Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley ( Hordeum vulgare L.)

Plant Biology ◽  
2021 ◽  
Author(s):  
R. Naz ◽  
F. Gul ◽  
S. Zahoor ◽  
A. Nosheen ◽  
H. Yasmin ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Heat Tolerance ◽  
Hydrogen Sulphide ◽  
Redox Status ◽  
Interactive Effects ◽  
Hordeum Vulgare L ◽  
Antioxidant Defence ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

scholarly journals The activity of the first line enzymes of the antioxidant defence in the liver of pubertal rats during stress

2012 ◽  
Vol 58 (5) ◽  
pp. 573-578 ◽  
Author(s):  
Y.V. Volkova ◽  
L.L. Sukhova ◽  
V.V. Davydov ◽  
A.V. Goloborodko
Keyword(s):  
Superoxide Dismutase ◽  
Glutathione Peroxidase ◽  
Immobilization Stress ◽  
First Line ◽  
Short Term ◽  
Antioxidant Defence ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

The purpose of the work was to study the activity of the first line antioxidant defence enzymes in postmitochondrial fraction of liver of pubertal rats during immobilization stress. During short-term immobilization the activity of catalase and glutathione peroxidase (GPx) decreased. Long-term immobilization was accompanied by activation of GPx and superoxide dismutase in the liver postmitochondrial fraction of late pubertal and adult animals, but not early pubertal rats.

The activity of antioxidant defence enzymes in the mussel Mytilus galloprovincialis from the Adriatic Sea

2005 ◽  
Vol 141 (4) ◽  
pp. 366-374 ◽  
Author(s):  
Slavica S. Borković ◽  
Jelena S. Šaponjić ◽  
Sladjan Z. Pavlović ◽  
Duško P. Blagojević ◽  
Slaviša M. Milošević ◽  
...  
Keyword(s):  
Mytilus Galloprovincialis ◽  
Adriatic Sea ◽  
Antioxidant Defence ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

Polyprenols as Promising Neuropharmacological Agents

Biomeditsina ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 125-129
Author(s):  
E. B. Shustov ◽  
V. A. Kashuro ◽  
E. G. Batotsyrenova ◽  
E. A. Zolotoverhaya ◽  
A. E. Kim ◽  
...  
Keyword(s):  
Chronic Exposure ◽  
Neuroprotective Effect ◽  
Trophic Factors ◽  
Laboratory Animals ◽  
Glutathione S Transferase ◽  
Antioxidant Defence ◽  
S 100 ◽  
Peroxidation Processes ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

The article presents information about the potential effectiveness of polyprenols as a means of neuropharmacology. To confirm the neuroprotective effect of polyprenols, their effectiveness was studied in the case of chronic exposure to carbendazim. In such conditions, chronic damage to nerve cells is developed through violating the homeostasis of neurospecific proteins (S-100, MBP) and trophic factors, as well as a sharp activation of lipid peroxidation processes. The administration of polyphenols (2 mg/kg once a day for 2 weeks) to laboratory animals under modelled conditions reduced the manifestations of neurointoxication and statistically significantly contributed to the reduction of oxidative stress and activation of antioxidant defence enzymes (glutathione-S-transferase).

Antioxidant enzymes in the liver of Chelidonichthys obscurus from the Montenegrin coastline

2013 ◽  
Vol 8 (8) ◽  
pp. 747-755
Author(s):  
Sladjan Pavlović ◽  
Slavica Borković-Mitić ◽  
Tijana Radovanović ◽  
Branka Perendija ◽  
Svetlana Despotović ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Antioxidant Enzymes ◽  
Phase Ii ◽  
Adriatic Sea ◽  
Glutathione S Transferase ◽  
Antioxidant Defence ◽  
Phase Ii Enzyme ◽  
Copper Zinc ◽  
Defence Enzymes ◽  
Antioxidant Defence Enzymes

AbstractThe activities of antioxidant defence enzymes — total, manganese and copper zinc containing superoxide dismutase (Tot SOD, Mn SOD, CuZn SOD), catalase (CAT), glutathione peroxidase (GSH-Px), glutathione reductase (GR) and biotransformation phase II enzyme glutathione-S-transferase (GST) — in the liver of longfin gurnard (Chelidonichthys obscurus) from the Montenegrin coastline (Adriatic sea) were investigated. The specimens were collected in winter (February) and late spring (May) at two localities: Platamuni (PL, potentially unpolluted) and the Estuary of the River Bojana (EB, potentially polluted). The obtained results show that the activities of Mn SOD, CAT, GSH-Px and GST in winter were significantly lower at EB than at PL. In spring, the activities of CAT and GST were decreased, while GR activity was increased at EB in comparison to PL. The activities of Mn SOD and GST at PL were decreased and GSH-Px, GR and GST activities at EB were increased in spring compared to winter. Our work represents the first study of liver antioxidant enzymes of longfin gurnard from the Montenegrin coastline and reveals that locality, as a variable, has a greater influence on antioxidant enzymes and biotransformation phase II enzyme GST activities compared to season.

scholarly journals Impact of Ascorbate—Glutathione Cycle Components on the Effectiveness of Embryogenesis Induction in Isolated Microspore Cultures of Barley and Triticale

Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1254
Author(s):  
Iwona Żur ◽  
Przemysław Kopeć ◽  
Ewa Surówka ◽  
Ewa Dubas ◽  
Monika Krzewska ◽  
...  
Keyword(s):  
Microspore Embryogenesis ◽  
Total Activity ◽  
Redox Status ◽  
Hordeum Vulgare L ◽  
Antioxidant Defence ◽  
Defence Responses ◽  
Activity Of Enzymes ◽  
Glutathione Cycle ◽  
Microspore Reprogramming

Enhanced antioxidant defence plays an essential role in plant survival under stress conditions. However, excessive antioxidant activity sometimes suppresses the signal necessary for the initiation of the desired biological reactions. One such example is microspore embryogenesis (ME)—a process of embryo-like structure formation triggered by stress in immature male gametophytes. The study focused on the role of reactive oxygen species and antioxidant defence in triticale (x Triticosecale Wittm.) and barley (Hordeum vulgare L.) microspore reprogramming. ME was induced through various stress treatments of tillers and its effectiveness was analysed in terms of ascorbate and glutathione contents, total activity of low molecular weight antioxidants and activities of glutathione–ascorbate cycle enzymes. The most effective treatment for both species was a combination of low temperature and exogenous application of 0.3 M mannitol, with or without 0.3 mM reduced glutathione. The applied treatments induced genotype-specific defence responses. In triticale, both ascorbate and glutathione were associated with ME induction, though the role of glutathione did not seem to be related to its function as a reducing agent. In barley, effective ME was accompanied by an accumulation of ascorbate and high activity of enzymes regulating its redox status, without direct relation to glutathione content.

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