Comparative studies of H(2)O(2) detoxifying enzymes in green and greening barley seedlings under cadmium stress

Plant Science : an International Journal of Experimental Plant Biology
A HegedüsG Horváth

Abstract

Cadmium(Cd) stress induced alterations in the activities of several representatives of the enzymatic antioxidant defense system such as guiacol peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) were comparatively studied in green and greening barley seedlings that represent two different stages of plant development. Although roots were the main site of Cd accumulation, 1.5-3% of Cd was translocated into leaves and it induced oxidative damage which was indicated by the reduced chlorophyll and increased malondialdehyde content of the leaves. In roots of both types of seedlings exposed to various Cd concentrations, the APX activity was enhanced without any increase in the activity of POD. In leaves, however, elevated activities of both POD and APX could be observed. In roots of green seedlings at high concentration of Cd, the APX activity was reduced on the fourth day of culture but no inhibition was found in the POD activity. Leaf CAT which mainly represented the peroxisomal enzyme activity did not display any changes under Cd stress. Our results show that at both developmental stages barley seedlings exhibit a well-defined activity of the enzymatic antioxidant system, which operates differentially in roots and shoo...Continue Reading

Citations

Oct 17, 2009·Archives of Environmental Contamination and Toxicology·Alicja PiotrowskaElzbieta Zambrzycka
Apr 17, 2010·Archives of Environmental Contamination and Toxicology·Cui-Hong ChenYing-ying Wang
Jul 10, 2012·Environmental Monitoring and Assessment·Yan Li LuHong Yang
Oct 12, 2010·Environmental Science and Pollution Research International·Xiujie XieYanyu Bao
May 10, 2013·Environmental Science and Pollution Research International·Shuduan TanQuanfa Zhang
Aug 19, 2008·Biological Trace Element Research·Xiao WuHong Fashui
Jun 17, 2010·Biological Trace Element Research·Alieu Mohamed BahFeibo Wu
Jun 1, 2005·Ecotoxicology and Environmental Safety·Meie Wang, Qixing Zhou
May 3, 2003·Biochimica Et Biophysica Acta·Jacqueline KeyhaniSekineh Zarchipour
Jun 7, 2008·Journal of Biomolecular Structure & Dynamics·H-Y HanS Li
Aug 20, 2008·International Journal of Phytoremediation·Sara Adrián López de AndradeMônica Ferreira de Abreu
May 24, 2011·International Journal of Phytoremediation·Rajni Bala, Ashwani K Thukral
Mar 16, 2013·International Journal of Phytoremediation·Bala Murugan ShanmugarajSathishkumar Ramalingam
Jan 21, 2014·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Indra Singh, Kavita Shah
Nov 30, 2013·Environmental Science and Pollution Research International·Jinjin WanShengxiang Zhang
Aug 29, 2014·Ecotoxicology and Environmental Safety·Muhammad Bilal ShakoorGhulam Hasan Abbasi
May 27, 2014·Environmental Science and Pollution Research International·M Yokesh BabuA K Kumaraguru
Mar 19, 2009·Bulletin of Environmental Contamination and Toxicology·Mohammad ShafiGuoping Zhang
Oct 3, 2012·Ecotoxicology and Environmental Safety·Xiaoning LiXia Wei
Oct 6, 2012·Biochemical and Biophysical Research Communications·Jing-bin LiHui Jin
Jul 13, 2012·Ecotoxicology and Environmental Safety·B DuarteI Caçador
Jun 1, 2011·Journal of Ginseng Research·Yong-Seong KimHwa-Young Son
Sep 10, 2010·Ecotoxicology and Environmental Safety·Sudhir SinghSusan Eapen
Jul 20, 2010·Chemosphere·Yun-Hee KimSang-Soo Kwak
Jul 8, 2008·Journal of Hazardous Materials·Mohamed Alpha JallohGuoping Zhang
Feb 5, 2008·Colloids and Surfaces. B, Biointerfaces·Biao LiBochu Wang
Aug 4, 2015·Environmental Science and Pollution Research International·Alicja Piotrowska-NiczyporukElżbieta Zambrzycka
Oct 5, 2007·Journal of Plant Physiology·Alexander KrantevLosanka Popova

❮ 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.