Psychroserpens

• Main Author: Bowman, John P.
• Format: Other/Unknown Material
• Language: English
• Published: Wiley 2015
• Subjects: Antarc*; Antarctica
• Online Access: http://dx.doi.org/10.1002/9781118960608.gbm00335; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F9781118960608.gbm00335; https://onlinelibrary.wiley.com/doi/pdf/10.1002/9781118960608.gbm00335; https://onlinelibrary.wiley.com/doi/full-xml/10.1002/9781118960608.gbm00335

Psy.chro.ser'pens. Gr. adj. psychros cold; L. masc. or fem. n. serpens serpent; N.L. masc. n. Psychroserpens cold serpent. Bacteroidetes / Flavobacteriia / Flavobacteriales / Flavobacteriaceae / Psychroserpens Cells are flexible rods with rounded ends , 0.5–0.6 × 2–6 µm, occurring singly or in pairs. Cultures also frequently include coiled or roughly helical filamentous cells up to 20 µm in length. Spores, resting cells, and gas vesicles are not present. Nonmotile . Gram‐stain‐negative . Colonies are yellow due to accumulation of carotenoids . Flexirubin pigments are not produced . Strictly aerobic , having an oxidative type of metabolism . Catalase‐positive. Oxidase‐negative. Chemoheterotrophic . Nonagarolytic . Carbohydrates are not utilized , except for glycogen . Acid is not formed from carbohydrates. Seawater salts and yeast extract are required for growth. Psychrophilic . Grows between −2 and 18°C, with optimal growth at 10–12°C and pH 6–8. The major fatty acids are C 15:0 , C 15:0 iso, C 15:0 anteiso, C 15:1 ω10 c iso, C 15:1 ω10 c anteiso, C 16:1 ω11 c iso, C 15:1 ω11 c , C 15:1 ω4 c , and C 16:1 ω5 c . Isolated from saline lakes of Antarctica . DNA G + C content ( mol %): 27–29. Type species : Psychroserpens burtonensis Bowman, McCammon, Brown, Nichols and McMeekin 1997, 674 VP .