Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth
Arq. Inst. Biol. (Online)
;
89: e00162021, 2022. ilus, tab, graf
Artículo
en Inglés
| LILACS, VETINDEX
| ID: biblio-1416879
ABSTRACT
Endophytic bacteria Bacillus safensis RS95 and Pseudomonas hibiscicola RS121 were evaluated for their ability to promote the growth of rice seedlings and produce indole-acetic acid (IAA) and siderophores and to solubilize phosphates. 'Guri' rice seeds were immersed in bacterial endophyte cell suspensions (separated and two-strain mixed), as well as in Escherichia coli DH5α, phosphate-buffered saline (PBS) and water treatments (negative controls). Seeds were sown on agar-water in Petri plates placed vertically at an angle of 65°. The ability of plant growth-promoting endophytic bacteria (PGPEB) to produce IAA and siderophores was determined by Salkowski colorimetric and chrome azurol S (CAS) assays, respectively. Mineral phosphate solubilization activity was calculated by inoculating the endophytes onto medium containing insoluble phosphate. PGPEB showed a positive effect on the growth of rice seedlings, causing a mean growth of shoots and primary-roots of 60 and 67%, respectively. Bacterial strains also showed positive traits for IAA and siderophore production, as well as phosphate-solubilization activity
Asunto(s)
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Pseudomonas
/
Oryza
/
Bacillus
/
Sideróforos
/
Endófitos
/
Ácidos Indolacéticos
Idioma:
Inglés
Revista:
Arq. Inst. Biol. (Online)
Año:
2022
Tipo del documento:
Artículo
Institución/País de afiliación:
Biotrop Soluções Biológicas/BR
/
Secretaria da Agricultura, Pecuária e Desenvolvimento Rural/BR
/
Universidade Federal do Rio Grande do Sul/BR
Similares
MEDLINE
...
LILACS
LIS