Silver Nanoparticles-Cow Dung Combination Disrupts Physiology, Enzyme Activities with Corresponding Increased Oxidative Stress and Heavy Metal Accumulation in Abelmoschus esculentus.
Bull Environ Contam Toxicol
; 109(5): 893-899, 2022 Nov.
Article
en En
| MEDLINE
| ID: mdl-35989378
ABSTRACT
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.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Metales Pesados
/
Abelmoschus
/
Nanopartículas del Metal
Límite:
Animals
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Año:
2022
Tipo del documento:
Article
País de afiliación:
Nigeria