物种	参考基因 ID	可能功能	对应论文 / DOI
拟南芥	At2g26660	可能以 Pi 依赖方式抑制 PHR1 的 DNA 结合活性。	SPX1 is a phosphate-dependent inhibitor of Phosphate Starvation Response 1 in Arabidopsis.; 2014; DOI: 10.1073/pnas.1404654111; PMID: 25271326; https://pubmed.ncbi.nlm.nih.gov/25271326/
拟南芥	At5g20150	在植物适应磷酸盐饥饿方面发挥积极作用。	Characterization of a sub-family of Arabidopsis genes with the SPX domain reveals their diverse functions in plant tolerance to phosphorus starvation.; 2008; DOI: 10.1111/j.1365-313x.2008.03460.x; PMID: 18315545; https://pubmed.ncbi.nlm.nih.gov/18315545/ | SPX1 is a phosphate-dependent inhibitor of Phosphate Starvation Response 1 in Arabidopsis.; 2014; DOI: 10.1073/pnas.1404654111; PMID: 25271326; https://pubmed.ncbi.nlm.nih.gov/25271326/
水稻	UniProt: B8B4D0	参与植物对磷酸盐 (Pi) 缺乏的适应（通过相似性）。	暂无已核实直接文献
水稻	Os06g0603600	参与植物对磷酸盐 饥饿的适应。	Involvement of OsSPX1 in phosphate homeostasis in rice.; 2009; DOI: 10.1111/j.1365-313x.2008.03734.x; PMID: 19000161; https://pubmed.ncbi.nlm.nih.gov/19000161/ | Regulation of OsSPX1 and OsSPX3 on expression of OsSPX domain genes and Pi-starvation signaling in rice.; 2009; DOI: 10.1111/j.1744-7909.2009.00834.x; PMID: 19566645; https://pubmed.ncbi.nlm.nih.gov/19566645/ | OsSPX1 suppresses the function of OsPHR2 in the regulation of expression of OsPT2 and phosphate homeostasis in shoots of rice.; 2010; DOI: 10.1111/j.1365-313x.2010.04170.x; PMID: 20149131; https://pubmed.ncbi.nlm.nih.gov/20149131/ | Rice SPX1 and SPX2 inhibit phosphate starvation responses through interacting with PHR2 in a phosphate-dependent manner.; 2014; DOI: 10.1073/pnas.1404680111; PMID: 25271318; https://pubmed.ncbi.nlm.nih.gov/25271318/ | An SPX-RLI1 Module Regulates Leaf Inclination in Response to Phosphate Availability in Rice.; 2018; DOI: 10.1105/tpc.17.00738; PMID: 29610209; https://pubmed.ncbi.nlm.nih.gov/29610209/
水稻	UniProt: A2X254	通过磷酸盐（Pi）依赖的蛋白相互作用抑制PHR2的DNA结合活性（通过相似性推测）。	暂无已核实直接文献