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Pollination adaptations of group-by-group stamen movement in a meadow plant with temporal floral closure

Plant Diversity 2021年第4期43卷 308-316页

作者： Aysajan Abdusalam reyilamu maimaitituerxun Halibinuer Hashan Gulzar Abdukirim College of Life and Geographic Sciences Kashi UniversityKashiXinjiang844000China Key Laboratory of Biological Resources and Ecology of Pamirs Plateau in Xinjiang Uygur Autonomous Region Kashi UniversityKashiXinjiang844000China

Floral sexual organ(stamen and pistil)movements are selective adaptations that have different functions in male-female reproduction and the evolution of flowering ***,the significance of stamen movements in the spatialetemporal function and separation of male and female organs has not been experimentally determined in species exhibiting floral temporal *** current study investigated the role of slow stamen(group-by-group)movement in male-female sexual function,and the effect of stamen movement on pollen removal,male-male and male-female interference,and mating patterns of Geranium pratense,a plant with temporal floral *** species uses stamen group-by-group movement and therefore anther-stigma spatialetemporal *** separation(two whorls of stamen and pistil length)was shown to be stronger than temporal *** found that stamen movements to the center of the flower increase pollen removal,and the most common pollinators visited more frequently and for longer durations during the male floral stage than during the female floral *** movements increased both self-pollen deposition rate and sexual interference in *** fruit and seed set of naturally and outcrossed pollinated flowers were more prolific than those of selfpollinated ***-by-group stamen movement,dehiscence of stamens,pistil movement,and male-female spatialetemporal functional separation of *** before floral temporal closure may prevent male-female and stamen-stamen interference and pollen discounting,and may increase pollen removal and cross-pollination.

关键词： Floral structure Male-female interference Pollen removal Self-pollen deposition

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