Interactions between cadmium and phytochelatin accumulation in two different sunflower cultivars

DOĞANLAR Z. B., YÜREKLİ F.

Fresenius Environmental Bulletin, cilt.18, sa.3, ss.304-310, 2009 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 3
  • Basım Tarihi: 2009
  • Dergi Adı: Fresenius Environmental Bulletin
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.304-310
  • Anahtar Kelimeler: Cadmium accumulation, Cadmium stress, Heavy metal, Helianthus annuus, Phytochelatin, Sunflower
  • Trakya Üniversitesi Adresli: Hayır

Özet

The effects of cadmium sulfate on cadmium accumulation and phytochelatin synthesis were investigated in leaf, stem and root tissues of two sunflower cultivars, cadmium tolerant Helianthus annum cv. Meriç and sensitive Tarsan 1018. The seedlings were grown for 15 days in Hoagland solution and then exposed to CdSO4 at 150 μM, 200 μM, 250 μM and 300 μM for 4 days. Most cadmium accumulations were determined in the roots of both cultivars on the 2nd and 4th day. The cadmium sensitive cultivar, Tarsan 1018, accumulated more Cd in all tissues compared to the tolerant cultivar. Phytochelatin synthesis was induced by Cd exposure in both cultivars at the 2nd and 4th day. Higher phytochelatin accumulation was observed in root tissues of Tarsan 1018 cultivar at the 4 th day. Phytochelatin levels in all tissues of both cultivars increased depending on Cd accumulation in those tissues.