Sublethal heavy metal stress stimulates innate immunity in tomato.
Nilanjan ChakrabortySwarnendu ChandraKrishnendu AcharyaPublished in: TheScientificWorldJournal (2015)
Effect of sublethal heavy metal stress as plant biotic elicitor for triggering innate immunity in tomato plant was investigated. Copper in in vivo condition induced accumulation of defense enzymes like peroxidase (PO), polyphenol oxidase (PPO), phenylalanine ammonia-lyase (PAL), and β-1,3 glucanase along with higher accumulation of total phenol, antioxidative enzymes (catalase and ascorbate peroxidase), and total chlorophyll content. Furthermore, the treatment also induced nitric oxide (NO) production which was confirmed by realtime visualization of NO burst using a fluorescent probe 4,5-diaminofluorescein diacetate (DAF-2DA) and spectrophotometric analysis. The result suggested that the sublethal dose of heavy metal can induce an array of plant defense responses that lead to the improvement of innate immunity in plants.
Keyphrases
- heavy metals
- fluorescent probe
- nitric oxide
- risk assessment
- health risk assessment
- health risk
- hydrogen peroxide
- high glucose
- living cells
- diabetic rats
- sewage sludge
- drug induced
- high resolution
- high throughput
- stress induced
- endothelial cells
- high frequency
- anti inflammatory
- heat stress
- replacement therapy
- innate immune
- drinking water