytokinins was studied on the incorporation of 14C-labelled precursors into the nucleic acid fraction of protoplasts isolated from callus or roots of Brassica campestris. Protoplasts from callus and roots took up 14C-uridine from the in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cee2c25d5fbe57bc29c4e77555e75744
https://doi.org/10.1111/j.1399-3054.1978.tb01582.x
https://doi.org/10.1111/j.1399-3054.1978.tb01582.x