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Interplay between the shoot apical meristem and lateral organs

aBIOTECH 2020年第3期1卷 178-184页

作者： Chunmei Guan Yuling Jiao State Key Laboratory of Plant Genomics and National Center for Plant Gene Research(Beijing) Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Tissues and organs within a living organism are coordinated,but the underlying mechanisms are not well *** shoot apical meristem(SAM)continually produces lateral organs,such as leaves,from its peripheral *** of their close proximity,SAM and lateral organs interact during plant *** lateral organs influence the positions of newly formed organs to determine the *** SAM not only produces lateral organs,but also influences their *** particular,the SAM promotes leaf polarity determination and leaf blade ***,lateral organs help the SAM to maintain homeostasis by restricting stem cell *** advances have started to elucidate how SAM and lateral organs patterning and growth are coordinated in the shoot *** this review,we discuss recent findings on the interaction between SAM and lateral organs during plant *** particular,polar auxin transport appears to be a commonly used coordination mechanism.

关键词： Shoot apical meristem lateral organ Morphogenesis Sussex signal Auxin

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Molecular Mechanisms of Leaf Morphogenesis

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Molecular Plant 2018年第9期11卷 1117-1134页

作者： Fei Du Chunmei Guan Yuling Jiao State Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China College of Life Sciences University of Chinese Academy of Sciences Beijing 100049 China These authors contributed equally to this article

Plants maintain the ability to form lateral appendages throughout their life cycle and form leaves as the principal lateral appendages of the stem. Leaves initiate at the peripheral zone of the shoot apical meristem and then develop into flattened structures. In most plants, the leaf functions as a solar panel, where photosynthesis converts carbon dioxide and water into carbohydrates and oxygen. To produce structures that can optimally fulfill this function, plants precisely control the initiation, shape, and polarity of leaves. Moreover, leaf development is highly flexible but follows common themes with conserved regulatory mechanisms. Leaves may have evolved from lateral branches that are converted into determinate, flattened structures. Many other plant parts, such as floral organs, are considered specialized leaves, and thus leaf development underlies their morphogenesis. Here, we review recent advances in the understanding of how threedimensional leaf forms are established. We focus on how genes, phytohormones, and mechanical properties modulate leaf development, and discuss these factors in the context of leaf initiation, polarity establishment and maintenance, leaf flattening, and intercalary growth.

关键词： leaf lateral organ morphogenesis meristem blastozone shoot

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