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<p>This study investigates the physiological and biochemical interactions between <i>Eurydema ventralis</i> infestation and cauliflower (<i>Brassica oleracea</i> L. var. <i>botrytis</i> L.) plants grown under different atmospheric CO<sub>2</sub> concentrations. The primary research goal was to examine the impact of high CO<sub>2</sub> levels on cauliflower susceptibility and physiological responses to infestation by <i>E. ventralis</i> (Hemiptera: Pentatomidae).Cauliflower plants were grown under three CO<sub>2</sub> levels (400 ppm control, 800 ppm, 1200 ppm) and infested by <i>E. ventralis</i> for four days. Physiological responses were evaluated by measuring photosynthetic assimilation, stomatal conductance, and volatile organic compound emissions (GC–MS), while biochemical responses were assessed through chlorophyll, carotenoid, flavonoid, and phenolic analyses.Elevated CO<sub>2</sub> increased photosynthesis but reduced stomatal conductance. Infestation significantly decreased photosynthesis and stomatal conductance, especially at higher CO<sub>2</sub> levels, and triggered increased emissions of monoterpenes, sesquiterpenes, and 2-hexenyl acetate. The levels of chlorophyll, carotenoids, and flavonoids decreased, indicating trade-offs between growth and defense under elevated CO<sub>2</sub> conditions.The increase in carbon dioxide affects cauliflower’s physiological and biochemical responses, as well as its vulnerability to <i>E. ventralis</i> infestation. Current results on the physiological trade-offs between growth and defense reveal the complexity of plant-insect interactions under climate change scenarios. These insights are crucial for designing sustainable agriculture techniques to preserve production in future climates.</p>

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The Impact of Eurydema Ventralis Infestation on Brassica Oleracea var. Botrytis Grown at Different CO2 Concentrations in Romania

  • 期刊论文

  • 发表日期：

    2025年10月14日

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  • Andreea Lupitu,
  • Flavia Bortes,
  • Cristian Moisa,
  • Dana Maria Copolovici,
  • Lucian Copolovici

摘要

This study investigates the physiological and biochemical interactions between Eurydema ventralis infestation and cauliflower (Brassica oleracea L. var. botrytis L.) plants grown under different atmospheric CO2 concentrations. The primary research goal was to examine the impact of high CO2 levels on cauliflower susceptibility and physiological responses to infestation by E. ventralis (Hemiptera: Pentatomidae).Cauliflower plants were grown under three CO2 levels (400 ppm control, 800 ppm, 1200 ppm) and infested by E. ventralis for four days. Physiological responses were evaluated by measuring photosynthetic assimilation, stomatal conductance, and volatile organic compound emissions (GC–MS), while biochemical responses were assessed through chlorophyll, carotenoid, flavonoid, and phenolic analyses.Elevated CO2 increased photosynthesis but reduced stomatal conductance. Infestation significantly decreased photosynthesis and stomatal conductance, especially at higher CO2 levels, and triggered increased emissions of monoterpenes, sesquiterpenes, and 2-hexenyl acetate. The levels of chlorophyll, carotenoids, and flavonoids decreased, indicating trade-offs between growth and defense under elevated CO2 conditions.The increase in carbon dioxide affects cauliflower’s physiological and biochemical responses, as well as its vulnerability to E. ventralis infestation. Current results on the physiological trade-offs between growth and defense reveal the complexity of plant-insect interactions under climate change scenarios. These insights are crucial for designing sustainable agriculture techniques to preserve production in future climates.