ArticleBMC plant biology2026
Salt/alkali‑tolerant Streptomyces luteus TRM 45540 improves pepper growth and soil quality in acidic and alkaline soils.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
- Amelioration Effects ofPlants (Basel, Switzerland) · 2026Article
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9 authors.
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Abstract
This study evaluated the potential of the salt-alkali-tolerant actinobacterium Streptomyces luteus TRM 45540, isolated from Lop Nur saline-alkali soil in Xinjiang, to alleviate pH-related iron deficiency and promote pepper growth. We hypothesized that this strain could mobilize and compete for soil iron via siderophore production, thereby benefiting plants under variable-pH conditions. To test this hypothesis, we compared its effects with conventional iron fertilizers (EDDHA-Fe₆, ferrous sulfate) and compound microbial fertilizer on pepper growth, soil physicochemical properties, and rhizosphere microbial communities in acidic (pH 5) and alkaline (pH 7.69) soils. TRM 45540 exhibited good stress tolerance, growing well at 3%-9% NaCl and pH 9-12. In both soil types, it significantly promoted pepper growth: fresh weight was increased by over 44% in acidic soil relative to the control, while root and stem lengths were elevated by 26%-91% in alkaline soil compared with conventional amendment groups. The strain increased the content of indigenous soluble iron in soil, raising soluble iron to 42 mg/kg
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