Cascading Effects of Boron Application Methods on Nutrient Distribution and Metabolite Profiles in Pear Trees

文献类型： 外文期刊

第一作者： Du, Wei

作者： Du, Wei;Fan, Jing;Chen, Qiliang;Zhang, Jingguo;Yang, Xiaoping;Hu, Hongju;Hussain, Syed Bilal;Hu, Hongju

作者机构：

关键词： Boron; Application method; Pear tree; Nutrient content; Metabolite profiles

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.4； 五年影响因子：3.6 ）

ISSN： 0718-9508

年卷期： 2024 年

页码：

收录情况： SCI

摘要： Boron (B) deficiency poses a significant challenge in commercial pear (Pyrus spp.) production, typically addressed through root or foliar supply. However, the impact of these B supply methods on plant nutrition and metabolism in pear trees remains relatively unexplored. This study comprehensively examines three B application treatments: control (no B supply), foliar B supply, and root B supply, with B supplied to pear plants in the form of the stable isotope 10B. Both foliar and root B applications increased B concentration and accumulation in various plant tissues, with significant variations in distribution patterns. Notably, foliar application enhanced B accumulation in scion tissues and roots, challenging the traditional limitations of B transport. Furthermore, significant interactions between B application methods and mineral nutrients, particularly nitrogen (N), phosphorus (P), calcium (Ca), and magnesium (Mg), influenced nutrient content and distribution. Metabolite profiling of leaves revealed substantial changes in amino acids, organic acids, and fatty acids in response to B applications, whether foliar or root, suggesting impacts on amino acid metabolism, carbohydrate metabolism, and plant resistance mechanisms. This study highlights the effectiveness of both foliar and root B application methods for B supplementation in pear trees, potentially enhancing growth and stress adaptation. In practical terms, combining foliar and root B applications offers a comprehensive approach to correct B deficiency in pear.

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