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Table 1 Effects of live bacterium P. fulva SB1 (No. 11) on the individual PQ contents in PDA plates and submerged cultures of Shiraia sp. S9

From: Inducing perylenequinone production from a bambusicolous fungus Shiraia sp. S9 through co-culture with a fruiting body-associated bacterium Pseudomonas fulva SB1

Cultural method HA HC EA EB EC
Individual PQ contents in PDA plate (mg/cm2)
 Control 2.96 ± 0.14 0.31 ± 0.01 0.49 ± 0.01 0.18 ± 0.01 ND
 Co-culture 6.18 ± 0.05** 1.32 ± 0.12** 1.08 ± 0.02* 0.44 ± 0.01* 0.19 ± 0.02**
Intracellular PQs in submerged culture (mg/g DW)
 Control 5.33 ± 0.54 1.88 ± 0.13 1.07 ± 0.02 0.26 ± 0.01 0.31 ± 0.01
 Co-culture 8.55 ± 1.14** 3.06 ± 0.06* 2.08 ± 0.04* 3.14 ± 0.10** 3.21 ± 0.26**
Extracellular PQs in cultural culture (mg/L)
 Control 1.03 ± 0.01 0.71 ± 0.11 0.28 ± 0.03 ND ND
 Co-culture 1.64 ± 0.13* 1.09 ± 0.17* 0.48 ± 0.02* 0.29 ± 0.01** 0.14 ± 0.01*
  1. The procedure of fungal–bacterial confrontation assay and co-culture was the same as specified in Figs. 1 and 2, respectively. Values are mean ± SD from three independent experiments
  2. ND Not detected
  3. * p < 0.05, ** p < 0.01 versus control group