Effect of High Temperature on Calcium Uptake by Suspension-Cultured Pear Fruit Cells
AUTOR(ES)
Klein, Joshua D.
RESUMO
Uptake of Ca2+ by suspension-cultured pear (Pyrus communis L. cv Passe Crassane) cells and protoplasts was significantly enhanced by exposure to 38°C compared to 25°C. The increased uptake was specific for Ca2+ and was not due to cell wall binding. Tissues pretreated at 38°C showed increased uptake even upon return to 25°C. Treatment with carbonylcyanide m-chlorophenylhydrazone, salicylhydroxamic acid + KCN, or arsenite also increased Ca2+ content of cells. Results are discussed with regard to membrane permeability changes, the cellular control of Ca2+, and heat treatments used to inhibit softening of fruit during postharvest storage.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1056544Documentos Relacionados
- Protein isoprenylation in suspension-cultured tobacco cells.
- Elevation of cytosolic calcium precedes anoxic gene expression in maize suspension-cultured cells.
- Survival of Suspension-cultured Sycamore Cells Cooled to the Temperature of Liquid Nitrogen 1
- Amino Acid Transport in Suspension-cultured Plant Cells: II. CHARACTERIZATION OF l-LEUCINE UPTAKE 1
- Prenylcysteine α-Carboxyl Methyltransferase in Suspension-Cultured Tobacco Cells1
