• cytosolic
  • The mRNA of heat shock protein (HSP) genes, exemplified by Hsp17.6, Hsp18.2, and the two cytosolic ascorbate peroxidase genes Apx1, Apx2, reached similar levels by moderate heat stress (37°C) or by treatment with H2O2, butylperoxide and diamide at room temperature. (deepdyve.com)
  • plant
  • When plants and cultured cells were treated with 2 mM proline and than with H2O2, the number of dead cells in suspension was 35%, the content of MDA was decreased, APO was activated, and SOD activity was decreased in both cell culture and plant leaves. (deepdyve.com)
  • signalling pathway
  • The heat-induced expression levels were significantly reduced in the presence of ascorbate or DPI indicating that H2O2 is an essential component in the heat stress signalling pathway. (deepdyve.com)
  • chloroplasts
  • Home / Plantae Blog / Research / What We're Reading This Week / Photosynthesis-dependent H2O2 transfer from chloroplasts to nuclei provides. (plantae.org)
  • show that upon illumination with high light, hydrogen peroxide produced in the stroma of chloroplasts located near the nucleus appears to be transferred to the nucleus. (plantae.org)
  • 2H2O
  • Peroxiredoxin uses thioredoxin (Trx) to recharge after reducing hydrogen peroxide (H2O2) in the following reactions: Prx(reduced) + H2O2 → Prx(oxidized) + 2H2O Prx(oxidized) + Trx(reduced) → Prx(reduced) + Trx(oxidized) The oxidized form of Prx is inactive, requiring the donation of electrons from reduced Trx to restore its catalytic activity. (wikipedia.org)
  • accumulation
  • They were able to block nuclear H 2 O 2 accumulation by expressing ascorbate peroxidase (a hydrogen peroxide detoxifier) in the chloroplast stroma, but not when APX was expressed in the cytosol, suggesting that the H 2 O 2 moves directly from the chloroplast to the nucleus, and could serve as a rapid and specific retrograde signal of high light. (plantae.org)
  • reactions
  • HMDB) In E. coli, H2O2 is used in the aerobic degradation of L-ascorbate, and produced as a byproduct in many reactions involving oxygen as an oxidizing agent. (ecmdb.ca)
  • oxygen
  • Leydig cells maintained in an atmosphere composed of 19% oxygen produced H2O2 at a faster rate than similar cells incubated at 3% oxygen. (biology-online.org)
  • concentration
  • The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. (uji.es)
  • levels
  • RNA blot analyses show that APX3 transcript levels increase slightly in response to cold, UV light, and treatments with hydrogen peroxide and paraquat. (deepdyve.com)
  • In addition, there is growing evidence that at low levels, H2O2 also functions as a signaling agent, particularly in higher organisms. (ecmdb.ca)