Diffusible and volatile compounds produced by an antagonistic Bacillus subtilis strain cause structural deformations in pathogenic fungi in vitro.
An efficient antagonistic strain of Bacillus subtilis, originally isolated from the rhizosphere of established tea bushes, was found to cause structural deformities in six pathogenic fungi under in vitro culture conditions. This effect was attributed to the production of diffusible and volatile antifungal compounds. Out of the selected test fungi four were phytopathogenic, while the remaining two were of clinical importance. The bacterial strain successfully restricted the growth of all test fungi in dual cultures, and induced morphological abnormalities such as mycelial and conidial deviations. The inhibitory effect caused by volatiles was greater than that by diffusible compounds.
Chaurasia
Bhaskar
B
G B Pant Institute of Himalayan Environment and Development Kosi-Katarmal-Almora, 263 643 Uttaranchal, India.
Pandey
Anita
A
Palni
Lok Man S
LM
Trivedi
Pankaj
P
Kumar
Bhavesh
B
Colvin
Niharika
N
D000898:Antibiosis; D001412:Bacillus subtilis / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*; D017077:Culture Media, Conditioned; D004058:Diffusion; D003904:Mitosporic Fungi / Q000166:cytology / Q000254:growth & development / Q000502:physiology*; D013997:Time Factors; D014835:Volatilization
D017077:Culture Media, Conditioned