Web1 de jul. de 2024 · Significance: Plant chloroplasts generate reactive oxygen species (ROS) during photosynthesis, especially under stresses. The sulfhydryl groups of protein … Web13 de out. de 2012 · Effects of heat stress on the photosynthesis system and antioxidant activities in Fingered citron (Citrus medica var. sarcodactylis Swingle) were investigated. Two-year-old Fingered citron plants were exposed to different temperature (28, 35, 40, and 45°C) for 6 h; then the photosynthetic capacity, chlorophyll fluorescence, chloroplast …
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Web4 de jun. de 2024 · Chlorophyll synthesis requires many elements [i.e., nitrogen (N), phosphorous (P)] from soils; thus, soils should influence Chl (Fredeen et al., 1990). The … Web13 de mai. de 2024 · Heat stress is also responsible for oxidative stress damage through production of reactive oxygen species (ROS), particularly in chloroplasts in the absence of detoxification system. Chlorophyll molecules experience over-excitation due to high temperature, leading to ROS generation. immobilized cell systems
Plant Chloroplast Stress Response: Insights from Thiol Redox ... - PubMed
Web7 de abr. de 2024 · An integrated view of the factors underlying the decrease in photosynthetic rate under high-temperature (HT) stress was provided by analyzing the biochemical parameters, chloroplast ultrastructure, gas-exchange parameters, chlorophyll fluorescence, and modulated 820 nm reflection of herbaceous peony leaves. Web1 de jul. de 2024 · Significance: Plant chloroplasts generate reactive oxygen species (ROS) during photosynthesis, especially under stresses. The sulfhydryl groups of protein cysteine residues are susceptible to redox modifications, which regulate protein structure and function, and thus different signaling and metabolic processes. Web26 de nov. de 2013 · Heat stress caused a loss of pigment content in flag leaves by decreasing the content of both chlorophyll a+b and carotenoid in both cultivars (Table 2 ). At the same time, the ratio of chlorophyll a/b was reduced by heat stress. immobilized enzymes: a comprehensive review