{Reference Type}: Journal Article
{Title}: Ecotoxicological effects of tungsten on celery (Apium graveolens L) and pepper (Capsicum spp.).
{Author}: Li Q;Zheng X;Chen M;
{Journal}: PeerJ
{Volume}: 12
{Issue}: 0
{Year}: 2024
{Factor}: 3.061
{DOI}: 10.7717/peerj.17601
{Abstract}: <B>UNASSIGNED: </B>Tungsten (W) is an emerging heavy metal pollutant, yet research remains scarce on the biomonitor and sensitive biomarkers for W contamination.<BR><B>UNASSIGNED: </B>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.<BR><B>UNASSIGNED: </B>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.