The Antibacterial Efficacy of a Compound Extracted from Marine Sediment Bacterium Enterococcus Lactis (S-2): A Comparative Analysis Through In-Vitro and In-Silico Assessments.

Background: Marine sediment bacteria have been generating considerable attention lately due to their potential as valuable reservoirs of novel antimicrobial agents.

Aim: In vitro and in silico antibacterial activities of antibacterial compounds isolated from the marine sediment bacterium Enterococcus Lactis (S-2).

Methods: Coastal sediment samples were collected from Rameswaram, Ramnathapuram District, Tamil Nadu, India.

Isolation and Identification of Bioactive Compounds with Antimicrobial Activity from Marine Facultative Anaerobe, .

Introduction: The marine ecosystem contains many microbial species that produce unique, biologically active secondary metabolites with complex chemical structures. We aimed to isolate and identify bioactive compounds with antimicrobial properties produced by a facultative anaerobic strain of Bacillus subtilis (AU-RM-1), isolated from marine sediment.

Methodology: We optimized the AU-RM-1 growth conditions, analyzed its growth kinetics and its phenotypic and genotypic characteristics.

Resistance of pearlspot larvae, Etroplus suratensis, to redspotted grouper nervous necrosis virus by immersion challenge.

Viral nervous necrosis (VNN) affects more than 120 species mostly belonging to the order Perciformes. However, none of the brackishwater species belonging to the family Cichlidae under the order Perciformes are reported to be susceptible. Hence, the present experiment was undertaken to study the susceptibility of the brackishwater cichlid, pearlspot, Etroplus suratensis to NNV.

Silencing and augmentation of IAG hormone transcripts in adult males affects morphotype transformation.

Morphotypic differentiation is the external manifestation of dominance hierarchy in The intermediate morphotype orange claw (OC) male exhibits the highest growth rate and is subordinate in hierarchy to blue claw (BC) male while dominant on small male (SM). The present study was undertaken to examine the specific role of insulin-like androgenic gland () hormone in morphotype differentiation of To achieve this, RNAi mediated knockdown as well as augmentation of transcripts were effected in ∼60 g OC males using plasmid-based constructs pcD-IAG-lh and pcD-IAGorf, respectively. The treatments were administered to animals maintained in isolation as well as in community.

Protection of shrimp Penaeus monodon from WSSV infection using antisense constructs.

White spot syndrome caused by white spot syndrome virus (WSSV) is one of the most threatening diseases of shrimp culture industry. Previous studies have successfully demonstrated the use of DNA- and RNA-based vaccines to protect WSSV infection in shrimp. In the present study, we have explored the protective efficacy of antisense constructs directed against WSSV proteins, VP24, and VP28, thymidylate synthase (TS), and ribonucleotide reductase-2 (RR2) under the control of endogenous shrimp histone-3 (H3) or penaedin (Pn) promoter.