Effect of the Osmotic Environment on Assimilate Transport in Isolated Developing Embryos of Maize (Zea mays) |
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Authors: | WOLSWINKEL P; AMMERLAAN A |
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Institution: | Transport Physiology Research Group, Botanical Laboratory. University of Utrecht Lange Nieuwstaat 106, 3512, PN Utrecht. The Netherlands |
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Abstract: | Embryos obtained from developing kernels of maize (Zea maysL.) were incubated in a bathing medium, to measure the effectof the osmotic environment on the balance between uptake andrelease of assimilates by the embryo. Net efflux of sucroseand amino acids from the embryo decreased with increasing mannitolconcentration in the bathing medium and net uptake of 14C]valine increased with increasing mannitol concentration. Therole of a high osmolality of the seed apoplast in seed developmentis discussed Zea mays, maize, embryo, seed development, assimilate transport, turgor-sensitive transport |
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