Document Detail

The poplar MYB transcription factors, PtrMYB3 and PtrMYB20, are involved in the regulation of secondary wall biosynthesis.
MedLine Citation:
PMID:  20427511     Owner:  NLM     Status:  MEDLINE    
Dicot wood is mainly composed of cellulose, xylan and lignin, and its formation requires the coordinated regulation of their biosynthesis. In this report, we demonstrate that the poplar wood-associated MYB transcriptional activators, PtrMYB3 and PtrMYB20, activate the biosynthetic pathways of cellulose, xylan and lignin when overexpressed in Arabidopsis and they are also able to activate the promoter activities of poplar wood biosynthetic genes. We also show that PtrMYB3 and PtrMYB20 are functional orthologs of Arabidopsis MYB46 and MYB83, and their expression is directly activated by poplar PtrWND2, suggesting their involvement in the regulation of wood formation in poplar.
Ryan L McCarthy; Ruiqin Zhong; Scott Fowler; David Lyskowski; Hasanthi Piyasena; Kara Carleton; Charles Spicer; Zheng-Hua Ye
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-04-28
Journal Detail:
Title:  Plant & cell physiology     Volume:  51     ISSN:  1471-9053     ISO Abbreviation:  Plant Cell Physiol.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-11     Completed Date:  2010-09-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9430925     Medline TA:  Plant Cell Physiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1084-90     Citation Subset:  IM    
Department of Plant Biology, University of Georgia, Athens, GA 30602, USA.
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MeSH Terms
Arabidopsis / genetics,  metabolism
Cell Wall / metabolism*
Cellulose / biosynthesis*
Gene Expression Regulation, Plant
Genes, myb
Plant Proteins / genetics,  metabolism*
Plants, Genetically Modified / genetics,  metabolism
Populus / genetics*,  metabolism
Promoter Regions, Genetic
RNA, Plant / genetics
Transcription Factors / genetics,  metabolism*
Wood / genetics,  growth & development
Reg. No./Substance:
0/Plant Proteins; 0/RNA, Plant; 0/Transcription Factors; 9004-34-6/Cellulose

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