2026-05-31T04:32:08Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/119362026-02-03T12:33:18Zcom_10630_2254col_10630_37959
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Pascual-Moreno, María Belén
author
Cañas-Pendón, Rafael Antonio
author
Craven-Bartle, Blanca
author
Cánovas-Ramos, Francisco Miguel
author
Ávila-Sáez, Concepción
2016-09-02T10:19:33Z
2016-09-02T10:19:33Z
2016-09-02
http://hdl.handle.net/10630/11936
P2-2
NAC-MYB-BASED TRANSCRIPCIONAL NETWORK
INVOLVED IN THE REGULATION OF PHENYLALANINE
BIOSYNTHESIS IN P. PINASTER
Mª Belén Pascual, Rafael A. Cañas, Blanca Craven-Bartle,
Francisco M. Cánovas and Concepción Ávila
Departamento de Biología Molecular y Bioquímica. Facultad de Ciencias.
Universidad de Málaga. Campus de teatinos s/n, Málaga, Spain
Email: cavila@uma.es
Conifer trees divert large quantities of carbon into the biosynthesis of
phenylpropanoids, particularly to generate lignin, an important
constituent of wood. Since phenylalanine is the precursor for
phenylpropanoid biosynthesis, the precise regulation of
phenylalanine synthesis and use should occur simultaneously. This
crucial pathway is finely regulated primarily at the transcriptional
level. Transcriptome analyses indicate that the transcription factors
(TFs) preferentially expressed during wood formation in plants
belong to the MYB and NAC families. Craven-Bartle et al. (2013)
have shown that Myb8 is a candidate regulator of key genes in
phenylalanine biosynthesis involved in the supply of the
phenylpropane carbon skeleton necessary for lignin biosynthesis.
This TF is able to bind AC elements present in the promoter regions
of these genes to activate transcription. In Arabidopsis, the
transcriptional network controlling secondary cell wall involves
NAC-domain regulators operating upstream Myb transcription
factors. We have identified in the P. pinaster genome three NAC
proteins as potential candidates to be involved in vascular
development. One of them, PpNAC1 is expressed both in xylem and
compression wood from adult trees and has been thoroughly
characterized. Its role upstream the transcriptional network
involving Myb8 will be discussed. The understanding of the
transcriptional regulatory network associated to phenylpropanoids
and lignin biosynthesis in conifers is crucial for future applications in
tree improvement and sustainable forest management.
eng
by
Coníferas - Congresos
NAC-MYB basedtranscriptional networkinvolved in the regulation of phenylalanine biosynthesis in P. pinaster
conference output
CjEuIEFjZXB0YW5kbyBlc3RhIGxpY2VuY2lhLCB1c3RlZCAoZWwgYXV0b3IvZXMgbyBlbCBwcm9waWV0YXJpby9zIGRlIGxvcyBkZXJlY2hvcyBkZSBhdXRvcikgZ2FyYW50aXphIGEgbGEgVW5pdmVyc2lkYWQgZGUgTcOhbGFnYSBlbCBkZXJlY2hvIG5vIGV4Y2x1c2l2byBkZSBhcmNoaXZhciwgcmVwcm9kdWNpciwgY29udmVydGlyIChjb21vIHNlIGRlZmluZSBtw6FzIGFiYWpvKSwgY29tdW5pY2FyIHkvbyBkaXN0cmlidWlyIHN1IGRvY3VtZW50byBtdW5kaWFsbWVudGUgZW4gZm9ybWF0byBlbGVjdHLDs25pY28uCgoyLiBUYW1iacOpbiBlc3TDoSBkZSBhY3VlcmRvIGNvbiBxdWUgbGEgVW5pdmVyc2lkYWQgZGUgTcOhbGFnYSBwdWVkYSBjb25zZXJ2YXIgbcOhcyBkZSB1bmEgY29waWEgZGUgZXN0ZSBkb2N1bWVudG8geSwgc2luIGFsdGVyYXIgc3UgY29udGVuaWRvLCBjb252ZXJ0aXJsbyBhIGN1YWxxdWllciBmb3JtYXRvIGRlIGZpY2hlcm8sIG1lZGlvIG8gc29wb3J0ZSwgcGFyYSBwcm9ww7NzaXRvcyBkZSBzZWd1cmlkYWQsIHByZXNlcnZhY2nDs24geSBhY2Nlc28uCgozLiBEZWNsYXJhIHF1ZSBlbCBkb2N1bWVudG8gZXMgdW4gdHJhYmFqbyBvcmlnaW5hbCBzdXlvIHkvbyBxdWUgdGllbmUgZWwgZGVyZWNobyBwYXJhIG90b3JnYXIgbG9zIGRlcmVjaG9zIGNvbnRlbmlkb3MgZW4gZXN0YSBsaWNlbmNpYS4gVGFtYmnDqW4gZGVjbGFyYSBxdWUgc3UgZG9jdW1lbnRvIG5vIGluZnJpbmdlLCBlbiB0YW50byBlbiBjdWFudG8gbGUgc2VhIHBvc2libGUgc2FiZXIsIGxvcyBkZXJlY2hvcyBkZSBhdXRvciBkZSBuaW5ndW5hIG90cmEgcGVyc29uYSBvIGVudGlkYWQuCgo0LiBTaSBlbCBkb2N1bWVudG8gY29udGllbmUgbWF0ZXJpYWxlcyBkZSBsb3MgY3VhbGVzIG5vIHRpZW5lIGxvcyBkZXJlY2hvcyBkZSBhdXRvciwgZGVjbGFyYSBxdWUgaGEgb2J0ZW5pZG8gZWwgcGVybWlzbyBzaW4gcmVzdHJpY2Npw7NuIGRlbCBwcm9waWV0YXJpbyBkZSBsb3MgZGVyZWNob3MgZGUgYXV0b3IgcGFyYSBvdG9yZ2FyIGEgbGEgVW5pdmVyc2lkYWQgZGUgTcOhbGFnYSBsb3MgZGVyZWNob3MgcmVxdWVyaWRvcyBwb3IgZXN0YSBsaWNlbmNpYSwgeSBxdWUgZXNlIG1hdGVyaWFsIGN1eW9zIGRlcmVjaG9zIHNvbiBkZSB0ZXJjZXJvcyBlc3TDoSBjbGFyYW1lbnRlIGlkZW50aWZpY2FkbyB5IHJlY29ub2NpZG8gZW4gZWwgdGV4dG8gbyBjb250ZW5pZG8gZGVsIGRvY3VtZW50byBlbnRyZWdhZG8uCgo1LiBTaSBlbCBkb2N1bWVudG8gc2UgYmFzYSBlbiB1bmEgb2JyYSBxdWUgaGEgc2lkbyBwYXRyb2NpbmFkYSBvIGFwb3lhZGEgcG9yIHVuYSBhZ2VuY2lhIHUgb3JnYW5pemFjacOzbiBkaWZlcmVudGUgZGUgbGEgVW5pdmVyc2lkYWQgZGUgTcOhbGFnYSwgc2UgcHJlc3Vwb25lIHF1ZSBzZSBoYSBjdW1wbGlkbyBjb24gY3VhbHF1aWVyIGRlcmVjaG8gZGUgcmV2aXNpw7NuIHUgb3RyYXMgb2JsaWdhY2lvbmVzIHJlcXVlcmlkYXMgcG9yIGVzdGUgY29udHJhdG8gbyBhY3VlcmRvLgoKNi4gTGEgVW5pdmVyc2lkYWQgZGUgTcOhbGFnYSBpZGVudGlmaWNhcsOhIGNsYXJhbWVudGUgc3UvcyBub21icmUvcyBjb21vIGVsL2xvcyBhdXRvci9lcyBvIHByb3BpZXRhcmlvL3MgZGUgbG9zIGRlcmVjaG9zIGRlbCBkb2N1bWVudG8sIHkgbm8gaGFyw6EgbmluZ3VuYSBhbHRlcmFjacOzbiBkZSBzdSBkb2N1bWVudG8gZGlmZXJlbnRlIGEgbGFzIHBlcm1pdGlkYXMgZW4gZXN0YSBsaWNlbmNpYS4KCg==
URL
https://riuma.uma.es/bitstreams/ef02389d-bbf4-4517-909d-1d64dc20b30d/download
File
MD5
3fa13ec2b02bd69a1c763d227ce4123a
105778
application/pdf
Belen (N).pdf
URL
https://riuma.uma.es/bitstreams/a6fefc3f-1394-4ba0-a4a2-2db2fa8e0637/download
File
MD5
6b30379a23b1c47644b5786039c4f4b0
6
text/plain
Belen (N).pdf.txt