Biosafety assessment of transgenic poplars [Populus] overexpressing xyloglucanase (AaXEG2) prior to field trials

We performed biosafety assessments of transgenic poplars prior to field trials. Constitutive expression of the Aspergillus aculeatus xyloglucanase in Populus alba increased the cellulose content and specific gravity of its stem, the leaves of which were visibly greener, thicker, and smaller than tho...

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Bibliographic Details
Published in:Journal of wood science 2008-10, Vol.54 (5), p.408-413
Main Authors: Taniguchi, T.(Forestry and Forest Products Research Inst., Hitachi, Ibaraki (Japan)), Ohmiya. Y, Kurita, M, Tsubomura, M, Kondo, T, Park, Y.W, Baba, K, Hayashi, T
Format: Article
Language:English
Subjects:
Aspergillus aculeatus
Assessments
Biodiversity
Biomedical and Life Sciences
BIOSAFETY
Biosafety assessment
BIOSECURITE
BIOSEGURIDAD
Characterization and Evaluation of Materials
EVALUACION DE RIESGOS
EVALUATION DU RISQUE
EXPERIMENTACION EN CAMPO
EXPERIMENTATION AU CHAMP
EXPRESION GENICA
EXPRESSION DES GENES
FIELD EXPERIMENTATION
Field trial
GENE EXPRESSION
GLICOSIDASAS
GLYCOSIDASE
GLYCOSIDASES
GREENHOUSES
INVERNADEROS
Life Sciences
Materials Science
PLANTAS TRANSGENICAS
PLANTE TRANSGENIQUE
Poplar
POPULUS ALBA
RISK ASSESSMENT
SERRE
Specific gravity
TRANSGENIC PLANTS
Transgenic poplars
Wood Science & Technology
Xyloglucanase
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Summary:We performed biosafety assessments of transgenic poplars prior to field trials. Constitutive expression of the Aspergillus aculeatus xyloglucanase in Populus alba increased the cellulose content and specific gravity of its stem, the leaves of which were visibly greener, thicker, and smaller than those of the wild-type plant. Although the young transgenic poplars grew faster than the wild type in a growth chamber, there was no distinguishable difference in growth between the poplars when they were placed in a special screened greenhouse. Allelopathic tests showed that the transgenic poplars do not produce harmful substances. Based on all the biosafety assessments and the scientific literature on poplar species, we came to the conclusion that transgenic poplars probably do not disturb the biological diversity of the surrounding environment, even when they are submitted to field trials.
ISSN:1435-0211
1611-4663
DOI:10.1007/s10086-008-0967-3