Isolation and identification of potential host probiotic bacteria from Malaysian mahseer, Tor tambroides for aquaculture practices

Main Article Content

MOHAMMOD KAMRUZZAMAN HOSSAIN
SHUMPEI IEHATA
NOORDIYANA MAT NOORDIN
MD. ABDUL KADER
SHARIFAH NOOR EMILIA
YEONG YIK SUNG
AMBOK BOLONG ABOL-MUNAFI

Abstract

Abstract. Hossain MK, Iehata S , Noordin NM, Kader MA, Emilia SN, Sung YY, Abol-Munafi AB. 2022. Isolation and identification of potential host probiotic bacteria from Malaysian mahseer, Tor tambroides for aquaculture practices. Biodiversitas 23: 5423-5430. The digestive tract has been revealed as a reservoir of potential probiotics derived from the host. The goal of this study was to isolate, identify, and characterize putative host-associated probiotic bacteria (HAPs) from the digestive tract of Malaysian mahseer Tor tambroides. To evaluate potential T. tambroides HAPs, in-vitro digestive enzyme activity (such as a cellulolytic, proteolytic, and lipolytic activity) and antibacterial activity against two fish pathogens (Vibrio parahaemolyticus and Aeromonas hydrophila) were utilized. Thirty-seven isolates with digestive enzyme activities were tested for their ability to inhibit pathogenic bacteria growth using an agar well-diffusion assay. Three isolates displayed in-vitro suppression of pathogenic bacteria, with two strains (KT03 and KM07) inhibiting the growth of V. parahaemolyticus and one strain (KT27) suppressing the proliferation of both harmful bacteria (V. parahaemolyticus and A. hydrophila). Strains KT03 and KM07 exhibited the most resemblance to Enterococcus faecalis (strains 2674 and FC11682, respectively) based on 16S rRNA sequences, whereas KT27 had a 97% similarity to Aeromonas sp. A8-29. The study’s findings provide valuable data on the prospective use of these three isolates (KT03, KT27, and KM07) as potential HAPs for better understanding their physiological activities, such as growth and disease resistance on T. tambroides.

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Author Biographies

MOHAMMOD KAMRUZZAMAN HOSSAIN, Higher Institution Centre for Excellence, Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Ph D fellow

Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu

 

SHUMPEI IEHATA, Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Senior Lecturer

Faculty of Fisheries and Food Science,

 

NOORDIYANA MAT NOORDIN, Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Associate Professor

Dr Noor Diyana

Faculty of Fisheries and Food Science

Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

MD. ABDUL KADER, Alternative Aquatech. Victoria 3029, Australia

Chief Executive Officer (CEO)

Alternative Aquaculture, Melbourne, VIC3030, Australia

 

SHARIFAH NOOR EMILIA, Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Senior Lecturer

Faculty of Fisheries and Food Science,

Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

 

YEONG YIK SUNG, Institute of Marine Biotechnology, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Professor and Director

Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia,

 

AMBOK BOLONG ABOL-MUNAFI, Higher Institution Centre for Excellence, Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu. 21030 Kuala Nerus, Terengganu, Malaysia

Professor and Former Director

 

Institute of Tropical Aquaculture and Fisheries, Higher Institution Center of Excellence (HICoE)' Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

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