ALÜMİNYUM TOKSİSİTESİNE Ocimum basilicum var. Purpurascens’İN FİZYOLOJİK YANITLARI

Yıl 2020, Cilt: 15 Sayı: 3, 85 - 93, 30.07.2020

Pınar Aksoy , Muhittin Doğan

Öz

Bu çalışmanın amacı, kontrollü şartlarda ve su kültürü ortamında yetiştirilen Ocimum basilicum var. purpurascens (mor reyhan)’te Al’nin fizyolojik etkilerini değerlendirmektedir. Bu ortama alıştırma periyodu sonunda, fidelere 0, 5, 25 ve 50 mg/L Al uygulanmıştır. Fideler 12 gün sonra hasat edilmiştir. Al toksisitesinden dolayı fidelerin büyüme ve gelişimleri azalmıştır. Uygulanan derişime bağlı olarak fide yapraklarının Klo-a, Klo-b ve karotenoid miktarı azalmıştır. Ancak, antosiyanin miktarları önemli bir değişim göstermemiştir. Bunun yanında MDA, hidrojen peroksit, toplam fenolik madde ve protein olmayan SH gruplarında derişime bağlı olarak genelde artışlar bulunmuştur. Bu sonuçlar, mor reyhan fidelerinde Al tarafından indüklenen oksidatif stresin varlığını gösterebilir.

Anahtar Kelimeler

Ocimum basilicum var. purpurascens, Al toksisitesi, Büyüme, Fizyolojik Etki

Kaynakça

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