摘要
Leaf color mutants are ideal materials for studying physiological processes in plants.Here,a thermos-sensitive leaf-color mutant of Green wandering jew was isolated after carbon ions irradiation,which was designated as mt.The color of young mutant leaves was more sensitive to variations of temperature,however,the young leaves of wild type remained green under low-temperature conditions(6℃-20℃).To elucidate the characteristics of pigmentation in mutant leaves under room temperature conditions(25℃)and low-temperature conditions(7℃),the ultra-structural,pigment composition,molecular mechanisms and anthocyanin accumulation involved in this phenomenon have been investigated in four independent experiments.