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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
14/05/2004 |
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Data da última atualização: |
14/05/2004 |
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Autoria: |
DECLERCK, S.; D'OR, D.; BIVORT, C.; SOUZA, F. A. de. |
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Título: |
Development of extraradical mycelium of Scutellopora reticulata under root-organ culture: spore production and function of auxiliary cells. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Mycological Research, New York, v.108. n. 1, p. 84-92, jan. 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
The development of the extraradical mycelium and auxiliary cells and spore production of Scutellospora reticulata in association with Ri-DNA transformed carrot was followed under root-organ culture conditions. Extraradical mycelium development followed classical lag-exponential-plateau phases, with an additional late decline phase en number of auxiliary cells. Spore production started in parallel with a critical extraradical mycelium biomass produced, continued long after root growth ceased and during the late decline in auxiliary cells were shown to exhibit hyphal re-growth, but not root colonization, either in situ or in vitro. These results showed that root and extraradical mycelium development were intimately associated in a sequence where both grew together during active root growth, followed during root aging by a period in which only the fungus developed. Spore production appeared dependent on a critical extraradical mycelium biomass on the re-allocation of resources from both the intraradical mycelium and the auxiliary cells via the hyphal network. |
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Palavras-Chave: |
Scutellospora reticulata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01624naa a2200169 a 4500
001 1625778
005 2004-05-14
008 2004 bl --- 0-- u #d
100 1 $aDECLERCK, S.
245 $aDevelopment of extraradical mycelium of Scutellopora reticulata under root-organ culture$bspore production and function of auxiliary cells.
260 $c2004
520 $aThe development of the extraradical mycelium and auxiliary cells and spore production of Scutellospora reticulata in association with Ri-DNA transformed carrot was followed under root-organ culture conditions. Extraradical mycelium development followed classical lag-exponential-plateau phases, with an additional late decline phase en number of auxiliary cells. Spore production started in parallel with a critical extraradical mycelium biomass produced, continued long after root growth ceased and during the late decline in auxiliary cells were shown to exhibit hyphal re-growth, but not root colonization, either in situ or in vitro. These results showed that root and extraradical mycelium development were intimately associated in a sequence where both grew together during active root growth, followed during root aging by a period in which only the fungus developed. Spore production appeared dependent on a critical extraradical mycelium biomass on the re-allocation of resources from both the intraradical mycelium and the auxiliary cells via the hyphal network.
653 $aScutellospora reticulata
700 1 $aD'OR, D.
700 1 $aBIVORT, C.
700 1 $aSOUZA, F. A. de
773 $tMycological Research, New York$gv.108. n. 1, p. 84-92, jan. 2004.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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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
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/06/2015 |
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Data da última atualização: |
23/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
AGUIAR JUNIOR, T. R.; RASERA, K.; PARRON, L. M.; BRITOD, A. G.; FERREIRA, M. T. |
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Afiliação: |
T.R. Aguiar Junior, UFPR; K. Rasera, UFPR; LUCILIA MARIA PARRON VARGAS, CNPF; A.G. Britod, Univesity of Lisbon; M.T. Ferreira, University of Lisbon. |
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Título: |
Nutrient removal effectiveness by riparian buffer zones in rural temperate watersheds: the impact of no-till crops practices. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Agricultural Water Management, v. 149, p. 74-80, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
tRiparian buffer zones have the potential to capture chemical contaminants and to mitigate detrimentalside-effects in aquatic ecosystems derived from excess fertilizers used in agro-food production. No-tillfarming systems are well known agricultural practices and are widely used in temperate areas. In thatregard, different settings and widths of riparian buffer zones (12, 24, 36, 48 and 60 m) with woody veg-etation, shrubs or grasses were assessed. The methodology was comprised of the evaluation of a largenumber of experimental sites and the sampling was conducted after the first rain period and respectivefertilizer applications. The results point to the fact that effectiveness is largely controlled by buffer zonewidth and vegetation type. Indeed, buffer zones with 60 m width composed of woody soils were moreeffective in phosphorus (99.9%) and nitrogen (99.9%) removal when compared to shrub (66.4% and 83.9%,respectively) or grass vegetation (52.9% and 61.6%, respectively) areas. Woody vegetation has deep roo-ting systems and woody soils have a higher content of organic matter when compared to grass and shrubsareas. |
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Thesagro: |
Água; Clima Temperado; Contaminação; Fósforo; Nitrogênio; Nutriente; Plantio Direto. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01879naa a2200253 a 4500
001 2016876
005 2016-02-23
008 2015 bl uuuu u00u1 u #d
100 1 $aAGUIAR JUNIOR, T. R.
245 $aNutrient removal effectiveness by riparian buffer zones in rural temperate watersheds$bthe impact of no-till crops practices.$h[electronic resource]
260 $c2015
520 $atRiparian buffer zones have the potential to capture chemical contaminants and to mitigate detrimentalside-effects in aquatic ecosystems derived from excess fertilizers used in agro-food production. No-tillfarming systems are well known agricultural practices and are widely used in temperate areas. In thatregard, different settings and widths of riparian buffer zones (12, 24, 36, 48 and 60 m) with woody veg-etation, shrubs or grasses were assessed. The methodology was comprised of the evaluation of a largenumber of experimental sites and the sampling was conducted after the first rain period and respectivefertilizer applications. The results point to the fact that effectiveness is largely controlled by buffer zonewidth and vegetation type. Indeed, buffer zones with 60 m width composed of woody soils were moreeffective in phosphorus (99.9%) and nitrogen (99.9%) removal when compared to shrub (66.4% and 83.9%,respectively) or grass vegetation (52.9% and 61.6%, respectively) areas. Woody vegetation has deep roo-ting systems and woody soils have a higher content of organic matter when compared to grass and shrubsareas.
650 $aÁgua
650 $aClima Temperado
650 $aContaminação
650 $aFósforo
650 $aNitrogênio
650 $aNutriente
650 $aPlantio Direto
700 1 $aRASERA, K.
700 1 $aPARRON, L. M.
700 1 $aBRITOD, A. G.
700 1 $aFERREIRA, M. T.
773 $tAgricultural Water Management$gv. 149, p. 74-80, 2015.
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Embrapa Florestas (CNPF) |
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