Identification of endophytic bacteria BZJN1 and research on biological control of root rot of Atractylodes macrocephala / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 478-483, 2018.
Article
in Zh
| WPRIM
| ID: wpr-771712
Responsible library:
WPRO
ABSTRACT
In this study, an endophytic bacteria strain BZJN1 was isolated from Atractylodes macrocephala, and identified as Bacillus subtilis by physiological and biochemical tests and molecular identification. Strain BZJN1 could inhibit the growth of mycelia of Ceratobasidium sp. significantly, and the inhibition rate was more than 70%. The mycelium growth deformity with bulge as spherical and partially exhaustible in apex or central with microscopic observation. The inhibitory rates under 3% and 6% concentrations of the cell free fermentation were 22.7% and 38.7% expectively. The field test proved that the control efficacy of treatment of 1×10⁸ cfu·mL⁻¹ is 75.27% and 72.37% after 10 and 20 days. All the treatments of strain BZJN1 was able to promote the growth of A. macrocephala, the treatment of 1×10⁸ cfu·mL⁻¹ could able to increase the yield to 14.1%.
Key words
Full text:
1
Database:
WPRIM
Main subject:
Physiology
/
Plant Diseases
/
Bacillus subtilis
/
Basidiomycota
/
Virulence
/
Classification
/
Atractylodes
/
Endophytes
/
Biological Control Agents
/
Microbiology
Type of study:
Diagnostic_studies
Language:
Zh
Journal:
China Journal of Chinese Materia Medica
Year:
2018
Document type:
Article