Effect of Salt Stress on Microbiome Structure and Diversity in Chamomile (Matricaria chamomilla L.) Rhizosphere Soil

Chamomile (Matricaria chamomilla L.) is an economically valuable plant with certain salt alkali adaptability. Here, we aim to understand how stress affects both the structure and diversity of soil microbial community root exudates may mediate this response. The results showed that high treatment reduced overall abundance bacteria fungi but did not alter presence or dominant phyla, including Proteobacteria, Acidobacteriota, Ascomycota. Several species belonging Geminicoccaceae, Rokubacteriaces, Funneliformis-sp were found be highly resistant stress, while others sensitive, Xanthobacteraceae, JG30-KF-AS9-sp, Asperellum. Redundancy analysis tended more sensitive ions in soil, SO42−, Ca2+, Na+, exudates, methyl 4-methylbenzoate, δ-selinene. It suggested a relatively stable set phyla increased salt-tolerant their ecological functions related tolerance chamomile stress. will underpin future improvement coastal salinity through altering community.