首页|Soybean(Glycine max)rhizosphere organic phosphorus recycling relies on acid phosphatase activity and specific phosphorus-mineralizing-related bacteria in phosphate deficient acidic soils

Soybean(Glycine max)rhizosphere organic phosphorus recycling relies on acid phosphatase activity and specific phosphorus-mineralizing-related bacteria in phosphate deficient acidic soils

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  • 国家科技期刊平台
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Bacteria play critical roles in regulating soil phosphorus(P)cycling.The effects of interactions between crops and soil P-availability on bacterial communities and the feedback regulation of soil P cycling by the bacterial community modifications are poorly understood.Here,six soybean(Glycine max)genotypes with differences in P efficiency were cultivated in acidic soils with long-term sufficient or deficient P-fertilizer treatments.The acid phosphatase(AcP)activities,organic-P concentrations and associated bacterial community compositions were determined in bulk and rhizosphere soils.The results showed that both soybean plant P content and the soil AcP activity were negatively correlated with soil organic-P concentration in P-deficient acidic soils.Soil P-availability affected the α-diversity of bacteria in both bulk and rhizosphere soils.However,soybean had a stronger effect on the bacterial community composition,as reflected by the similar biomarker bacteria in the rhizosphere soils in both P-treatments.The relative abundance of biomarker bacteria Proteobacteria was strongly correlated with soil organic-P concentration and AcP activity in low-P treatments.Further high-throughput sequencing of the phoC gene revealed an obvious shift in Proteobacteria groups between bulk soils and rhizosphere soils,which was emphasized by the higher relative abundances of Cupriavidus and Klebsiella,and lower relative abundance of Xanthomonas in rhizosphere soils.Among them,Cupriavidus was the dominant phoC bacterial genus,and it was negatively correlated with the soil organic-P concentration.These findings suggest that soybean growth relies on organic-P mineralization in P-deficient acidic soils,which might be partially achieved by recruiting specific phoC-harboring bacteria,such as Cupriavidus.

organic phosphorusacid phosphatasesoybeanbacterial communityphoC-harboring bacteriarhizosphere

Qianqian Chen、Qian Zhao、Baoxing Xie、Xing Lu、Qi Guo、Guoxuan Liu、Ming Zhou、Jihui Tian、Weiguo Lu、Kang Chen、Jiang Tian、Cuiyue Liang

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Root Biology Center,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510642,China

College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510642,China

Henan Academy of Crops Molecular Breeding,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China

国家重点研发计划Open Competition Program of Ten Major Directions of Agricultural Science and Technology Innovation for the 14th Five-Year PlKey Areas Research and Development Programs of Guangdong Province,ChinaSTIC Grant of ChinaMajor Program of Guangdong Basic and Applied Research,China广东省自然科学基金广东省自然科学基金

2021YFF10005002022SDZG072022B0202060005SGDX202108231035350072019B0303020062021A15150108262020A1515110261

2024

10.1016/j.jia.2023.09.002

农业科学学报(英文)
中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD
影响因子：0.576
ISSN：2095-3119
年,卷(期)：2024.23(5)
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