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Mostrando ítems 21-30 de 505
Differences in stomatal and pollen grain dimensions and pollen viability between Paspalum rawitscheri populations
(Universidade Federal de Santa Maria, 2022)
Studies on the reproductive biology of Melastomataceae in "cerrado" vegetation
(Springer-verlag WienViennaAustria, 1998)
Pollen aquaporins: The solute factor
(Frontiers Media S.A., 2016-11)
In the recent years, the biophysical properties and presumed physiological role of aquaporins (AQPs) have been expanded to specialized cells where water and solute exchange are crucial traits. Complex but unique processes ...
Soluble carbohydrates content in tomato pollen and its variations along and between blooming periods
(Elsevier Science, 2010-05)
The soluble carbohydrates content in the mature (starchless) pollen of the tomato (Solanum lycopersicum L.) cv. Platense was studied at several moments of the blooming period in two consecutive years. The aim of the analysis ...
Early F-actin disorganization may be signaling vacuole disruption in incompatible pollen tubes of Nicotiana alata
(Landes Bioscience, 2014-10)
Self-incompatibility (SI) systems appeared early in plant evolution as an effective mechanism to promote outcrossing and avoid inbreeding depression. These systems prevent self-fertilization by the recognition and rejection ...
Inter-Conversion of carbohydrate reserves from pollen maturation to rehydration in a chili pepper
(Scientific Research Publishing, 2013-06)
Carbohydrate metabolism is critical for male fertility. Carbohydrate reserves (soluble sugars and starch) were quantified in three advanced stages of pollen development, from the final maturation to rehydration, in a chili ...
Development and cytology of pollen in Dahlstedtia Malme (Leguminosae : Papilionoideae)
(Elsevier B.V., 2002-04-01)
Microsporogenesis, chromosome number, meiotic behaviour and meiotic index were investigated in Dahlstedtia pinnata and D. pentaphylla, two legume species occurring largely in Brazil, in order to ascertain whether the pollen ...
Development and cytology of pollen in Dahlstedtia Malme (Leguminosae : Papilionoideae)
(Elsevier B.V., 2002-04-01)
Microsporogenesis, chromosome number, meiotic behaviour and meiotic index were investigated in Dahlstedtia pinnata and D. pentaphylla, two legume species occurring largely in Brazil, in order to ascertain whether the pollen ...