Table 1.

Classification and general features of Porphyrobacter neustonensis DSM 9434 according to the MIGS recommendations [22]

MIGS ID	Property	Term	Evidence codea
	Classification	Domain Bacteria	TAS [23]
		Phylum Proteobacteria	TAS [24]
		Class Alphaproteobacteria	TAS [25, 26]
		Order Sphingomonadales	TAS [25, 27]
		Family Erythrobacteraceae	TAS [28]
		Genus Porphyrobacter	TAS [7]
		Species Porphyrobacter neustonensis	TAS [7]
		Type strain DSM 9434
	Gram stain	Negative	IDA
	Cell shape	Rod or cocci	IDA
	Motility	Motile	IDA
	Sporulation	Non-sporulation	IDA
	Temperature range	10–37 °C	TAS [7]
	Optimum temperature	Not reported
	pH range; Optimum	Not reported
	Carbon source	Organic carbon	TAS [7]
MIGS-6	Habitat	Freshwater	TAS [7]
MIGS-6.3	Salinity	Not reported
MIGS-22	Oxygen requirement	Strictly aerobic	TAS [7]
MIGS-15	Biotic relationship	free-living	TAS [7]
MIGS-14	Pathogenicity	Non-pathogen	NAS
MIGS-4	Geographic location	University of Queensland, Australia	TAS [7]
MIGS-5	Sample collection	Not reported
MIGS-4.1	Latitude	Not reported
MIGS-4.2	Longitude	Not reported
MIGS-4.4	Altitude	Sea level	NAS

^aEvidence codes - IDA Inferred from Direct Assay, TAS Traceable Author Statement (i.e., a direct report exists in the literature), NAS Non-traceable Author Statement (i.e., not directly observed for the living, isolated sample, but based on a generally accepted property for the species, or anecdotal evidence). These evidence codes are from the Gene Ontology project