Fungal Endophyte Comprehensively Orchestrates Nodulation and Nitrogen Utilization of Legume Crop (Arachis hypogaea L.)
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View abstract on PubMed
Summary
This summary is machine-generated.The fungus Phomopsis liquidambaris enhances peanut nitrogen use efficiency by boosting early nodulation and later rhizosphere nitrogen availability, supporting stable yields with less fertilizer.
Area Of Science
- Agricultural Microbiology
- Plant-Soil Science
- Sustainable Agriculture
Background
- Nitrogen use efficiency (NUE) is critical for high peanut yields and reduced fertilizer input.
- The fungal endophyte Phomopsis liquidambaris's role in peanut nitrogen utilization requires investigation.
Purpose Of The Study
- To investigate the impact of Phomopsis liquidambaris on peanut nitrogen utilization throughout its growth cycle.
- To assess the potential of Phomopsis liquidambaris as a biofertilizer for sustainable peanut production.
Main Methods
- Field pot experiments and a two-year plot trial were conducted.
- Analysis of rhizosphere microbial communities, soil nitrogen forms, and peanut physiological responses to Phomopsis liquidambaris colonization.
Main Results
- Phomopsis liquidambaris suppressed ammonia-oxidizing archaea (AOA) and bacteria (AOB), increasing ammonium availability and enhancing nodulation.
- The fungus enriched Bradyrhizobium sp. and stimulated nodulation activity, promoting peanut-Bradyrhizobium symbiosis.
- In later stages, Phomopsis liquidambaris increased rhizosphere nitrogen availability by reshaping microbial communities, including diazotrophs.
Conclusions
- Phomopsis liquidambaris inoculation maintained peanut yield stability under low nitrogen conditions.
- The fungus enhances early nodulation and late-stage nitrogen availability, offering a microbe-based strategy for sustainable legume production.
- This study presents a promising approach to reduce nitrogen fertilizer application in peanut cultivation.
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