分子伴侣是一类与其他蛋白互作，帮助其他蛋白折叠和组装形成有天然功能的蛋白，其自身不是功能蛋白的结构组成的蛋白。微生物和人类中的研究，揭示它有多方面的重要重要作用。它虽广泛存在于植物中，但对其的功能研究仅有一些零星的报告。本研究利用实验室已有的分子伴侣（Cpn60）突变体和超表达等材料，研究Cpn 60突变株系光合碳同化参数，如羧化效率和最大羧化速率；Cpn 60与核酮糖1，5二磷酸羧化酶/加氧酶活化酶及核酮糖1，5二磷酸羧化酶/加氧酶互作关系, Cpn60在水稻抗逆性中调节碳同化的作用, Cpn60与RCA不同表达水平对两者互作影响；这对阐明Cpn60调节光合碳同化机制，挖掘植物基因资源，培育新种质具重要意义。

Molecular chaperone is any protein that interacts with and aids in the folding or assembly of another protein without being part of its final structure. It has been known that play very important role in maintenance of proteome integrity and protein homeostasis in microbe and human. Their functions are little recognized in plant although they exist extensively in plant kingdom. The special materials developed in our laboratory are used to study the parameters of photosynthetic carbon assimilation, such as, carboxylation efficieny and maximum carboxylation rate, the interaction among Cpn 60, ribulose-1,5-bisphosphatecarboxylase/oxygenase (Rubisco) activase (RCA) and Rubisco. The researches also involves into the function in stress resistance of the different lines and the quantitive relationship between Cpn 60 subunit and RCA. Our aim is to uncover the regulation mechanism of Cpn 60 to photosynthetic carbon assimilation, to dig plant gene source and develop new germplasm.