Existence of Muscodor vitigenus, M. equiseti and M. heveae sp. nov. in leaves of the rubber tree (Hevea brasiliensis Müll.Arg.), and their biocontrol potential

Siri-udom, Sakuntala; Suwannarach, Nakarin; Lumyong, Saisamorn

doi:10.1007/s13213-015-1126-x

Table 3 Composition of the volatile metabolites produced by Muscodor spp. as determined via GC/MS

From: Existence of Muscodor vitigenus, M. equiseti and M. heveae sp. nov. in leaves of the rubber tree (Hevea brasiliensis Müll.Arg.), and their biocontrol potential

Retention time (min)	Possible compound	Molecular formula	M/z	% Total area
Retention time (min)	Possible compound	Molecular formula	M/z	Blank	MH^a	MA^b	MC^c	MM^d	MO^d
5.41	cyclopentane	C₅H₁₀	7.69	0	0	0	7.69	0	0
5.56	ethyl acetate	C₄H₈O₂	88	0	0	7.63	0	0	0
5.60	2-methylpropan-1-ol	C₄H₁₀O	74	0	0.76/86*	0	0	0	0
6.03	3-methylbutyl acetate	C₇H₁₄O₂	130	0	6.92/90*	0	0	0	0
6.38	methyl 2-methylbutanoate	C₆H₁₂O₂	116	0	0	0	14.90	0	0
6.51	methyl propanoate	C₄H₈O₂	102	0	0	0.31	0	0	0
7.07	2-methylpropan-1-ol	C₄H₁₀O	74	0	0	0	0	0	3.48
7.16	ethanol	C₄H₆O	ND	0	0	6.24	0	0	0
7.77	3-methylbutanoyl acetate	ND	130	0	0	0	0	20.41	4.70
8.03	ethyl 2-methylpropanoate	C₆H₁₂O₂	116	0	0	2.07	0	0	0
8.29	3-methylbutan-1-ol	C₅H₁₂O	88	0	11.26/83*	0	3.12	0	0
10.32	2-methylbutyl 2-methylpropanoate	C₉H₁₈O₂	158	0	0	0	0	0.21	0
10.88	3-methylbutan-1-ol	C₅H₁₂O	88	0	0	0	0	13.34	32.69
11.45	2-methylpropyl 2-methylpropanoate	C₈H₁₆O₂	ND	0	0	0.58	0	0	0
12.05	2-methylpropan-1-ol	C₄H₁₀O	74	0	0	2.06	0	0	0
12.10	3-methyl-3-buten-1-ol	C₅H₁₀O	86	0	0	0	0	0	0.27
12.20	ethyl 2-hydroxy-2-methylpropanoate	C₆H₁₂O₃	132	0	0	0	0	0	0.88
12.50	3-methylbutyl acetate	C₇H₁₄O₂	ND	0	0	22.24	0	0	0
12.66	1,1,3,3,5,5,7,7,9,9,11,11-dodecamethyl-2,4,6,8,10,12-hexaoxa-1,3,5,7,9,11-hexasilacyclododecane	C₁₂H₃₆O₆Si₆	445	0.67/91*	0	0	0	0	0
12.97	3-hydroxybutan-2-one	C₄H₈O₂	88	0	0	0	0	0.59	2.00
14.57	3-methylbutyl 2-methylpropanoate	C₉H₁₈O₂	ND	0	0	1.53	0	0	0
15.28	3-methylbutan-1-ol	C₅H₁₂O	88	0	0	22.99	0	0	0
15.88	benzaldehyde	C₇H₆O	106	4.61/96*	0	0	0	0	0
16.08	2-pentylfuran	C₉H₁₄O	138	0	0	0.29	0	0	0
16.19	2,4-dimethyl-1-heptene	C₉H₁₈	126	0	0	0	0	0	0.13
16.31	1-isobutoxy-2-ethylhexane	C₁₂H₂₆O	186	0	0	0	0	0	0.31
17.13	2-methylpropanoic acid	C₄H₈O₂	88	0	4.73/91*	0	0	0	0
19.04	(1R,4E,9S)-4,11,11-trimethyl-8-methylidenebicyclo[7.2.0] undec-4-ene	C₁₅H₂₄	204	0	0.41/93*	0	0	0	0
19.43	isopropyl-4-piperidone	C₈H₁₅NO	141	0	0	0	0	0.23	0
19.50	4,5-dimethyl-1,3-cyclopentanedione	C₇H₁₀O₂	126	0	0	0	0	0	0.37
19.77	1,1,9-trimethyl-5-methylidenespiro[5.5]undec-9-ene	C₁₅H₂₄	204	0	0.51/95*	0	0	0	0
20.38	nonan-2-one	C₉H₁₈O	142	0	0	0.41	0	0	0
20.75	azulene,1,2,3,5,6,7,8,8α-octahydro-1,4-dimethyl-7-(1-methylethenyl)-, [1S (1.α.,7.α.,8α.β.)]-	C₁₅H₂₄	204	0	2.03/99*	0	0	0	0
21.03	2-methylpropanoic acid	C₄H₈O₂	88	0	0	0	0	33.17	15.41
21.07	8α-methyl-4-methylidene-6-propan-2-ylidene-2,3,4α,5,7,8-hexahydro-1H-naphthalene	C₁₅H₂₄	204	0	0	0.30	0	0	0
21.69	[1S-(1. α.,4. α.,7. α)]-1,2,3,4,5,6,7,8-octahydro-1,4-dimethyl-7-(1methylethenyl)-azulene	C₁₅H₂₄	204	0	0	0	0	0.29	0
21.81	(4Z)-4,11,11-trimethyl-8-methylidenebicyclo[7.2.0]undec-4-ene	C₁₅H₂₄	204	0	0	0	0	0	2.19
21.92	methyl (Z)-N-hydroxybenzenecarboximidate	C₈H₉NO₂	151	0	0.31/83*	0	0	0	0
22.54	azulene	C₁₀H₈	204	0	0	1.51	0	0	0
22.61	2-phenylethyl acetate	C₁₀H₁₂O₂	164	0	0.9/83*	0	0	0	0
23.16	1-methyl-4-[(2E)-6-methylhepta-2,5-dien-2-yl]cyclohexene	C₁₅H₂₄	204	0	0	0.94	0	0	0
23.76	2-methylbutanoic acid	C₁₅H₁₀O₂	102	0	0	0	0	1.10	0
24.72	2-phenylethanol	C₈H₁₀O	122	0	1.28/97*	0	0	0	0
24.75	azulene,1,2,3,5,6,7,8,8α-octahydro-1,4-dimethyl-7-(1-methylethenyl)-, [1S (1.α.,7.α.,8α.β.)]-	C₁₅H₂₄	204	0	0	0	0	1.01	0.44
25.20	1H-3α,7-methanoazulene, 2,3,4,7,8,8α-hexahydro-3,6,8,8 tetramethyl-,[1R-(1.α., 4α.α., 8α.α.)]	C₁₅H₂₄	204	0	0	3.63	0	0	0
25.30	2-methylpropanoic acid	C₄H₈O₂	88	0	0	6.08	0	0	0
25.72	3,7-dimethyl-1,6-octadiene	C₁₀H₁₈	138	0	0	0	0	0.05	0
26.04	(1R,4E,9S)-4,11,11-trimethyl-8-methylidenebicyclo[7.2.0]undec-4-ene	C₁₅H₂₄	204	0	0	0.48	0	0	0
26.45	phenol	C₆H₆O	94	1.80/95*	0	0	0	0	0
26.91	2-methyl-propanamide	C₄H₉NO	87	0	0	0	0	0.07	0
27.05	2-phenylethyl acetate	C₁₀H₁₂O₂	164	0	0	0	0	3.28	1.46
27.27	6-nitro-2-picoline	C₆H₆N₂O₂	138	0	0	0	0	0.12	0
27.42	(1E,5E)-1,4,4-trimethyl-8-methylidenecycloundeca-1,5-diene	C₁₅H₂₄	204	0	0	0	3.23	0	0
27.55	naphthalene,1,2,4α,5,6,8α-hexahydro-4,7-dimethyl-1-(1-methylethyl)-,[1R-(1.α., 4α.α., 8α.α.)]	C₁₅H₂₄	204	0	0	0.34	0	0	0
28.34	(R)-11-methylene-3,7,7-trimethylspiro[5.5]undec-2-ene	C₁₅H₂₄	204	0	0	0.36	0	0	0
28.50	azulene,1,2,3,5,6,7,8,8α-octahydro-1,4-dimethyl-7-(1-methylethenyl)-, [1S (1.α.,7.α.,8α.β.)]-	C₁₅H₂₄	204	0	0	1.07	0	0	0
28.57	(2R)-8,8,8α-trimethyl-2-prop-1-en-2-yl-1,2,3,4,6,7-hexahydronaphthalene	C₁₅H₂₄	204	0	0	3.24	0	0	0
30.18	azulene,1,2,3,5,6,7,8,8α-octahydro-1,4-dimethyl-7-(1-methylethenyl)-, [1S (1.α.,7.α.,8α.β.)]-	C₁₅H₂₄	204	0	3.30/95*	0	0	0	0
30.89	azulene,1,2,3,5,6,7,8,8α-octahydro-1,4-dimethyl-7-(1-methylethenyl)-, [1S (1.α.,7.α.,8α.β.)]-	C₁₅H₂₄	204	0	0	0	8.58	0	0
30.90	(3R,α S,α R)-α -methyl-5-methylidene-3-prop-1-en-2-yl-1,2,3,4,α ,6,7,8-octahydronaphthalene	C₁₅H₂₄	107	0	0	0	7.32	0	0
31.12	2-phenylethyl acetate	C₁₀H₁₂O₂	ND	0	0	1.74	0	0	0
31.72	2-(2-methyl-2-propenyl)-2-cyclohexane-1-one	ND	150	0	0	0	0	0.25	0
33.17	2-phenylethanol	C₈H₁₀O	122	0	0	1.06	0	0	0

The volatile metabolites produced by M. heveae (MH) and its closest phylogenetic species; M. albus cz620¹ (MA), M. cinnamomi (MC), M. musae (MM), and M. oryzae (MO) were identified by GC-MS. The results were reported with retention time (RT), possible compound (with IUPAC name), molecular formula, mass to charge ratio (M/z), % total area and % quality*. The data may be obtained from ^athis study or be taken from ^bStrobel (2011), ^cSuwannarach et al. (2010), and ^dSuwannarach et al. (2013a). The red highlight refers to the major composition in each profile of the volatile metabolites. Compounds presented in a control PDA plate are not included in this Table. The analysis for M. heveae was done in triplicate

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