Growth, Metal Accumulation Potential and Antioxidant Enzyme Responses of Ricinus communis L. Genotypes Exposed to Cement Industry Effluent

INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT Pub Date : 2023-09-28 DOI:10.18811/ijpen.v9i03.10

K. Bauddh, Ankit Ankit, Amit Kumar, Mohammad Amir

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Abstract

The current study was carried out to delineate the effect of cement industry effluent on the two screened varieties of R. communis(Castor) viz. MSC-55 and Western-6. A number of analyses such as growth parameters, photosynthetic pigment, metal accumulationand antioxidant enzyme were performed on both the varieties. With respect to T0 (100% tap water), an increase of 86.84, 90.97 and80.15% was noticed in the fresh weight (FW) of roots of MSC-55 variety at 30, 60 and 90 DAS, respectively, when irrigated with T2 (50%effluent+50% tap water). The results obtained significantly differed between T0 and T2 and T0 and T4 (at p ≤ 0.05). MSC-55 variety wasobserved to contain an increased amount of total chlorophyll and carotenoids up to T2 concentration which declined at higher effluentconcentration i.e., T4 (100% effluent). Increased concentration of Cement Industry Effluent (CIE) enhanced the generation of someantioxidant compounds like Guaiacol peroxidase (GPX) and Ascorbate peroxidase (APX) in both the varieties up to certain treatmentconcentrations viz. MSC-55 and Western-6. As the effluent concentration increased in both the varieties, the amount of malondialdehyde(MDA) in the leaves and roots also rose. With increasing effluent concentrations, Catalase (CAT) and Superoxide dismutase (SOD)also increased. MSC-55 variety of R. communis was observed to have a strong antioxidant defence system against CIE and could berecommended for cultivation during metal-contaminated industrial effluent condition.

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暴露于水泥工业废水的蓖麻基因型的生长、金属累积潜力和抗氧化酶反应

本研究旨在确定水泥工业废水对两个经筛选的蓖麻品种（MSC-55 和 Western-6）的影响。对这两个品种进行了一系列分析，如生长参数、光合色素、金属积累和抗氧化酶。与 T0（100% 自来水）相比，用 T2（50% 污水+50% 自来水）灌溉 MSC-55 品种时，其根的鲜重（FW）在 30、60 和 90 DAS 期分别增加了 86.84、90.97 和 80.15%。结果表明，T0 和 T2、T0 和 T4 之间存在明显差异（p ≤ 0.05）。观察到 MSC-55 品种的总叶绿素和类胡萝卜素含量在 T2 浓度时有所增加，而在污水浓度较高时，即 T4（100% 污水），含量有所下降。水泥工业废水（CIE）浓度的增加增强了两个品种中某些抗氧化化合物的生成，如愈创木酚过氧化物酶（GPX）和抗坏血酸过氧化物酶（APX），直至达到一定的处理浓度，即 MSC-55 和 Western-6。随着两个品种的污水浓度增加，叶片和根中的丙二醛（MDA）含量也随之上升。随着污水浓度的增加，过氧化氢酶（CAT）和超氧化物歧化酶（SOD）也有所增加。据观察，MSC-55 R. communis 品种对 CIE 具有很强的抗氧化防御系统，建议在金属污染的工业废水条件下种植。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT

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