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. 2026 Aug 3;6:1872892. doi: 10.3389/fsysb.2026.1872892

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Copyright © 2026 Devi, Chandel, Thakur, Pathania, Chauhan, Simran, Pathak, Katoch, Tyagi, Devi, Bhatt and Thakur.

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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Seven petri dishes containing microbial cultures on agar media are labeled SR2, SR3, SR7, K1III, MC3, MC4, and MC6, showing varying colony morphologies and zones of color change indicative of biochemical activity or microbial growth patterns. — Orange halo formation around bacterial isolates indicated siderophore production on CAS agar.