<prompt> Optimal percentage of NaCl for V cholerae -1234  <response>: Ans. is a i.e., 1 VIBRIO CHOLERAEo MorphologyGram negativeBacilliNon capsulatedComma shapedS-shaped or spiral form may be seen.Arranged in parallel rows - Fish in stream appearance.Motile by polar flegellum - Darting type motility.Actively motile vibrios suggest a Swarm of gnatso Culture characteristicStrongly aerobic obligate aerobeGrowth is better in alkaline medium pH 6-4-9.605-l Nacl is required for optimal growth.MaConkeys agar - Initial colourless colonies, later become reddish due to late lactose fermentation.Blood agar - Initially sorrounded by a zone of greening, which later become clear due to hemodigestion.In gelatin stab culture, infundibuliform funnelshaped or napiform turnip shaped liquefaction occur.Remembero While 0-5-1 NaCl is required for optimal growth, 6 or above NaCl inhibits the growth. 