Smoke alleviates adverse effects induced by stress on rice

• Published in: Toxicological and environmental chemistry Vol. 96; no. 5; pp. 755 - 767
• Main Authors: Malook, Ijaz, Atlas, Amir, Rehman, Shafiq ur, Wang, Wenyi, Jamil, Muhammad
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 28.05.2014; Taylor & Francis Ltd
• Subjects: alleviation; Biochemistry; Cymbopogon; Dilution; DNA damage; Germination; Oryza sativa; Oxidative stress; Plant growth; Plants (organisms); priming; Rice; Saline; Salinity; salt stress; Smoke; Stresses
• ISSN: 0277-2248; 1029-0486
• DOI: 10.1080/02772248.2014.912776

Smoke and salinity are environmental hazards. Smoke produced DNA damage, inflammatory, and oxidative stress in humans while salinity reduced plant yield. However, smoke from plants is beneficial towards plant growth. In this study, smoke of two plants, Buhania varegata (1:1000 and 1:5000 dilutions (v/v)) and Cymbopogon jwarancusa (1:500 and 1:1000), were used to determine effects on different physiological and biochemical parameters in rice Basmati-385 (B-385) and Shaheen Basmati under different saline concentrations (control: 50, 100, and 150 mM). With increasing salinity, germination%, seedling growth, K + , Ca + , cell membrane stability, and total nitrogen and protein contents were decreased while Na + content increased. However, seeds primed with different dilution of smoke significantly diminished the adverse effects of salinity and shown to produce positive responses in all of the above parameters. The most effective dilutions were 1:5000 for Buhania varegata and C-500 for Cymbopogon jwarancusa. It seems that priming with plant smoke solution is a potent stimulant for plant growth exerting a significant role in physiology and biochemistry of rice plants under saline condition.