Light Effects on the Style Curvature and Anther Dehiscence of Alpinia mutica (Zingiberaceae)

doi:10.3724/SP.J.1143.2012.12014

Abstract

Abstract:

We studied the light effects on style curvature and anther dehiscence of Alpinia mutica. The results showed that light did not change the style movement directions of catamorph, neither the anther opening time. The first style curvature of anamorph moved downwards in darkness, and moved upwards in light.Meanwhile, the anther did not dehisce in darkness, but dehisced in light. The second style curvature of anamorph depended on the light condition of first curvature. If kept in darkness all the time after first downward curvature, the styles did not move upwards and the anther did not dehisce. If first curvature occurred in light, the styles curved downwards both in darkness and light conditions. This research indicated that under different light conditions the combinations of style and anther states in two morphs made the stigma untouch the pollen from the same flower and therefore guaranteed the herkogamy and dichogamy. Although the behavior of style and anther in two morphs were similar, the mechanisms that regulated these behavior were different.

Key words: Zingiberaceae, Alpinia, Style curvature, Anther dehiscence, Light

CLC Number:

Q 945

BI Ting-Ju-, ZHOU Hui-Ping-, SU Zhi-Long-, LI Dong-, LI Sun-Yiang-, CUI Xian-Liang-, LUO Yin-Ling. Light Effects on the Style Curvature and Anther Dehiscence of Alpinia mutica (Zingiberaceae)[J]. Plant Diversity, 2012, 34(5): 453-458.

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Light Effects on the Style Curvature and Anther Dehiscence of Alpinia mutica (Zingiberaceae)

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