Heat induced impairments and recovery of photosynthetic machinery

Vladimir D. Kreslavski, Irina R. Fomina, Dmitry A. Los, Suleyman Allakhverdiev

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Photosynthesis is one of the most heat sensitive cellular processes. Oxygen evolvingcomplex together with the associated cofactors in photosystem II (PSII), the ATPgenerating system and carbon fixation by Rubisco are the main targets of elevatedtemperatures. The impairments of photosynthetic machinery (PM) lead to the oxidativeburst and to generation of excess of 1O2 in PSII, O2.- and H2O2, mainly in PSI. One of themain targets of generated reactive oxygen species is the system of protein synthesis,which plays the important role in the repair of PM after damage. It is suggested that thecrucial factors for the recovery of PM from heat-induced damage are the balance between(pro)oxidant and antioxidant levels, rate of photosynthetic protein synthesis, especiallyD1 and D2 proteins, as well as accumulation of antioxidants and other protectivecompounds. Thermostability of thylakoid membranes as well as extrinsic proteins andRubisco play a key role in the heat resistance of PM. Recent results on photosyntheticresponse under heat stress evidence for the key role of protein kinases, particular thehistidine kinase Hik34, transcription factors and several low-molecular compounds, suchas glycinebetaine and proline, in a response of the PM to heat stress. However, littleinformation is available about the components, which are involved in heat stresssignaling (perception and transduction), involving chloroplast heat sensors and signalingproteins, second messengers and gene signaling networks. In this chapter, we summarizerecent results in the study of the molecular mechanisms of impairments, heat signalingand acclimation of PM under heat stress.

Original languageEnglish
Title of host publicationHeat Stress
Subtitle of host publicationCauses, Treatment and Prevention
PublisherNova Science Publishers, Inc.
Pages89-112
Number of pages24
ISBN (Print)9781621001874
Publication statusPublished - Jan 1 2012
Externally publishedYes

Fingerprint

machinery
protein
antioxidant
damage
carbon fixation
chloroplast
acclimation
oxidant
repair
photosynthesis
membrane
sensor
oxygen
gene

ASJC Scopus subject areas

  • Environmental Science(all)

Cite this

Kreslavski, V. D., Fomina, I. R., Los, D. A., & Allakhverdiev, S. (2012). Heat induced impairments and recovery of photosynthetic machinery. In Heat Stress: Causes, Treatment and Prevention (pp. 89-112). Nova Science Publishers, Inc..

Heat induced impairments and recovery of photosynthetic machinery. / Kreslavski, Vladimir D.; Fomina, Irina R.; Los, Dmitry A.; Allakhverdiev, Suleyman.

Heat Stress: Causes, Treatment and Prevention. Nova Science Publishers, Inc., 2012. p. 89-112.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kreslavski, VD, Fomina, IR, Los, DA & Allakhverdiev, S 2012, Heat induced impairments and recovery of photosynthetic machinery. in Heat Stress: Causes, Treatment and Prevention. Nova Science Publishers, Inc., pp. 89-112.
Kreslavski VD, Fomina IR, Los DA, Allakhverdiev S. Heat induced impairments and recovery of photosynthetic machinery. In Heat Stress: Causes, Treatment and Prevention. Nova Science Publishers, Inc. 2012. p. 89-112
Kreslavski, Vladimir D. ; Fomina, Irina R. ; Los, Dmitry A. ; Allakhverdiev, Suleyman. / Heat induced impairments and recovery of photosynthetic machinery. Heat Stress: Causes, Treatment and Prevention. Nova Science Publishers, Inc., 2012. pp. 89-112
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