Abstract
Pollen tubes ofGasteria verrucosa germinate in the stigmatic exudate and penetrate the solid cell walls in the tip of the style. In the direction of the ovary this solid part gradually becomes liquid and the pollen tubes grow in this fluid with an increasing velocity to reach the locule of the ovary. Here papillar cells excrete an exudate. Because of a different composition of this exudate, if compared with the stylar exudate, the pollen tube growth in the ovary is delayed (Willemse & Franssen-Verheijen,1988).
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Literature
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© 1992 Springer-Verlag New York, Inc.
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Willemse, M.T.M., Franssen-Verheijen, M.A.W. (1992). Pollen Tube Growth and Ovule Penetration inGasteria verrucosa (Mill.), H. Duval. In: Ottaviano, E., Gorla, M.S., Mulcahy, D.L., Mulcahy, G.B. (eds) Angiosperm Pollen and Ovules. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2958-2_27
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DOI: https://doi.org/10.1007/978-1-4612-2958-2_27
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