A new acidophilic fungus Teratosphaeria acidotherma (Capnodiales, Ascomycota) from a hot spring

Yamazaki, Atsushi; Toyama, Kyoko; Nakagiri, Akira

doi:10.1007/s10267-010-0059-2

Cited by 37 publications

(20 citation statements)

References 25 publications

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“…In nature, acidic environments occur mainly in soils, lakes, swamps and peat bogs, and most fungi isolated from these acidic habitats are acid‐tolerant (Gross and Robbins, ). So far, only Acidomyces acidophilus (Selbmann et al., ), Acidomyces acidothermus (Yamazaki et al., ; Hujslová et al., ) and Hortaea acidophila (Hölker et al., ) in Teratosphaeriaceae , Acidothrix acidophila in Amplistromataceae (Hujslová et al., , ) and Penicillium lignorum (Stolk, ) in Eurotiales have been regarded as strictly acidophilic fungi. More than 35 Penicillium and Talaromyces species have been reported to be acid‐tolerant (Gross and Robbins, ; Dhakar et al., ; Houbraken et al., ) with three of these species belonging to Penicillium section Lanata‐divaricata , namely P. janthinellum (Dhakar et al., ), P. ochrochloron and P. simplicissimum (Gross and Robbins, ).…”

Section: Introductionmentioning

confidence: 99%

Penicillium section Lanata‐divaricata from acidic soil

Diao

Chen

Jiang³

et al. 2018

Cladistics

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Penicillium species in section Lanata-divaricata are common soil-inhabiting fungi, but their presence in acidic soil has rarely been investigated. In an ongoing survey of Penicillium species occurring in China, 465 strains were isolated from soil, and of which 60 belonged to section Lanata-divaricata. The majority of these strains were isolated from acidic soil. The phylogenetic relationship between these 60 isolates and accepted species of section Lanata-divaricata was studied using ITS, BenA, CaM and RPB2 sequences, which revealed the presence of seven accepted species and 13 novel lineages. Combining phylogenetic data with data generated during macro-and microscopic observations resulted in the description of 13 new species. The growth rate of the new species obtained in this study was determined under acidic, neutral and alkaline conditions (pH 4, 7, 10). With the exception of P. hainanense, which was not able to grow at pH 10, all strains were able to grow at the three examined pH levels. Eleven species (i.e. P. austrosinense, P. flaviroseum, P. globosum, P. griseoflavum, P. hainanense, P. jianfenglingense, P. laevigatum, P. rubriannulatum, P. soliforme, P. spinuliferum, P. yunnanense) grew faster at low pH (pH 4) than at pH 7 or 10, and these species are therefore referred to as acidpreferential. Penicillium viridissimum grew fastest on neutral medium and P. guangxiense grew best at pH 10, and is therefore considered to be acid-tolerant. By isolating strains from a unique environment, combined with targeted isolation using a well-designed protocol, we are able to describe new fungal diversity with specific physiological characteristics.

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Section: Introductionmentioning

confidence: 99%

Penicillium section Lanata‐divaricata from acidic soil

Diao

Chen

Jiang³

et al. 2018

Cladistics

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“…All the acidophilic fungi hitherto reported are invariably anamorphic species; Teratosphaeria acidotherma A. Yamaz., K. Toyama, & Nakagiri is an exception and is phylogenetically related to A. acidophilus, recently described as a new teleomorphic species from acidic hot spring in Japan (Yamazaki et al 2010). In general, extremozymes have attracted a great deal of interest due to their potential for practical applications.…”

Section: Fungi From Polluted Environments: a Rich Source For Bioexplomentioning

confidence: 99%

Biodiversity, evolution and adaptation of fungi in extreme environments

Selbmann

Egidi

Isola

et al. 2013

Plant Biosystems - An International Journal Dealing with all As

105

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Fungi play irreplaceable roles for ecosystem functioning. They may adopt different lifestyles, for example saprotrophs, symbionts or parasites: some species are cosmopolitan with a wide distribution and others, thanks to their ecological plasticity, may adapt to harsh environments precluded to most of life forms. In stressing conditions, their role is even more crucial for the recycling of organic matter or favoring nutrients uptake. When the conditions become really extreme and competition is low, fungi focus on extremotolerance and evolve peculiar competences to exploit natural or xenobiotic resources in the particular constrains imposed by the environment. This paper focuses on three different cases of fungal life in the extremes: hydrocarbon-polluted sites, extremely acidic substrates, and littoral dunes, aiming to give few but significant examples of the role of these fascinating organisms in peculiar habitats and the valuable biotechnological potentialities of the abilities they have evolved in response to such constrains. Keywords

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“…Based on the homology analysis with other species, including Teratosphaeriaceae and other families, such as the Capnodiales of Mycosphaerellaceae, Capnodiaceae, Davidiellaceae, and Dissoconiaceae (26,27,28,29), we found that the T9 strain was located on the branch of the family Teratosphaeriaceae and the genus Penidiella in the phylogenetic tree (Fig. 6).…”

Section: Discussionmentioning

confidence: 99%

“…Teratosphaeria acidotherma, which is in a sister clade of Penidiella (Fig. 6), is an acidophilic fungus that prefers to grow at pH 2.0 to 5.0 (27). As the T9 strain was isolated from a low-moisture sample at an abandoned mine and grows better at pH 2.0 to 3.0, the strain has the typical characteristics of Teratosphaeriaceae.…”

Section: Discussionmentioning

confidence: 99%

A New Fungal Isolate, Penidiella sp. Strain T9, Accumulates the Rare Earth Element Dysprosium

Horiike

Yamashita

2015

Appl Environ Microbiol

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With an aim to develop a highly efficient method for the recovery of rare earth elements (REEs) by using microorganisms, we attempted to isolate dysprosium (Dy)-accumulating microorganisms that grow under acidic conditions from environmental samples containing high concentrations of heavy metals. One acidophilic strain, T9, which was isolated from an abandoned mine, decreased the concentration of Dy in medium that contained 100 mg/liter Dy to 53 mg/liter Dy after 3 days of cultivation at pH 2.5. The Dy content in the cell pellet of the T9 strain was 910 g/mg of dry cells. The T9 strain also accumulated other REEs. Based on the results of 28S-D1/D2 rRNA gene sequencing and morphological characterization, we designated this fungal strain Penidiella sp. T9. Bioaccumulation of Dy was observed on the cell surface of the T9 strain by elemental mapping using scanning electron microscopy-energy dispersive X-ray spectroscopy. Our results indicate that Penidiella sp. T9 has the potential to recover REEs such as Dy from mine drainage and industrial liquid waste under acidic conditions. T he rare earth elements (REEs), which include scandium (Sc; atomic number [Z] ϭ 21), yttrium (Y; Z ϭ 39), and the 15 lanthanide elements (Z ϭ 57 to 71), exhibit magnetism, fluorescence, and superconductivity due to their characteristic electron orbitals (1). As powerful magnetic and superconductive materials are essential for the development of advanced industries that require high-energy efficiency, REEs are indispensable ingredients in the manufacture of these products. Dysprosium (Dy) is marketed at a higher rate than other REEs due to its limited resources and the expanding demand for this heat-resistant, powerful magnetic material. To establish new sources of Dy, even wastes with low Dy concentrations, such as mine drainage, ore wastes, and industrial liquid wastes, have been gaining attention (2, 3). However, systems to efficiently recover Dy from these wastes using physical/chemical technologies have not yet been developed. Therefore, new technologies for the recovery of Dy from wastes with low Dy concentrations are urgently needed.Biological approaches based on bioaccumulation by microorganisms have recently received a great deal of attention as alternatives for metal recovery and remediation (4). Compared to physical/chemical technologies, bioaccumulation has the advantages of low cost, high efficiency, and environmental friendliness (5, 6). Although the resting cells of several microorganisms have been shown to accumulate REEs at pH 3.0 to 6.0 (7,8,9,10), no microorganism has been shown to accumulate REEs at pH values below 3.0. In this study, we attempted to isolate microorganisms from environmental samples that have the ability to accumulate Dy (during growth) from acidic wastewater containing dissolved Dy similar to that found in mine drainage. One such strain isolated from an abandoned mine site was analyzed by phylogenetic and morphological methods and was found to belong to the fungal division Ascomycota. Dy bioaccumulation ...

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A new acidophilic fungus Teratosphaeria acidotherma (Capnodiales, Ascomycota) from a hot spring

Cited by 37 publications

References 25 publications

Penicillium section Lanata‐divaricata from acidic soil

Penicillium section Lanata‐divaricata from acidic soil

Biodiversity, evolution and adaptation of fungi in extreme environments

A New Fungal Isolate, Penidiella sp. Strain T9, Accumulates the Rare Earth Element Dysprosium

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