Tissue-specific study across the stem reveals the chemistry and transcriptome dynamics of birch bark.

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Alonso Serra , J A , Safronov , O , Lim , K-J , Fraser-Miller , S , Blokhina , O B , Campilho , A , Chong , S-L , Fagerstedt , K V , Haavikko , R H , Helariutta , Y , Immanen , J J M , Kangasjärvi , J S , Kauppila , T J , Lehtonen , M , Ragni , L , Rajaraman , S , Räsänen , R-M , Safdari , P , Tenkanen , T M , Yli-Kauhaluoma , J T , Teeri , T H , Strachan , C J , Nieminen , K & Salojärvi , J T 2019 , ' Tissue-specific study across the stem reveals the chemistry and transcriptome dynamics of birch bark. ' , New Phytologist , vol. 222 , no. 4 , pp. 1816-1831 . https://doi.org/10.1111/nph.15725

Title: Tissue-specific study across the stem reveals the chemistry and transcriptome dynamics of birch bark.
Author: Alonso Serra, Juan Antonio; Safronov, Omid; Lim, Kean-Jin; Fraser-Miller, Sara; Blokhina, Olga Borisovna; Campilho, Ana; Chong, Sun-Li; Fagerstedt, Kurt Valter; Haavikko, Raisa Hannele; Helariutta, Ykä; Immanen, Juha Jouko Matias; Kangasjärvi, Jaakko Sakari; Kauppila, Tiina J.; Lehtonen, Mari; Ragni, Laura; Rajaraman, Sitaram; Räsänen, Riikka-Marjaana; Safdari, Pezhman; Tenkanen, Tiina Maija; Yli-Kauhaluoma, Jari Tapani; Teeri, Teemu Heikki; Strachan, Clare Joanna; Nieminen, Kaisa; Salojärvi, Jarkko Tapani
Contributor organization: Institute of Biotechnology
Viikki Plant Science Centre (ViPS)
Plant-Fungal Interactions Group
Plant ROS-Signalling
Bioinformatics for Molecular Biology and Genomics (BMBG)
Department of Agricultural Sciences
Organismal and Evolutionary Biology Research Programme
External Funding
Department of Food and Nutrition
Oxygen stress tolerance and lignin biosynthesis group
Plant Biology
Division of Pharmaceutical Chemistry and Technology
Yrjö Helariutta / Principal Investigator
Faculty of Biological and Environmental Sciences
Drug Research Program
Tiina Kauppila / Principal Investigator
Research Centre for Ecological Change
Pharmaceutical Design and Discovery group
Jari Yli-Kauhaluoma / Principal Investigator
Teemu Teeri / Principal Investigator
Plant Production Sciences
Asteraceae developmental biology and secondary metabolism
Formulation and industrial pharmacy
Clare Strachan / Research Group
Date: 2019-06
Language: eng
Number of pages: 16
Belongs to series: New Phytologist
ISSN: 0028-646X
DOI: https://doi.org/10.1111/nph.15725
URI: http://hdl.handle.net/10138/302029
Abstract: Tree bark is a highly specialized array of tissues that plays important roles in plant protection and development. Bark tissues develop from two lateral meristems; the phellogen (cork cambium) produces the outermost stem-environment barrier called the periderm, while the vascular cambium contributes with phloem tissues. Although bark is diverse in terms of tissues, functions and species, it remains understudied at higher resolution. We dissected the stem of silver birch (Betula pendula) into eight major tissue types, and characterized these by a combined transcriptomics and metabolomics approach. We further analyzed the varying bark types within the Betulaceae family. The two meristems had a distinct contribution to the stem transcriptomic landscape. Furthermore, inter- and intraspecies analyses illustrated the unique molecular profile of the phellem. We identified multiple tissue-specific metabolic pathways, such as the mevalonate/betulin biosynthesis pathway, that displayed differential evolution within the Betulaceae. A detailed analysis of suberin and betulin biosynthesis pathways identified a set of underlying regulators and highlighted the important role of local, small-scale gene duplication events in the evolution of metabolic pathways. This work reveals the transcriptome and metabolic diversity among bark tissues and provides insights to its development and evolution, as well as its biotechnological applications.
Subject: 1182 Biochemistry, cell and molecular biology
Betula pendula (silver birch)
genome evolution
metabolic pathways
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

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