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<p>Seasonal responses can be triggered by photoperiod changes. To explain photoperiodic time measurement, three main models (hourglass, external coincidence, and internal coincidence) have been proposed based on physiological observations in plants and animals. It has been discussed which model fits best to explain each response. Studies in model plants like <i>Arabidopsis</i> and rice suggest their photoperiodic mechanisms incorporate features that fit more than one of these models.</p>

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Choosing which models best explain photoperiodic time measurement mechanisms in plants

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月1日

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  • Takato Imaizumi

摘要

Seasonal responses can be triggered by photoperiod changes. To explain photoperiodic time measurement, three main models (hourglass, external coincidence, and internal coincidence) have been proposed based on physiological observations in plants and animals. It has been discussed which model fits best to explain each response. Studies in model plants like Arabidopsis and rice suggest their photoperiodic mechanisms incorporate features that fit more than one of these models.