Micromonospora pelagivivens sp. nov., a new species of the genus Micromonospora isolated from deep-sea sediment in Japan

Intra, Bungonsiri; Panbangred, Watanalai; Inahashi, Yuki; Take, A; Mori, Masayuki; Ōmura, Satoshi; Matsumoto, Atsuko

doi:10.1099/ijsem.0.004136

Cited by 9 publications

(3 citation statements)

References 43 publications

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“…We identi ed the causative agent by molecular and taxonomy techniques. Our strain was clustered in the Actinomycetota order Micromonosporales a member of Micromonosporaceae family and it encompasses more than 105 species (https://lpsn.dsmz.de/genus/ micromonospora), including the recent identify species Micromonospora orduensis [27], Micromonospora deserti [28], Micromonospora craterilacus [29] and Micromonospora pelagivivens [30] .…”

Section: Discussionmentioning

confidence: 99%

Identification and management of a yellow -grains actinomycetoma caused by Micromonospora olivasterospora in Sudan. The First Report

Mhmoud

2024

Preprint

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We describe a case of yellow grains actinomycetoma in the second toe of the left foot of Sudanese female caused by Micromonospora olivasterospora that does not match any known agent of this infection. The strain was identified as a Micromonospora olivasterospora based on the cultural and molecular techniques in combination with an updated taxonomy were successfully used to identify the yellow grain- producing bacterial Micromonospora olivasterospora as a new causative agent of human actinomycetoma. The clinical strain showed low MIC to doxycycline (0.5 µg/ml) followed by amikacin (4µg/ml), ceftriaxone (4µg/ml), trimethoprim/sulfamethoxazole (TMP-SXT) (≤ 2/38µg/ml), linezolid (8µg/ml), imipenem (≤ 13 µg/ml), and cefotaxime (≥ 14 µg/ml). In contrast, was not susceptible to minocycline (≥ 4µg/ml), amoxicillin-clavulanic acid (> 32µg/ml) and ciprofloxacin (≥ 21µg/ml). Therefore our patient received amikacin sulfate (15 mg/kg twice daily for 5 weeks), folic acid 5 mg once per day and trimethoprim/sulfamethoxazole (TMP-SXT) (co-trimoxazole 960 mg twice daily for 6 weeks); the cycles are repeated until the patient is cured. In conclusion: Updated taxonomy is essential to identify the new causative agents to the species level and is fundamental to elucidate the actinomycetoma associated with this unusual bacterial and to determine the appropriate therapy.

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Section: Discussionmentioning

confidence: 99%

Identification and management of a yellow -grains actinomycetoma caused by Micromonospora olivasterospora in Sudan. The First Report

Mhmoud

2024

Preprint

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“…These characteristics are useful for their classification. From the above combination approaches, our group has discovered many new species of rare actinomycetes from diverse habitats, such as Actinokineospora bankokensis [54], Saccharopolyspora rhizosphaerae [55], Streptosporangium jomthongense [56], Saccharomonospora colocasiae [57] from rhizosphere soil, Amycolatopsis iheyensis [48], and Micromonospora pelagivivens [58] from marine sediments.…”

Section: Taxonomy and Classificationmentioning

confidence: 99%

Bioactive Metabolites from Terrestrial and Marine Actinomycetes

Ngamcharungchit,

Chaimusik,

Panbangred

et al. 2023

Molecules

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Actinomycetes inhabit both terrestrial and marine ecosystems and are highly proficient in producing a wide range of natural products with diverse biological functions, including antitumor, immunosuppressive, antimicrobial, and antiviral activities. In this review, we delve into the life cycle, ecology, taxonomy, and classification of actinomycetes, as well as their varied bioactive metabolites recently discovered between 2015 and 2023. Additionally, we explore promising strategies to unveil and investigate new bioactive metabolites, encompassing genome mining, activation of silent genes through signal molecules, and co-cultivation approaches. By presenting this comprehensive and up-to-date review, we hope to offer a potential solution to uncover novel bioactive compounds with essential activities.

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“…The genus currently encompasses more than 157 species with validly published names [4]. Micromonospora was originally considered a common freshwater actinobacterial group [5,6], but recent studies indicate a broad range of habitats for the genus including desert, marine sediment, plant root and hypersaline lake [7][8][9][10][11]. Micromonospora is one of the genera that produce a lot of physiologically active secondary metabolites, and has gained attention as a rich source in the exploitation of novel bioactive compounds, notably antibiotics [12,13].…”

Section: Introductionmentioning

confidence: 99%

Micromonospora antibiotica sp. nov. and Micromonospora humidisoli sp. nov., two new actinobacterial species exhibiting antimicrobial potential

Lee

Sik

Kim

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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Two novel actinobacterial strains, designated MMS20-R2-23T and MMS20-R2-29T, were isolated from riverside soil and subjected to taxonomic characterization. Both strains were Gram-stain-positive, aerobic, non-motile and filamentous, and formed orange to strong orange-brown coloured colonies, which later turned black. Both strains grew optimally at mesophilic temperatures, neutral to slightly alkaline pH and in the absence of NaCl. Analysis of 16S rRNA gene sequences indicated that the two novel strains fell into phylogenetic clusters belonging to the genus Micromonospora . Strains MMS20-R2-23T and MMS20-R2-29T showed the highest 16S rRNA gene sequence similarity to Micromonospora phytophila SG15T (99.3 %) and Micromonospora humida MMS20-R1-14T (99.4 %), respectively. Based on the comparative genome analysis, strain MMS20-R2-23T had the highest orthologous average nucleotide identity (orthoANI) value of 92.70 % with Micromonospora matsumotoense DSM 44100T, and MMS20-R2-29T shared 94.99 % with Micromonospora wenchangensis CCTCC AA 2012002T. Besides, the digital DNA–DNA hybridization (dDDH) values of MMS20-R2-23T and MMS20-R2-29T with the same species were 47.6 and 59.2% respectively, which were also highest among the compared species, thus confirming the separation of each strain at species level from related species. The orthoANI and dDDH values between MMS20-R2-23T and MMS20-R2-29T were 92.18 and 44.9% respectively. The genomes of strains MMS20-R2-23T and MMS20-R2-29T were estimated as 7.56 Mbp and 7.13 Mbp in size, and the DNA G+C contents were 72.5 and 72.9 mol%, respectively. The chemotaxonomic properties of both strains were consistent with those of the genus. The novel strains showed antimicrobial activity against a broad range of microbes, in particular Gram-positive bacteria and yeasts. It is evident that each of the isolated strains merits recognition as representing novel species of Micromonospora , for which the names Micromonospora antibiotica sp. nov. (type strain=MMS20-R2-23T=KCTC 49542T=JCM 34495T) and Micromonospora humidisoli sp. nov. (type strain=MMS20-R2-29T=KCTC 49543T=JCM 34496T) are proposed.

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Micromonospora pelagivivens sp. nov., a new species of the genus Micromonospora isolated from deep-sea sediment in Japan

Abstract: A novel marine actinomycete, designated strain KJ-029T, was isolated from a marine sediment sample (water depth of 226 m) in Kagoshima, Japan. 16S rRNA gene sequence analysis revealed that the new isolate was most closely related to Micromo… Show more

Cited by 9 publications

References 43 publications

Identification and management of a yellow -grains actinomycetoma caused by Micromonospora olivasterospora in Sudan. The First Report

Identification and management of a yellow -grains actinomycetoma caused by Micromonospora olivasterospora in Sudan. The First Report

Bioactive Metabolites from Terrestrial and Marine Actinomycetes

Micromonospora antibiotica sp. nov. and Micromonospora humidisoli sp. nov., two new actinobacterial species exhibiting antimicrobial potential

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