首页|Harnessing the power of microbes:Enhancing soybean growth in an acidic soil through AMF inoculation rather than P-fertilization

Harnessing the power of microbes:Enhancing soybean growth in an acidic soil through AMF inoculation rather than P-fertilization

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The low phosphorus(P)availability of acidic soils severely limits leguminous plant growth and productivity.Improving the soil P nutritional status can be achieved by increasing the P-content through P-fertilization or stimulating the mineralization of organic P via arbuscular mycorrhizal fungi(AMF)application;however,their corresponding impacts on plant and soil microbiome still remain to be explored.Here,we examined the effects of AMF-inoculation and P-fertilization on the growth of soybean with different P-efficiencies,as well as the composition of rhizo-microbiome in an acidic soil.The growth of recipient soybean NY-1001,which has a lower P-efficiency,was not significantly enhanced by AMF-inoculation or P-fertilization.However,the plant biomass of higher P-efficiency transgenic soybean PT6 was significantly increased by 46.74％-65.22％through AMF-inoculation.Although there was no discernible difference in plant biomass between PT6 and NY-1001 in the absence of AMF-inoculation and P-fertilization,PT6 had approximately 1.9-2.5 times the plant biomass of NY-1001 after AMF-inoculation.Therefore,the growth advantage of higher P-efficiency soybean was achieved through the assistance of AMF rather than P-fertilization in available P-deficient acidic soil.Most nitrogen(N)-fixing bacteria and some functional genes related to N-fixation were abundant in endospheric layer,as were the P-solubilizing Pseudomonas plecoglossicida,and annotated P-metabolism genes.These N-fixing and P-solubilizing bacteria were positive correlated with each other.Lastly,the two most abundant phytopathogenic fungi species accumulated in endospheric layer,they exhibited positive correlations with N-fixing bacteria,but displayed negative interactions with the majority of the other dominant non-pathogenic genera with potential antagonistic activity.

Zhongling Wen、Minkai Yang、Aliya Fazal、Hongwei Han、Hongyan Lin、Tongming Yin、Yuelin Zhu、Shouping Yang、Kechang Niu、Shucun Sun、Jinliang Qi、Guihua Lu、Yonghua Yang

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Institute for Plant Molecular Biology,State Key Laboratory of Pharmaceutical Biotechnology,School of Life Sciences,Nanjing University,Nanjing 210023,China

Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing Forestry University,Nanjing 210037,China

School of Life Sciences and Chemical Engineering,Jiangsu Second Normal University,Nanjing 210013,China

State Key Laboratory of Crop Genetics and Germplasm Enhancement,Nanjing Agricultural University,Nanjing 210095,China

Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake,Huaiyin Normal University,Huai'an 223300,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationNatural Science Foundation of Jiangsu Bureau of Science and TechnologyProgram for Changjiang Scholars and Innovative Research Team in University from the Ministry of Education of China

32101383423773272023 T1602992022 M7115622023 M731604BK20230787IRT_14R27

2024

10.1093/hr/uhae067

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(5)