植物学报2018，Vol.53Issue(2)：212-218,7.DOI:10.11983/CBB17086
类叶升麻(毛茛科)自花传粉机制
Self-pollination Mechanism of Actaea asiatica (Ranunculaceae)
摘要
Abstract
There are two flowering modes in Actaea asiatica (Ranunculaceae).In the first mode,the sepals are caducous and the anthers are physically isolated from the stigmas as in most out-breeding,bisexual species in this genus.The second flowering mode leads to mechanical self-pollination (autogamy).The sepals do not open or fall off from the flower,but are only detached from the floral receptacle.The staminal filaments elongate to push the anthers in between the stigma and the withered sepals.The latter press the dehiscent anthers onto the large stigma,which results in mechanical autogamy.The results of our bagging tests showed that the highest seed set resulted from spontaneous self-pollination in A.asiatica,but no seed set was found as a result of apomixis or anemophily (via air currents).This species is obviously self-compatible and obligate autogamy.关键词
类叶升麻/自花授粉/毛茛科Key words
Actaea asiatica/self-pollination/Ranunculaceae引用本文复制引用
张九东,王琳,隋洁,田先华,任毅..类叶升麻(毛茛科)自花传粉机制[J].植物学报,2018,53(2):212-218,7.基金项目
国家自然科学基金(No.31330007) （No.31330007）
