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    Home > Food News > Food Articles > The study revealed the molecular mechanism of the monthly response to ethylene regulation of flowers

    The study revealed the molecular mechanism of the monthly response to ethylene regulation of flowers

    • Last Update: 2021-02-23
    • Source: Internet
    • Author: User
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    recently, Gao Junping, a professor at the School of Horticulture at The Agricultural University of China, and Ma Men published their latest research paper online in the journal Plant Cells. The study revealed the molecular mechanisms of the monthly response to ethylene regulating the opening of flowers.
    flowers are reproductive organs of plants. Flower opening is a biological process in which petals are expanded to expose males and females, which is essential for pollination and breeding of offspring. Flower opening is also the process of flower ornamental quality formation, which directly determines the economic value of flower products. Therefore, ensuring the correct opening of flowers is always an important part of flower quality control.
    belongs to the genus Rose, is an important flower crop in the world, is widely used as cut flowers, potted flowers and garden flowers, with high economic value. The early work of Gao Junping's team found that ethylene promotes the monthly season petals to turn over, but inhibits petal expansion, and systematically analyzes the mechanism by which ethylene inhibits petal expansion. However, the mechanism by which ethylene induces the outer flipping of petals during the monthly season has not been reported.
    study, the Ma male team found that asymmetric growth on the near and far axis sides of the base of the moon's petals was the main driving force driving the flower petals to turn over and causing the flowers to open. RhEIN3, a transcription factor downstream of the ethylene signal, binds directly to the promoter of the HD-Zip I gene
    , promoting the specific accumulation of transcripts on the near-axis side of the petal base; The expression of APC/C complex sub-base
    promotes endogenetic replication of near-axis side cells in the petal base, causing cell expansion, which eventually leads to asymmetric growth of the petal base, the petals open outwards, and the flowers are completely open.
    findings reveal a signal pathway that responds to ethylene and adjusts the opening of flowers, with the RhPMP1-RhAPC3b module as the core. The results provide a new understanding of the open regulation mechanism of higher plant flowers, and lay a theoretical foundation for the creation of monthly species resource creation and the research and development of flower open quality control technology. (Source: Zhang Qingdan, China Science Journal)
    relevant paper information:
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