Influence of Turgor Pressure Manipulation on Plasmalemma Transport of HCO3− and OH− in Chara corallina1
AUTOR(ES)
Lucas, William J.
RESUMO
A modified version of the osmotic shock technique was used to investigate HCO3− and OH− transport in the alga Chara corallina. Cell turgor was brought close to zero and then restored. When turgor was reduced to near the plasmolytic point using an osmoticum, little effect was observed on H14CO3− assimilation and OH− transport. However, when turgor was recovered in these cells, there was a large reduction in HCO3− and OH− transport activity. In contrast, when cells were air-dried to zero turgor, and rewetted to restore turgor, no significant effect on OH− transport was observed.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=425938Documentos Relacionados
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