本课题在“SJ-10”返回式卫星飞行实验和后续研究的基础上，围绕研究植物支撑系统——植物细胞壁适应微重力环境的机制，在全基因组DNA甲基化和转录组水平上，联合分析挖掘与微重力刺激信号转导通路、调控植物细胞壁代谢、细胞壁组成成分代谢相关的关键基因。用它们的功能缺失突变体和过表达转基因植物分析验证它们在植物适应微重力环境中的作用。通过分析活体返回地面拟南芥后代的表型，确定微重力效应的隔代记忆现象。进一步从表观遗传修饰的角度探讨这种表观遗传记忆背后的分子基础。综合上述研究，进一步认识微重力环境影响植物生长发育的机理。为未来空间植物栽培奠定理论基础。

Based on the flight experiment of "SJ-10" recoverable satellite and follow-up studies, we will focus on the mechanism of plant cell wall adaptation to microgravity. At the levels of whole-genome DNA methylation and transcriptome researches, the key genes in microgravity stimulation signaling pathways, regulation of cell wall metabolism and metabolism of cell wall composition will be identified through data joint analysis and mining. The function of these genes will be evaluated by using loss-of-function mutants and over-expression Arabidopsis in order to understand their role in plant adaptation to microgravity conditions. The transgenerational memories of plant microgravity effects were determined by analyzing the phenotype of Arabidopsis which returned to the ground alive. Their molecular mechanism of epigenetic modification will be explained. These researches will help us to understand the mechanism of the effects of microgravity on plant growth and development and provide theoretical basis for future space plant cultivation.