Algal Biotechnology and Molecular Systematic Lab., Post Graduate Department of Botany, Berhampur University, Berhampur, India.
Department of Botany, Panchayat College Bargarh, Bargarh, India.
Int J Phytoremediation. 2021;23(3):238-251. doi: 10.1080/15226514.2020.1807906. Epub 2020 Aug 31.
Aluminum metal pollution is considered as a primary limiting factor that reduced crop yield in South Asian subtropical country like India. In national context, Odisha contributes around more than 40% of total ore availability. Moreover, industrial mining and smelting aid are major concern for aluminum metal toxicity in territorial vicinity affecting the soil fertility, ecosystem and human health through food chain. The aluminum metal accumulation limits the soil fertility by antagonistic regulation of photosynthetic and nitrogen fixing microbiota. The increasing concern regarding aluminum pollution enterprise critical investigations for their bioremediation in contamination sites. In this notion, the current study was hypothesized to decrypt the rate limiting factors, their explicit mode of action and intracellular detoxification in a cyanobacterium, , isolated from ash pond of NALCO (National Aluminum Company Limited), Angul, Odisha. In the experimental setup, treatment with different concentrations of AlCl (0-0.1 mM) was marked a decline in the growth of the strain due to the adverse regulation of photosynthetic pigments. However, the enforcement of catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD), guaiacol peroxidase (GPX) and glutathione reductase (GR) was critical for sustaining strain viability under oxidative imbalance. The observation of an increase in the antioxidant enzyme and MDA content was evident to sustain strain viability under such oxidative imbalance. The outcome of the anticipated study was apparent to demonstrate a colossal interlink between Al mediated induction of oxidative stress and their cellular detoxification via intracellular antioxidant enzymes and removal of HO accumulation in cyanobacterium, . Statement of novelty Aluminum metal toxicity renders growth of via affecting photosynthesis associated pigments. deploys antioxidant defense enzymes to combat against aluminum mediated oxidative upset. Intracellular antioxidant enzymes provoke cellular survival of under excessive uptake of aluminum in contaminated habitats.
铝金属污染被认为是降低印度等南亚亚热带国家作物产量的主要限制因素。在国家范围内，奥里萨邦提供的矿石量占总矿石供应量的 40%以上。此外，工业采矿和冶炼援助是铝金属毒性在领土附近影响土壤肥力、生态系统和通过食物链影响人类健康的主要关注点。铝金属的积累通过对光合和固氮微生物的拮抗调节限制了土壤肥力。人们越来越关注铝污染企业，对其在污染地点的生物修复进行了关键调查。在这种情况下，目前的研究假设是解密限速因素、它们在一种蓝藻中的明确作用机制和细胞内解毒作用，该蓝藻从奥里萨邦 Angul 的 NALCO（国家铝业有限公司）的灰坑中分离出来。在实验设置中，用不同浓度的 AlCl（0-0.1mM）处理会由于光合色素的不利调节而导致菌株生长下降。然而，CAT（过氧化氢酶）、APX（抗坏血酸过氧化物酶）、SOD（超氧化物歧化酶）、GPX（愈创木酚过氧化物酶）和 GR（谷胱甘肽还原酶）的强制实施对于维持氧化失衡下的菌株活力至关重要。抗氧化酶和 MDA 含量增加的观察结果表明，在这种氧化失衡下，菌株活力得以维持。预期研究的结果显然表明，铝介导的氧化应激诱导与其细胞内抗氧化酶的细胞解毒之间存在巨大的相互联系，并消除了蓝藻中 HO 积累。新颖性声明 铝金属毒性通过影响光合作用相关色素来抑制 的生长。 利用抗氧化防御酶来对抗铝介导的氧化不安。 细胞内抗氧化酶在受污染栖息地中过量摄取铝时促使 的细胞存活。
