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| Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
07/11/2019 |
Data da última atualização: |
07/11/2019 |
Autoria: |
CHAIBUB, A. A.; SOUSA, T. P. de; ARAÚJO, L. G. de; FILIPPI, M. C. C. de. |
Afiliação: |
AMANDA A. CHAIBUB, UNB; THATYANE P. DE SOUSA, UFG; LEILA GARCES DE ARAUJO, UFG; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
Título: |
Molecular and morphological characterization of rice phylloplane fungi and determination of the antagonistic activity against rice pathogens. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Microbiological Research, v. 231, 126353, Jan. 2020. |
ISSN: |
0944-5013 |
DOI: |
10.1016/j.micres.2019.126353 |
Idioma: |
Inglês |
Conteúdo: |
Cladosporium spp. is a cosmopolitan fungal genus. In the literature, it has been reported as a biological agent for controlling several plant diseases, but its mechanism of action has never been clarified. The present study aims to identify Cladosporium spp. based on the DNA phylogeny of nine isolates obtained from the phylloplane of rice and their potential antagonistic activity against the main fungal pathogens that affect rice crop. Nine isolates of Cladosporium spp. were identified based on DNA phylogeny, molecular and morphological characterization, and their antagonistic effects with the rice pathogens C. miyabeanus, M. oryzae, M. albescens and S. oryzae. Four isolates were selected to study lytic enzymes such as β-1,3-glucanase, chitinase and protease, and only one isolate was selected for a conidial germination and appressoria formation assay. The nine isolates were identified as C. cladosporioides, C. tenuissimum and C. subuliforme. Four isolates, identified as C. cladosporioides, inhibited the mycelial growth of rice pathogens such as C1H (68.59%) of S. oryzae, C5 G (74.32%) of C. miyabeanus, C11 G (75.97%) of M. oryzae and C24 G (77.39%) of M. albescens. C24 G showed a high activity of lytic enzymes, was tested against C. miyabeanus and M. oryzae, and inhibited conidial germination and appressorium formation by more than 59.36%. The characterization of C. cladosporioides suggested this species as a potential bioagent for the management of several rice diseases, especially rice blast. This is the first time that a potential biological agent from the genus Cladosporium identified at the species level was isolated from the rice phylloplane, and some of its mechanisms of action were demonstrated, such as increasing lytic enzyme activity against rice pathogens. MenosCladosporium spp. is a cosmopolitan fungal genus. In the literature, it has been reported as a biological agent for controlling several plant diseases, but its mechanism of action has never been clarified. The present study aims to identify Cladosporium spp. based on the DNA phylogeny of nine isolates obtained from the phylloplane of rice and their potential antagonistic activity against the main fungal pathogens that affect rice crop. Nine isolates of Cladosporium spp. were identified based on DNA phylogeny, molecular and morphological characterization, and their antagonistic effects with the rice pathogens C. miyabeanus, M. oryzae, M. albescens and S. oryzae. Four isolates were selected to study lytic enzymes such as β-1,3-glucanase, chitinase and protease, and only one isolate was selected for a conidial germination and appressoria formation assay. The nine isolates were identified as C. cladosporioides, C. tenuissimum and C. subuliforme. Four isolates, identified as C. cladosporioides, inhibited the mycelial growth of rice pathogens such as C1H (68.59%) of S. oryzae, C5 G (74.32%) of C. miyabeanus, C11 G (75.97%) of M. oryzae and C24 G (77.39%) of M. albescens. C24 G showed a high activity of lytic enzymes, was tested against C. miyabeanus and M. oryzae, and inhibited conidial germination and appressorium formation by more than 59.36%. The characterization of C. cladosporioides suggested this species as a potential bioagent for the management of several rice disease... Mostrar Tudo |
Thesagro: |
Arroz; Doença de Planta; Fungo; Oryza Sativa; Patógeno; Taxonomia Vegetal. |
Thesaurus Nal: |
Cladosporium; Drug antagonism; Enzyme activity; Fungi; Mycoparasites; Rice; Taxonomy. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02780naa a2200337 a 4500 001 2114015 005 2019-11-07 008 2020 bl uuuu u00u1 u #d 022 $a0944-5013 024 7 $a10.1016/j.micres.2019.126353$2DOI 100 1 $aCHAIBUB, A. A. 245 $aMolecular and morphological characterization of rice phylloplane fungi and determination of the antagonistic activity against rice pathogens.$h[electronic resource] 260 $c2020 520 $aCladosporium spp. is a cosmopolitan fungal genus. In the literature, it has been reported as a biological agent for controlling several plant diseases, but its mechanism of action has never been clarified. The present study aims to identify Cladosporium spp. based on the DNA phylogeny of nine isolates obtained from the phylloplane of rice and their potential antagonistic activity against the main fungal pathogens that affect rice crop. Nine isolates of Cladosporium spp. were identified based on DNA phylogeny, molecular and morphological characterization, and their antagonistic effects with the rice pathogens C. miyabeanus, M. oryzae, M. albescens and S. oryzae. Four isolates were selected to study lytic enzymes such as β-1,3-glucanase, chitinase and protease, and only one isolate was selected for a conidial germination and appressoria formation assay. The nine isolates were identified as C. cladosporioides, C. tenuissimum and C. subuliforme. Four isolates, identified as C. cladosporioides, inhibited the mycelial growth of rice pathogens such as C1H (68.59%) of S. oryzae, C5 G (74.32%) of C. miyabeanus, C11 G (75.97%) of M. oryzae and C24 G (77.39%) of M. albescens. C24 G showed a high activity of lytic enzymes, was tested against C. miyabeanus and M. oryzae, and inhibited conidial germination and appressorium formation by more than 59.36%. The characterization of C. cladosporioides suggested this species as a potential bioagent for the management of several rice diseases, especially rice blast. This is the first time that a potential biological agent from the genus Cladosporium identified at the species level was isolated from the rice phylloplane, and some of its mechanisms of action were demonstrated, such as increasing lytic enzyme activity against rice pathogens. 650 $aCladosporium 650 $aDrug antagonism 650 $aEnzyme activity 650 $aFungi 650 $aMycoparasites 650 $aRice 650 $aTaxonomy 650 $aArroz 650 $aDoença de Planta 650 $aFungo 650 $aOryza Sativa 650 $aPatógeno 650 $aTaxonomia Vegetal 700 1 $aSOUSA, T. P. de 700 1 $aARAÚJO, L. G. de 700 1 $aFILIPPI, M. C. C. de 773 $tMicrobiological Research$gv. 231, 126353, Jan. 2020.
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Embrapa Arroz e Feijão (CNPAF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
24/05/2013 |
Data da última atualização: |
20/08/2014 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
MOREIRA, J. M. M. A. P.; TEIXEIRA, L. P.; SOUSA, T. C. R. de. |
Afiliação: |
JOSE MAURO M AVILA PAZ MOREIRA, CNPF; LUCIENE PIRES TEIXEIRA, CPAC; TITO CARLOS ROCHA DE SOUSA, CPAC. |
Título: |
Desempenho agronômico e análise econômico-financeira do maracujá BRS Gigante Amarelo no Distrito Federal. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: GUIDUCCI, R. do C. N.; LIMA FILHO, J. R. de; MOTA, M. M. (Ed.). Viabilidade econômica de sistemas de produção agropecuários: metodologia e estudos de caso. Brasília, DF: Embrapa, 2012. |
Páginas: |
p. 151-211. |
Idioma: |
Português |
Palavras-Chave: |
Desempenho econômico. |
Thesagro: |
Mercado; Passiflora Edulis. |
Thesaurus NAL: |
Passiflora alata. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00743naa a2200193 a 4500 001 1958830 005 2014-08-20 008 2012 bl uuuu u00u1 u #d 100 1 $aMOREIRA, J. M. M. A. P. 245 $aDesempenho agronômico e análise econômico-financeira do maracujá BRS Gigante Amarelo no Distrito Federal. 260 $c2012 300 $ap. 151-211. 650 $aPassiflora alata 650 $aMercado 650 $aPassiflora Edulis 653 $aDesempenho econômico 700 1 $aTEIXEIRA, L. P. 700 1 $aSOUSA, T. C. R. de 773 $tIn: GUIDUCCI, R. do C. N.; LIMA FILHO, J. R. de; MOTA, M. M. (Ed.). Viabilidade econômica de sistemas de produção agropecuários: metodologia e estudos de caso. Brasília, DF: Embrapa, 2012.
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