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- Title
Pathogenicity of Aeromonas hydrophila isolated from the Malaysian Sea against coral ( Turbinaria sp.) and sea bass ( Lates calcarifer).
- Authors
Hamid, Rahimi; Ahmad, Asmat; Usup, Gires
- Abstract
A study was carried out to determine the pathogenicity (hemolytic activity) on corals ( Turbinaria sp.) and sea bass ( Lates calcarifer) of Aeromonas hydrophila from water, sediment, and coral. Samples were collected from coastal water and coral reef areas. One hundred and sixty-two isolates were successfully isolated. Out of 162, 95 were from seawater, 49 from sediment, and 18 from coral. Sixteen isolates were picked and identified. Isolates were identified using a conventional biochemical test, the API 20NE kit, and 16S rRNA nucleotide sequences. Hemolytic activity was determined. Out of 16 isolates, 14 isolates were β-hemolytic and two isolates were non-hemolytic. Corals infected with A. hydrophila suffered bleaching. Similar effect was observed for both hemolytic and non-hemolytic isolates. Intramuscular injection of A. hydrophila into sea bass resulted in muscular bleeding and death. Higher infection rates were obtained from hemolytic compared to non-hemolytic strains of A. hydrophila isolates.
- Subjects
AEROMONAS hydrophila; MICROBIAL virulence; CORAL mortality; SEA basses; GIANT perch; BACTERIAL pollution of water; DISEASES
- Publication
Environmental Science & Pollution Research, 2016, Vol 23, Issue 17, p17269
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-016-6655-8