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Studying Secondary Growth and Bast Fiber Development: The Hemp Hypocotyl Peeks behind the Wall
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SYSNO ASEP 0467537 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Studying Secondary Growth and Bast Fiber Development: The Hemp Hypocotyl Peeks behind the Wall Author(s) Behr, M. (DE)
Legay, S. (LU)
Žižková, Eva (UEB-Q) ORCID
Motyka, Václav (UEB-Q) RID, ORCID
Dobrev, Petre (UEB-Q) RID, ORCID
Hausman, J.F. (LU)
Lutts, S. (BE)
Guerriero, G. (LU)Number of authors 8 Article number 1733 Source Title Frontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
Roč. 7, NOV 18 (2016)Number of pages 19 s. Language eng - English Country CH - Switzerland Keywords plant-cell-wall ; arabidopsis-thaliana ; cannabis-sativa ; lignin biosynthesis ; microarray analysis ; gene-expression ; in-silico ; anthocyanin biosynthesis ; arabinogalactan-protein ; transcription factors ; Cannabis sativa ; hypocotyl ; bast fibers ; cell wall ; RNA-Seq ; immunohistochemistry ; phytohormones Subject RIV EF - Botanics R&D Projects GA16-14649S GA ČR - Czech Science Foundation (CSF) Institutional support UEB-Q - RVO:61389030 UT WOS 000388034800001 DOI 10.3389/fpls.2016.01733 Annotation Cannabis sativa L. is an annual herbaceous crop grown for the production of long extraxylary fibers, the bast fibers, rich in cellulose and used both in the textile and biocomposite sectors. Despite being herbaceous, hemp undergoes secondary growth and this is well exemplified by the hypocotyl. The hypocotyl was already shown to be a suitable model to study secondary growth in other herbaceous species, namely Arabidopsis thaliana and it shows an important practical advantage, i.e., elongation and radial thickening are temporally separated. This study focuses on the mechanisms marking the transition from primary to secondary growth in the hemp hypocotyl by analysing the suite of events accompanying vascular tissue and bast fiber development. Transcriptomics, imaging and quantification of phytohormones were carried out on four representative developmental stages (i.e., 6-9-15-20 days after sowing) to provide a comprehensive overview of the events associated with primary and secondary growth in hemp. This multidisciplinary approach provides cell wall-related snapshots of the growing hemp hypocotyl and identifies marker genes associated with the young (expansins, beta-galactosidases, and transcription factors involved in light related processes) and the older hypocotyl (secondary cell wall biosynthetic genes and transcription factors). Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2017
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