Streptomyces paludis sp. nov., isolated from an alpine wetland soil

Zhao, Jiarong; Tang, Xinke; Li, Kaiqin; Guo, Yihui; Feng, Meichang; Gao, Jian

doi:10.1099/ijsem.0.003821

Cited by 13 publications

(8 citation statements)

References 38 publications

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“…The tyr + bacterial species indigenous to wetlands have been identified from a geographic and climatic continuum, ranging from high Arctic wetlands in Norway and Russia to tropical wetlands in Malaysia and Thailand ( Figure S7 and Table S2 ). Zhao et al identified a tyr + Streptomyces species within an alpine wetland 158 while others reported the presence of tyr + species in arctic regions. 159 − 161 This is of particular interest since the microbial communities of wetlands located in alpine and arctic regions will be affected most severely by climate change, with potentially severe implications on the stability of organic carbon stored in these ecosystems.…”

Section: Impact Of Bacterial Tyrosinase Enzymes On the Stability Of C...mentioning

confidence: 99%

The Novel Role of Tyrosinase Enzymes in the Storage of Globally Significant Amounts of Carbon in Wetland Ecosystems

Panis

Rompel

2022

Environ. Sci. Technol.

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Over the last millennia, wetlands have been sequestering carbon from the atmosphere via photosynthesis at a higher rate than releasing it and, therefore, have globally accumulated 550 × 10 15 g of carbon, which is equivalent to 73% of the atmospheric carbon pool. The accumulation of organic carbon in wetlands is effectuated by phenolic compounds, which suppress the degradation of soil organic matter by inhibiting the activity of organic-matter-degrading enzymes. The enzymatic removal of phenolic compounds by bacterial tyrosinases has historically been blocked by anoxic conditions in wetland soils, resulting from waterlogging. Bacterial tyrosinases are a subgroup of oxidoreductases that oxidatively remove phenolic compounds, coupled to the reduction of molecular oxygen to water. The biochemical properties of bacterial tyrosinases have been investigated thoroughly in vitro within recent decades, while investigations focused on carbon fluxes in wetlands on a macroscopic level have remained a thriving yet separated research area so far. In the wake of climate change, however, anoxic conditions in wetland soils are threatened by reduced rainfall and prolonged summer drought. This potentially allows tyrosinase enzymes to reduce the concentration of phenolic compounds, which in turn will increase the release of stored carbon back into the atmosphere. To offer compelling evidence for the novel concept that bacterial tyrosinases are among the key enzymes influencing carbon cycling in wetland ecosystems first, bacterial organisms indigenous to wetland ecosystems that harbor a TYR gene within their respective genome ( tyr + ) have been identified, which revealed a phylogenetically diverse community of tyr + bacteria indigenous to wetlands based on genomic sequencing data. Bacterial TYR host organisms covering seven phyla (Acidobacteria, Actinobacteria, Bacteroidetes, Firmicutes, Nitrospirae, Planctomycetes, and Proteobacteria) have been identified within various wetland ecosystems (peatlands, marshes, mangrove forests, bogs, and alkaline soda lakes) which cover a climatic continuum ranging from high arctic to tropic ecosystems. Second, it is demonstrated that (in vitro) bacterial TYR activity is commonly observed at pH values characteristic for wetland ecosystems (ranging from pH 3.5 in peatlands and freshwater swamps to pH 9.0 in soda lakes and freshwater marshes) and toward phenolic compounds naturally present within wetland environments ( p -coumaric acid, gallic acid, protocatechuic acid, p -hydroxybenzoic acid, caffeic acid, catechin, and epicatechin). Third, analyzing the available data confirmed that bacterial host organisms tend to exhibit in vitro growth optima at pH values similar to their respective wetland habitats. Based on these findings, it is concluded that, following increased aeration of previously anoxic wetland soils due to climate change, TYRs are among th...

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Section: Impact Of Bacterial Tyrosinase Enzymes On the Stability Of C...mentioning

confidence: 99%

The Novel Role of Tyrosinase Enzymes in the Storage of Globally Significant Amounts of Carbon in Wetland Ecosystems

Panis

Rompel

2022

Environ. Sci. Technol.

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“…members of the genus Streptomyces are characterized by radial growth and the cell wall diagnostic amino acids ( l , l -diaminopimelic acid), distinguishing it from other genera. Previous research has explored the ginger blast inhibition potential of antagonistic actinomycetes isolated from wetlands [16], medicinal plants [17, 18] and heavy metal-contaminated soils in Hunan Province [19, 20]. Interestingly, two strains of members of the genus Streptomyces , ZYC-3 T and BH-SS-21 T , have been recently isolated from Lilium lancifolium , with up to 98.4% similarity in their 16S rRNA gene sequences [21, 22].…”

Section: Introductionmentioning

confidence: 99%

Streptomyces liliifuscus sp. nov and an anti-ginger plague agent Streptomyces liliiviolaceus sp. nov, two novel species isolated from soil of Lilium lancifolium

Man

Liu

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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Two novel strains of actinobacteria, ZYC-3T and BH-SS-21T, were isolated from Hunan Province, PR China. The fermentation broth of BH-SS-21T inhibited the rapid spread of ginger blast, unlike that of ZYC-3T. The taxonomic characteristics of ZYC-3T and BH-SS-21T were defined using a polyphasic approach. The analysis of the full-length 16S rRNA gene sequence revealed that ZYC-3T and BH-SS-21T represented members of the genus Streptomyces . ZYC-3T had less than 98.7% sequence similarities to all species of the genus Streptomyces , while BH-SS-21T exhibited 99.97, 98.95, 98.83, 98.82, 98.75 and less than 98.7% sequence similarities to 'Streptomyces dioscori' A217, Streptomyces ederensis JCM 4958T, Streptomyces glomeroaurantiacus NBRC 15418T, Streptomyces aurantiacus NBRC 13017T, Streptomyces umbrinus JCM 4521T and other species with validly published names in the genus Streptomyces . However, the digital DNA–DNA relatedness and average nucleotide identity values between ZYC-3T, BH-SS-21T, and their closely related strains were significantly lower than the recommended threshold values. Also, phenotypic, chemotaxonomic and genetic features distinguished ZYC-3T and BH-SS-21T from their reference strains. On the basis of their genotypic and phenotypic characteristics, strains ZYC-3T and BH-SS-21T were classified as representing novel species of the genus Streptomyces under the names Streptomyces liliifuscus sp. nov. ZYC-3T (=CICC 25040T=JCM 34560T=MCCC 1K04978T) and Streptomyces liliiviolaceus sp. nov. BH-SS-21T (=MCCC 1K06236T=JCM 34767T), respectively.

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“…In addition, the selective isolation of actinobacteria by suspending the sample in 1.5% phenol for 30 min is a chemical pretreatment used [138] that disrupts the cell wall of other common bacteria and fungi and improves the growth of Streptomyces [94]. Furthermore, treatment of samples by airdrying for a week [121,130,147] or two [129,136] is a commonly used pretreatment method (Table 5). Moreover, different carbon sources (cellulose, glucose, chitin, starch, dextrose, mannitol and proteose) and combined nitrogen-carbon sources (casein, yeast extract, malt extract, tryptone and peptone) have been added to the media for successful isolation of Streptomycetes [128,129,133,136] from soil sediments (see Table 4 and Supplementary Notes on Supplementary Table S1).…”

Section: Rhizosphere Soil Of Wheatmentioning

confidence: 99%

Streptomyces: Still the Biggest Producer of New Natural Secondary Metabolites, a Current Perspective

Donald

Pipite

Subramani

et al. 2022

Microbiology Research

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There is a real consensus that new antibiotics are urgently needed and are the best chance for combating antibiotic resistance. The phylum Actinobacteria is one of the main producers of new antibiotics, with a recent paradigm shift whereby rare actinomycetes have been increasingly targeted as a source of new secondary metabolites for the discovery of new antibiotics. However, this review shows that the genus Streptomyces is still the largest current producer of new and innovative secondary metabolites. Between January 2015 and December 2020, a significantly high number of novel Streptomyces spp. have been isolated from different environments, including extreme environments, symbionts, terrestrial soils, sediments and also from marine environments, mainly from marine invertebrates and marine sediments. This review highlights 135 new species of Streptomyces during this 6-year period with 108 new species of Streptomyces from the terrestrial environment and 27 new species from marine sources. A brief summary of the different pre-treatment methods used for the successful isolation of some of the new species of Streptomyces is also discussed, as well as the biological activities of the isolated secondary metabolites. A total of 279 new secondary metabolites have been recorded from 121 species of Streptomyces which exhibit diverse biological activity. The greatest number of new secondary metabolites originated from the terrestrial-sourced Streptomyces spp.

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Streptomyces paludis sp. nov., isolated from an alpine wetland soil

Cited by 13 publications

References 38 publications

The Novel Role of Tyrosinase Enzymes in the Storage of Globally Significant Amounts of Carbon in Wetland Ecosystems

The Novel Role of Tyrosinase Enzymes in the Storage of Globally Significant Amounts of Carbon in Wetland Ecosystems

Streptomyces liliifuscus sp. nov and an anti-ginger plague agent Streptomyces liliiviolaceus sp. nov, two novel species isolated from soil of Lilium lancifolium

Streptomyces: Still the Biggest Producer of New Natural Secondary Metabolites, a Current Perspective

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