scholarly journals Effect of Anthelmintics on Antioxidant Enzymes in Arabidopsis Thaliana

2017 ◽  
Author(s):  
Radka Podlipná ◽  
Eliška Syslová ◽  
Markéta Hanulíková ◽  
Lucie Raisová Stuchlíková ◽  
Barbora Szotáková ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes

Activities of antioxidant enzymes of Arabidopsis thaliana plants during cold hardening to hypothermia

2016 ◽  
Vol 63 (6) ◽  
pp. 749-753 ◽  
Author(s):  
M. S. Sin’kevich ◽  
A. A. Selivanov ◽  
O. V. Antipina ◽  
E. V. Kropocheva ◽  
G. P. Alieva ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes ◽  
Cold Hardening

scholarly journals Influence of sodium chloride on the dehydroascorbate reductase activity in Arabidopsis thaliana catalase 2 knokout mutant

2018 ◽  
Vol 15 (2) ◽  
pp. 138-144
Author(s):  
I. M. Buzduga ◽  
R. A. Volkov ◽  
I. I. Panchuk
Keyword(s):  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes ◽  
Salt Stress ◽  
Sodium Chloride ◽  
Reductase Activity ◽  
Dehydroascorbate Reductase ◽  
Knock Out ◽  
Stress Treatment ◽  
Response To Stress ◽  
Glutathione Cycle

Aim. To better understand the mechanisms of abiotic stress resistance in plants, it is important to clarify the role of individual antioxidant enzymes from the same multiproteinic family in the response to stress. It is known that the loss of some isoforms of antioxidant enzymes can be compensated by activation of other enzymes. However, the functional interaction of the ascorbate-glutathione cycle enzymes with catalase under salt stress still remains unexplored. Respectively, we determined the activity of DHAR in knock-out mutants of Arabidopsis thaliana under salt stress. Methods. The DHAR activity was determined in the knock-out line cat2 and in wild-type (WT) Arabidopsis plants after various regimes of treatment with sodium chloride. Results. After treatment with 200 mM sodium chloride in the dark, activation of DHAR was found after 8 hours in WT plants and after 4 hours in the knock-out line cat2. However stress treatment under illumination resulted in significant increase in DHAR activity after 8 hours in both studied lines. In this case, DHAR activity in cat2 was lower than in WT, whereas in non-treated plants or upon stress treatment in the dark no difference between the tested lines was detected. Conclusions. The obtained data indicate that under salt stress conditions, changes in the DHAR activity are included into functional rearrangements of the antioxidant system in cat2 line, which compensate the loss of activity of CAT2 isoenzyme.Keywords: dehydroascorbate reductase, antioxidants, reactive oxygen species (ROS), salt stress, Arabidopsis thaliana

scholarly journals Crystal structure of Arabidopsis thaliana peroxiredoxin A C119S mutant

2018 ◽  
Vol 74 (10) ◽  
pp. 625-631 ◽  
Author(s):  
Ye Yang ◽  
Wenguang Cai ◽  
Junchao Wang ◽  
Weimin Pan ◽  
Lin Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes ◽  
Conformational Changes ◽  
Large Family ◽  
Living Organisms ◽  
Reduced State

Peroxiredoxins (Prxs), a large family of antioxidant enzymes, are abundant in all living organisms. Peroxiredoxin A (PrxA) from Arabidopsis thaliana belongs to the typical 2-Cys Prx family and is localized in the chloroplast. This article reports the crystal structure of a PrxA C119S mutant refined to 2.6 Å resolution. The protein exists as a decamer both in the crystal structure and in solution. The structure is in the reduced state suitable for the approach of peroxide, though conformational changes are needed for the resolving process.

Effect of BSO-supplemented heavy metals on antioxidant enzymes in Arabidopsis thaliana

2010 ◽  
Vol 73 (6) ◽  
pp. 1362-1369 ◽  
Author(s):  
Maria Drążkiewicz ◽  
Ewa Skórzyńska-Polit ◽  
Zbigniew Krupa
Keyword(s):  
Heavy Metals ◽  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes

Activity of Antioxidant Enzymes in Response to Cadmium in Arabidopsis thaliana

2008 ◽  
Vol 9 (1) ◽  
pp. 44-50 ◽  
Author(s):  
A. Saffar ◽  
M.B. Bagherieh ◽  
M. Mianabadi
Keyword(s):  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes

Differential Responses in Activity of Antioxidant Enzymes to Different Environmental Stresses in Arabidopsis thaliana

1999 ◽  
Vol 112 (3) ◽  
pp. 279-290 ◽  
Author(s):  
Akihiro Kubo ◽  
Mitsuko Aono ◽  
Nobuyoshi Nakajima ◽  
Hikaru Saji ◽  
Kiyoshi Tanaka ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Antioxidant Enzymes ◽  
Environmental Stresses ◽  
Differential Responses

Stable genetic transformation of Arabidopsis thaliana by Agrobacterium inoculation in planta

1994 ◽  
Vol 5 (4) ◽  
pp. 551-558 ◽  
Author(s):  
Seok So Chang ◽  
Soon Ki Park ◽  
Byung Chul Kim ◽  
Bong Joong Kang ◽  
Dal Ung Kim ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Genetic Transformation ◽  
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