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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
20/02/2017 |
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Data da última atualização: |
27/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEITE, J.; FISCHER, D.; ROUWS, L. F. M.; FERNANDES JUNIOR, P. I.; HOFMANN, A.; KUBLIK, S.; SCHLOTER, M.; XAVIER, G. R.; RADL, V. |
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Afiliação: |
LUC FELICIANUS MARIE ROUWS, CNPAB; PAULO IVAN FERNANDES JUNIOR, CPATSA; GUSTAVO RIBEIRO XAVIER, CNPAB. |
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Título: |
Cowpea nodules harbor non-rhizobial bacterial communities that are shaped by soil type rather than plant genotype. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Frontiers in Plant Science v. 7, p. 1-11, jan. 2017. |
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DOI: |
10.3389/fpls.2016.02064 |
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Idioma: |
Inglês |
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Conteúdo: |
Many studies have been pointing to a high diversity of bacteria associated to legume root nodules. Even though most of these bacteria do not form nodules with legumes themselves, it was shown that they might enter infection threads when co-inoculated with rhizobial strains. The aim of this work was to describe the diversity of bacterial communities associated with cowpea (Vigna unguiculata L. Walp) root nodules using 16S rRNA gene amplicon sequencing, regarding the factors plant genotype and soil type. As expected, Bradyrhizobium was the most abundant genus of the detected genera. Furthermore, we found a high bacterial diversity associated to cowpea nodules; OTUs related to the genera Enterobacter, Chryseobacterium, Sphingobacterium, and unclassified Enterobacteriacea were the most abundant. The presence of these groups was significantly influenced by the soil type and, to a lesser extent, plant genotype. Interestingly, OTUs assigned to Chryseobacterium were highly abundant, particularly in samples obtained from an Ultisol soil. We confirmed their presence in root nodules and assessed their diversity using a target isolation approach. Though their functional role still needs to be addressed, we postulate that Chryseobacterium strains might help cowpea plant to cope with salt stress in semi-arid regions. |
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Palavras-Chave: |
Cowpea; Estirpes; Feijão caupi. |
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Thesagro: |
Bacteria; Feijão; Genótipo; Rhizobium; Vigna Unguiculata. |
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Thesaurus Nal: |
Bradyrhizobium; Chryseobacterium; endophytes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02322naa a2200361 a 4500
001 2064793
005 2017-12-27
008 2017 bl --- 0-- u #d
024 7 $a10.3389/fpls.2016.02064$2DOI
100 1 $aLEITE, J.
245 $aCowpea nodules harbor non-rhizobial bacterial communities that are shaped by soil type rather than plant genotype.$h[electronic resource]
260 $c2017
520 $aMany studies have been pointing to a high diversity of bacteria associated to legume root nodules. Even though most of these bacteria do not form nodules with legumes themselves, it was shown that they might enter infection threads when co-inoculated with rhizobial strains. The aim of this work was to describe the diversity of bacterial communities associated with cowpea (Vigna unguiculata L. Walp) root nodules using 16S rRNA gene amplicon sequencing, regarding the factors plant genotype and soil type. As expected, Bradyrhizobium was the most abundant genus of the detected genera. Furthermore, we found a high bacterial diversity associated to cowpea nodules; OTUs related to the genera Enterobacter, Chryseobacterium, Sphingobacterium, and unclassified Enterobacteriacea were the most abundant. The presence of these groups was significantly influenced by the soil type and, to a lesser extent, plant genotype. Interestingly, OTUs assigned to Chryseobacterium were highly abundant, particularly in samples obtained from an Ultisol soil. We confirmed their presence in root nodules and assessed their diversity using a target isolation approach. Though their functional role still needs to be addressed, we postulate that Chryseobacterium strains might help cowpea plant to cope with salt stress in semi-arid regions.
650 $aBradyrhizobium
650 $aChryseobacterium
650 $aendophytes
650 $aBacteria
650 $aFeijão
650 $aGenótipo
650 $aRhizobium
650 $aVigna Unguiculata
653 $aCowpea
653 $aEstirpes
653 $aFeijão caupi
700 1 $aFISCHER, D.
700 1 $aROUWS, L. F. M.
700 1 $aFERNANDES JUNIOR, P. I.
700 1 $aHOFMANN, A.
700 1 $aKUBLIK, S.
700 1 $aSCHLOTER, M.
700 1 $aXAVIER, G. R.
700 1 $aRADL, V.
773 $tFrontiers in Plant Science$gv. 7, p. 1-11, jan. 2017.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
04/12/2018 |
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Data da última atualização: |
20/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BRUBNETTO, G.; TIECHER, T. L.; HAMMERSHMITT, R. K.; FACCO, D. B.; FERREIRA, P. A. A.; CONTI. L. de; SILVA, L. O. S.; MAYER, N. A.; ANTUNES, L. E. C.; CESCO, S.; MIMMO, T. |
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Afiliação: |
G. Brunetto; T.L. Tiecher; R.K. Hammerschmitt; D.B. Facco; P.A.A. Ferreira; L. De Conti; L.O.S. Silva; NEWTON ALEX MAYER, CPACT; LUIS EDUARDO CORREA ANTUNES, CPACT; S. Cesco; T. Mimmo. |
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Título: |
Peach rootstock tolerance to excess zinc in sandy acidic soil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Acta Horticulturae, v. 1217, p. 75-82, 2018. |
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Idioma: |
Inglês |
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Notas: |
Publicado no ISHS Acta Horticulturae 1217: VIII International Symposium on Mineral Nutrition of Fruit Crops |
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Conteúdo: |
In some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in leaf dry matter production, chlorophyll a and carotenoid concentrations, and CAT activity. The Flordaguard rootstock showed an increase in height with increasing Zn concentration applied to the soil. Development of the Rigitano rootstock plants was unaffected by Zn amendment. MenosIn some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in lea... Mostrar Tudo |
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Palavras-Chave: |
Acidic soils; Foliar fungicides; Photosynthetic pigments. |
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Thesagro: |
Pêssego; Porta Enxerto. |
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Thesaurus NAL: |
Heavy metals; Phytotoxicity. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02751nam a2200325 a 4500
001 2100648
005 2019-12-20
008 2018 bl uuuu u00u1 u #d
100 1 $aBRUBNETTO, G.
245 $aPeach rootstock tolerance to excess zinc in sandy acidic soil.$h[electronic resource]
260 $aActa Horticulturae, v. 1217, p. 75-82$c2018
500 $aPublicado no ISHS Acta Horticulturae 1217: VIII International Symposium on Mineral Nutrition of Fruit Crops
520 $aIn some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in leaf dry matter production, chlorophyll a and carotenoid concentrations, and CAT activity. The Flordaguard rootstock showed an increase in height with increasing Zn concentration applied to the soil. Development of the Rigitano rootstock plants was unaffected by Zn amendment.
650 $aHeavy metals
650 $aPhytotoxicity
650 $aPêssego
650 $aPorta Enxerto
653 $aAcidic soils
653 $aFoliar fungicides
653 $aPhotosynthetic pigments
700 1 $aTIECHER, T. L.
700 1 $aHAMMERSHMITT, R. K.
700 1 $aFACCO, D. B.
700 1 $aFERREIRA, P. A. A.
700 1 $aCONTI. L. de
700 1 $aSILVA, L. O. S.
700 1 $aMAYER, N. A.
700 1 $aANTUNES, L. E. C.
700 1 $aCESCO, S.
700 1 $aMIMMO, T.
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