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Harnessing the power of microbes: Enhancing soybean growth in an acidic soil through AMF inoculation rather than P-fertilization.
- Source :
-
Horticulture research [Hortic Res] 2024 Mar 02; Vol. 11 (5), pp. uhae067. Date of Electronic Publication: 2024 Mar 02 (Print Publication: 2024). - Publication Year :
- 2024
-
Abstract
- 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.<br />Competing Interests: This study did not involve endangered species. The authors declared no conflicts of interest.<br /> (© The Author(s) 2024. Published by Oxford University Press on behalf of Nanjing Agricultural University.)
Details
- Language :
- English
- ISSN :
- 2662-6810
- Volume :
- 11
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Horticulture research
- Publication Type :
- Academic Journal
- Accession number :
- 38725460
- Full Text :
- https://doi.org/10.1093/hr/uhae067