tailieunhanh - Exogenously applied nitric oxide confers tolerance to salinity-induced oxidative stress in two maize (Zea mays L.) cultivars differing in salinity tolerance

A glasshouse study was conducted to examine the ameliorative effects of exogenously applied nitric oxide (NO) on salinityinduced oxidative defense mechanisms and some vital metabolic attributes in two maize cultivars differing in salinity tolerance. | Turkish Journal of Agriculture and Forestry Turk J Agric For (2015) 39: 909-919 © TÜBİTAK doi: Research Article Exogenously applied nitric oxide confers tolerance to salinity-induced oxidative stress in two maize (Zea mays L.) cultivars differing in salinity tolerance 1, 1 2 3 4 1 Cengiz KAYA *, Muhammed ASHRAF , Osman SÖNMEZ , Atilla Levent TUNA , Salih AYDEMİR Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Harran University, Şanlıurfa, Turkey 2 Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan 3 Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Erciyes University, Kayseri, Turkey 4 Department of Biology, Faculty of Science, Muğla University, Muğla, Turkey Received: Accepted/Published Online: Printed: Abstract: A glasshouse study was conducted to examine the ameliorative effects of exogenously applied nitric oxide (NO) on salinityinduced oxidative defense mechanisms and some vital metabolic attributes in two maize cultivars differing in salinity tolerance. It also aimed to compare the effects of two different modes of NO application on different parameters of plants grown under a saline regime. Two maize cultivars, namely DK 5783 (salt-tolerant) and Apex 836 (salt-sensitive), were subjected to saline stress, and two levels of NO were applied as presowing or foliage spray. Saline stress caused significant suppression in total fresh and dry biomass, maximum fluorescence yield (Fv/Fm), leaf water potential, and total chlorophylls (a + b) in the plants of both maize cultivars. On the other hand, it increased leaf osmotic pressure, proline accumulation, hydrogen peroxide (H2O2) and malondialdehyde (MDA) concentrations, membrane permeability, and the activities of some key antioxidant enzymes, peroxidase (POD), superoxide dismutase (SOD), and catalase (CAT). Exogenously applied NO in both modes .

• Nông nghiệp
• Leaf water potential
• Nitric oxide
• Oxidative stress
• Salt tolerance
• Superoxide dismutase
• Bud load
• Wine grape
• Veraison ripening periods
• Rain fed grape cultivation
• BMC Plant Biology
• Betula pendula
• Branch water potential
• Climate change
• Hydraulic conductance
• Net photosynthesis
• Silver birch
• Relative leaf water content
• Transpiration rate
• Leaf diffusion rate
• Leaf osmotic potential
• Ctenanthe setosa
• Enzyme activity
• Leaf rolling index
• Long term drought stress
• Relative water content
• Soil water status
• Energy balance methods
• Deficit irrigation
• Rio Red grapefruit
• Water stress
• Epicuticular wax
• Cell membrane stability
• Chlorophyll stability index
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp
• Zea mays L
• plants
• Salt stressed plants
• Agricultural science
• Drought stressed tobacco
• Water potential
• Organic osmolytes
• Leaf age