Biotech Studies 2016, Vol 25, Num, 1     (Pages: 117-131)

The Role of the Relationship between Hydrogen Peroxide and Nitric Oxide in Plant Tolerance to Abiotic Stresses

Fahriye ÖCAL ÖZDAMAR 1 ,Gökçen BAYSAL FURTANA 1 ,Ş. Şebnem ELLİALTIOĞLU 2 ,Rukiye TIPIRDAMAZ 3

1 Gazi Üniversitesi Fen Fakültesi Biyoloji Bölümü, Ankara
2 Ankara Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü, Ankara
3 Hacettepe Üniversitesi Fen Fakültesi Biyoloji Bölümü, Ankara
DOI : 10.21566/tbmaed.45530 Viewed : 1429 - Downloaded : 195 Hydrogen peroxide (H2O2) and Nitric oxide (NO) are signalling molecules that play an important role in different organisms. Even though intensive research in the past two decades, knowledge about the role of these two molecules interact with each other in abiotic stress tolerance and the relationship with biological processes aren`t completely elucidated yet. In this paper, H2O2 and NO cross-talk and possible role in plant responses to abiotic stresses such as drought, salinity, extreme temperatures, UV irradiation and heavy metals at the level of biosynthesis and gene expression and protein activities are investigated in light of recent literature. In addition, the cross-talk between H2O2 and NO with other signalling pathways in the regulation of abiotic stress responses in plants is also discussed. Keywords : Abiotic stress, nitric oxide, hydrogen peroxide, signaling