Flavobacterium macrobrachii sp. nov., isolated from a freshwater shrimp culture pond.
A bacterial strain, designated an-8(T), was isolated from a freshwater shrimp culture pond in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain an-8(T) were Gram-reaction-negative, aerobic, rod-shaped and non-motile, formed yellow-pigmented colonies and grew at 15-30 °C (optimum 25 °C), pH 7-8 (optimum pH 8.0) and in 0-1 % (w/v) NaCl (optimum 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain an-8(T) belonged to the genus Flavobacterium and its most closely related neighbours were Flavobacterium terrigena DS-20(T) and Flavobacterium terrae R2A1-13(T) with sequence similarities of 95.1 and 94.9 %, respectively. Strain an-8(T) contained iso-C(15 : 0), summed feature 3 (C(16 : 1)ω6c and/or C(16 : 1)ω7c), iso-C(16 : 0) 3-OH, iso-C(15 : 0) 3-OH, iso-C(17 : 0) 3-OH and iso-C(15 : 1) as the major fatty acids. The major isoprenoid quinone was MK-6. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidyldimethylethanolamine, phosphatidylserine and several unidentified polar lipids. The G+C content of the genomic DNA was 39.8 mol%. On the basis of the phylogenetic and phenotypic data, strain an-8(T) represents a novel species of the genus Flavobacterium, for which the name Flavobacterium macrobrachii sp. nov. is proposed. The type strain is an-8(T) ( = BCRC 17965(T)  = LMG 25203(T)).
Sheu
Shih-Yi
SY
Department of Marine Biotechnology, National Kaohsiung Marine University, 142 Hai-Chuan Road, Nan-Tzu, Kaohsiung City 811, Taiwan ROC.
Chiu
Tzu-Fang
TF
Department of Marine Biotechnology, National Kaohsiung Marine University, 142 Hai-Chuan Road, Nan-Tzu, Kaohsiung City 811, Taiwan ROC.
Young
Chiu-Chung
CC
College of Agriculture and Natural Resources, Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 402, Taiwan ROC.
Arun
A B
AB
Yenepoya Research Center, Yenepoya University, University Road, Deralakatee, Mangalore, Karnataka State, India.
Chen
Wen-Ming
WM
Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Marine University, 142 Hai-Chuan Road, Nan-Tzu, Kaohsiung City 811, Taiwan ROC.
D000332:Aerobiosis; D000818:Animals; D017756:Aquaculture; D001482:Base Composition; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D005417:Flavobacterium / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D005618:Fresh Water; D006863:Hydrogen-Ion Concentration; D008969:Molecular Sequence Data; D033541:Palaemonidae / Q000382:microbiology*; D010743:Phospholipids / Q000032:analysis; D010802:Phylogeny; D010860:Pigments, Biological / Q000378:metabolism; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000378:metabolism; D013624:Taiwan; D013696:Temperature
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D010743:Phospholipids; D010860:Pigments, Biological; D011809:Quinones; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride