Interactions among filamentous fungi Aspergillus niger, Fusarium verticillioides and Clonostachys rosea: fungal biomass, diversity of secreted metabolites and fumonisin production

Table 4 Suppression of secreted metabolites in dual cultures of Aspergillus niger (A.n.), Fusarium verticillioides (F.v.), and Clonostachys rosea (C.r.). Suppressed metabolites were defined as metabolites with normalized signal intensities in dual cultures at least 10-times lower as compared to single cultures. Metabolites transformed or catabolized by interacting species were not included

Producer	Competitor	Number of suppressed metabolites^a
		Day 10		Day 20		Day 30
		-ve^b	+ve^b	-ve^b	+ve^b	-ve^b	+ve^b
A.n.	F.v.	6	7	7	15	9	28
	C.r.	2	0	2	1	5	11
	F.v. & C.r.^c	2	0	1	1	2	8
F.v.	A.n.	31	56	17	47	13	39
	C.r.	20	34	13	20	13	35
	A.n. & C.r.^c	18	21	8	13	8	19
C.r.	A.n.	28	31	32	68	36	103
	F.v.	23	19	25	42	24	36
	A.n. & F.v.^c	21	16	22	37	23	26

^aCriteria: minimum intensity for negative ionization 75,000 cpm, for positive ionization 500,000 cpm; MCQ 0.9; relative standard deviation among replicates < 1; change fold-factor < 0.1
^bNegative and positive ionization modes are indicated by -ve and +ve, respectively
^cNumber of metabolites suppressed by both competitors

ISSN: 1471-2180