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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
27/02/2014 |
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Data da última atualização: |
28/02/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GONÇALVES, V. N.; CAMPOS, L. S.; MELO, I. S. de; PELLIZARI, V. H.; ROSA, C. A.; ROSA, L. H. |
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Afiliação: |
VIVIAN N GONÇALVES, ICB-UFMG; LUCIA S CAMPOS, IB-UFRJ; ITAMAR SOARES DE MELO, CNPMA; VIVAN HELENA PELLIZARI, IO-USP; CARLOS AUGUSTO ROSA, ICB-UFMG; LUIZ HENRIQUE ROSA, ICB-UFMG. |
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Título: |
Penicillium solitum: a mesophilic, psychrotolerant fungus present in marine sediments from Antarctica. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Polar Biology, v. 36, n. 12, p. 1823-1831, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Few studies have addressed the diversity of cultivable fungi from marine sediments, especially those from Antarctica. In the present study, we evaluated the presence and distribution of cultivable fungi in marine core sediments obtained from 100, 500, 700 and 1,100 m below the Antarctic Ocean surface. Fifty-two fungal isolates were identified as Penicillium solitum by their physiological and morphological characteristics, and the identity of 12 representative isolates was further confirmed by sequencing of the ITS1-5.8S-ITS2 and b-tubulin genes. P. solitum displayed high sequence similarity to Penicillium taxa that have been described from other marine habitats. Conidial germination of P. solitum occurred at low temperatures and high salinities. In addition, P. solitum displayed extracellular amylasic and esterasic activities. The isolation of P. solitum from marine sediments in Antarctica and its survival at low temperatures and high salt concentrationssuggest that it is adapted to the cold and halophilic environment of the Antarctic oceans. Because P. Solitum produces extracellular enzymes, it is an interesting eukaryotic model for the study of structure?function relationships during enzymatic biocatalysis and biotransformation under extreme conditions. Marine sediments from Antarctica may represent a unique source for obtaining extremophilic fungi. New studies using different culture media, temperatures ranges and pressure conditions as well as metagenomic techniques can assist in understanding the extremophilic fungal communities in marine sediments across the Antarctic Ocean. MenosFew studies have addressed the diversity of cultivable fungi from marine sediments, especially those from Antarctica. In the present study, we evaluated the presence and distribution of cultivable fungi in marine core sediments obtained from 100, 500, 700 and 1,100 m below the Antarctic Ocean surface. Fifty-two fungal isolates were identified as Penicillium solitum by their physiological and morphological characteristics, and the identity of 12 representative isolates was further confirmed by sequencing of the ITS1-5.8S-ITS2 and b-tubulin genes. P. solitum displayed high sequence similarity to Penicillium taxa that have been described from other marine habitats. Conidial germination of P. solitum occurred at low temperatures and high salinities. In addition, P. solitum displayed extracellular amylasic and esterasic activities. The isolation of P. solitum from marine sediments in Antarctica and its survival at low temperatures and high salt concentrationssuggest that it is adapted to the cold and halophilic environment of the Antarctic oceans. Because P. Solitum produces extracellular enzymes, it is an interesting eukaryotic model for the study of structure?function relationships during enzymatic biocatalysis and biotransformation under extreme conditions. Marine sediments from Antarctica may represent a unique source for obtaining extremophilic fungi. New studies using different culture media, temperatures ranges and pressure conditions as well as metagenomic techniques can ... Mostrar Tudo |
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Palavras-Chave: |
Microorganism; Sediment. |
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Thesagro: |
Fungo. |
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Thesaurus Nal: |
Antarctica; Fungi; Marine fungi; Marine sediments; Taxonomy. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02371naa a2200277 a 4500
001 1981475
005 2014-02-28
008 2013 bl uuuu u00u1 u #d
100 1 $aGONÇALVES, V. N.
245 $aPenicillium solitum$ba mesophilic, psychrotolerant fungus present in marine sediments from Antarctica.$h[electronic resource]
260 $c2013
520 $aFew studies have addressed the diversity of cultivable fungi from marine sediments, especially those from Antarctica. In the present study, we evaluated the presence and distribution of cultivable fungi in marine core sediments obtained from 100, 500, 700 and 1,100 m below the Antarctic Ocean surface. Fifty-two fungal isolates were identified as Penicillium solitum by their physiological and morphological characteristics, and the identity of 12 representative isolates was further confirmed by sequencing of the ITS1-5.8S-ITS2 and b-tubulin genes. P. solitum displayed high sequence similarity to Penicillium taxa that have been described from other marine habitats. Conidial germination of P. solitum occurred at low temperatures and high salinities. In addition, P. solitum displayed extracellular amylasic and esterasic activities. The isolation of P. solitum from marine sediments in Antarctica and its survival at low temperatures and high salt concentrationssuggest that it is adapted to the cold and halophilic environment of the Antarctic oceans. Because P. Solitum produces extracellular enzymes, it is an interesting eukaryotic model for the study of structure?function relationships during enzymatic biocatalysis and biotransformation under extreme conditions. Marine sediments from Antarctica may represent a unique source for obtaining extremophilic fungi. New studies using different culture media, temperatures ranges and pressure conditions as well as metagenomic techniques can assist in understanding the extremophilic fungal communities in marine sediments across the Antarctic Ocean.
650 $aAntarctica
650 $aFungi
650 $aMarine fungi
650 $aMarine sediments
650 $aTaxonomy
650 $aFungo
653 $aMicroorganism
653 $aSediment
700 1 $aCAMPOS, L. S.
700 1 $aMELO, I. S. de
700 1 $aPELLIZARI, V. H.
700 1 $aROSA, C. A.
700 1 $aROSA, L. H.
773 $tPolar Biology$gv. 36, n. 12, p. 1823-1831, 2013.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 97 | |
| 1. |  | ANDRADE, R. V. de. Brazil. In: WORKSHOP ON LATIN AMERICAN MAIZE GERMPLASM CONSERVATION: CORE SUBSET DEVELOPMENT AND REGENERATION, 1998, Mexico. Proceedings. Mexico: CIMMYT, 1999. p. 21-22.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | TEIXEIRA, F. F.; ANDRADE, R. V. de. Brazil. In: WORKSHOP LATIN AMERICAN MAIZE GERMPLASM CONSERVATION: REGENERATION, IN SITU CONSERVATION, CORE SUBSETS, AND PREBREEDING, 2003, Mexico. Proceedings... Mexico: CIMMYT, 2005. p. 64. Relatórios dos países.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | ANDREOLI, C.; ANDRADE, R. V. de. Considerações estatísticas sobre os testes de pureza genética em milho e soja. Informativo ABRATES, Brasília, DF, v. 13, n. 3, p. 118, set. 2003. Número especial. Edição dos resumos do XIII Congresso Brasileiro de Seentes, Londrina, 2003.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Soja. |
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| 14. | | ANDREOLI, C.; ANDRADE, R. V. de. Efeito da integração do matricondicionamento com o tratamento de sementes sobre a emergência de plântulas e a produtividade de milho. Infomativo ABRATES, Brasília, DF, v. 13, n. 3, p. 256, set. 2003. Número especial. Edição dos resumos do XIII Congresso Brasileiro de Sementes, Londrina, 2003.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Soja. |
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| Registros recuperados : 97 | |
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