Seasonal variation of some antioxidant enzymes in Apple (Red delicious) leaves and buds during transition to flowering
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 5
Abstract
The apple (Malus domestica Borkh) is an important fruit crop and a focus of horticultural research. Flower formation in apple involves a long multi-step process, which can be recognized on the basis of histological and morphological differences of shoot apex. In the present study, buds and spur leaves were harvested from 6-yearold uniform-sized apple (cv. Red Delicious) trees grafted on MM-106 rootstock and trained to a central leader. Buds and spur leaves were sampled at 45, 60, 75, 90, 105 days after full bloom (DAFB). Superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR) specific activities were determined in crude protein extracts prepared from 0.1 g dry weight of plant material. According to the microscopic and biochemical results, the highest activity in APX, GR and SOD was achieved in 60 days after full bloom, and therefore this time is very important in transition to flowering. On the basis of these results, we suggest that antioxidant enzymes are one of the candidate factors for transition to flowering.
Authors and Affiliations
Gholamreza Gohari, Mohamad Dadpoor, Ali Movafeghi, Fariborz Zaree Nahandi, Habib Davati-Kazemnia
Keywords
Related Articles
- EP ID EP38416
- DOI -
- Views 133
- Downloads 0
Biodiversity and biogeography of praying mantid (Dictyoptera: Mantodea) in Punjab, Pakistan
Biodiversity means life variety of a particular place, habitation and when joint with biogeography becomes the study of biological diversity of environment isolated by barriers and both pronounce how and why distribution...
Effect of green manuring in combination with nitrogen on soil fertility and yield of bread wheat (Triticum aestivum) under double cropping system of Sinana-dinsho, Southeast Ethiopia
An experiment was conducted at Sinana-Dinsho from 2001 to 2003 to evaluate the short term effects of substituting vetch green manuring for fallow in 'Ganna' season under double cropping system. Three land preparation...
Effect of anthropogenic activities on an ecologically important wetland in Ghana
The objective of this research was to assess the level of pollution in the Sakumo wetland with emphasis on heavy metals contamination and their distribution in the wetland, which is being polluted from industrial, domes...
Assessing Criterla Agroecosystem Temheal: A Review
Intrusive agriculture development, searching for higher profitability, has inflicted permanent damage to agroecosystems. Rapid deterioration of structure and functional properties in agroecosystems has intensified the...
Study of seasonal changes in habitat suitability of Caracal caracal schmitzi (Maschie 1812) in the central desert of Iran
Caracal is one of 10 cat’s species in Iran that lives in plain and desert. Major changes in natural ecosystems and increasing desertification, threatens the habitat of Caracal and its symbiotic. This research aim was to...