Isolamento e caracterização de bactérias halotolerantes provenientes de solos do município Remedios, Cuba

Palavras-chave: taxonomia bacteriana, caracterização funcional, tolerância à salinidade

Resumo

O isolamento de bactérias halotolerantes representa uma estratégia para mitigar a salinização do solo e favorecer a adaptação das culturas. Este estudo teve como objetivo identificar bactérias de solos salinos en Remedios, Cuba, e avaliar seu potencial como promotoras de crescimento vegetal (PGPB). Três cepas bacterianas tolerantes a 200 mM de NaCl foram selecionadas e identificadas como Proteus sp. RM 4.2, Lysinibacillus sp. RM 6.2 e Tenebrionicola sp. RM 4.1. As três cepas apresentaram capacidade de fixar nitrogênio e de produzir sideróforos e enzimas líticas. Em ensaios de inoculação em plantas de tomate, Proteus sp. RM 4.2 promoveu significativamente o crescimento vegetal nos cultivares avaliados, destacando-se como a cepa com maior efeito promotor. Em conjunto, os resultados indicam que as cepas avaliadas apresentam características funcionais associadas à promoção do crescimento vegetal e representam uma alternativa viável para o desenvolvimento de bioinoculantes em solos salinos.

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Publicado
2026-03-05
Como Citar
Ortega-Garcia, M., Ríos-Rocafull, Y., Tejeda-González, G., Zelaya-Molina, L., Chávez-Díaz, I., & Nápoles-García, M. (2026). Isolamento e caracterização de bactérias halotolerantes provenientes de solos do município Remedios, Cuba. Revista Da Faculdade De Agronomia Da Universidade De Zulia, 43(1), e264318. Obtido de http://mail.produccioncientificaluz.org/index.php/agronomia/article/view/45269
Secção
Produção Vegetal