INTERACTIONS BETWEEN CADMIUM AND PHYTOCHELATIN ACCUMULATION IN TWO DIFFERENT SUNFLOWER CULTIVARS
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Parlar Scientific Publications (P S P)
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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 annuus cv. Meric and sensitive Tarsan 1018. The seedlings were grown for 15 days in Hoagland solution and then exposed to CdSO4 at 150 mu M, 200 mu M, 250 mu M and 300 mu M for 4 days. Most cadmium accumulations were determined in the roots of both cultivars on the 2(nd) and 4(th) 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 2(nd) and 4(th) 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.
Açıklama
Anahtar Kelimeler
Heavy metal, cadmium stress, cadmium accumulation, phytochelatin, sunflower, Helianthus annuus
Kaynak
Fresenius Environmental Bulletin
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
18
Sayı
3
