Abstract: High temperature is one of the important ecological factors limiting the growth and development of cool-season turfgrass, especially during hot summer in transitional and warm climatic areas. Fortunately, this type of turfgrass exhibits some physiological and ecological adaptation mechanisms, e.g., the change of membrane lipid component, elimination of active oxidative species (AOS) by antioxidant systems, and accumulation of heat shock protein (HSP), for acquiring heat tolerance to protect itself against the damage by heat stress. Based on our several years researches and the literatures published at home and abroad about cool-season turfgrass under heat stress, this paper summarized and discussed the physiologicalecological adaptation mechanisms of cool-season turfgrass under high temperature stress, which could be helpful to provide academic and practical evidences in improving the thermo-tolerance of cool-season turfgrass.

Key words: Benzo(a)pyrene, Boleophthalmus pectinirostris, Antioxidant enzymes, SOD, GPx, CAT