从植物学的观点来看，光合作用和器官形成是植物生长过程中的两个主要部分。
From botanical point of view, photosynthesis and organogenesis are main functions for plant growth.
花器官发育的分子遗传机制是目前植物发育生物学的研究热点之一。
The molecular mechanism of floral organ development is a hotspot in plant developmental biology researches.
方法：用整体透明法、石蜡制片法和半薄切片法对20种药用金丝桃属植物不同器官进行形态解剖学研究。
Method: Morphological and anatomical study on the organs of 20 medicinal species in Hypericum using tissue clearing, paraffin sectioning and thin sectioning.
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