Pollen tube incompatibility reaction on the stigma in selfpollinated Sinapis alba L.

Renata Śnieżko, Krystyna Winiarczyk

Abstract


After selfpollination of Sinapis alba L. pollen tubes growth is inhibited on the stigma. The pollen grains germinate 3-4 hours after pollination. The pollen give rise to one or more pollen tubes. They grow along the papillae. In the place of contact between the papilla and pollen tube the pellicula is digested. Then the direction of pollen tube growth changes completely. Pollen tubes grow back on the exine of their own pollen grain, or turn into the air. The pollen tubes growth was inhibited in 6-8 hours after selfpollination. After crosspollination usually there is no incompatibility reaction.

Keywords


Sinapis alba; selfincompatibility; pollen-stigma interaction; pollen tube

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DOI: https://doi.org/10.5586/asbp.1996.017

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Publisher
Polish Botanical Society