Zobrazeno 1 - 10
of 40
pro vyhledávání: '"D. T. Clarkson"'
Autor:
M. W. ter Steege, D. T. Clarkson, Ineke Stulen, Pieter J. C. Kuiper, P. K. Wiersema, W. Vaalburg, A. J. M. Paans
Publikováno v:
Physiologia Plantarum, 103(2), 181-192
The effects of physical manipulation of hydroponically grown plants of spinach (Spinacia oleracea L., cvs Subito and Glares) on nitrate uptake fluxes were studied in a long-term experiment (3 days), and in short-term label experiments (2 h) with N-13
Publikováno v:
Plant and Soil. :139-142
Publikováno v:
Physiologia Plantarum. 82:345-352
Publikováno v:
New Phytologist. 116:647-653
SUMMARY We characterized kinetically the phosphorus (P) transport systems present in the germ-tubes of the vesicular-arbuscular (VA) mycorrhizal fungus, Gigaspora margarita Becker & Hall. Germinated spores of G. margarita were grown without P or with
Rapid disruption of nitrogen metabolism and nitrate transport in spinach plants deprived of sulphate
Publikováno v:
Journal of experimental botany. 52(354)
Hydroponically grown spinach plants were deprived of an external source of sulphate after an initial period when the S-supply was sufficient. The time-course of events following this treatment was monitored. The first responses were found in the upta
Publikováno v:
Journal of experimental botany. 51(342)
It has been shown that N-, P- and S-deficiencies result in major reductions of root hydraulic conductivity (Lpr) which may lead to lowered stomatal conductance, but the relationship between the two conductance changes is not understood. In a variety
Autor:
D. T. Clarkson
Publikováno v:
Annals of Botany. 78:527-528
Autor:
D. T. Clarkson, I. B. Ferguson
Publikováno v:
New Phytologist. 77:11-14
SUMMARY The suberization of the outer cortical cells in the basal zones of maize roots to form a hypodermis reduced the radial movement of phosphate towards the stele. Suberization of these cells appeared to place a far greater restriction on the tra
Autor:
D. T. Clarkson, I. B. Ferguson
Publikováno v:
New Phytologist. 75:69-79
SUMMARY Progressive suberization and thickening of the endodermis along secondary seminal axes of Zea mays had little effect on the radial movement of phosphate into the vascular tissue. In all parts of the root, inhibitors of respiration, and low te
Publikováno v:
Plant, Cell and Environment. 9:535-545
Lolium perenne L. cv. S23 was grown in flowing culture solution, pH 5, in which the concentrations of NH4+, NO3− and K+ were frequently monitored and adjusted to set values. In a pre-experimental period, plants were acclimatized to a regime in whic