Acid phosphatase involved in phosphate homeostasis in Brassica napus and the functional analysis of BnaPAP10s

文献类型： 外文期刊

第一作者： Zhang, Hao

作者： Zhang, Hao;He, Xuyou;Munyaneza, Venuste;Zhang, Guangzeng;Ye, Xiangsheng;Wang, Chuang;Shi, Lei;Ding, Guangda;Wang, Xu

作者机构：

关键词： Brassica napus; Purple acid phosphatases; Expression profile; BnaPAP10as; Root-associated APase activity; Phosphate homeostasis

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.5； 五年影响因子：6.4 ）

ISSN： 0981-9428

年卷期： 2024 年 208 卷

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收录情况： SCI

摘要： Purple acid phosphatases (PAPs) are involved in activating the rhizosphere's organic phosphorus (P) and promoting P recycling during plant development, especially under the long-term P deficiency conditions in acid soil. However, the function of BnaPAPs in response to P deficiency stress in Brassica napus has rarely been explored. In this study, we found that the acid phosphatase activities (APA) of rapeseed shoot and root increased under P deficienct conditions. Genome-wide identification found that 82 PAP genes were unevenly distributed on 19 chromosomes in B. napus, which could be divided into eight subfamilies. The segmental duplication events were the main driving force for expansion during evolution, and the gene structures and conserved motifs of most members within the same subfamily were highly conservative. Moreover, the expression levels of 37 and 23 different expressed genes were induced by low P in leaf and root, respectively. BnaA09.PAP10a and BnaC09. PAP10a were identified as candidate genes via interaction networks. Significantly, both BnaPAP10a overexpression lines significantly increased root-related APA and total phosphate concentration under P deficiency and ATP supply conditions, thereby improving plant growth and root length. In summary, our results provided a valuable foundation for further study of BnaPAP functions.

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