Changes in photosynthetic parameters and antioxidant activities following heat-shock treatment in tomato plants

Functional Plant Biology : FPB
Daymi CamejoFrancisca Sevilla

Abstract

Seedlings of two tomato genotypes, Lycopersicon esculentum Mill. var. Amalia and the wild thermotolerant type Nagcarlang, were grown under a photoperiod of 16 h light at 25°C and 8 h dark at 20°C. At the fourth true leaf stage, a group of plants were exposed to a heat-shock temperature of 45°C for 3 h, and measurements of chlorophyll fluorescence, gas-exchange characteristics, dark respiration and oxidative and antioxidative parameters were made after releasing the stress. The heat shock induced severe alterations in the photosynthesis of Amalia that seem to mitigate the damaging impact of high temperatures by lowering the leaf temperature and maintaining stomatal conductance and more efficient maintenance of antioxidant capacity, including ascorbate and glutathione levels. These effects were not evident in Nagcarlang. In Amalia plants, a larger increase in dark respiration also occurred in response to heat shock and the rates of the oxidative processes were higher than in Nagcarlang. This suggests that heat injury in Amalia may involve chlorophyll photooxidation mediated by activated oxygen species (AOS) and more severe alterations in the photosynthetic apparatus. All these changes could be related to the more dramatic effect ...Continue Reading

References

Jan 1, 1978·Methods in Enzymology·J A Buege, S D Aust
Nov 1, 1986·Proceedings of the National Academy of Sciences of the United States of America·R W MorganB N Ames
Nov 1, 1971·Analytical Biochemistry·C Beauchamp, I Fridovich
Jan 1, 1984·Methods in Enzymology·H Aebi
Aug 6, 2000·Zeitschrift Für Naturforschung. C, a Journal of Biosciences·L Schäfer, J Feierabend
Sep 18, 2002·Trends in Plant Science·Ron Mittler
Feb 25, 2003·Journal of Experimental Botany·Luis A del RíoBarbara A Zilinskas
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Kozi Asada
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Graham Noctor, Christine H. Foyer
Apr 19, 2005·Journal of Plant Physiology·Daymi CamejoJuan José Alarcón
Dec 1, 1986·Plant Physiology·J Nieto-Sotelo, T H Ho
Jan 1, 1987·Plant Physiology·J Kobza, G E Edwards
Jun 1, 1989·Plant Physiology·D C McCainJ L Markley

❮ Previous
Next ❯

Citations

Oct 1, 2006·Functional Plant Biology : FPB·Violeta VelikovaAglika Edreva
Jul 31, 2020·BMC Genomics·Saeedreza VessalKadambot H M Siddique
May 7, 2013·International Journal of Molecular Sciences·Mirza HasanuzzamanMasayuki Fujita
Oct 24, 2014·Frontiers in Plant Science·Sonia OsorioAlisdair R Fernie
Mar 30, 2016·Photosynthesis Research·Marian BresticSuleyman I Allakhverdiev
Jul 15, 2017·Frontiers in Plant Science·Shah FahadJianliang Huang
Mar 25, 2020·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Kamil OzturkAsım Kadioglu
Dec 1, 2007·Functional Plant Biology : FPB·Po-Yu ChenHao-Jen Huang
Oct 19, 2019·Plant Science : an International Journal of Experimental Plant Biology·Akanksha PareekNiranjan Chakraborty
Apr 27, 2016·Journal of Photochemistry and Photobiology. B, Biology·Chathurika WijewardanaK Raja Reddy

❮ Previous
Next ❯

Methods Mentioned

BETA
electrophoresis

Related Concepts

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.

Related Papers

Revista Portuguesa De Cardiologia : Orgão Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology
Pedro Marques da Silva
Yeni tıp tarihi araştırmaları = The new history of medicine studies
Şeref EtkerLászló András Magyar
Journal of the International Association of Physicians in AIDS Care
M Mascolini
© 2021 Meta ULC. All rights reserved