Hydrogen peroxide extends postharvest life of Ctenanthe setosa leaf cuts under osmotic stress by reducing leaf rolling
Yükleniyor...
Dosyalar
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Soc Horticultural Science
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Reducing effects of exogenous hydrogen peroxide on leaf rolling in detached leaves of Ctenanthe setosa were studied. The leaves were kept in H2O2 solutions ranging from 0 to 1 mM for 48 h and then, osmotic stress was applied for 4 h by polyethylene glycol (PEG). Degree of leaf rolling, loss of leaf water, and malondialdehyde (MDA) content were reduced by 0.2 mM H2O2. Antioxidant enzymes were induced by 0.2 mM H2O2. Endogenous H2O2 content was increased after the 0.5 and 1 mM H2O2 treatments but was decreased after 0.2 mM H2O2 treatment. Proline was decreased after exogenous H2O2 applications. Total soluble sugar content was increased as compared to the control after 0.2 mM H2O2 treatment. In conclusion, low-dose exogenous H2O2 treatment could delay leaf rolling by inducing tolerance to osmotic stress due to modulation of the antioxidant system, soluble sugar accumulation, and maintenance of leaf hydration. Therefore, postharvest life of C. setosa cut foliage could be extended by 0.2 mM H2O2 treatments.
Açıklama
Anahtar Kelimeler
Antioxidant, cut foliage, Marantaceae, prayer plant, reactive oxygen species (ROS), vase life
Kaynak
Horticulture Environment and Biotechnology
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
55
Sayı
4
Künye
Sağlam, A., Kalaycıoğlu, E., Güven, F. G., Saruhan, N., Kadıoğlu, A., & Demiralay, M. (2014). Hydrogen peroxide extends postharvest life of Ctenanthe setosa leaf cuts under osmotic stress by reducing leaf rolling. Horticulture, Environment, and Biotechnology, 55(4), 308-314.
