Dynamics of inorganic ions in microspore and pollen grain during development of the tobacco male gametophyte
| Autor: | D. S. Andreyuk, M. I. Tukeeva, N. P. Matveeva, I. P. Ermakov |
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| Rok vydání: | 2000 |
| Předmět: |
Gametophyte
Potassium food and beverages chemistry.chemical_element Inorganic ions Biology medicine.disease_cause Chloride chemistry.chemical_compound Microspore Nitrate chemistry Pollen Botany medicine sense organs skin and connective tissue diseases Developmental biology Developmental Biology medicine.drug |
| Zdroj: | Russian Journal of Developmental Biology. 31:89-94 |
| ISSN: | 1608-3326 1062-3604 |
| DOI: | 10.1007/bf02758811 |
| Popis: | We studied the dynamics of mobile potassium, chloride, and nitrate ions during development of the microspore and differentiation of the pollen grain inNicotiana tabacum L. by measuring their concentration in aqueous extracts from cells destroyed by freezing-thawing using ion-selective electrodes. Stage-specific changes in the ion content and intracellular concentration in the male gametophyte were found. A relationship of the dynamics of ions to growth processes and changes in metabolic activity during gametophytogenesis has been discussed. The changes in the potassium and chloride ion concentrations have been interpreted as regulatory changes controlling protein synthesis in the pollen grain vegetative cell. |
| Databáze: | OpenAIRE |
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