Halogeometricum borinquense gen. nov., sp. nov., a novel halophilic archaeon from Puerto Rico

Montalvo‐Rodríguez, Rafael; Vreeland, Russell H.; Oren, Aharon; Kessel, Martin; Betancourt, Carlos; López‐Garriga, Juan

doi:10.1099/00207713-48-4-1305

Cited by 113 publications

(67 citation statements)

References 34 publications

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“…Furthermore, the different cell shapes (rods, cocci and tetrads), pleomorphism and cell organization, depending on different environmental stimuli, as well as the predominance of cocci and coccobacilli on agar plates (of basal medium plus acetate as carbon and energy sources) were characteristic of strain 40 T . Variations in cell shape for the same species have been described for some members of the family Halobacteriaceae (Grant & Larsen, 1989 ;Montalvo-Rodrı! guez et al, 1998 ;Wainø et al, 2000), although the changes we observed in strain 40 T have not been reported previously.…”

Section: Dna-dna Hybridizationmentioning

confidence: 97%

“…rhabdus, Natrialba, Natrinema, Natronobacterium, Natronococcus, Natronorubrum and Natronomonas (Grant & Larsen, 1989 ;Tindall, 1992 ;Kamekura & Dyall-Smith, 1995 ;McGenity & Grant, 1995 ;Oren et al, 1995 ;Kamekura et al, 1997 ;McGenity et al, 1998 ;Montalvo-Rodrı! guez et al, 1998 ;Xu et al, 1999 ;Ventosa et al, 1999 ;Wainø et al, 2000).…”

Section: F F Hezayen and Othersmentioning

confidence: 99%

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Transfer of Natrialba asiatica B1T to Natrialba taiwanensis sp. nov. and description of Natrialba aegyptiaca sp. nov., a novel extremely halophilic, aerobic, non-pigmented member of the Archaea from Egypt that produces extracellular poly(glutamic acid).

Hezayen¹,

Rehm²,

Tindall³

et al. 2001

International Journal of Systematic and Evolutionary Microbiology

129

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Transfer of Natrialba asiatica B1T to Natrialba taiwanensis sp. nov. and description of Natrialba aegyptiaca sp. nov., a novel extremely halophilic, aerobic, non-pigmented member of the Archaea from Egypt that produces extracellular poly(glutamic acid) T is the ability to produce an extracellular polymer, which was found to be composed predominantly of glutamic acid (85 % w/w), representing poly(glutamic acid), carbohydrates (125 % w/w) and unidentified compounds (25 % w/w). Among the Archaea, production of an extracellular polysaccharide has been described for some members of the genera Haloferax and Haloarcula.

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Section: Dna-dna Hybridizationmentioning

confidence: 97%

Section: F F Hezayen and Othersmentioning

confidence: 99%

Transfer of Natrialba asiatica B1T to Natrialba taiwanensis sp. nov. and description of Natrialba aegyptiaca sp. nov., a novel extremely halophilic, aerobic, non-pigmented member of the Archaea from Egypt that produces extracellular poly(glutamic acid).

Hezayen¹,

Rehm²,

Tindall³

et al. 2001

International Journal of Systematic and Evolutionary Microbiology

129

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“…Differential characteristics between strain BZ256 T and closely related genera within the order Halobacteriales Taxa: 1, strain BZ256 T ; 2, Halogeometricum; 3, Halobaculum; 4, Haloquadratum; 5, Halorubrum; 6, Haloferax; 7, Halococcus. Data for reference genera are from Burns et al (2007), Castillo et al (2006c), Cui et al (2006), Goh et al (2006), Grant et al (2001), Montalvo-Rodriguez et al (1998), Oren et al (1995) and Xu et al (2007). +, Positive; 2, negative; +/2, variable; NR, not reported.…”

mentioning

confidence: 99%

Halosarcina pallida gen. nov., sp. nov., a halophilic archaeon from a low-salt, sulfide-rich spring

Savage

Krumholz

Oren

et al. 2008

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

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Halosarcina pallida gen. nov., sp. nov., a halophilic archaeon from a low-salt, sulfide-rich spring A novel halophilic archaeon, strain BZ256 T , was isolated from Zodletone Spring, a sulfide-and sulfur-rich spring in south-western Oklahoma, USA. Cells were non-motile, non-flagellated cocci that divided along two axes, resulting in the formation of sarcina-like clusters. Strain BZ256 T grew at salt concentrations ranging from 1.3 to 4.3 M NaCl, with optimum growth at approximately 3.4 M, and required at least 1 mM Mg 2+ for growth. The pH range for growth was 5.0 to at least 8.5, and the temperature range for growth was 25-45 6C. The two diether phospholipids that are typical of members of the order Halobacteriales, namely phosphatidylglycerol and phosphatidylglycerol phosphate methyl ester, were present in strain BZ256 T , as were two glycolipids chromatographically identical to S-DGD-1 and DGD-1. The 16S rRNA gene sequence of strain BZ256 T showed 96.8 % similarity to that of the type strain of Halogeometricum borinquense, the closest recognized species within the order Halobacteriales. The DNA G+C content of strain BZ256 T was 65.4 mol%. Microscopic, physiological, biochemical and phylogenetic comparisons between strain BZ256 T and recognized genera of extremely halophilic archaea suggest that this strain represents a member of a novel genus and species within the family Halobacteriaceae, for which the name Halosarcina pallida gen. nov., sp. nov. is proposed. The type strain of Halosarcina pallida is BZ256 T (5KCTC 4017 T 5JCM 14848 T ).Members of the family Halobacteriaceae, the single family recognized within the order Halobacteriales, have long been identified as the most abundant micro-organisms in hypersaline environments (Oren, 1994). At the time of writing, the family Halobacteriaceae comprised 25 recognized genera and 101 recognized species. Recently, the extent of the family has been undergoing rapid expansion, with the description (as of June 2007) of five new genera and 20 novel species since 2006. This expansion has been due not only to the identification of novel taxa isolated from well-known hypersaline environments, such as the genera Halovivax, Halostagnicola, Haloplanus and Haloquadratum (Castillo et al., 2006a, b;Bardavid et al., 2007;Burns et al., 2007), but also to the recognition that members of the Halobacteriales can grow within saline microniches in non-saline environments at relatively low salt concentrations (Elshahed et al., 2004a;Savage et al., 2007). In addition, recent studies have reported the isolation of novel halobacterial strains (Purdy et al., 2004;Fukushima et al., 2007) or the detection of novel Halobacteriales-affiliated 16S rRNA gene sequences from moderate-to low-salinity systems (Munson et al., 1997;Takai et al., 2001;Walsh et al., 2005). These studies have shown that the order Halobacteriales is more diverse than previously believed. In the present study, we report on the isolation and characterization of strain BZ256 T from a sulfur-and sulfide-rich spring in south-...

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“…Therefore, strain XH-65 T represents a novel species, for which the name Haloterrigena salina sp. nov. is proposed, with the type strain XH-65 T (5CGMCC 1.6203 T 5JCM 13891 T ).Extremely halophilic archaea, members of the Halobacteriaceae, have been isolated from various hypersaline environments and are classified into 26 genera (Tindall et al, 1984;Torreblanca et al, 1986;McGenity & Grant, 1995;Oren et al, 1995Oren et al, , 2002Kamekura & Dyall-Smith, 1995; Kamekura et al, 1997;McGenity et al, 1998;Montalvo-Rodriguez et al, 1998;Ventosa et al, 1999;Xu et al, 1999;Wainø et al, 2000; Grant, 2001a, b;Hezayen et al, 2002;Vreeland et al, 2002, Itoh et al, 2005 Xue et al, 2005; Castillo et al, 2006a, b;Savage et al, 2007;Burns et al, 2007;Bardavid et al, 2007; Gutiérrez et al, 2007). The genus Haloterrigena was established by Ventosa et al In this paper, we describe a novel strain (XH-65 T ) isolated from Lake Xilinhot, a saline lake in Inner Mongolia, China.…”

mentioning

confidence: 99%

Haloterrigena salina sp. nov., an extremely halophilic archaeon isolated from a salt lake

Gutiérrez

Castillo

Kamekura

et al. 2008

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

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A novel extremely halophilic strain, designated XH-65 T , isolated from the salt lake Xilinhot in Inner Mongolia, PR China, was subjected to a polyphasic taxonomic characterization. Strain XH-65 T is neutrophilic, non-motile and requires at least 2.5 M NaCl for growth, with an optimum at 3.4 M NaCl, and grows at pH 6.0-9.0, with optimum growth at pH 7.5. Strain XH-65 T grows at 25-50 6C, with optimal growth at 37 6C. Magnesium is not required for growth. On the basis of 16S rRNA gene sequence analysis, strain XH-65 T was shown to belong to the genus Haloterrigena and was related to Haloterrigena turkmenica VKM B-1734 T (98.1 % sequence similarity), Haloterrigena saccharevitans AB14 T (96.9 %), Haloterrigena thermotolerans PR5 T (96.3 %), Haloterrigena limicola AX-7 T (95.8 %) and Haloterrigena hispanica FP1 T (95.7 %). DNA-DNA hybridization revealed 37 % relatedness between strain XH-65 T and Htg. turkmenica VKM B-1734 T . The polar lipid composition revealed the presence of phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester and mannose-2,6-disulfate (1A2)-glucose glycerol diether (S 2 -DGD). The results of the DNA-DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain XH-65 T from the six Haloterrigena species with validly published names. Therefore, strain XH-65 T represents a novel species, for which the name Haloterrigena salina sp. nov. is proposed, with the type strain XH-65 T (5CGMCC 1.6203 T 5JCM 13891 T ).Extremely halophilic archaea, members of the Halobacteriaceae, have been isolated from various hypersaline environments and are classified into 26 genera (Tindall et al., 1984;Torreblanca et al., 1986;McGenity & Grant, 1995;Oren et al., 1995Oren et al., , 2002Kamekura & Dyall-Smith, 1995; Kamekura et al., 1997;McGenity et al., 1998;Montalvo-Rodriguez et al., 1998;Ventosa et al., 1999;Xu et al., 1999;Wainø et al., 2000; Grant, 2001a, b;Hezayen et al., 2002;Vreeland et al., 2002, Itoh et al., 2005 Xue et al., 2005; Castillo et al., 2006a, b;Savage et al., 2007;Burns et al., 2007;Bardavid et al., 2007; Gutiérrez et al., 2007). The genus Haloterrigena was established by Ventosa et al. In this paper, we describe a novel strain (XH-65 T ) isolated from Lake Xilinhot, a saline lake in Inner Mongolia, China.Sampling was carried out during an expedition to Lake Xilinhot (43u 559 N 115u 379 E) in September 2003. At the time of sampling, the temperature of the water was 23.6 u C, the pH was 8.5 and the conductivity was 185 mS cm 21 . The isolation medium and methods used for isolation have been described previously (Castillo et al., 2006b). The strain was cultivated in saline medium with 20 % (w/v) total salts. The composition of this medium was (% w/v): NaCl, 16.1; MgCl 2 , 1.4; MgSO 4 , 1.92; CaCl 2 , 0.072; KCl, 0.4; NaHCO 3 , 0.012; NaBr, 0.0052; yeast extract (Difco), 0.5. The pH was adjusted to 7.5 with 1 M KOH. When necessary, solid media were prepared by adding 2.0 (w/v) Bacto-agar (Difco). Strain XH-65 T grew at temperatures in...

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Halogeometricum borinquense gen. nov., sp. nov., a novel halophilic archaeon from Puerto Rico

Cited by 113 publications

References 34 publications

Transfer of Natrialba asiatica B1T to Natrialba taiwanensis sp. nov. and description of Natrialba aegyptiaca sp. nov., a novel extremely halophilic, aerobic, non-pigmented member of the Archaea from Egypt that produces extracellular poly(glutamic acid).

Transfer of Natrialba asiatica B1T to Natrialba taiwanensis sp. nov. and description of Natrialba aegyptiaca sp. nov., a novel extremely halophilic, aerobic, non-pigmented member of the Archaea from Egypt that produces extracellular poly(glutamic acid).

Halosarcina pallida gen. nov., sp. nov., a halophilic archaeon from a low-salt, sulfide-rich spring

Haloterrigena salina sp. nov., an extremely halophilic archaeon isolated from a salt lake

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