TABLE 1.

Description of isolated fungi, including isolation source, geochemistry of the site, and fungal taxonomy based on SSU rRNA genes

Closest BLAST class (phylum), genus match	Accession no.	% identity	Isolate(s)	Sampling wella	pH	% abundance from wells with pH ofb:		Denitrification potential (nmol N2O-N liter−1 day−1)
						<4.5	>4.5
Eurotiomycetes (Ascomycota)
Penicillium sp. strain BCC 17468	GU809208	99	ORNL9	FW106	3.46	0.01		9,852.64
			ORNL15	FW025	5.14
			ORNL10	FW116	5.51
			ORNL21	FW410	3.30
			ORNL19	FW115	3.20
Aspergillus fumigatus DAOM 215394	JN938984	99	ORNL2	FW116	5.51	0.02	0.002	7.50
Sordariomycetes (Ascomycota)
Coniochaeta velutinac	GQ154626	100	ORNL3,d ORNL4, ORNL8	FW106	3.46		18.5	119.24
			ORNL5	FW126	3.57
Fusarium oxysporum ZW-21	JQ926985	99	ORNL7	FWB124	5.14		0.01	523.59
Pochonia suchlasporia	AB214658	99	ORNL11	PTMW02	4.70
Apiospora montagnei	AB220230	99	ORNL17	FWB129	3.89	0.30		83.08
Paecilomyces lilacinus CBS 284.36	AY526475	99	ORNL16	FWB129	4.15		0.01	397.44
Neolinocarpon globosicarpum	DQ810258	100	ORNL6	FW025	5.14			19.36
Leotiomycetes (Ascomycota)
Teberdinia hygrophilac	JQ780647	99	ORNL1,d ORNL12	FW126	3.57	0.01		256.08
Sclerotinia sclerotiorum	AY187065	98	ORNL20	FW410	3.30
Phialocephala repens MUCL1849	EU434874	99	ORNL18	FWB129	3.90		0.01	8.47
Collophora capensis	GQ154631	98	ORNL13	FW106	3.46
Microbotryomycetes (Basidiomycota), Rhodosporidium toruloides	DQ647614	99	ORNL14	FW106	3.46		11.5

^aFW and PTMW are OR-IFRC groundwater sources, and FWB is an OR-IFRC sediment source.

^bPercent abundance of the genus in the pyrosequencing library.

^cMultiple isolates were recovered.

^dIsolate tested for denitrification potential.