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. 2025 Aug 19;16:1595554. doi: 10.3389/fpls.2025.1595554

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Copyright © 2025 Zhang, Pan, Qi, Bai and Han.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Diagram showing gene clusters from three species: *Microbacterium* sp. I2, *Microbacterium* sp. K2, and *Arthrobacter* sp. R4. Labeled A to E, the clusters include phosphate solubilization, siderophore production, IAA production, Acc gene, and nitrogen fixation. Arrows represent genes, with sizes indicated in kilobases. — Gene clusters related to promoting plant growth.