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Biblioteca(s):  Embrapa Florestas.
Data corrente:  22/09/2008
Data da última atualização:  22/09/2008
Autoria:  BISPO, A.; CREAMER, R.; DOMBOS, M.; FUCHS, M.; GRAEFE, U.; SOUSA, J. P.; PERES, G.; ROMBKE, J.; RUTGERS, M.; WINDING, A.
Título:  Monitoring the decline of soil biodiversity in European soils.
Ano de publicação:  2008
Fonte/Imprenta:  In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
Idioma:  Inglês
Conteúdo:  The soil biota have important fundamental roles in soil processes and contribute both directly and indirectly to many important ecosystem functions such as nutrient cycling, soil structure, decomposition of organic matter. It is essential to understand the importance of species diversity in soil and their impact upon soil quality and function. The EU project ENVASSO (Environmental Assessment of Soil for Monitoring) addressed the 8 threats to soil identified by the Commission (CEC, 2002). The aim of the project was to design and test a single, integrated and operational set of EU-wide criteria and indicators that will provide a basis for a harmonised comprehensive soil and land information system for monitoring in Europe. To identify suitable indicators for monitoring the decline in soil biodiversity, indicators were selected both from a literature review and an inventory of national monitoring EU programmes. Within this project decline in soil biodiversity was defined as the reduction of forms of life living in soils (both in terms of quantity and variety) and of related functions, causing a deterioration or loss of one or more soil functions. Whereas the literature review allows the identification of about 100 possible indicators the inventory of existing monitoring networks shows that few indicators are really measured. For monitoring application it was considered that only 3 key indicators per soil stress were practical, however this was considered a difficult task for in... Mostrar Tudo
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Florestas (CNPF)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPF43646 - 1UPEPL - --CD0305
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Biblioteca(s):  Embrapa Agrobiologia.
Data corrente:  06/04/1999
Data da última atualização:  06/04/1999
Autoria:  DE SOUZA, F. A. de; BERBARA, R. L. L.
Título:  Ontogeny of Glomus clarum in Ri T-DNA transformed roots.
Ano de publicação:  1999
Fonte/Imprenta:  Mycologia, New York, v. 91, n .2, p. 343-350, 1999.
Idioma:  Inglês
Conteúdo:  The spore ontogeny of Glomus clarum was monitored during the nonsymtiotic growth phase and after the colonization in transformed roots of clover (Trifolium repens) and carrot (Daucus carota). The germinated spore in water agar produced spore-like vesicles during the nonsymbiotic phase. It has been shown that these structures were in fact juvenile spores, that after root colonization were able to form mature spores. G. clarum began the spore formation in its nonsymbiotic phase. However, the juvenile spore structures senesced without establishment of an effective symbiosis. Spores of the genus Glomus are assumed to form terminally from sporogenic hyphae, but the ontogeny of G. clarum in transformed roots demonstrates that sporogenesis can also involve intercalary sporelike vesicles formed along the sporogenic hyphae. Using root organ culture system, all steps of spore formation can be followed in vivo without disturbing the system. This technique provides a better way to visualise events that occur during the pre- and postcolonization phase of arbuscular mycorrhiza, allowing the comprehension of full life cycle of this fungi. There are morphological variations in the ontogeny of G. clarum spores which differentiate its pattern from other Glomus species.
Thesagro:  Micorriza Vesicular Arbuscular; Taxonomia.
Thesaurus NAL:  taxonomy; vesicular arbuscular mycorrhizae.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Agrobiologia (CNPAB)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPAB26601 - 1UPCSP - --0023060
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