AI Article Synopsis
- Intercropping, which is growing two different types of plants together, can help plants get better nutrition and grow more.
- In this study, scientists looked at how peanut and maize plants help each other get iron from the soil, especially focusing on tiny helpers called microbes living around their roots.
- They found that intercropping helps peanuts get more iron, and a special microbe called Pseudomonas releases a substance that helps improve iron nutrition in both peanut and maize plants.
Article Abstract
Intercropping has the potential to improve plant nutrition as well as crop yield. However, the exact mechanism promoting improved nutrient acquisition and the role the rhizosphere microbiome may play in this process remains poorly understood. Here, we use a peanut/maize intercropping system to investigate the role of root-associated microbiota in iron nutrition in these crops, combining microbiome profiling, strain and substance isolation and functional validation. We find that intercropping increases iron nutrition in peanut but not in maize plants and that the microbiota composition changes and converges between the two plants tested in intercropping experiments. We identify a Pseudomonas secreted siderophore, pyoverdine, that improves iron nutrition in glasshouse and field experiments. Our results suggest that the presence of siderophore-secreting Pseudomonas in peanut and maize intercropped plays an important role in iron nutrition. These findings could be used to envision future intercropping practices aiming to improve plant nutrition.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10825131 | PMC |
| http://dx.doi.org/10.1038/s41467-024-45207-0 | DOI Listing |
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