TY - JOUR AU - Wu, Jincai AB - INTRODUCTIONCallose is a plant cell wall polysaccharide found in many parts of higher plants. Studies have shown that callose accumulation is related to plant resistance. Callose deposition on the plasmodesmata limits the transport corridor and impedes macromolecular transport between cells, whereas callose accumulation in the plasmodesmata promotes macromolecular transport through it. Callose synthesis and degradation during plant growth and development respond to external mechanical damage and biological stress induced by pathogen invasion, and to abiotic stress induced by physical, chemical and environmental factors. When plants are subjected to biotic and abiotic stresses, the cell wall and relevant structures, such as intercellular silk, can regulate intercellular silk bottleneck shrinkage or swelling, which is relevant to callose deposition and degradation. Callose metabolism is mainly controlled by callose synthase and β‐1,3‐glucanase. Studies have reported that callose synthesis is induced in the plant epidermis and phloem within a few minutes under external environmental stress, which probably activates the expression of callose synthase complex at the protein level. Callose degradation is controlled by β‐1,3‐glucanase, and its synthesis is rapid, although its degradation is slow.The brown planthopper (Nilaparvata lugens Stål; BPH) (Hemiptera: Delphacidae) is a typical vascular feeder, primarily sucking phloem sap through its piercing TI - Mechanisms of callose deposition in rice regulated by exogenous abscisic acid and its involvement in rice resistance to Nilaparvata lugens Stål (Hemiptera: Delphacidae) JF - Pest Management Science DO - 10.1002/ps.4655 DA - 2017-12-01 UR - https://www.deepdyve.com/lp/wiley/mechanisms-of-callose-deposition-in-rice-regulated-by-exogenous-jTzT670DuS SP - 2559 EP - 2568 VL - 73 IS - 12 DP - DeepDyve ER -