Catch - Attack

Bonjour a tous vous éte ici sur le forum de l'alliance Catch-Attack ici on parle de tout et de n'importe quoi et surtout de catch !! LôL bon bah venez nombreu dans notre alliance!! merci beaucoup . l'enssemble de l'alliance Catch-Attack
 
AccueilAccueil  FAQFAQ  RechercherRechercher  MembresMembres  GroupesGroupes  S'enregistrerS'enregistrer  Connexion  

Partagez | 
 

 The oxidative stress imposed by the increased flow of electrons to fixation

Aller en bas 
AuteurMessage
fibre7orange



Messages : 612
Date d'inscription : 22/01/2013

MessageSujet: The oxidative stress imposed by the increased flow of electrons to fixation   Mar 30 Jan - 7:45

The oxidative stress imposed by the increased flow of electrons to fixation
Further enhanced by the impairment and reduced activity of Rubisco at elevated temperatures. Furthermore, at elevated temperatures the affinity of Rubisco for oxygen is increased relative to its affinity for CO2 resulting increased photorespiration and overwhelming production of deleterious ROS that impair the D1 repair activity. Short-term exposure to elevated temperatures results in reversible effects on the photosynthetic activity. However, prolonged FDA-approved Compound Library exposure to temperatures above the physiological range causes a strong imbalance in the rates of PSIIRC impairment and repair, resulting in the collapse of the photosynthetic machinery and death of the photoautotrophic organism. Therefore, photosynthetic organisms have had to develop strategies to sustain their growth in extremely hot, intermediate, and extremely cold habitats. Despite this overall plasticity, the individual strains maintain activity over a narrow range of temperatures, typically 65–10uC around their physiological FG-4592 HIF inhibitor optimum. Hence, prolonged global warming is expected to strongly diminish the PSII activity in mesophilic organisms, resulting in reduced biomass production, unstable ecosystems worldwide, as was already observed in oceanic coral populations, and in disruption of renewable energy and food resources.
Revenir en haut Aller en bas
Voir le profil de l'utilisateur
 
The oxidative stress imposed by the increased flow of electrons to fixation
Revenir en haut 
Page 1 sur 1
 Sujets similaires
-
» que choisir à votre avis une PKD Brooza3 ou une Ozone Flow
» Pour demain ? Stress ou no stress ?
» LE STRESS DES COMPETITION
» vend fixation de snow flow!
» Complément anti-stress

Permission de ce forum:Vous ne pouvez pas répondre aux sujets dans ce forum
Catch - Attack :: Ring-
Sauter vers: