Isolation and Selection of Bacillus Strains for Inhibiting Kurthia gibsonii: A Novel Approach to Managing Hemorrhagic Disease in Pangasius (Pangasianodon Hypopthalamus) DOI Creative Commons

Le Thi Anh Hong,

Duong Thi Hong Dao,

Pham Thi Minh Ngoc

et al.

BIO Web of Conferences, Journal Year: 2025, Volume and Issue: 172, P. 04007 - 04007

Published: Jan. 1, 2025

Hemorrhagic disease in Pangasius ( Pangasianodon hypophthalmus ) poses a significant challenge to intensive aquaculture, leading economic losses and reduced productivity. This study aimed identify pathogenic bacteria associated with the select beneficial bacterial strains strong antagonistic potential for sustainable management. Through isolation characterization, Kurthia gibsonii was identified as novel pathogen causing hemorrhagic pangasius, confirmed using infection experiments MALDI-TOF mass spectrometry. Additionally, 14 were isolated from sediment fish gut samples, of which eight exhibited inhibitory activity against K. . Among these, two strains, Bacillus velezensis (A2A) subtilis (CL2.1), demonstrated highest effects, inhibition zone diameters 10.8 mm 10.5 mm, respectively. These through analysis comparison NCBI database. The findings highlight biocontrol agents mitigating offering alternative antibiotics.

Language: Английский

Isolation and Selection of Bacillus Strains for Inhibiting Kurthia gibsonii: A Novel Approach to Managing Hemorrhagic Disease in Pangasius (Pangasianodon Hypopthalamus) DOI Creative Commons

Le Thi Anh Hong,

Duong Thi Hong Dao,

Pham Thi Minh Ngoc

et al.

BIO Web of Conferences, Journal Year: 2025, Volume and Issue: 172, P. 04007 - 04007

Published: Jan. 1, 2025

Hemorrhagic disease in Pangasius ( Pangasianodon hypophthalmus ) poses a significant challenge to intensive aquaculture, leading economic losses and reduced productivity. This study aimed identify pathogenic bacteria associated with the select beneficial bacterial strains strong antagonistic potential for sustainable management. Through isolation characterization, Kurthia gibsonii was identified as novel pathogen causing hemorrhagic pangasius, confirmed using infection experiments MALDI-TOF mass spectrometry. Additionally, 14 were isolated from sediment fish gut samples, of which eight exhibited inhibitory activity against K. . Among these, two strains, Bacillus velezensis (A2A) subtilis (CL2.1), demonstrated highest effects, inhibition zone diameters 10.8 mm 10.5 mm, respectively. These through analysis comparison NCBI database. The findings highlight biocontrol agents mitigating offering alternative antibiotics.

Language: Английский

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