Color in Our Daily Lives by Deane B. Judd. National Bureau of Standards, Consumer Information Services, 1975. 32 pp; 113 illustr. in color. Price: $1.75 (Obtainable from the Superintendent of Documents, U. S. Government Printing Office, Washington, D.C.).

Kelly, Kenneth L.

doi:10.1002/col.5080030217

“…Cultural characteristics were determined using 14-day-old cultures grown at 30 °C on various agar media as recommended by Shirling and Gottlieb [16] including yeast extract–malt extract agar (ISP 2), oatmeal agar (ISP 3), inorganic salts-starch agar (ISP 4), glycerol–asparagine agar (ISP 5), peptone–yeast extract iron agar (ISP 6), tyrosine agar (ISP 7) and nutrient agar (NA). Colours of the aerial and substrate mycelia and soluble pigment were determined using the NBS/ISCC colour system [36]. Utilization of various carbon sources were determined using standard methods [16].…”

Section: Phenotypic Characteristics and Chemotaxonomymentioning

confidence: 99%

Streptomyces barringtoniae sp. nov., isolated from rhizosphere of plant with antioxidative potential

Wai

¹

,

Luechapudiporn

²

,

Tedsree

³

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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A novel actinomycete strain, JA03T, belonging to the genus Streptomyces , was isolated from the rhizosphere of Barringtonia racemosa (L.) Spreng. It was characterized taxonomically using a polyphasic approach. It grew at 25–37 °C, at pH 5–10 and with 6 % (w/v) NaCl. It contained ll-diaminopimelic acid in the cell-wall peptidoglycan. Ribose and glucose were detected in its whole-cell hydrolysate. The predominant cellular fatty acids were iso-C16 : 0, anteiso-C15 : 0, C16 : 0, iso-C14 : 0 and iso-C15 : 0. Detected polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides, unidentified phospholipids and unidentified amino lipids. Based on the results of 16S rRNA gene sequence analyses, strain JA03T showed highest similarity to Streptomyces filipinensis NBRC 12860T (98.76 %), Streptomyces fodineus TW1S1T (98.69 %) and Streptomyces shenzhennensis 172115T (98.68 %). Strain JA03T has a genome size of 9 092 851 bp with DNA G+C content of 71.28 mol%. The average nucleotide identity (ANI)-blast and ANI-MUMmer values of strain JA03T and related type strains were 79.6–89.2 and 86.7–92.5 %, respectively, and the digital DNA–DNA hybridization values were 27.3–46.4 %. Ethyl acetate extract of JA03T exhibited total phenolic content (33.4±0.6 µg mg−1 gallic acid equivalent), ferric reducing power value (70.8±1.8 µg mg−1 ascorbic acid equivalent) and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity (IC50=67.0±21.1 µg ml−1). Intracellular reactive oxygen species and NO production in RAW264.7 macrophage cells induced by H2O2 and lipopolysaccharide were inhibited with IC50 of 67.40 and 16.95 µg ml−1, respectively. Based on the taxonomic results, it has been concluded that strain JA03T represents a novel species of the genus Streptomyces for which the name Streptomyces barringtoniae sp. nov., is proposed. The type strain is JA03T (=LMG 32415T=TISTR 2999T).

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“…Cultural characteristics were determined using various ISP media, including ISP 2 agar, oatmeal agar (ISP 3), inorganic salts–starch agar (ISP 4), glycerol–asparagine agar (ISP 5), peptone–yeast extract iron agar (ISP 6), tyrosine agar (ISP 7) and nutrient agar (NA) [15]. The colour of aerial masses, substrate mycelia and soluble pigments were determined using The National Bureau of Standards/Inter-Society Colour Council colour chart [27]. Growth at different pH (4.0–11.0, at intervals of 1 pH unit) was observed on ISP 2 broth with pH adjusted by using acetate buffer (pH 4.0–5.0), phosphate buffer (pH 6.0–7.0), Tris–HCl (pH 8.0–9.0) and carbonate–bicarbonate buffer (pH 10.0–11.0).…”

Section: Physiology and Chemotaxonomymentioning

confidence: 99%

Actinomadura parmotrematis sp. nov., isolated from the foliose lichen, Parmotrema praesorediosum (Nyl.) Hale

Somphong

¹

,

Poengsungnoen

²

,

Buaruang

³

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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A novel actinomycete strain PM05-2T was isolated from the lichen Parmotrema praesorediosum (Nyl.) Hale collected from Chaiyaphum Province, Thailand. The taxonomic position of the strain was studied using the polyphasic approach. Based on the morphology and chemotaxonomic properties, strain PM05-2T was identified as a member of the genus Actinomadura . The whole-cell hydrolysate contained meso-diaminopimelic acid, rhamnose, ribose, xylose, madurose, glucose and galactose. The polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannoside, one unidentified phosphoglycolipid, four unidentified phospholipids and one unidentified lipid. The menaquinones were MK-9(H6), MK-9(H4), MK-9(H2), MK-9(H8) and MK-9(H0). The major cellular fatty acids were C16:0 and C18:1 ω9c. Strain PM05-2T showed the highest 16S rRNA gene similarity to Actinomadura hibisca NBRC 15177T (98.58%), Actinomadura kijaniata NBRC 14229T (98.29 %) and Actinomadura namibiensis DSM 44197T (98.14 %). The phylogenetic tree analysis revealed that strain PM05-2T was related to A. hibisca NBRC 15177T, A. kijaniata NBRC 14229T, A. namibiensis DSM 44197T and Actinomadura macrotermitis RB68T. The genomic analysis revealed that average nucleotide identity values based on both blast and MUMmer between strain PM05-2T and the relative type strains ranged from 77.6 to 86.4%. The digital DNA–DNA hybridization values among the strains were lower than the threshold for assigning to the same species. The taxonomic results suggested that strain PM05-2T represented a novel species of the genus Actinomadura for which the name Actinomadura parmotrematis is proposed. The type strain is PM05-2T (=TBRC 15492T=NBRC 115416T).

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“…Endospores were observed by phase contrast microscope (Nikon Eclipse Ni). ISCC-NBS colour charts [24] were used to assess the colony colour. Growth at different temperatures (4, 10, 15, 20, 25, 30, 35, 40, 45, 50 and 55 °C) was tested in LB medium with 3 % (w/v) NaCl and pH 9.0 by incubating the cultures for 48 h and measured the optical density of growth at 660 nm and the sterile LB medium with 3 % (w/v) NaCl and pH 9.0 used as a control.…”

Section: Physiology and Chemotaxonomymentioning

confidence: 99%

Alteribacter keqinensis sp. nov., a moderately halophilic bacterium isolated from a soda lake

Liu

¹

,

Zhang

²

,

Cao

³

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-positive, aerobic, endospore-forming and rod-shaped bacterium (KQ-3T), which grew at 10–45 °C (optimum 35 °C), pH 8.0–10.5 (optimum pH 9.0) and in the presence of 0–16 % (w/v) NaCl (optimum 3.0 %), was isolated from a soda lake and identified as representing a novel species using a polyphasic taxonomic approach. Strain KQ-3T was catalase-positive, oxidase-negative and non-motile. Phylogenetic analysis based on 16S rRNA gene sequence affiliated KQ-3T to the genus Alteribacter and showed the highest similarities to Alteribacter natronophilus M30T (97.90 %), Alteribacter aurantiacus K1-5T (97.84 %) and Alteribacter populi FJAT-45347T (97.22 %). Digital DNA–DNA hybridization and average nucleotide identity analyses revealed that KQ-3T displayed 21.4 and 72.81% genomic DNA relatedness with the most closely related strain, A. natronophilus M30T, respectively. KQ-3T contained all of the conserved signature indels that are specific for members of the genus Alteribacter . The DNA G+C content was 45.03 mol%. The cell-wall peptidoglycan contained meso-diaminopimelic acid and the polar lipids consisted of phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and one unidentified phospholipid. The predominant menaquinone was MK-7 (100%) and the major fatty acids (>10 %) comprised anteiso-C15 : 0, iso-C15 : 0 and iso-C16 : 0. Based on the data from the current polyphasic studies, KQ-3T represents a novel species of the genus Alteribacter , for which the name Alteribacter keqinensis sp. nov. is proposed. The type strain is KQ-3T (=ACCC 61799T=KCTC 33933T).

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Color in Our Daily Lives by Deane B. Judd. National Bureau of Standards, Consumer Information Services, 1975. 32 pp; 113 illustr. in color. Price: $1.75 (Obtainable from the Superintendent of Documents, U. S. Government Printing Office, Washington, D.C.).

Cited by 44 publications

References 0 publications

Streptomyces barringtoniae sp. nov., isolated from rhizosphere of plant with antioxidative potential

Streptomyces barringtoniae sp. nov., isolated from rhizosphere of plant with antioxidative potential

Actinomadura parmotrematis sp. nov., isolated from the foliose lichen, Parmotrema praesorediosum (Nyl.) Hale

Alteribacter keqinensis sp. nov., a moderately halophilic bacterium isolated from a soda lake

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