Journal of Agriculture and Horticulture Research(JAHR)

Unité Propre de Recherche Innovante, ERIT PSII Plant Science, Interactions and Innovation, Institut Agroscinces, Environnement et Santé, Avignon Université, Avignon, France

Publications

• Research Article   
  Differential Redox Regulation and Antioxidant Dynamics in Tomato Fruits Under Mercury Stress
  Author(s): Ramzi Murshed*, Sanders Junglee, Huguette Sallanon, Laurent Urban and Felicie Lauri
  
  The present study investigated the impact of mercury exposure on plant water status, oxidative stress markers, and antioxidant defense systems in leaves and fruits of tomato (Solanum lycopersicum L. cv. Micro-Tom). Plants were exposed to increasing concentrations of HgCl2 for 24 and 48 h. Mercury treatment led to a significant reduction in predawn leaf water potential, whereas other water-related parameters in both leaves and fruits remained largely unaffected. Oxidative stress was predominantly observed in leaves, as indicated by elevated hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels, while fruit tissues showed no significant accumulation of these oxidative markers. In contrast, fruits exhibited a marked activation of antioxidant defenses, including increased activities of superoxide dismutase (SOD) and catalase (CAT), along with concentration- dependent modulation of asc.. Read More»
  

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