Bülent AKGÜL, Lokman ÖZTÜRK, Dursun KISA, Nusret GENÇ

De-etiolasyon Sürecinde Fasulye (Phaseolus vulgaris L.) Yapraklarında Antioksidan Enzim Aktiviteleri ve Toplam Fenolik Bileşik Miktarlarında Değişimler

Bu çalışmada, de-etiyole fasulye fidelerinde antioksidan enzim aktiviteleri, hidrojen peroksit, malondialdehit ve total fenolik madde miktarları araştırılmıştır. De-etiyole fasulye yapraklarında katalaz (CAT), peroksidaz (POD) ve askorbat peroksidaz (APX) aktiviteleri kontrol (ışık) grubuyla karşılaştırıldığında kısmi olarak yüksek olduğu görülmüştür. De-etiyole fasulye bitkisinde lipid peroksidasyonu kontrol grubundan önemli oranda yüksek olmasına rağmen hidrojen peroksit miktarında önemli bir fark yoktur. Total fenolik bileşikler kontrol ve de-etiyole bitkilerde yüksek oranda gözlenirken etiyole fidelerde belirlenememiştir. Karanlık-ışık geçişlerinde oksidatif hasar azalırken total fenolik bileşik miktarında artış meydana gelmiştir.

Anahtar Kelimeler:

De-etiyole, fasulye, hidrojen peroksit, lipid peroksidasyonu

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