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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/09/2008 |
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Data da última atualização: |
15/09/2008 |
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Autoria: |
GOEDE, R. de; HOFFLAND, E.; HELDER, H.; MULDER, C.; POSTHUMA, L. |
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Título: |
GM-crop impact assessment on soil ecosystems by DNA bare-code based monitoring of nematode communities (ERGONema). |
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Ano de publicação: |
2008 |
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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. |
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Idioma: |
Inglês |
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Conteúdo: |
Based on the recommendation of the Dutch Advisory commission on Genetic Modification
(Cogem) the Dutch government initiated a research program (Ecology Regarding Gene-modified
Organisms; ERGO) on the better ecological understanding of non-target effects of GM-crops on
soil ecosystem functioning. We will study such effects for the interactions between GM-crops,
nematodes and soil fertility in our ERGONema project, starting in 2008. The closest interactions
between a genetically modified (GM) crop and its environment take place in the rhizosphere
and during litter decomposition. A potentially relevant hazard scenario is that GM crops affect
these organisms, with consequences for soil fertility. Nematodes constitute a diverse group
within the soil fauna, feeding on bacteria, fungi, other nematodes and plant-roots. This intimate
feeding relationship with all major players in direct contact with plant residues implies that GMcrop
effects in the rhizosphere and on the decomposer community will be reflected in the nematode
community. However, nematodes look alike very much, and for large scale ecological analysis
of communities non-morphological characteristics should be used. DNA barcodes are being
developed for individual nematode families and quantitative PCR can be used to monitor changes
in the nematode community at a large scale with unprecedented resolution. The ERGONema
project aims to deliver guidance for a validated Ecological Risk Assessment (ERA) method to
evaluate potential risks of GM crops on soil biodiversity and fertility, using a quick, accurate and
affordable nematode DNA-based tool.
Activities:
? Establishment of the response window of a high impact, non-GM crop (i.e. positive control) on
nematode communities, using newly developed DNA-barcodes;
? Establishment of the response window of a high impact, non-GM crop on soil fertility;
? Determine the relationship between changes in nematode communities and soil fertility;
? Integration of the scientific findings of activities 1 and 2 into a draft ERA-guidance.
? Validate the newly developed procedure in GM crops under field conditions. MenosBased on the recommendation of the Dutch Advisory commission on Genetic Modification
(Cogem) the Dutch government initiated a research program (Ecology Regarding Gene-modified
Organisms; ERGO) on the better ecological understanding of non-target effects of GM-crops on
soil ecosystem functioning. We will study such effects for the interactions between GM-crops,
nematodes and soil fertility in our ERGONema project, starting in 2008. The closest interactions
between a genetically modified (GM) crop and its environment take place in the rhizosphere
and during litter decomposition. A potentially relevant hazard scenario is that GM crops affect
these organisms, with consequences for soil fertility. Nematodes constitute a diverse group
within the soil fauna, feeding on bacteria, fungi, other nematodes and plant-roots. This intimate
feeding relationship with all major players in direct contact with plant residues implies that GMcrop
effects in the rhizosphere and on the decomposer community will be reflected in the nematode
community. However, nematodes look alike very much, and for large scale ecological analysis
of communities non-morphological characteristics should be used. DNA barcodes are being
developed for individual nematode families and quantitative PCR can be used to monitor changes
in the nematode community at a large scale with unprecedented resolution. The ERGONema
project aims to deliver guidance for a validated Ecological Risk Assessment (ERA) method to
evaluate pote... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02897naa a2200169 a 4500
001 1314807
005 2008-09-15
008 2008 bl uuuu u00u1 u #d
100 1 $aGOEDE, R. de
245 $aGM-crop impact assessment on soil ecosystems by DNA bare-code based monitoring of nematode communities (ERGONema).
260 $c2008
520 $aBased on the recommendation of the Dutch Advisory commission on Genetic Modification (Cogem) the Dutch government initiated a research program (Ecology Regarding Gene-modified Organisms; ERGO) on the better ecological understanding of non-target effects of GM-crops on soil ecosystem functioning. We will study such effects for the interactions between GM-crops, nematodes and soil fertility in our ERGONema project, starting in 2008. The closest interactions between a genetically modified (GM) crop and its environment take place in the rhizosphere and during litter decomposition. A potentially relevant hazard scenario is that GM crops affect these organisms, with consequences for soil fertility. Nematodes constitute a diverse group within the soil fauna, feeding on bacteria, fungi, other nematodes and plant-roots. This intimate feeding relationship with all major players in direct contact with plant residues implies that GMcrop effects in the rhizosphere and on the decomposer community will be reflected in the nematode community. However, nematodes look alike very much, and for large scale ecological analysis of communities non-morphological characteristics should be used. DNA barcodes are being developed for individual nematode families and quantitative PCR can be used to monitor changes in the nematode community at a large scale with unprecedented resolution. The ERGONema project aims to deliver guidance for a validated Ecological Risk Assessment (ERA) method to evaluate potential risks of GM crops on soil biodiversity and fertility, using a quick, accurate and affordable nematode DNA-based tool. Activities: ? Establishment of the response window of a high impact, non-GM crop (i.e. positive control) on nematode communities, using newly developed DNA-barcodes; ? Establishment of the response window of a high impact, non-GM crop on soil fertility; ? Determine the relationship between changes in nematode communities and soil fertility; ? Integration of the scientific findings of activities 1 and 2 into a draft ERA-guidance. ? Validate the newly developed procedure in GM crops under field conditions.
700 1 $aHOFFLAND, E.
700 1 $aHELDER, H.
700 1 $aMULDER, C.
700 1 $aPOSTHUMA, L.
773 $tIn: 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.
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