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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Dichogamy and style curvature avoid self-pollination in Eremurus altaicus
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Dichogamy and style curvature avoid self-pollination in Eremurus altaicus

机译:二条约和风格的曲率避免在Eremurus Altaicus中的自我授粉

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摘要

This paper gives a systematic study of Eremurus altaicus in terms of flowering characteristics, pollinating features, style movement pattern, stigma receptivity and mating system. The result showed that it was protandrous and that the stigma had no receptivity until the end of pollen dispersal. Its style showed a regular movement pattern during the flowering phase. The style was upright, very close to anthers at first; then it quickly curved down 90 degrees from the base just before the dehiscing of anthers, but went back to the former upright state after pollen dispersal of all 6 anthers. From the blossoming to the end of pollen dispersal, the stigma was smooth and dry, and had no receptivity to pollens until the style went back to the upright state with papillae, and mucus appeared. The curving down movement of the style significantly widened the relative distance between the stigma and the dehiscing anthers. Therefore, protandry and style movement are double safeguard mechanisms for avoiding selfing and promoting outcrossing in Eremurus altaicus, which has important significance in its reproduction and evolution potential.
机译:本文在开花特性,授粉特征,风格运动模式,耻辱应接收和配合系统方面提供了对Ereemurus Altaicus的系统研究。结果表明,它是不产生的,并且耻辱没有接受直到花粉分散的结束。其风格在开花阶段显示了常规运动模式。风格是直立的,首先非常靠近花药;然后它迅速从底座弯曲90度,然后在花药的裂缝之前,但在所有6个花树的花粉分散后回到前直立状态。从开花到花粉分散的结束时,耻辱顺畅干燥,并且没有接受,直到风格回到乳头的直立状态,粘液出现。风格的弯曲流动显着扩大了耻辱和裂缝的波特属之间的相对距离。因此,质量和风格运动是双重保障机制,以避免自行生化和促进Ereemurus Altaicus的交叉,这在其繁殖和演化潜力方面具有重要意义。

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