Carotenoids in a Corynebacterineae, Gordonia terrae AIST-1: carotenoid glucosyl mycoloyl esters.
We isolated a strain of Corynebacterineae from surface seawater from the Inland Sea of Japan. This strain, AIST-1, was determined to be a strain of Gordonia terrae based on its 16S rRNA gene sequence. The colony was red-colored, and the pigments were identified to be carotenoid derivatives. The structures of two major carotenoids were (2'S)-deoxymyxol 1'-glucoside, a dihydroxyl derivative of gamma-carotene with 12 conjugated double bonds, and (2'S)-4-ketodeoxymyxol 1'-glucoside. Their glucosyl acyl esters and mycoloyl esters were also identified. While these carotenoid moieties have been found in only a few other bacteria, the carotenoid mycoloyl esters are novel carotenoid derivatives. The type strain of G. terrae NBRC 10016T also contained the same carotenoids, but the composition of the two carotenoid glucosides was low and the total carotenoid content was less than one tenth of that of strain AIST-1.
Takaichi
Shinichi
S
Department of Biology, Nippon Medical School, Kawasaki, Japan. takaichi@nms.ac.jp
Maoka
Takashi
T
Akimoto
Naoshige
N
Carmona
Marvelisa L
ML
Yamaoka
Yukiho
Y
D002338:Carotenoids / Q000096:biosynthesis / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D004952:Esters / Q000737:chemistry* / Q000378:metabolism*; D005947:Glucose / Q000737:chemistry* / Q000378:metabolism*; D033601:Gordonia Bacterium / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013053:Spectrophotometry
D004952:Esters; D012336:RNA, Ribosomal, 16S; D002338:Carotenoids; D005947:Glucose