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    Home > Food News > Food Articles > Strawberry affects fruit ripening by regulating the ABA pathway

    Strawberry affects fruit ripening by regulating the ABA pathway

    • Last Update: 2021-06-17
    • Source: Internet
    • Author: User
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    Recently, the team of Qin Guozheng, a researcher at the Institute of Botany, Chinese Academy of Sciences, discovered that RNA methylation (m 6 A) modification plays an important role in the regulation of ripening of different types of fruits, but the mechanism of action is different
    .


    In tomato fruit, m .


    The nutrients rich in fruits are an important part of human diet and are indispensable to human health
    .


    The quality of the fruit is gradually formed during the ripening process and is precisely regulated


    According to different ripening mechanisms, fruits can be divided into climacteric types (such as tomatoes, apples, and bananas) and non-climactic types (such as strawberries, grapes, and citrus)
    .


    The plant hormone ethylene plays a key role in the ripening regulation of climacteric fruits, while abscisic acid (ABA) is involved in the ripening regulation of non-climactic fruits


    For this reason, the researchers compared the m6A methyl groups of strawberry fruits at different ripening stages and found that m 6 A modification showed dynamic changes during strawberry fruit ripening
    .


    Similar to tomato fruits, m 6 A modifications in strawberry fruits can be enriched in stop codons and 3'UTR regions, and are negatively correlated with gene expression


    Further research found that m 6 A methyltransferases MTA and MTB positively regulate strawberry fruit ripening, and MTA plays an important role in the m 6 A modification of NCED5, ABAR and AREB1
    .


    It is worth mentioning that in tomato fruit, m 6 A modification can regulate the stability of DNA demethylase gene, while in strawberry fruit, DNA demethylase gene is not regulated by m 6 A, indicating that m6A modification Affect the ripening of tomato and strawberry fruits in different ways



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