植物花柱运动

Plant Style Movement

花柱运动在姜科(Zingiberaceae)、竹芋科(Marantaceae)、锦葵科(Malvaceae)和西番莲科(Passifloraceae)植物中存在,但它们运动的模式是不同的。姜科植物两种表型的花柱可以同时向相反的方向运动,竹芋科的花柱在触动扳机后发生不可逆转的爆发性运动,锦葵科的花柱运动时分枝向下反卷与花药紧密接触,而西番莲科的花柱运动虽很类似于锦葵科,花柱向花药方向运动,但很少碰触到花药。花柱运动对传粉和交配系统有深刻影响。

Style movement is common in plants of Zingiberaceae, Marantaceae, Malvaceae and Passifloraceae, but their modes of style movement are different. The two phenotypic styles in Zingiberaceae move towards opposite directions at the same time. The styles of Marantaceous plants move rapidly after the trigger was touched. The stylar branches of Malvaceous plants curved downward until its stigmas touch the anthers, while in Passifloraceae, the movement of stylar branches is also downwards, but they rarely touched the anthers. The movement of styles plays important roles in their pollination and mating system.