Nitric oxide alleviates freezing stress by reducing oxidative injury in Citrumelo leaves
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 9, Issue 1
Abstract
Freezing stress causes economical losses of citrus in the world. Nitric oxide could alleviate this stress. In this study the effects of sodium nitroprusside (SNP) as NO donor (0, 0.1 and 1 mM) on temperature treatments (+9, -3, -6 and -9°C) were evaluated. Application of 0.1 mM SNP decreased the electrolyte leakage and lipid peroxidation of Citrumelo leaves significantly. The highest antioxidant activity was detected in 0.1 mM SNP at -6 °C. Maximum content of total phenolics was at -9 °C and 0.1 mM SNP application. SNP also had positive effects on antioxidant enzymes activity. Superoxide dismutase, catalase and peroxidase had highest activity at -6°C with 0.1 mM SNP, and the highest activity of APX was in 0.1 mM SNP at -9°C. The results showed nitric oxide released from SNP increased the antioxidant capacity of Citrumelo leaves against freezing induced oxidative stress.
Authors and Affiliations
Mojdeh Nazarpour, Fariborz Zare Nahandi, Mohammad Reza Dadpour
Keywords
Related Articles
- EP ID EP38887
- DOI -
- Views 122
- Downloads 0
Spatial distribution and density of Striga hermonthica (Del.) benth infestation associated with cereal production in southern guinea savanna farming systems
This study describes the distribution patterns of S. hermonthica infestation present in 117 farmers’ fields located in 61 villages in the three major cereal growing areas of Benue and Nasarawa states. A total of 1098 re...
Early growth stages structure and distribution of Pericopsis elata (Harms) van Meeuven in a logging concession of South – East Cameroon
Pericopsis elata (Harms) van Meeuwen is a tropical Africa's timber of high economic value. In many countries its low natural regeneration rate does not favor the replacement of harvested populations, thus CITES and IUCN...
Applied systems approach to wind erosion control engineering model
This study deals with the supplied systems approach to wind erosion and control engineering. Many humid regions of the world are damaged by wind erosion, wind distribution with height; wind erosion types, mechanics and...
Effect of chemical and bio nitrogen fertilizer on yield and yield components of soybean under intercropping with maize
In order to study the effect of chemical and bio nitrogen fertilizer on yield and yield components of soybean at intercropping system of maize, an experiment was conducted at the Research Farm of the Faculty of Agricultu...
Selection of an appropriate planting time (between the last and the first frost)
Yearly frost and freezing, especially during the spring season often causes heavy damages to fruit trees in Chaharmahal and Bakhtiari province, Iran. Therefore, to reduce the effects of this natural event hazard, approac...