Field and pulping performances of transgenic trees with altered lignification.
Nat Biotechnol
; 20(6): 607-12, 2002 Jun.
Article
em En
| MEDLINE
| ID: mdl-12042866
ABSTRACT
The agronomic and pulping performance of transgenic trees with altered lignin has been evaluated in duplicated, long-term field trials. Poplars expressing cinnamyl alcohol dehydrogenase (CAD) or caffeate/5-hydroxy-ferulate O-methyltransferase (COMT) antisense transgenes were grown for four years at two sites, in France and England. The trees remained healthy throughout the trial. Growth indicators and interactions with insects were normal. No changes in soil microbial communities were detected beneath the transgenic trees. The expected modifications to lignin were maintained in the transgenics over four years, at both sites. Kraft pulping of tree trunks showed that the reduced-CAD lines had improved characteristics, allowing easier delignification, using smaller amounts of chemicals, while yielding more high-quality pulp. This work highlights the potential of engineering wood quality for more environmentally benign papermaking without interfering with tree growth or fitness.
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Base de dados:
MEDLINE
Assunto principal:
Madeira
/
Plantas Geneticamente Modificadas
/
Populus
/
Lignina
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
País/Região como assunto:
Europa
Idioma:
En
Revista:
Nat Biotechnol
Assunto da revista:
BIOTECNOLOGIA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
França