FRESENIUS ENVIRONMENTAL BULLETIN, cilt.34, sa.2, ss.159-169, 2025 (SCI-Expanded)
Anthropogenic activities are intensifying global warming, which in turn is increasingly leading to destructive environmental issues such as elevated temperature, salinity, and drought. It is expected that, due to climate change, the proportion of arable land affected by salinity will increase, thereby exacerbating the threat to global food security posed by a rapidly growing population. Consequently, efforts to reduce yield losses have become a central focus. Wheat is the world’s most important cereal crop in terms of nutrition. It is well established that abiotic stresses, including salinity stress, disturb plant homeostasis and cause nuclear damage. Chitosan (Cht), a signaling molecule, has been shown to mitigate the adverse effects of salinity stress in plants. This study aimed to elucidate the biochemical changes induced by salt stress in wheat and to assess the efficacy of chitosan application in preventing nuclear physical damage. The results demonstrated that salinity significantly affects the levels of superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA), while also increasing the parameters (tail length, tail % DNA, and tail moment) used to quantify nuclear physical damage. Furthermore, chitosan application contributed to improved plant homeostasis and a reduction in nuclear damage.