Screening and evaluation of saline-alkali-tolerant and growth-promoting bacteria / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 1356-1364, 2020.
Artículo
en Chino
| WPRIM
| ID: wpr-826841
ABSTRACT
Salinity is the most important factor for the growth of crops. It is an effective method to alleviate the toxic effect caused by salt stress using saline-alkali-tolerant and growth-promoting bacteria in agriculture. Seven salt-tolerant bacteria were screened from saline-alkali soil, and the abilities of EPS production, alkalinity reduction and IAA production of the selected strains were investigated. A dominant strain DB01 was evaluated. The abilities of EPS production, alkalinity reduction and IAA production of strain DB01 were 0.21 g/g, 8.7% and 8.97 mg/L, respectively. The isolate was identified as Halomonas aquamarina by partial sequencing analysis of its 16S rRNA genes, and had the ability to inhibit the growth of Fusarium oxysporum f. sp., Alternaria solani, Phytophthora sojae and Rhizoctonia cerealis. It also could promote root length and germination rate of wheat seedlings under salt stress. Halomonas aquamarina can provide theoretical basis for the development of soil microbial resources and the application in saline-alkali soil improvement.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Suelo
/
Microbiología del Suelo
/
Bacterias
/
Triticum
/
ARN Ribosómico 16S
/
Química
/
Raíces de Plantas
/
Halomonas
/
Plantones
/
Álcalis
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
/
Estudio de tamizaje
Idioma:
Chino
Revista:
Chinese Journal of Biotechnology
Año:
2020
Tipo del documento:
Artículo
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