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description Publicationkeyboard_double_arrow_right Article , Conference object , Journal 2013 Germany, FrancePublisher:Public Library of Science (PLoS) Funded by:EC | ENERGYPOPLAREC| ENERGYPOPLARAuthors: Danielsen, Lara; Lohaus, Gertrud; Sirrenberg, Anke;Karlovsky, Petr;
+3 AuthorsKarlovsky, Petr
Karlovsky, Petr in OpenAIREDanielsen, Lara; Lohaus, Gertrud; Sirrenberg, Anke;Karlovsky, Petr;
Bastien, Catherine;Karlovsky, Petr
Karlovsky, Petr in OpenAIREPilate, Gilles;
Pilate, Gilles
Pilate, Gilles in OpenAIREPolle, Andrea;
Polle, Andrea
Polle, Andrea in OpenAIREWood from biomass plantations with fast growing tree species such as poplars can be used as an alternative feedstock for production of biofuels. To facilitate utilization of lignocellulose for saccharification, transgenic poplars with modified or reduced lignin contents may be useful. However, the potential impact of poplars modified in the lignification pathway on ectomycorrhizal (EM) fungi, which play important roles for plant nutrition, is not known. The goal of this study was to investigate EM colonization and community composition in relation to biomass and nutrient status in wildtype (WT, Populus tremula × Populus alba) and transgenic poplar lines with suppressed activities of cinnamyl alcohol dehydrogenase, caffeate/5-hydroxyferulate O-methyltransferase, and cinnamoyl-CoA reductase in a biomass plantation. In different one-year-old poplar lines EM colonization varied from 58% to 86%, but the EM community composition of WT and transgenic poplars were indistinguishable. After two years, the colonization rate of all lines was increased to about 100%, but separation of EM communities between distinct transgenic poplar genotypes was observed. The differentiation of the EM assemblages was similar to that found between different genotypes of commercial clones of Populus × euramericana. The transgenic poplars exhibited significant growth and nutrient element differences in wood, with generally higher nutrient accumulation in stems of genotypes with lower than in those with higher biomass. A general linear mixed model simulated biomass of one-year-old poplar stems with high accuracy (adjusted R(2) = 97%) by two factors: EM colonization and inverse wood N concentration. These results imply a link between N allocation and EM colonization, which may be crucial for wood production in the establishment phase of poplar biomass plantations. Our data further support that multiple poplar genotypes regardless whether generated by transgenic approaches or conventional breeding increase the variation in EM community composition in biomass plantations.
Hyper Article en Lig... arrow_drop_down Publikationenserver der Georg-August-Universität GöttingenArticle . 2013 . Peer-reviewedLicense: CC BYINRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverInstitut National de la Recherche Agronomique: ProdINRAArticle . 2013License: CC-BY-ND-NCData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down Publikationenserver der Georg-August-Universität GöttingenArticle . 2013 . Peer-reviewedLicense: CC BYINRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverInstitut National de la Recherche Agronomique: ProdINRAArticle . 2013License: CC-BY-ND-NCData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1371/journal.pone.0059207&type=result"></script>'); --> </script>
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