Non-Volatile Metabolites from Trichoderma spp.

Li, Mengfei; Li, Guohong; Zhang, Ke‐Qin

doi:10.3390/metabo9030058

Cited by 93 publications

(89 citation statements)

References 56 publications

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“…The most important chemical classes reported in Trichoderma are anthraquinones, peptaibols, polyketides, pyrones, terpenes and diketopiperazine-like secondary metabolites [36][37][38]. Sterol compounds such as ergosterol, lanosterol and pyrocalciferol were detected for the first time in the fermentation of a T. pseudokoningii strain [37].…”

Section: Discussionmentioning

confidence: 98%

“…The production of effector molecules and secondary metabolites by Trichoderma spp. contributes to their beneficial biological activities [35], making this genus a valuable source of a wide variety of secondary metabolites [36]. In this work, a triglyceride mixture with 1-oleoyl-2-linoleoyl-3-palmitoylglycerol [23,24] being the main component (mixture 1), and four known sterols-eburicol (2) [25], β-sitostenone (3) [26], ergosterol (4) [25] and ergosterol peroxide (5) [27]-have been isolated from the neutral hexane extract of the Trichoderma endophyte EFI671.…”

Section: Discussionmentioning

confidence: 99%

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Chemical Composition of an Aphid Antifeedant Extract from an Endophytic Fungus, Trichoderma sp. EFI671

et al. 2020

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Botanical and fungal biopesticides, including endophytes, are in high demand given the current restrictive legislations on the use of chemical pesticides. As part of an ongoing search for new biopesticides, a series of fungal endophytes have been isolated from selected medicinal plants including Lauraceae species. In the current study, an extract from the endophytic fungus Trichoderma sp. EFI 671, isolated from the stem parts of the medicinal plant Laurus sp., was screened for bioactivity against plant pathogens (Fusarium graminearum, Rhizoctonia solani, Sclerotinia sclerotiorum and Botrytis cinerea), insect pests (Spodoptera littoralis, Myzus persicae, Rhopalosiphum padi) and plant parasites (Meloidogyne javanica), with positive results against M. persicae. The chemical study of the neutral fraction of the active hexane extract resulted in the isolation of a triglyceride mixture (m1), eburicol (2), β-sitostenone (3), ergosterol (4) and ergosterol peroxide (5). The free fatty acids present in the acid fraction of the extract and in m1 (oleic, linoleic, palmitic and stearic) showed strong dose-dependent antifeedant effects against M. persicae. Liquid (potato dextrose broth, PDB and Sabouraud Broth, SDB) and solid (corn, sorghum, pearl millet and rice) growth media were tested in order to optimize the yield and bioactivity of the fungal extracts. Pearl millet and corn gave the highest extract yields. All the extracts from these solid media had strong effects against M. persicae, with sorghum being the most active. Corn media increased the methyl linoleate content of the extract, pearl millet media increased the oleic acid and sorghum media increased the oleic and linoleic acids compared to rice. The antifeedant effects of these extracts correlated with their content in methyl linoleate and linoleic acid. The phytotoxic effects of these extracts against ryegrass, Lolium perenne, and lettuce, Lactuca sativa, varied with culture media, with sorghum being non- toxic.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Chemical Composition of an Aphid Antifeedant Extract from an Endophytic Fungus, Trichoderma sp. EFI671

et al. 2020

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“…Besides that, Bansal and Mukherjee (2016) stated that Trichoderma spp.are the rich source of secondary metabolites with a variety of biological activities. According to Li et al (2019), the secondary metabolites per Trichoderma species elaborate on approximately 390 non-volatile compounds from 20 known species and various unidentified species.…”

Section: Incubation Periodmentioning

confidence: 99%

Application of Bio P60 and Bio T10 Alone or in Combination Against Stem Rot of Pakcoy

2019

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Application of Bio P60 and Bio T10 alone or in combination in suppressing stem rot of pakcoy and on pakcoy growth has been demonstrated. The research was carried out at the Plant Protection Laboratory and Screen House, Faculty of Agriculture, Jenderal Soedirman University. A split-plot design was used with application time (before and after inoculation of Sclerotium rolfsii) as main plot and Bio P60, Bio T10, and Bio P60 + Bio T10) as sub-plot. Observed variables were incubation period, disease intensity, crop height, number of leaves, and crop fresh weight. Results of the research showed that single and combined application of Bio T10 and Bio P60 did not differ in the suppression of stem-end rot in pakcoy. The combination of Bio T10 + Bio P60 was able to control the disease by delaying the incubation period and suppressing the disease intensity respectively by 37.48-39.16% and 54.77-6191% compared to controls. Combined Bio T10 + Bio P60 was able to improve plant height, number of leaves, and fresh weight of plants as 29.99-46.62, 24.39-35.07, and 71,17%, respectively, compared to controls. The results of this study suggest that the raw secondary metabolites of Bio P60 and Bio T10 either alone or in combination could be applied for the prevention or treatment of the diseases in pakcoy.

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“…The most important chemical classes reported in Trichoderma are anthraquinones, peptaibols, polyketides, pyrones, terpenes and diketopiperazine-like secondary metabolites [36][37][38]. Sterol compounds as ergosterol, lanosterol and pyrocalciferol were detected for the first time in the fermentation of a T. pseudokoningii strain [37].…”

Section: Growthmentioning

confidence: 99%

“…The production of effector molecules and secondary metabolites by Trichoderma contributes to their beneficial biological activities [35], being this genus a valuable source of a wide variety of secondary metabolites [36]. In this work, five compounds have been isolated from the neutral hexane extract of the Trichoderma endophyte EFI671: the triglyceride 1, previously isolated from the mycelium of Grifola frondosa [23] and reported as a synthetic product [24], and four known sterols, eburicol (2) [26], β-sitostenone (3) [25], ergosterol (4) [26] and ergosterol peroxide (5) [27].…”

Section: Growthmentioning

confidence: 99%

Aphid Antifeedant Fatty Acids from an Endophytic Fungus <em>Trichoderma</em> sp. EFI671

Kaushik¹,

Díaz²,

Chhipa³

et al. 2019

Preprint

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In the current study, an ethyl acetate extract from the endophytic fungus Trichoderma sp. EFI 671, isolated from the stem parts of the medicinal plant Laurus sp. was screened for bioactivity against plant pathogens (Fusarium graminearum, Rhizoctonia solani, Sclerotinia sclerotiorum and Botrytis cinerea), insect pests (Spodoptera littoralis, Myzus persicae, Rhopalosiphum padi) and plant parasites (Meloidogyne javanica). The chemical study of this insect antifeedant extract resulted in the isolation of 1-oleoyl-2-linoleoyl-3-palmitoylglycerol (1), eburicol (2), β-sitostenone (3), ergosterol (4) and ergosterol peroxide (5). The free fatty acids present in compound 1 (oleic, linoleic and palmitic) showed strong dose-dependent aphid antifeedant effects against M. persicae. Liquid (PDB, and SDB) and solid (corn, sorghum, pearl millet and rice) growth media were tested in order to optimize the yield and bioactivity of the fungal extracts. Pearl millet and corn gave the highest extract yields. All the extracts from these solid media had strong effects against M. persicae with sorghum being the most active. Corn increased the content in linolenic, pearl millet the oleic and stearic and sorghum oleic and linolenic acids compared to rice. Their antifeedant effects correlated with linoleic /oleic acids. The phytotoxic effects of these extracts against Lolium perenne and Lactuca sativa varied with culture media, with sorghum being the least toxic.

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Non-Volatile Metabolites from Trichoderma spp.

Cited by 93 publications

References 56 publications

Chemical Composition of an Aphid Antifeedant Extract from an Endophytic Fungus, Trichoderma sp. EFI671

Chemical Composition of an Aphid Antifeedant Extract from an Endophytic Fungus, Trichoderma sp. EFI671

Application of Bio P60 and Bio T10 Alone or in Combination Against Stem Rot of Pakcoy

Aphid Antifeedant Fatty Acids from an Endophytic Fungus <em>Trichoderma</em> sp. EFI671

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