Effects of Exogenous Nitric Oxide on Germination and Physiological Properties of Basil under Salinity Stress
Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JJMPB-2-1_014
تاریخ نمایه سازی: 6 آذر 1402
Abstract:
Nitric oxide (NO) is a bioactive molecule, which was found to have several physiological roles, including antioxidant. To have a better understanding of the effects of NO concentrations (۰, ۰.۱ and ۰.۲ mM) on germination, growth, photosynthetic pigments, lipid peroxidation and antioxidant activity of basil (Ocimum basilicum L.) under different salinity concentrations (۰, ۱۰۰ and ۲۰۰ mM of NaCl), a factorial experiment based on completely randomized design was carried out. Results revealed that salinity caused a significant decrease in germination characteristics and growth of basil. Increasing salinity concentration led to significant increase in the activity of superoxide dismutase (SOD), catalase (CAT), Ascorbate peroxidase (APX), proline content, malondialdehyde (MDA) and electrolyte leakage while content of photosynthetic pigments and relative water content were reduced. Application of NO (۰.۱ and ۰.۲ mM) under salinity stress improved germination traits, increased dry weight, chlorophyll content, antioxidant activity and proline content, while MDA content and electrolyte leakage were decreased. These results suggest that NO might induce salt tolerance in basil by preventing oxidative damage.
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Authors
Amir-Hossein Saeidnejad
Department of Agronomy, Ferdowsi University of Mashhad, Mashhad, Iran
Amin Pasandi-Pour
Department of Agronomy, Shahid Bahonar University of Kerman, Kerman, Iran
Neda Pakgohar
Faculty of Agriculture, Zabol University, Zabol, Iran
Hasan Farahbakhsh
Horticulture Research Institute, Shahid Bahonar University of Kerman, Kerman, Iran
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