Back to Search
Start Over
The effect of different concentrations of salicylic acid on protective enzyme activities of pepper (Capsicum annuum L.) plants.
- Source :
-
Pakistan journal of biological sciences : PJBS [Pak J Biol Sci] 2007 Sep 15; Vol. 10 (18), pp. 3162-5. - Publication Year :
- 2007
-
Abstract
- The objective of this study was to investigate the effects of different concentration (0, 0.1, 0.7, 1.5, 3, 6 and 9 mM) of SA on antioxidant enzymes in Capsicum annuum L. plants. Enzyme activities of peroxidase, polyphenol oxidase, ascorbate peroxidase, catalase and glutathione reductase were measured. The plants were grown in pots vermiculite. Before applying the salicylic acid treatments, plants filled with were irrigated with based nutrient solution (Hoagland solution) for 5 weeks. After 5 weeks, plants were sprayed with different concentrations (0, 0.1, 1.5, 3, 6 and 9 mM) of salicylic acid. Data were analyzed using SPSS software and means were compared by Duncan test. In each experiment 4 replicats were used. Concentrations of 1.5, 3, 6 and 9 mM of SA caused significant increase in polyphenol oxidase and peroxidase enzyme activities in treated leaves. Concentrations of 0.7, 1.5 ad 3 mM of SA decreased in (catalase, ascorbate peroxidase and glutathione reductase) activities, but concentrations of 6 and 9 Mm of SA increased enzyme activities. Different concentrations of salicylic acid had different effects on enzyme activities in Capsicum annuum L.
- Subjects :
- Aluminum Silicates chemistry
Antioxidants chemistry
Capsicum metabolism
Catechol Oxidase chemistry
Dose-Response Relationship, Drug
Glutathione Reductase metabolism
Peroxidase chemistry
Peroxidase metabolism
Peroxidases metabolism
Plant Extracts pharmacology
Salicylic Acid chemistry
Time Factors
Capsicum enzymology
Gene Expression Regulation, Enzymologic drug effects
Plant Extracts analysis
Salicylic Acid pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1028-8880
- Volume :
- 10
- Issue :
- 18
- Database :
- MEDLINE
- Journal :
- Pakistan journal of biological sciences : PJBS
- Publication Type :
- Academic Journal
- Accession number :
- 19090118
- Full Text :
- https://doi.org/10.3923/pjbs.2007.3162.3165