关键词: Biomarker Biomonitor Oxidative stress Toxicity Tungsten

Mesh : Apium / drug effects Capsicum / drug effects growth & development metabolism Tungsten / toxicity Lipid Peroxidation / drug effects Superoxide Dismutase / metabolism Antioxidants / metabolism Catalase / metabolism Biomarkers / metabolism Ecotoxicology / methods Plant Roots / drug effects metabolism growth & development Plant Leaves / drug effects metabolism Oxidative Stress / drug effects

来  源:   DOI:10.7717/peerj.17601   PDF(Pubmed)

Abstract:
UNASSIGNED: Tungsten (W) is an emerging heavy metal pollutant, yet research remains scarce on the biomonitor and sensitive biomarkers for W contamination.
UNASSIGNED: In this study, celery and pepper were chosen as study subjects and subjected to exposure cultivation in solutions with five different levels of W. The physiological and biochemical toxicities of W on these two plants were systematically analyzed. The feasibility of utilizing celery and pepper as biomonitor organisms for W contamination was explored and indicative biomarkers were screened.
UNASSIGNED: The results indicated that W could inhibit plants\' root length, shoot height, and fresh weight while concurrently promoting membrane lipid peroxidation. Additionally, W enhanced the activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and total antioxidant capacity (TAOC) to counteract oxidative damage. From a physiological perspective, pepper exhibited potential as a biomonitor for W contamination. Biochemical indicators suggested that SOD could serve as a sensitive biomarker for W in celery, while TAOC and POD were more suitable for the roots and leaves of pepper. In conclusion, our study investigated the toxic effects of W on celery and pepper, contributing to the understanding of W\'s environmental toxicity. Furthermore, it provided insights for selecting biomonitor organisms and sensitive biomarkers for W contamination.
摘要:
钨(W)是一种新兴的重金属污染物,然而,关于W污染的生物标志物和敏感生物标志物的研究仍然很少。
在这项研究中,选择芹菜和辣椒作为研究对象,并在具有五种不同W水平的溶液中进行暴露培养。系统分析了W对这两种植物的生理生化毒性。探索了利用芹菜和辣椒作为W污染生物微生物的可行性,并筛选了指示性生物标志物。
结果表明,W可以抑制植物的根长,射击高度,和鲜重,同时促进膜脂过氧化。此外,W增强了超氧化物歧化酶(SOD)的活性,过氧化氢酶(CAT),过氧化物酶(POD),和总抗氧化能力(TAOC)以抵抗氧化损伤。从生理的角度来看,胡椒显示出作为W污染的生物监测器的潜力。生化指标提示SOD可作为芹菜中W的敏感生物标志物,而TAOC和POD更适合辣椒的根和叶。总之,我们的研究调查了W对芹菜和辣椒的毒性作用,有助于了解W的环境毒性。此外,它为选择生物监测生物和W污染的敏感生物标志物提供了见解。
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