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AuthorJing, Ma
AuthorSaleem, Muhammad Hamzah
AuthorAlsafran, Mohammed
AuthorJabri, Hareb Al
AuthorMehwish
AuthorRizwan, Muhammad
AuthorNawaz, Muhammad
AuthorAli, Shafaqat
AuthorUsman, Kamal
Available date2022-08-30T07:37:19Z
Publication Date2022-09-15
Publication NameEcotoxicology and Environmental Safety
Identifierhttp://dx.doi.org/10.1016/j.ecoenv.2022.113969
CitationMa, J., Saleem, M. H., Alsafran, M., Al Jabri, H., Rizwan, M., Nawaz, M., ... & Usman, K. (2022). Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress. Ecotoxicology and Environmental Safety, 243, 113969.
ISSN01476513
URIhttps://www.sciencedirect.com/science/article/pii/S0147651322008090
URIhttp://hdl.handle.net/10576/33517
AbstractSoil contamination with cadmium (Cd) is a persistent threat to crop production worldwide. The present study examined the putative roles of nitric oxide (NO) in improving Cd-tolerance in cauliflower (Brassica oleracea L.). The present study was conducted using four different genotypes of B. oleracea named as FD-3, FD-4, FD-2 and Ceilo Blanco which were subjected to the Cd stress at various concentrations i.e., 0, 5, 10 and 20 µM with or without the application of NO i.e., 0.10 mM in the sand containing nutrient Hoagland’s solution. Our results illustrated that the increasing levels of Cd in the sand, significantly (P < 0.05) decreased shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, germination percentage, germination index, mean germination time, time to 50% germination, chlorophyll a, chlorophyll b, total chlorophyll and carotenoid contents in all genotypes of B. oleracea. The concentration of malondialdehyde (MDA) and Cd accumulation (roots and shoots) increased significantly (P < 0.05) under the increasing levels of Cd in all genotypes of B. oleracea while antioxidant (enzymatic or non-enzymatic) capacity and nutritional status of the plants was decreased with varying levels of Cd in the sand. From all studied genotypes of B. oleracea, Ceilo Blanco and FD-4 was found to be most sensitive species to the Cd stress under the same levels of the Cd in the medium while FD-2 and FD-3 showed more tolerance to the Cd stress compared to all other genotypes of B. oleracea. Although, toxic effect of Cd in the sand can overcome by the application of NO which not only increased plant growth and nutrients accumulation but also decreased the oxidative damage to the membranous bounded organelles and also Cd accumulation in various parts of the plants in all genotypes of B. oleracea. Hence, it was concluded that application of NO can overcome Cd toxicity in B. oleracea by maintaining the growth regulation and nutritional status of the plant and overcome oxidative damage induced by Cd toxicity in all genotypes of B. oleracea.
SponsorThe authors highly acknowledge the Government College University, Faisalabad, Pakistan for their financial support to complete this project. This work was supported by the National Natural Science Foundation of China (No. 51974313) and the Key Project of Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization (2020ZDZZ03). This work was supported by the Qatar University vegetable factory project QUEX-CASMJF-VF-18-19. Open Access funding provided by the Qatar National Library.
Languageen
PublisherElsevier
SubjectSNP
Reactive oxygen species
Cauliflower genotypes
Nutritional status
TitleResponse of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress
TypeArticle
Volume Number243
Open Access user License http://creativecommons.org/licenses/by/4.0/
dc.accessType Open Access


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