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Registro Completo |
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: |
LEADER 01788naa a2200181 a 4500 001 1623829 005 1999-04-06 008 1999 bl --- 0-- u #d 100 1 $aDE SOUZA, F. A. de 245 $aOntogeny of Glomus clarum in Ri T-DNA transformed roots. 260 $c1999 520 $aThe 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. 650 $ataxonomy 650 $avesicular arbuscular mycorrhizae 650 $aMicorriza Vesicular Arbuscular 650 $aTaxonomia 700 1 $aBERBARA, R. L. L. 773 $tMycologia, New York$gv. 91, n .2, p. 343-350, 1999.
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Embrapa Agrobiologia (CNPAB) |
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Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
13/09/2001 |
Data da última atualização: |
13/03/2008 |
Autoria: |
SOUZA, P. I. M.; MOREIRA, C. T.; FARIAS NETO, A. L.; ABUD, S.; ARANTES, N. E.; FARIA, L. C. |
Título: |
Comportamento e descricao da cultivar de BRS Nina para o Estado de Mato Grosso. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 23., 2001, Londrina. Resumos... Londrina: Embrapa Soja, 2001. |
Páginas: |
p.73-74. |
Série: |
(Embrapa Soja. Documentos, 157). |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Mato Grosso. |
Thesagro: |
Melhoramento Genético Vegetal; Soja. |
Thesaurus NAL: |
Brazil; plant breeding; soybeans. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00833naa a2200277 a 4500 001 1456918 005 2008-03-13 008 2001 bl uuuu u00u1 u #d 100 1 $aSOUZA, P. I. M. 245 $aComportamento e descricao da cultivar de BRS Nina para o Estado de Mato Grosso. 260 $c2001 300 $ap.73-74. 490 $a(Embrapa Soja. Documentos, 157). 650 $aBrazil 650 $aplant breeding 650 $asoybeans 650 $aMelhoramento Genético Vegetal 650 $aSoja 653 $aBrasil 653 $aMato Grosso 700 1 $aMOREIRA, C. T. 700 1 $aFARIAS NETO, A. L. 700 1 $aABUD, S. 700 1 $aARANTES, N. E. 700 1 $aFARIA, L. C. 773 $tIn: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 23., 2001, Londrina. Resumos... Londrina: Embrapa Soja, 2001.
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