Table 3.

Concentration of 2,4-diacetylphloroglucinol (2,4-DAPG), pyoluteorin (PLT), and pyrrolnitrin (PRN) produced in co-cultures of P. protegens (strain DSMZ 13134) and one genotype of different Heterobasidion species. Co-cultures were grown in King B broth at 4 °C, 25 °C, and 30 °C, and incubating them for 7 days.

Co-Cultures of P. protegens (Strain DSMZ 13134) and Heterobasidion spp.		Mean Concentration ± SD 1 (mg/L)
Incubation Temperature (°C)	Heterobasidion Species	2,4-DAPG	PLT	PRN
4	H. abietinum	<LOQ 2	8.05 ± 0.01	<LOD 3
	H. annosum	<LOQ	9.14 ± 0.01	<LOD
	H. irregulare	<LOQ	9.90 ± 0.02	<LOD
	H. parviporum	<LOQ	8.28 ± 0.15	<LOD
25	H. abietinum	<LOQ	2.52 ± 0.02	<LOD
	H. annosum	<LOQ	0.84 ± 0.00	<LOD
	H. irregulare	<LOQ	3.31 ± 0.13	<LOD
	H. parviporum	<LOQ	<LOQ	<LOD
30	H. abietinum	<LOQ	<LOD	<LOD
	H. annosum	<LOQ	0.16 ± 0.18	<LOD
	H. irregulare	<LOQ	0.07 ± 0.12	<LOD
	H. parviporum	<LOQ	0.51 ± 0.30	<LOD

¹ The values represent the mean and standard error of the mean for three replicates, each represents one co-culture of P. protegens (strain DSMZ 13134) and Heterobasidion spp. Values were rounded to two significant digits. ² <LOQ means under the limit of quantification, with quantification limit being approximately 0.5 mg/L for each compound. ³ <LOD means under the limit of detection, with detection limit being approximately 0.1 mg/L for each compound.