Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g31040	Promotes K(+)/H(+) antiport activity supporting K(+) efflux to control H(+) homeostasis in chloroplasts.	DAY-LENGTH-DEPENDENT DELAYED-GREENING1, the Arabidopsis Homolog of the Cyanobacterial H+-Extrusion Protein, Is Essential for Chloroplast pH Regulation and Optimization of Non-Photochemical Quenching.; 2019; DOI: 10.1093/pcp/pcz203; PMID: 31665522; https://pubmed.ncbi.nlm.nih.gov/31665522/ | Arabidopsis mutants lacking DLDG1 and non-photochemical quenching-related proteins reveal the regulatory role of DLDG1 in chloroplast pH homeostasis.; 2023; DOI: 10.1002/1873-3468.14687; PMID: 37339934; https://pubmed.ncbi.nlm.nih.gov/37339934/