| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Meio Ambiente. |
|
Data corrente: |
20/02/2017 |
|
Data da última atualização: |
02/03/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ROMÃO-DUMARESQ, A. S.; DOURADO, M. N.; FAVARO, L. C. de L.; MENDES, R.; FERREIRA, A.; ARAÚJO, W. L. |
|
Afiliação: |
ALINE SILVA ROMÃO-DUMARESQ; MANUELLA NÓBREGA DOURADO; LEIA CECILIA DE LIMA FAVARO, CNPAE; RODRIGO MENDES, CNPMA; ANDERSON FERREIRA, ESALQ-USP; WELINGTON LUIZ ARAÚJO, ICB-USP. |
|
Título: |
Diversity of cultivated fungi associated with conventional and transgenic sugarcane and the interaction between endophytic trichoderma virens and host plant. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Plos One, v. 11, n. 7, p. e0158974, 2016. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: Plant-associated fungi are considered a vast source for biotechnological processes whose potential has been poorly explored. The interactions and diversity of sugarcane, one of the most important crops in Brazil, have been rarely studied, mainly concerning fungal communities and their interactions with transgenic plants. Taking this into consideration, the purpose of this study was, based on culture dependent strategy, to determine the structure and diversity of the fungal community (root endophytes and rhizosphere) associated with two varieties of sugarcane, a non-genetically modified (SP80-1842) variety and its genetically modified counterpart (IMI-1, expressing imazapyr herbicide resistance). For this, the sugarcane varieties were evaluated in three sampling times (3, 10 and 17 months after planting) under two crop management (weeding and herbicide treatments). In addition, a strain of Trichoderma virens, an endophyte isolated from sugarcane with great potential as a biological control, growth promotion and enzyme production agent, was selected for the fungal-plant interaction assays. The results of the isolation, characterization and evaluation of fungal community changes showed that the sugarcane fungal community is composed of at least 35 different genera, mostly in the phylum Ascomycota. Many genera are observed at very low frequencies among a few most abundant genera, some of which were isolated from specific plant sites (e.g., the roots or the rhizosphere). An assessment of the possible effects upon the fungal community showed that the plant growth stage was the only factor that significantly affected the community?s structure. Moreover, if transgenic effects are present, they may be minor compared to other natural sources of variation. The results of interaction studies using the Green fluorescent protein (GFP)-expressing T. virens strain T.v.223 revealed that this fungus did not promote any phenotypic changes in the host plant and was found mostly in the roots where it formed a dense mycelial cover and was able to penetrate the intercellular spaces of the root epidermis upper layers. The ability of T. virens to colonize plant roots suggests a potential for protecting plant health, inhibiting pathogens or inducing systemic resistance. MenosAbstract: Plant-associated fungi are considered a vast source for biotechnological processes whose potential has been poorly explored. The interactions and diversity of sugarcane, one of the most important crops in Brazil, have been rarely studied, mainly concerning fungal communities and their interactions with transgenic plants. Taking this into consideration, the purpose of this study was, based on culture dependent strategy, to determine the structure and diversity of the fungal community (root endophytes and rhizosphere) associated with two varieties of sugarcane, a non-genetically modified (SP80-1842) variety and its genetically modified counterpart (IMI-1, expressing imazapyr herbicide resistance). For this, the sugarcane varieties were evaluated in three sampling times (3, 10 and 17 months after planting) under two crop management (weeding and herbicide treatments). In addition, a strain of Trichoderma virens, an endophyte isolated from sugarcane with great potential as a biological control, growth promotion and enzyme production agent, was selected for the fungal-plant interaction assays. The results of the isolation, characterization and evaluation of fungal community changes showed that the sugarcane fungal community is composed of at least 35 different genera, mostly in the phylum Ascomycota. Many genera are observed at very low frequencies among a few most abundant genera, some of which were isolated from specific plant sites (e.g., the roots or the rhizosphere)... Mostrar Tudo |
|
Palavras-Chave: |
Cana-de-açúcar convencional; Cana-de-açúcar transgênica; Diversidade de fungos cultivados; Trichoderma virens endofítico. |
|
Thesagro: |
Planta Hospedeira. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03124naa a2200241 a 4500
001 2064860
005 2017-03-02
008 2016 bl --- 0-- u #d
100 1 $aROMÃO-DUMARESQ, A. S.
245 $aDiversity of cultivated fungi associated with conventional and transgenic sugarcane and the interaction between endophytic trichoderma virens and host plant.$h[electronic resource]
260 $c2016
520 $aAbstract: Plant-associated fungi are considered a vast source for biotechnological processes whose potential has been poorly explored. The interactions and diversity of sugarcane, one of the most important crops in Brazil, have been rarely studied, mainly concerning fungal communities and their interactions with transgenic plants. Taking this into consideration, the purpose of this study was, based on culture dependent strategy, to determine the structure and diversity of the fungal community (root endophytes and rhizosphere) associated with two varieties of sugarcane, a non-genetically modified (SP80-1842) variety and its genetically modified counterpart (IMI-1, expressing imazapyr herbicide resistance). For this, the sugarcane varieties were evaluated in three sampling times (3, 10 and 17 months after planting) under two crop management (weeding and herbicide treatments). In addition, a strain of Trichoderma virens, an endophyte isolated from sugarcane with great potential as a biological control, growth promotion and enzyme production agent, was selected for the fungal-plant interaction assays. The results of the isolation, characterization and evaluation of fungal community changes showed that the sugarcane fungal community is composed of at least 35 different genera, mostly in the phylum Ascomycota. Many genera are observed at very low frequencies among a few most abundant genera, some of which were isolated from specific plant sites (e.g., the roots or the rhizosphere). An assessment of the possible effects upon the fungal community showed that the plant growth stage was the only factor that significantly affected the community?s structure. Moreover, if transgenic effects are present, they may be minor compared to other natural sources of variation. The results of interaction studies using the Green fluorescent protein (GFP)-expressing T. virens strain T.v.223 revealed that this fungus did not promote any phenotypic changes in the host plant and was found mostly in the roots where it formed a dense mycelial cover and was able to penetrate the intercellular spaces of the root epidermis upper layers. The ability of T. virens to colonize plant roots suggests a potential for protecting plant health, inhibiting pathogens or inducing systemic resistance.
650 $aPlanta Hospedeira
653 $aCana-de-açúcar convencional
653 $aCana-de-açúcar transgênica
653 $aDiversidade de fungos cultivados
653 $aTrichoderma virens endofítico
700 1 $aDOURADO, M. N.
700 1 $aFAVARO, L. C. de L.
700 1 $aMENDES, R.
700 1 $aFERREIRA, A.
700 1 $aARAÚJO, W. L.
773 $tPlos One$gv. 11, n. 7, p. e0158974, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
18/05/1995 |
|
Data da última atualização: |
05/04/2017 |
|
Autoria: |
CARDOSO, E. L.; ALVARENGA, G.; CARVALHO, M. M.; CARVALHO, J. G. de. |
|
Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS); USAL. Departamento de Agricultura e Departamento de Ciencia do Solo (Lavras, MG). |
|
Título: |
Efeito de doses de superfosfato simples no bubstrato sobre os teores de macro e micronutrientes em mudas de cafeeiro (Coffea arabica L.) Mundo Novo e Catuai. |
|
Ano de publicação: |
1992 |
|
Fonte/Imprenta: |
Ciencias e Praticas, Lavras, v.16, n.2, p.201-206, 1992. |
|
Idioma: |
Português |
|
Conteúdo: |
O objetivo do presente estudo foi avaliar o efeito de doses de superfosfato simples sobre os teores de macro e micronutrientes em cafeeiros 'Mundo Novo' e 'Catuai'. O experimento foi conduzido no campus da Escola Superior de Agricultura de Lavras. O delineamento experimental utilizado foi de blocos casualizados em esquema fatorial 4 x 4 com tres repeticoes. Pelos resultados obtidos conclui-se que as doses de fosforo proporcionaram aumento nos teores de P, Ca e Mn e reducao nos teores de Mg e Cu. Os teores de K decresceram ate a dose estimada de 625,00 g de P2O5. Os maiores teores de N foram constatados na linhagem 'Mundo Novo' 379/19 e, o 'Catuai Amarelo' apresentou os maiores teores de P, Ca, Mg e S. As linhagens nao diferiram quanto aos teores de K, B, Cu, Mn, Fe e Zn. |
|
Palavras-Chave: |
Coffee; Nutrient; Seedligs; Substrate; Substrato. |
|
Thesagro: |
Café; Fósforo; Muda; Nutriente. |
|
Thesaurus NAL: |
phosphorus. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01563naa a2200277 a 4500
001 1784235
005 2017-04-05
008 1992 bl --- 0-- u #d
100 1 $aCARDOSO, E. L.
245 $aEfeito de doses de superfosfato simples no bubstrato sobre os teores de macro e micronutrientes em mudas de cafeeiro (Coffea arabica L.) Mundo Novo e Catuai.
260 $c1992
520 $aO objetivo do presente estudo foi avaliar o efeito de doses de superfosfato simples sobre os teores de macro e micronutrientes em cafeeiros 'Mundo Novo' e 'Catuai'. O experimento foi conduzido no campus da Escola Superior de Agricultura de Lavras. O delineamento experimental utilizado foi de blocos casualizados em esquema fatorial 4 x 4 com tres repeticoes. Pelos resultados obtidos conclui-se que as doses de fosforo proporcionaram aumento nos teores de P, Ca e Mn e reducao nos teores de Mg e Cu. Os teores de K decresceram ate a dose estimada de 625,00 g de P2O5. Os maiores teores de N foram constatados na linhagem 'Mundo Novo' 379/19 e, o 'Catuai Amarelo' apresentou os maiores teores de P, Ca, Mg e S. As linhagens nao diferiram quanto aos teores de K, B, Cu, Mn, Fe e Zn.
650 $aphosphorus
650 $aCafé
650 $aFósforo
650 $aMuda
650 $aNutriente
653 $aCoffee
653 $aNutrient
653 $aSeedligs
653 $aSubstrate
653 $aSubstrato
700 1 $aALVARENGA, G.
700 1 $aCARVALHO, M. M.
700 1 $aCARVALHO, J. G. de
773 $tCiencias e Praticas, Lavras$gv.16, n.2, p.201-206, 1992.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
