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Phosphorus Functional Genes Control Rice Yield via Microbial Biomass Phosphorus and Plant Phosphorus Uptake in a Rice-Oilseed Rape Rotation System Compared with a Rice-Wheat Rotation System

文献类型： 外文期刊

作者： Zhang, Qingyue 1 ; Yu, Weijia 1 ; Li, Min 3 ; Cheng, Wenlong 3 ; Huai, Shengchang 1 ; Jin, Yuwen 1 ; Li, Guihua 1 ; Wu, Ji 3 ; Lu, Changai 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Beijing 100081, Peoples R China

2.Shandong Acad Agr Sci, Inst Crop Germplasm Resources, Jinan 250100, Peoples R China

3.Anhui Acad Agr Sci, Soil & Fertilizer Inst, Key Lab Nutrient Cycling & Arable Land Conservat A, Natl Agr Expt Stn Soil Qual, Hefei 230001, Peoples R China

关键词： rice-oilseed rape rotation; rice-wheat rotation; microbial biomass phosphorus; P functional genes; soil phosphorus bioavailability; rice yield

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 4 期

页码：

收录情况： SCI

摘要： Crop rotation and microbial driving force significantly influence soil phosphorus (P) bioavailability and crop yield. However, differences in underlying microbial mechanisms in rotations remain unclear. We examined rice yield, P uptake, soil and microbial P contents, enzyme activity, and P functional genes over six years (2016-2022) to elucidate microbial mechanisms driving rice yield in rice-wheat (RW) and rice-oilseed rape (RO) rotations. RO significantly increased rice yield and plant P uptake by 9.17% and 20.70%, respectively, compared to RW. Soil total (TP) and available (AP) P contents were significantly lower (4.83% and 18.31%, respectively) under RO than RW, whereas microbial biomass phosphorus (MBP) and acid phosphatase activity (EP) were greater (39.40% and 128.45%, respectively). PICRUSt2 results revealed that RO increased phoA phoB (alkaline phosphatase), phnX (phosphonoacetaldehyde hydrolase [EC:3.11.1.1]), gcd (Quinoprotein glucose dehydrogenase [EC:1.1.5.2]), and ppaC (manganese-dependent inorganic pyrophosphatase) and decreased phnD (phosphonate transport system substrate-binding protein), ugpE (sn-glycerol 3-phosphate transport system permease protein), ugpA (sn-glycerol 3-phosphate transport system permease protein), and phnO ((aminoalkyl)phosphonate N-acetyltransferase [EC:2.3.1.280]) abundance. Random forest analysis showed that ppaC, phnD, gcd, and phnX were important for rice yield and plant P uptake. Partial least squares analysis revealed that RO indirectly increased rice yield by influencing MBP and affecting plant P uptake through P functional genes. Overall, RO improves rice yield and P bioavailability by altering P functional genes (ppaC, phnD, gcd, and phnX), providing new perspectives on crop-microorganism interactions and resource use efficiency.

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