Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g54130	Possesses ppGpp (guanosine 3'-diphosphate 5'-diphosphate) synthetase activity in vitro and is able to functionally complement E.coli relA mutants.	Expression profiling of four RelA/SpoT-like proteins, homologues of bacterial stringent factors, in Arabidopsis thaliana.; 2008; DOI: 10.1007/s00425-008-0758-5; PMID: 18535838; https://pubmed.ncbi.nlm.nih.gov/18535838/
Arabidopsis	UniProt: Q9M5P5	Probable ppGpp (guanosine 3'-diphosphate 5'-diphosphate) synthetase that may be involved in a rapid plant ppGpp-mediated response to pathogens and other stresses.	No verified direct reference in this release
Arabidopsis	At3g14050	Possesses ppGpp (guanosine 3'-diphosphate 5'-diphosphate) synthetase activity in vitro and is able to functionally complement E.coli relA mutants.	Expression profiling of four RelA/SpoT-like proteins, homologues of bacterial stringent factors, in Arabidopsis thaliana.; 2008; DOI: 10.1007/s00425-008-0758-5; PMID: 18535838; https://pubmed.ncbi.nlm.nih.gov/18535838/
Arabidopsis	UniProt: Q9M5P6	Probable ppGpp (guanosine 3'-diphosphate 5'-diphosphate) synthetase that may be involved in a rapid plant ppGpp-mediated response to pathogens and other stresses.	No verified direct reference in this release
Rice	Os08g0457600	Probable ppGpp (guanosine 3'-diphosphate 5'-diphosphate) synthetase that may be involved in a rapid plant ppGpp-mediated response to pathogens and other stresses.	No verified direct reference in this release