The Interplay of Nitrogen and Boron in Rapeseed (Brassica napus L.): Implications for Nutrient Uptake, Photosynthesis, and Rhizosphere Ecology
文献类型: 外文期刊
作者: Wang, Youqiang;Zheng, Yanfen;Xu, Fangsen;Zhang, Cheng-Sheng;Wang, Sheliang
作者机构:
关键词: nitrogen;boron;microbes;photosynthesis;seed yield;rapeseed
期刊名称: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN: 0021-8561
年卷期: 2025 年
页码:
收录情况: SCIE(2025版) ; ; EI(2025版)
摘要: Rapeseed is highly sensitive to boron (B) and nitrogen (N) deficiency, yet their interaction effects on rapeseed remain poorly understood. Here, a factorial pot experiment revealed that under N-sufficient conditions, B deficiency severely impaired reproductive growth, photosynthesis, and yield formation, while also reshaping rhizosphere bacterial communities. However, moderate N limitation alleviated these negative effects. Massilia and Sphingomonas were identified as core microbiota responsive to B availability under N-sufficient conditions, correlating positively with B uptake and photosynthetic N use efficiency (PNUE). Shifts in microbial composition were linked to soil pH and available B, whereas reduced PNUE under B deficiency resulted from disrupted N allocation within the photosynthetic apparatus. Balanced N and B supply improved nutrient uptake, microbial stability, and seed yield, underscoring the importance of integrated nutrient management in sustainable rapeseed production.
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