Silver Nanoparticles-Cow Dung Combination Disrupts Physiology, Enzyme Activities with Corresponding Increased Oxidative Stress and Heavy Metal Accumulation in Abelmoschus esculentus

• Published in: Bulletin of environmental contamination and toxicology Vol. 109; no. 5; pp. 893 - 899
• Main Authors: Azeez, Luqmon, Oyedeji, Abdulrasaq O., Aremu, Harun K., Busari, Hassan K., Adekale, Idris, Olabode, Olalekan A.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-11-2022; Springer Nature B.V
• Subjects: Abelmoschus esculentus; Aquatic Pollution; Bioaccumulation; Carotenoids; Cattle manure; Dung; Earth and Environmental Science; Ecotoxicology; Elongation; Environment; Environmental Chemistry; Environmental Health; Enzymatic activity; Enzymes; Foliar applications; Heavy metals; Metals; Micronutrients; Nanoparticles; Nanotechnology; Oxidative stress; Photosynthesis; Physiology; Plant resistance; Pollution; Seedlings; Silver; Soil Science & Conservation; Toxicology; Waste Water Technology; Water Management; Water Pollution Control; Cow-dung; AgNPs; Oxidative stress; Growth inhibition; Bioaccumulation; Enzymatic activities
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-022-03594-4

The effects of a silver nanoparticles (AgNPs)-cow-dung combination on
Abelmoschus esculentus
physiology, enzyme activities, heavy metal bioaccumulation, and micronutrients were investigated.
A. esculentus
seedlings were nurtured with foliar application of water, 0.75 mg/L each of AgNPs, cow-dung and AgNPs-cow dung till maturity. AgNPs-cow dung inhibited root and shoot lengths by 12.9% and 24.8%, respectively as opposed to elongation recorded for individual application compared to the control. In contrast to the promotion of photosynthesis, enzyme and antioxidant activities by individual applications, AgNPs-cow dung suppressed more than 50% of these parameters. Implied toxicities of AgNPs-cow dung on
A. esculentus
manifested in increased malondialdehyde contents with concomitant higher bioaccumulation factor of heavy metals. Cow-dung and AgNPs each stimulated
A. esculentus
activities in different ways, but their combination was inhibitory, which may be ascribed to the transformed AgNPs in cow-dung and relative availability of toxic metals.