Halobellus ruber sp. nov., a deep red-pigmented extremely halophilic archaeon isolated from a Korean solar saltern

Author(s):  
Chi Young Hwang ◽  
Eui-Sang Cho ◽  
Deok Jun Yoon ◽  
Myung-Ji Seo
2013 ◽  
Vol 195 (12) ◽  
pp. 799-803 ◽  
Author(s):  
Xing–Xing Qiu ◽  
Mei-Lin Zhao ◽  
Dong Han ◽  
Wen-Jiao Zhang ◽  
Heng-Lin Cui

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Hana Trigui ◽  
Salma Masmoudi ◽  
Céline Brochier-Armanet ◽  
Sami Maalej ◽  
Sam Dukan

An extremely halophilic archaeon, strain ETD6, was isolated from a marine solar saltern in Sfax, Tunisia. Analysis of the 16S rRNA gene sequence showed that the isolate was phylogenetically related to species of the genusHalorubrumamong the familyHalobacteriaceae, with a close relationship toHrr. xinjiangense(99.77% of identity). However, value for DNA-DNA hybridization between strain ETD6 andHrr.xinjiangensewere about 24.5%. The G+C content of the genomic DNA was 65.1 mol% (T(m)). Strain ETD6 grew in 15–35% (w/v) NaCl. The temperature and pH ranges for growth were 20–55°C and 6–9, respectively. Optimal growth occurred at 25% NaCl, 37°C, and pH 7.4. The results of the DNA hybridization againstHrr. xinjiangenseand physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain ETD6 from otherHrr.species. Therefore, strain ETD6 represents a novel species of the genusHalorubrum, for which the nameHrr. sfaxensesp. nov. is proposed. The Genbank EMBL-EBI accession number is GU724599.


2017 ◽  
Vol 67 (11) ◽  
pp. 4456-4461 ◽  
Author(s):  
Han-Bit Hwang ◽  
Ye-Eun Kim ◽  
Hyeon-Woo Koh ◽  
Hye Seon Song ◽  
Seong Woon Roh ◽  
...  

2012 ◽  
Vol 194 (23) ◽  
pp. 6608-6609 ◽  
Author(s):  
Shaoxing Chen ◽  
Chuanming Wang ◽  
Zhiwei Zhao ◽  
Zhu L. Yang

ABSTRACTHalorubrumsp. strain T3, harboring a virus-like element, was isolated from a sample collected from a solar saltern in Yunnan, China. Several strains ofHalorubrumpleomorphic viruses were reported in this genus recently; however, the virus-host interaction in haloarchaea remains unclear. To explore this issue, here we present the genome sequence ofHalorubrumsp. strain T3 (3,168,011 bp, 68.48% G+C content).


2007 ◽  
Vol 57 (10) ◽  
pp. 2204-2206 ◽  
Author(s):  
Heng-Lin Cui ◽  
Ze-Ying Lin ◽  
Ying Dong ◽  
Pei-Jin Zhou ◽  
Shuang-Jiang Liu

An extremely halophilic archaeon, strain Fa-1T, was isolated from a marine solar saltern in Fujian, China. Strain Fa-1T required Mg2+ and at least 2.0 M NaCl for growth. It was able to grow at pH 6.5–9.0 (optimally at pH 7.0–7.5) and at 20–55 °C (optimally at 37–42 °C). The major polar lipids of strain Fa-1T were phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate and a sulfated diglycosyl diether. On the basis of a 16S rRNA gene sequence analysis, strain Fa-1T was closely related to nine species of the genus Halorubrum, showing sequence similarities of 97.4–98.4 %. The G+C content of the DNA of strain Fa-1T is 64.9 mol% (T m). DNA–DNA hybridization values between strain Fa-1T and the most closely related members of the genus Halorubrum were below 51 %. On the basis of the data from this study, strain Fa-1T represents a novel species of the genus Halorubrum, for which the name Halorubrum litoreum sp. nov. is proposed. The type strain is Fa-1T (=CGMCC 1.5336T =JCM 13561T).


2021 ◽  
Vol 68 (1) ◽  
Author(s):  
K. P. Neethu ◽  
K. S. Sobhana ◽  
Keerthi R. Babu ◽  
S. Jasmine ◽  
L. Ranjith ◽  
...  

A carotenoid producing extremely halophilic archaeon designated MS5.1 was isolated out of brine samples from a crystalliser pond of a marine solar saltern in Kanyakumari District, Tamil Nadu, South India. The red pigmented, long rod shaped haloarchaeon was found to be able to grow at temperature range of 20-40°C, salt concentration of 10-35% and pH range of 6 to 9 with optimum conditions for growth being 28°C; 30% salt and pH 7. The archaeal cells were found to be Gram negative and got lysed when placed in distilled water. Analysis of 16S rDNA sequence revealed that the isolate is phylogenetically related to species of the genus Halorubrum under the family Halobacteriaceae, with close relationship to Halorubrum sodomense. Further analyses of the phenotypic and biochemical characteristics of the isolate confirmed the identity of the organism as Halorubrum sodemense. The gene sequence of the strain was deposited in the NCBI GenBank with Accession No. MW332265. Polar lipid characterisation of the strain by thin layer chromatography (TLC) identified the major polar lipids as Phosphatidylglycerol (PG), Phosphatidylglycerol phosphate methyl ester (PGP-Me), Diglycosyl archaeol (DGA) and Sulfated diglycosyl archaeol (S-DGA). The strain was further screened for antibiotic sensitivity and found insensitive to antibiotics that target peptidoglycan layer and found sensitive only to Nitrofurantoin and Rifampicin, which works by inhibiting nucleic acid synthesis. As halophilic archaea are known natural sources of carotenoids, an attempt was made to extract these pigments from the cells and analysed by UV-VIS spectroscopy. Present study characterised the haloarchaeal strain H. sodomense MS5.1 isolated from a coastal solar saltern, optimised the growth conditions and the results clearly indicated that the strain is a potential source of carotenoids and halophilic enzymes.


2016 ◽  
Vol 66 (10) ◽  
pp. 3799-3804 ◽  
Author(s):  
Koji Mori ◽  
Dian Alfian Nurcahyanto ◽  
Hiroko Kawasaki ◽  
Puspita Lisdiyanti ◽  
Yopi ◽  
...  

2010 ◽  
Vol 60 (8) ◽  
pp. 1824-1827 ◽  
Author(s):  
Heng-Lin Cui ◽  
Xia Gao ◽  
Xin-Yi Li ◽  
Xue-Wei Xu ◽  
Yu-Guang Zhou ◽  
...  

An extremely halophilic archaeon, strain RO5-8T, was isolated from a disused marine solar saltern in China. The cells were pleomorphic and flat. In static liquid medium, cells floated to the surface. Strain RO5-8T stained Gram-negative and colonies were pink-pigmented. It was able to grow at 30–50 °C (optimum 40 °C), at 2.6–4.3 M NaCl (optimum 3.1 M NaCl), at 0.03–0.5 M MgCl2 (optimum 0.03 M MgCl2) and at pH 5.5–7.5 (optimum pH 6.0–6.5). Cells lysed in distilled water and the minimal NaCl concentration to prevent cell lysis was 12 % (w/v). The major polar lipids of strain RO5-8T were phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate and one major glycolipid chromatographically identical to the sulfated mannosyl glucosyl diether S-DGD-1. On the basis of 16S rRNA gene sequence analysis, strain RO5-8T was closely related to three strains of Haloplanus natans with similarities of 97.3–97.6 %. The DNA G+C content of strain RO5-8T was 62.1 mol%. The DNA–DNA hybridization value between strain RO5-8T and Haloplanus natans JCM 14081T was 51.6 %. It was concluded that strain RO5-8T represents a novel species of the genus Haloplanus, for which the name Haloplanus vescus sp. nov. is proposed. The type strain is RO5-8T (=CGMCC 1.8712T =JCM 16055T).


2020 ◽  
Vol 171 (2) ◽  
pp. 80-90 ◽  
Author(s):  
Fadoua Ghanmi ◽  
Alyssa Carré-Mlouka ◽  
Zied Zarai ◽  
Hafedh Mejdoub ◽  
Jean Peduzzi ◽  
...  

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