ArticleNature communications2026
Bio-inspired core-shell microcapsules enhance plant salinity tolerance by improving stability and survival of non-spore bacteria.
Article in Nature communications, 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
Non-spore-forming bacteria can enhance crop salinity tolerance via various strategies, but poor viability during storage and field application limits their use. Inspired by the robust structure of spore dormancy, a core-shell microcapsule consisted of sodium alginate, poly (γ-glutamic acid), and chitosan (APC) is proposed. Using Pantoea alhagi NX-11 as a model, we found that APC encapsulation significantly enhanced bacterial survival during room-temperature storage compared to free cells or alginate beads. This protective effect was further confirmed using two other non-spore-forming strains. The survival mechanism was mainly attributed to the APC-induced metabolic dormancy via suppression of the TCA cycle and oxidative phosphorylation pathways. Furthermore, inoculation with APC-encapsulated NX-11 increased dry weight of rice plant by 24.2% under salt stress in greenhouses and increased grain yield by 15.8% in saline fields, attributing to the enhanced root colonization of NX-11. Overall, this bio-inspired encapsulation strategy provides an effective approach for developing robust microbial inoculants to improve crop resilience in saline soils.
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