Parallel changes in H2O2 and catalase during thermotolerance induced by salicylic acid or heat acclimation in mustard seedlings

Plant Physiology
J F DatIan M Scott

Abstract

Spraying mustard (Sinapis alba L.) seedlings with salicylic acid (SA) solutions between 10 and 500 &mgr;m significantly improved their tolerance to a subsequent heat shock at 55 degreesC for 1.5 h. The effects of SA were concentration dependent, with higher concentrations failing to induce thermotolerance. The time course of thermotolerance induced by 100 &mgr;m SA was similar to that obtained with seedlings acclimated at 45 degreesC for 1 h. We examined the hypothesis that induced thermotolerance involved H2O2. Heat shock at 55 degreesC caused a significant increase in endogenous H2O2 and reduced catalase activity. A peak in H2O2 content was observed within 5 min of either SA treatment or transfer to the 45 degreesC acclimation temperature. Between 2 and 3 h after SA treatment or heat acclimation, both H2O2 and catalase activity significantly decreased below control levels. The lowered H2O2 content and catalase activity occurred in the period of maximum thermoprotection. It is suggested that thermoprotection obtained either by spraying SA or by heat acclimation may be achieved by a common signal transduction pathway involving an early increase in H2O2.

References

Aug 1, 1991·The Histochemical Journal·M ShimadaC Ono
May 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·C T Privalle, I Fridovich
Dec 1, 1986·Archives of Biochemistry and Biophysics·J Feierabend, S Engel
Dec 1, 1983·Proceedings of the National Academy of Sciences of the United States of America·P C LeeB N Ames
Nov 21, 1995·Proceedings of the National Academy of Sciences of the United States of America·J Durner, D F Klessig
Aug 1, 1995·The Plant Journal : for Cell and Molecular Biology·Y M BiJ Draper
May 14, 1996·Proceedings of the National Academy of Sciences of the United States of America·Y K SharmaK R Davis
May 9, 1995·Proceedings of the National Academy of Sciences of the United States of America·R TenhakenC Lamb
May 9, 1995·Proceedings of the National Academy of Sciences of the United States of America·J RyalsK Weymann
Aug 1, 1995·Proceedings of the National Academy of Sciences of the United States of America·U ConrathD F Klessig
Aug 1, 1995·Plant Physiology·J. LeonI. Raskin
Jun 1, 1994·Plant Physiology·M. C. Mehdy
Dec 1, 1986·Plant Physiology·J Nieto-Sotelo, T H Ho
Jan 1, 1995·Annual Review of Phytopathology·C J Baker, E W Orlandi
Aug 1, 1993·Physiologia Plantarum·Albert C Purvis, Robert L Shewfelt

❮ Previous
Next ❯

Citations

Jul 1, 2005·Science in China. Series C, Life Sciences·Zhifang LinJingliu Zhang
Apr 28, 2005·Plant Physiology and Biochemistry : PPB·Mohammad Babar AliKee-Yoeup Paek
Jul 26, 2000·Plant Science : an International Journal of Experimental Plant Biology·U Cho, J Park
Sep 15, 2007·Pakistan Journal of Biological Sciences : PJBS·K MahdavianM Ghorbanli
Apr 30, 2014·BMC Plant Biology·Yuepeng SongDeqiang Zhang
Aug 13, 2014·Plant Science : an International Journal of Experimental Plant Biology·Fengxia TianWei Wang
Oct 1, 2006·Plant Science : an International Journal of Experimental Plant Biology·Lili SongLixin Zhang
Jun 26, 2014·Journal of Applied Genetics·Bayan Al-Momany, Saeid Abu-Romman
Dec 7, 2014·Plant Science : an International Journal of Experimental Plant Biology·Xiao WangBernd Wollenweber
Apr 21, 2007·Journal of Zhejiang University. Science. B·Guo-zhang KangGu-chou Sun
Jul 3, 2013·Bulletin of Environmental Contamination and Toxicology·K K TiwariU N Rai
Aug 20, 2015·International Journal of Molecular Sciences·Mayank Anand GururaniHanhong Bae
May 15, 2012·Journal of Plant Physiology·Katalin JandaTibor Janda
Oct 12, 2010·Journal of Plant Physiology·Gabriella SzalaiTibor Janda
Oct 10, 2007·Chemosphere·Rajeev Gopal, Aqeel Hasan Rizvi
Oct 5, 2007·Journal of Plant Physiology·Alexander KrantevLosanka Popova
Apr 17, 2004·The Plant Journal : for Cell and Molecular Biology·Shannon M ClarkeIan M Scott

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.