Determination of Physiological Indices and Some Antioxidant Enzymes of Chard Exposed to Nitric Oxide under Drought Stress

EKİNCİ M., ÖRS CIRIK S., YILDIRIM E., TURAN M., ŞAHİN Ü., DURSUN A., ...Daha Fazla

RUSSIAN JOURNAL OF PLANT PHYSIOLOGY, cilt.67, sa.4, ss.740-749, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 4
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1134/s1021443720040056
  • Dergi Adı: RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Veterinary Science Database
  • Sayfa Sayıları: ss.740-749
  • Anahtar Kelimeler: Beta vulgaris, antioxidant enzyme, stomatal conductance, photosynthesis, water deficit, WATER-STRESS, STOMATAL CLOSURE, GAS-EXCHANGE, TOLERANCE, RESPONSES, PLANTS, MAIZE, VULGARIS, CAPACITY, GROWTH
  • Atatürk Üniversitesi Adresli: Evet

Özet

This research was carried out to determine effectiveness of nitric oxide (NO) on some physiological and biochemical reactions, and water use efficiency (WUE) of chard (Beta vulgarisL. var. cicla) under well-watered and drought conditions. NO solutions were prepared with four doses (0, 50, 100, 150 and 200 mu M) of sodium nitroprusside as a nitric oxide donor and exogenously applied on only seeds (s) or together with seed and foliar (sf) of chard under different levels of drought according to 100 (control), 67 and 33% of the water required to reach field capacity. NO mitigated the negative effects of drought stress on fresh and dry weights of leaf and root, chlorophyll content, gas exchange parameters and electrical leakage in all doses, especially for doses of 100 and 150 mu M for both s and sf applications. Higher antioxidant enzyme content was observed with the application of NO especially under well-watered conditions. Mild drought conditions caused a desirable increase on WUE of the chard.