Читать книгу Physiology of Salt Stress in Plants - Группа авторов - Страница 37

Peroxisomes play a crucial role in plant physiology. It is the organelle where β‐oxidation of fatty acids, part of the photorespiratory pathway, glyoxylate cycle, biosynthesis of phytohormones: auxin, JA and SA, and ROS metabolism occurs (Fahy et al. 2017). The peroxisome is the primary site of ROS generation, detoxification, and also involved in energy‐producing metabolism. Hypothetically, it is plausible that in salt stress, the peroxisomes' biogenesis and functional activities might be increased to cope with increased photorespiratory pathway, increased energy demand, and increased ROS level. In several previous studies, the increased number of peroxisomes was reported in plants subjected to salt stress (Mitsuya et al. 2010). A peroxisomal membrane protein family PEX11 is known to regulate the size and number of peroxisome in plants, animals, and yeast (Mitsuya et al. 2010). During salt stress in plants, the expression of proteins from the PEX11 families is upregulated (Fahy et al. 2017; Mitsuya et al. 2010). However, there is no evidence found so far, which supports the hypothesis of increased functional activity of the peroxisome and to understand that a detailed study is still missing.