Abstract

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, i.e., Westiellopsis prolifica isolated from ash pond of NALCO (National Aluminum Company Limited), Angul, Odisha. In the experimental setup, treatment with different concentrations of AlCl₃ (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 H₂O₂ accumulation in cyanobacterium, W. prolifica.

1. Statement of novelty

2. Aluminum metal toxicity renders growth of Westiellopsis prolifica via affecting photosynthesis associated pigments.

3. Westiellopsis prolifica deploys antioxidant defense enzymes to combat against aluminum mediated oxidative upset.

4. Intracellular antioxidant enzymes provoke cellular survival of Westiellopsis prolifica under excessive uptake of aluminum in contaminated habitats.

摘要

铝金属污染被认为是导致南亚亚热带国家（例如印度）减产的主要限制因素。在全国范围内，奥里萨邦（Odisha）贡献了约40％以上的总矿石供应量。此外，工业采矿和冶炼助剂是领土附近铝金属毒性通过食物链影响土壤肥力，生态系统和人类健康的主要问题。铝金属的积累通过对光合作用和固氮菌群的拮抗作用来限制土壤肥力。铝污染企业对其在污染现场进行生物修复的关键研究日益关注。在此概念下，假设当前的研究是解密速率限制因素，即，从奥里萨邦安古尔的纳尔科公司（国家铝业有限公司）的灰池分离出的多产Westiellopsis prolifica。在实验设置中，用不同浓度的AlCl _3处理（0–0.1 mM）由于光合色素的不利调节而导致菌株生长下降。但是，过氧化氢酶（CAT），抗坏血酸过氧化物酶（APX），超氧化物歧化酶（SOD），愈创木酚过氧化物酶（GPX）和谷胱甘肽还原酶（GR）的实施对于在氧化不平衡下维持菌株活力至关重要。在这种氧化不平衡下，观察到抗氧化酶和MDA含量增加的观察结果可以维持菌株的活力。预期研究的结果很明显地证明了铝介导的氧化应激诱导和通过细胞内抗氧化酶的细胞排毒以及清除蓝藻W. Olifica中的H ₂ O ₂积累之间的巨大联系。

1. 新奇声明

2. 铝金属毒性通过影响光合作用相关色素而使多产威氏铁锈菌生长。

3. 产多产Westiellopsis的抗氧化防御酶可以对抗铝介导的氧化反应。

4. 在受污染的生境中过量摄入铝后，细胞内的抗氧化酶可促进多虫威氏菌的细胞存活。