Durum Wheat Cultivars’ Antioxidant and Nitrate Assimilatory Enzyme Response to Bipolaris Sorokiniana Infection
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 4
Abstract
The biochemical responses of the foliar antioxidant and nitrate assimilatory enzymes to Bipolaris sorokiniana infection were studied in resistant (NIDW295 and PDW314) and susceptible (Bijaga Yellow and A-3-901) durum wheat cultivars. 30 day old durum wheat cultivars were inoculated with spore suspension (106 ml-1) of Bipolaris sorokiniana and the uninfected plants served as control. The activities of reactive oxygen species (ROS) scavenging enzymes namely superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) were strongly induced, while those of nitrate reductase and nitrite reductase were suppressed in inoculated leaves (48 hrs post inoculation) compared to healthy ones. The SOD, CAT and GR recorded maximum increase of 344%, 74% and 157% respectively in the resistant cultivars, suggesting their induction for detoxifying ROS synthesized during Bipolaris sorokiniana infection. The relatively lower activities of antioxidant enzymes in the susceptible cultivars make them more prone to oxidative injury than the resistant cultivars. The minimum decline in enzyme activities of nitrite and nitrate reductase in resistant cultivars (29.2% and 25.7% respectively) showed adequate nitrogen regulation, while the susceptible cultivars lacked the ability to maintain the nitrogen metabolism under infection. Thus, our study revealed significant differences in antioxidant enzyme and nitrate assimilatory activities between the Durum wheat cultivars, which may serve as a useful tool in selection of resistant cultivars.
Authors and Affiliations
Komal Mali, Kiran Kamalakar Mirajkar, Suma Biradar, Renuka Sudarshan Patil
Keywords
Related Articles
- EP ID EP237262
- DOI -
- Views 136
- Downloads 0
A SOCIO-ECONOMIC PROFILE OF THE UNORGANIZED DAIRY FARMERS
Dairying has become an important secondary source of income for millions of rural families and has assumed the most important role in providing employment and income generating opportunities particularly for marginal and...
Indigenous Traditional Knowledge on Crop Protection Practices
Indigenous knowledge is exclusive to a specific culture of society. This knowledge is the information base for a society and it enables communication and decision making. They are tactics and techniques developed by loca...
Impact of Change in Dietary Behaviors and Iron Supplementation for Reduction of Iron Deficiency Anemia in Rural Adolescent Girls
Iron deficiency, anemia is a serious and widespread public health concern in both developing and developed countries. The Prevalence of IDA is high in developing countries, than in the developed countries due to poverty,...
IMPACT OF SUMMER SEASON, PLANT DENSITY AND INTEGRATED NUTRIENT MANAGEMENT ON POSTHARVEST QUALITY OF GUAVA CV. LALIT
The guava (Psidium guajava L.) cv. Lalit" was studied under different spacing (2 x 2, 3 x 3, 6 x 3 and 6 x 6 m) in rainy season for postharvest quality at Regional Horticulture Research Station, College of Horticulture,...
AN ECONOMIC ANALYSIS OF ZERO-TILLAGE WHEAT PRODUCTION IN EASTERN UTTAR PRADESH, INDIA
Conservation agriculture saves the cost of irrigation, energy and protects the environment while leading to improved productivity on a sustainable basis. The present study was an attempt to analyze the farm-level impact...