ArticlePlant cell reports2026
Psychrotolerant antarctic Mokoshia mucilaginosa and Mokoshia rubra enhance salt Stress tolerance in Nicotiana tabacum via photosynthetic stabilization and antioxidant regulation.
Article in Plant cell reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
key messageAntarctic Mokoshia mucilaginosa and Mokoshia rubra are associated with improved salinity tolerance in Nicotiana tabacum through coordinated regulation of photosynthetic performance and antioxidant responses, highlighting the potential of polar bacteria as bioinoculants for sustainable agriculture in saline and cold-affected ecosystems. Soil salinity is an escalating global challenge that constrains crop productivity worldwide, with particularly severe impacts in marginal agroecosystems, including those in cold regions. Here, we provide evidence that two psychrotolerant Antarctic bacterial strains, Mokoshia mucilaginosa and Mokoshia rubra, function as plant growth-promoting bioinoculants that alleviate NaCl-induced stress in Nicotiana tabacum. Both strains exhibited key plant growth-promoting traits, including indole-3-acetic acid production, phosphate solubilization, siderophore production, and nitrogen fixation. Under salinity levels of 50-150 mM NaCl, bacterial inoculation was associated with improved plant performance, including enhanced biomass accumulation, improved photosystem II efficiency (Fv/Fm, Φ
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