图3. 铬(Cr)胁迫下谷子叶片中差异表达基因(DEGs)的Gene Ontology (GO)富集分析。down, 下调; up, 上调。CK, 对照; Cr_6d, Cr胁迫6 d ; Cr_6h, Cr胁迫6 h。9-cis-epoxycarotenoid dioxygenase activity, 9-顺式-环氧类胡萝卜素双加氧酶活性; Alcohol group as acceptor, 醇基作为受体; Amylase activity, 淀粉酶活性; Amylopectin maltohydrolase activity, 支链淀粉麦芽糖水解酶活性; Anchored component of membrance, 膜的锚定成分; Anchored component of plasma membrane, 质膜的锚定成分; Apoplast, 质外体; Beta-amylase activity, β-淀粉酶活性; Catalytic activity, 催化活性; Cell redox homeostasis, 细胞氧化还原稳态; Cell wall organization or biogenesis, 细胞壁组织或生物发生; Cellular aromatic compound metabolic, 细胞芳香族化合物代谢; Chlorophy II binding, 叶绿素II结合; Chloroplast envelope, 叶绿体包膜; Chloroplast thylakoid membrance, 叶绿体类囊体膜; Cloroplast organization, 叶绿体组织; Containing compound metabolic process, 含复合代谢过程; Containing compound metabolic process, 含化合物代谢过程; Disulfide oxidoreductase activity, 二硫键氧化还原酶活性; DNA replication initiation, DNA复制起始; DNA replication, DNA复制; DNA-binding transcription factor activity, DNA结合转录因子活性; Electron transport chain, 电子传递链; Exoribonuclease complex, 外核糖核酸酶复合物; Exosome (RNase complex), 外泌体(核糖核酸酶复合物); Hetercycle metabolic process, 杂环代谢过程; Hydrogen peroxide catabolic process, 过氧化氢分解代谢过程; Hydrogen peroxide metabolic process, 过氧化氢代谢过程; Isoprenoid catabolic process, 类异戊二烯分解代谢过程; Jasmonic acid mediated signaling pathway, 茉莉酸介导的信号通路; Kinase activity, 激酶活性; Kinesin complex, 驱动蛋白复合物; Light harvesting in photosystem I, 光系统I光捕获; Magnesium-dependent protein serine, 镁依赖性蛋白丝氨酸; MCM complex, MCM复合物; Microtubule associated complex, 微管相关复合物; Microtubule, 微管; Microtubule-based movement, 基于微管的运动; Mitochondrial RNA metabolic process, 线粒体RNA代谢过程; Mitochondrial RNA modification, 线粒体RNA修饰; Movement of cell or subcellular component, 细胞或亚细胞成分的运动; mRNA modification, mRNA修饰; ncRNA metabolic processing, ncRNA代谢过程; ncRNA processing, ncRNA加工; Nuclear exosome (RNase complex), 核外泌体(核糖核酸酶复合体); Nucleolus, 核仁; Oxidoreductase activity acting on a sulfur group, 作用于硫的氧化还原酶活性; Oxidoreductase activity, 氧化还原酶活性; Phosphatase activity, 磷酸酶活性; Phosphoric ester hydrolase activity, 磷酸酯水解酶活性; Phosphorus metabolism process, 磷代谢过程; Phosphprylation, 磷酸化; Photosynthesis dark reaction, 光合作用暗反应; Photosynthesis light harvesting, 光合作用光捕获; Photosynthesis light reaction, 光合作用光反应; Photosynthesis, 光合作用; Photosynthetic membrane, 光合膜; Photosystem I, 光系统I; Photosystem II oxygen evolving complex, 光系统II氧演替复合物; Photosystem, 光系统; Photosythetic electron transport chain, 光合电子传递链; Plastic organization, 塑料组织; Plastid envelope, 质体包膜; Plastid processing, 质体加工; Plastid thylakoid membrance, 质体类囊体膜; Polymeric cytoskeletal fiber, 聚合细胞骨架纤维; Pre-replicative complex assembly in cell, 细胞内复制前复合物组装; Pre-replicative complex assembly, 复制前复合物组装; Preribosome, nucleolus, 前核糖体; Protein disulfide oxidoreductase activity, 蛋白质二硫键氧化还原酶活性; Protein kinase activity, 蛋白激酶活性; Protein serine/threonine kinase activity, 蛋白丝氨酸/苏氨酸激酶活性; Protein-chromophore linkage, 蛋白质-发色团键; Protein-chromophore linkage, 蛋白质-发色团连接; Reactive oxygen species metabolic process, 活性氧代谢过程; Reductive pentose-phosphate cycle, 还原性戊糖-磷酸循环; Regulation of defense response, 防御反应的调节; Response to abiotic stimulus, 对非生物刺激的反应; Response to heat, 对热的反应; Response to radiation, 对刺激的反应; Response to wounding, 对创伤的反应; RNA modification, RNA修饰; RNA processing, RNA加工; RNA surveillance, RNA监测; rRNA metabolic processing, rRNA代谢加工; rRNA modification, rRNA修饰; rRNA processing, rRNA加工; Sesquiterpenoid biosynthetic process, 倍半萜类生物合成过程; Sesquiterpenoid metabolic process, 倍半萜类代谢过程; SnoRNA 3?-end processing, snoRNA 3?端加工; snoRNA processing, snoRNA加工; snRNA metabolic process, snRNA代谢过程; Supramolecular fiber, 超分子纤维; Supramolecular polymer, 超分子聚合物; Thylakoid membrane, 类囊体膜; Transcription regulator activity, 转录调节活性; Transferase activity, 转移酶活性; U4 snRNA 3?-end processing, U4 snRNA 3?端加工; UDP-glycosyltransferase activity, UDP-糖基转移酶活性。p_a, 矫正的p值。

Fig. 3. Gene Ontology (GO) enrichment analysis of differentially expressed genes (DEGs) in chromium (Cr) stressed Setaria italica leaves. p_a, the adjusted p value. CK, control; Cr_6d, Cr stress for 6 d; Cr_6h, Cr stress for 6 h.