. 2016 Sep 1;11(9):e0162197. doi: 10.1371/journal.pone.0162197

Table 1. Mean concentrations (ng mm^-2) of detected headspace volatiles from four-day old cultures of mountain pine beetle (Dendroctonus ponderosae)-symbiotic fungi: Grosmannia clavigera, Ophiostoma montium, and Leptographium longiclavatum.

ANOVA results for among-species differences in mean concentrations for each compound. Means with different letter superscripts are significantly different as indicated by Tukey Honest Significant Difference tests. Compounds not detected in headspace collections of a given fungus are indicated with “ND.”

	Mean (±s.e.) concentration (ng mm^-2)			ANOVA
Compound	G. clavigera	O. montium	L. longiclavatum	F_{2, 42}	p-value
Acetoin	0.91 (±0.15)^a	5.87 (±1.17)^b	0.54 (±0.07)^c	53.31	<0.001
Isobutanol	8.64 (±0.58)^a	4.80 (±0.33)^b	5.44 (±0.29)^b	10.21	<0.001
2-methyl-1-butanol	40.41 (±4.26)^a	0.07 (±3.23)^b	33.69 (±3.23)^a	8.59	<0.001
3-methyl-1-butanol	103.22 (±7.81)^a	139.27 (±8.53)^b	91.09 (±4.17)^a	10.43	<0.001
Phenethyl alcohol	1.53 (±0.26)^a	2.70 (±0.61)^b	1.55 (±0.22)^ab	12.47	0.043
cis-grandisol	10.59(±0.31)	ND	ND	-	-
Ethyl acetate	ND	ND	9.46 (±0.74)	-	-
Isoamyl acetate	ND	ND	0.45 (±0.05)	-	-
Phenethyl acetate	ND	ND	0.52 (±0.09)	-	-

Table 1. Mean concentrations (ng mm-2) of detected headspace volatiles from four-day old cultures of mountain pine beetle (Dendroctonus ponderosae)-symbiotic fungi: Grosmannia clavigera, Ophiostoma montium, and Leptographium longiclavatum.

Table 1. Mean concentrations (ng mm^-2) of detected headspace volatiles from four-day old cultures of mountain pine beetle (Dendroctonus ponderosae)-symbiotic fungi: Grosmannia clavigera, Ophiostoma montium, and Leptographium longiclavatum.