Observatorio de I+D+i UPM

Memorias de investigación
Other publications:
Breathe: brief inspiration about mosses respiration
Year:2014
Research Areas
  • Molecular, cellular and genetic biology
Information
Abstract
Mitochondria are organelle found in eukaryotic cells, supplying vital energy. They are involved in many processes such as photorespiration, photosynthesis, nitrogen metabolism, redox regulation and signalling. The importance of plant respiration and TCA cycle led us to succinate dehydrogenase (SDH) that is involved in TCA cycle, as well as in the aerobic respiratory chain. Mitochondrial complex II, a common name for SDH, contains four conserved elements: two peripheral membrane proteins represented by flavoprotein (SDH1) and iron-sulfur protein (SDH2) followed by two integral membrane proteins (SDH3 and SDH4). Our interest was focused on iron-sulfur subunit SDH2.3 in moss Physcomitrella patens, an early land plant lineage. In addition, SDH2.3 gene expression is known to occur during seed maturation and to be controlled by genes belonging to B3 family of transcription factors, involved in the regulation of seed development in Arabidopsis thaliana. For this reason, we want to gain insight into the function of PpSDH2 genes in non-seed plants, as during the course of evolution perhaps some mechanisms in ancestral plants have been conserved, while new functions have appeared as well, at later stages. The importance of such approach convinced us to present phenotypic characterization of PpSDH2.3 genes. To elucidate PpSDH2.3 complex II function we have generated mutants lacking PpSDH2.3 gene, as well as overexpressing transgenic line. Their expression upon stress conditions might be through evolutionary conserved pathways, with further creation of alternative mechanisms in seed plants.
International
Si
Entity
ICREA
Place
Barcelona
Pages
Reference/URL
Publication type
Comunicación en Congreso
Participants
  • Autor: Anna Tatkiewicz (UPM)
  • Autor: Jesus Vicente Carbajosa (UPM)
  • Autor: Joaquin Medina Alcazar (UPM)
  • Autor: Dennys Marcela Gomez Paez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Biotecnología - Biología Vegetal
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)