Differential expression patterns reveal the roles of cellulose synthase genes (CesAs) in primary and secondary cell wall biosynthesis in Miscanthus × giganteus

2020 ◽  
Vol 145 ◽  
pp. 112129 ◽  
Author(s):  
Xiaofei Zeng ◽  
Jiajing Sheng ◽  
Fenglin Zhu ◽  
Lingling Zhao ◽  
Xiaohu Hu ◽  
...  
Keyword(s):  
Cell Wall ◽  
Differential Expression ◽  
Secondary Cell Wall ◽  
Expression Patterns ◽  
Cellulose Synthase ◽  
Cell Wall Biosynthesis ◽  
Secondary Cell Wall Biosynthesis ◽  
Miscanthus Giganteus

scholarly journals NAC-MYB-based transcriptional regulation of secondary cell wall biosynthesis in land plants

2015 ◽  
Vol 6 ◽  
Author(s):  
Yoshimi Nakano ◽  
Masatoshi Yamaguchi ◽  
Hitoshi Endo ◽  
Nur Ardiyana Rejab ◽  
Misato Ohtani
Keyword(s):  
Cell Wall ◽  
Transcriptional Regulation ◽  
Secondary Cell Wall ◽  
Land Plants ◽  
Cell Wall Biosynthesis ◽  
Secondary Cell Wall Biosynthesis

scholarly journals PdWND3A, a wood-associated NAC domain-containing protein, affects lignin biosynthesis and composition in Populus

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Yongil Yang ◽  
Chang Geun Yoo ◽  
William Rottmann ◽  
Kimberly A. Winkeler ◽  
Cassandra M. Collins ◽  
...  
Keyword(s):  
Cell Wall ◽  
Transcription Factor ◽  
Transgenic Plants ◽  
Secondary Cell Wall ◽  
Lignin Biosynthesis ◽  
Cell Wall Biosynthesis ◽  
Wild Type ◽  
Nac Domain ◽  
Sugar Release ◽  
Secondary Cell Wall Biosynthesis

Abstract Background Plant secondary cell wall is a renewable feedstock for biofuels and biomaterials production. Arabidopsis VASCULAR-RELATED NAC DOMAIN (VND) has been demonstrated to be a key transcription factor regulating secondary cell wall biosynthesis. However, less is known about its role in the woody species. Results Here we report the functional characterization of Populus deltoides WOOD-ASSOCIATED NAC DOMAIN protein 3 (PdWND3A), a sequence homolog of Arabidopsis VND4 and VND5 that are members of transcription factor networks regulating secondary cell wall biosynthesis. PdWND3A was expressed at higher level in the xylem than in other tissues. The stem tissues of transgenic P. deltoides overexpressing PdWND3A (OXPdWND3A) contained more vessel cells than that of wild-type plants. Furthermore, lignin content and lignin monomer syringyl and guaiacyl (S/G) ratio were higher in OXPdWND3A transgenic plants than in wild-type plants. Consistent with these observations, the expression of FERULATE 5-HYDROXYLASE1 (F5H1), encoding an enzyme involved in the biosynthesis of sinapyl alcohol (S unit monolignol), was elevated in OXPdWND3A transgenic plants. Saccharification analysis indicated that the rate of sugar release was reduced in the transgenic plants. In addition, OXPdWND3A transgenic plants produced lower amounts of biomass than wild-type plants. Conclusions PdWND3A affects lignin biosynthesis and composition and negatively impacts sugar release and biomass production.

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