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  • Bollhöner, BenjaminUmeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC) (author)

The function of two type II metacaspases in woody tissues of Populus trees

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2017-12-15
  • Wiley,2018
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-223251
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223251URI
  • https://doi.org/10.1111/nph.14945DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-145132URI
  • https://res.slu.se/id/publ/93869URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20180219
  • Metacaspases (MCs) are cysteine proteases that are implicated in programmed cell death of plants. AtMC9 (Arabidopsis thaliana Metacaspase9) is a member of the Arabidopsis MC family that controls the rapid autolysis of the xylem vessel elements, but its downstream targets in xylem remain uncharacterized. PttMC13 and PttMC14 were identified as AtMC9 homologs in hybrid aspen (Populustremulaxtremuloides). A proteomic analysis was conducted in xylem tissues of transgenic hybrid aspen trees which carried either an overexpression or an RNA interference construct for PttMC13 and PttMC14. The proteomic analysis revealed modulation of levels of both previously known targets of metacaspases, such as Tudor staphylococcal nuclease, heat shock proteins and 14-3-3 proteins, as well as novel proteins, such as homologs of the PUTATIVE ASPARTIC PROTEASE3 (PASPA3) and the cysteine protease RD21 by PttMC13 and PttMC14. We identified here the pathways and processes that are modulated by PttMC13 and PttMC14 in xylem tissues. In particular, the results indicate involvement of PttMC13 and/or PttMC14 in downstream proteolytic processes and cell death of xylem elements. This work provides a valuable reference dataset on xylem-specific metacaspase functions for future functional and biochemical analyses.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Jokipii-Lukkari, SoileUmeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC),Umeå University(Swepub:slu)102434 (author)
  • Bygdell, JoakimUmeå universitet,Kemiska institutionen,Umeå University(Swepub:slu)48658 (author)
  • Stael, Simon (author)
  • Adriasola, MathildaKTH,Skolan för bioteknologi (BIO)(Swepub:kth)u183a583 (author)
  • Muniz, LuisUmeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC) (author)
  • Van Breusegem, Frank (author)
  • Ezcurra, InesKTH,Industriell bioteknologi,Royal Institute of Technology (KTH)(Swepub:slu)48069 (author)
  • Wingsle, GunnarSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology(Swepub:slu)48677 (author)
  • Tuominen, HanneleUmeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)(Swepub:umu)hatu0002 (author)
  • Umeå universitetInstitutionen för fysiologisk botanik (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Related titles

  • In:New Phytologist: Wiley217:4, s. 1551-15650028-646X1469-8137

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