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Título : Calcium in electron-dense globoids during pollen grain maturation in Chlorophytum elatum R.Br.
Autor : Butowt, R., Rodríguez García, María I., Alché Ramírez, Juan de Dios, Gorska-Brylass, A.
Palabras clave : Calcium (pollen germination)
Chloro-phytum (pollen maturation)
Globoid (electron dense)
Phytate metabolism
Pollen grain maturation
Fecha de publicación : 1997
Editor: Springer
Resumen: The localization, elemental composition and quantitative changes in insoluble, electron-dense globoids observed in the course of pollen grain development in Chlorophytum elatum R.Br. have been investigated. During pollen maturation, small electron-dense globoids were only found within larger electron-light vesicles in the cytoplasm of the vegetative cell. The number and diameter of the electron-dense globoids increased during pollen grain maturation, and decreased after pollen germination. By energy-dispersive X-ray microanalysis, the presence of calcium, magnesium and phosphorus was detected in these globoids. The results are discussed in the light of previous findings with regard to phytate metabolism and the role of calcium in pollen germination.
Descripción : 9 páginas, 16 figuras.-- The original publication is available at
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ISSN: 0032-0935
DOI: 10.1007/s004250050208
Citación : Planta 203(4): 413-421 (1997)
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