Journals / Türk Biyokimya Dergisi / 2016 / Cilt: 41 - Sayı: 6

Ni moleküler modülasyonunun ve etkisinin Ni ile şartlandırılmışPlectonema boryanum üzerindeki akut Ni toksisitesi

Molecular modulations and influence of acclimation of Ni on acute Ni toxicity in Plectonema boryanum

Pages
393–402
Publication Date
2022-11-05
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Ni acclimated cells also showed reduction in peroxide and an increase in proline and total phenol after exposure to 4 ?M of Ni.Conclusion: Our results for the first time demonstrated that accumulation of phenol and proline during the accli-mation process could provide tolerance to the cyanobac-terium from deleterious effects of the metal stress if it is further exposed to the same metal.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: In this study, metal induced accumulation of antioxidants, proline and phenol were proposed during acclimation, to provide defense, protection and resistance against oxidative stress on Ni acclimated cyanobacterium.Methods: Plectonema boryanum was used as a test organism in the present study and the experiments were performed in two sets (1) cells differentially exposed to Ni (2) cells acclimated with Ni and then further exposed to Ni in the plant tissue culture laboratory.Results: Dose-dependent formation of peroxide in Nitreated cells increased the activity of superoxide dismutase (SOD) and also enhanced accumulations of non-enzymatic antioxidants such as proline and total phenols at low concentrations of Ni.
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Key Findings & Data:Down regulation of most of the polypeptides at 20 ?M of Ni demonstrated the severe toxicity of the metal while a slight up-regulation of peptide depicted its role in metal tolerance.
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Conclusion & Impact:Ni acclimated cells also showed reduction in peroxide and an increase in proline and total phenol after exposure to 4 ?M of Ni.Conclusion: Our results for the first time demonstrated that accumulation of phenol and proline during the accli-mation process could provide tolerance to the cyanobac-terium from deleterious effects of the metal stress if it is further exposed to the same metal.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: In this study, metal induced accumulation of antioxidants, proline and phenol were proposed during acclimation, to provide defense, protection and resistance against oxidative stress on Ni acclimated cyanobacterium.Methods: Plectonema boryanum was used as a test organism in the present study and the experiments were performed in two sets (1) cells differentially exposed to Ni (2) cells acclimated with Ni and then further exposed to Ni in the plant tissue culture laboratory.Results: Dose-dependent formation of peroxide in Nitreated cells increased the activity of superoxide dismutase (SOD) and also enhanced accumulations of non-enzymatic antioxidants such as proline and total phenols at low concentrations of Ni. Down regulation of most of the polypeptides at 20 ?M of Ni demonstrated the severe toxicity of the metal while a slight up-regulation of peptide depicted its role in metal tolerance. Ni acclimated cells also showed reduction in peroxide and an increase in proline and total phenol after exposure to 4 ?M of Ni.Conclusion: Our results for the first time demonstrated that accumulation of phenol and proline during the accli-mation process could provide tolerance to the cyanobac-terium from deleterious effects of the metal stress if it is further exposed to the same metal.

Özet

Amaç: Bu çalışmada, antioksidanlar, prolin ve fenol'ün metal bağlı birikimini Ni ile şartlandırılmış siyanobakterinin oksidatif strese karşı savunma, koruma ve direnç sağlamak gibi özellikler gösterdiği belirlenmiştir.Metot: Bu çalışmada Plectonema boryanum test organizması olarak kullanılmıştır ve deneyler iki set olarak; diferansiyel olarak hücrelerin nikele maruz bırakılması ve hücrelerin nikel ile şartlandırılması şeklinde gerçekleştirilmiştir, sonrasında daha fazla nikele maruz kalma işlemi bitki doku kültürü laboratuvarında gerçekleştirilmiştir.Bulgular: Doz bağımlı peroksit oluşumu nikel ile muamele edilmiş hücrelerde süperoksit dismutaz (SOD) aktivitesini artırmış, aynı zamanda non-enzimatik antioksidanlar proline ve total fenollerin birikimini de düşük konsantrasyondaki Ni miktarlarında artırmıştır. Peptidin metal toleransı ile regülsyonu artırıcı etkisi düşünüldüğünde, çoğu polipeptid üretimi 20 ?M Ni konsantrasyonunda ciddi toksisite göstermesiyle baskılanmıştır. 4 ?M Nikel'e maruz bırakılmış, Ni ile şartlandırılmış hücrelerde peroksit miktarında azalma, prolin ve total fenol miktarında artış görülmüştür.Sonuç: Sonuçlarımıza göre fenol ve prolinin birikiminin şartlandırma işlemiyle siyanobakterlerin aynı metale maruz kaldığında üzerlerindeki metal stresini azalttığı ilk defa gösterilmiştir.

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Cite This Article

SİDDİQUİ, H. M., KESARI, K. K., FAROOQUİ, A., MAHFOOZ, S., SHAMİM, A. (2022). Ni moleküler modülasyonunun ve etkisinin Ni ile şartlandırılmışPlectonema boryanum üzerindeki akut Ni toksisitesi. Türk Biyokimya Dergisi, Cilt: 41 - Sayı: 6, 393–402. https://ajindex.com/articles/621085

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