A Pair of Novel Heptentriol Stereoisomers from the Ascomycete <i>Daldinia concentrica</i>

Wang, Fei; Liu, Ji‐Kai

doi:10.1002/hlca.200490193

Cited by 18 publications

(11 citation statements)

References 14 publications

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“…The HR-EI-MS together with the NMR data were used to determine the molecular formula of 3 to be C 15 H 22 O 4 , possessing four more hydrogen atoms than 2. Also, the 1 H-and 13 The anti-HIV activity of daldinins AϳC was tested with reported method [9], the results were negative.…”

Section: Resultsmentioning

confidence: 99%

Induced Daldinin A, B, C with a New Skeleton from Cultures of the Ascomycete Daldinia concentrica

et al. 2008

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Section: Resultsmentioning

confidence: 99%

Induced Daldinin A, B, C with a New Skeleton from Cultures of the Ascomycete Daldinia concentrica

et al. 2008

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“…65 Recently, Qin and Liu reported that two new aromatic steroids, (17β,20R,22E,24R)-19-norergosta-1,3,5,7,9,14,22-heptaene and (17β,20R,22E,24R)-1-methyl-19-norergosta-1,3,5,7,9,14,22-heptaene, 66 and new homologous series of 3-alkyl-5-methoxy-2-methyl-1,4-benzoquinones were isolated from the fruit bodies of Chinese D. concentrica, 67 as well as a pair of novel hept-6-ene-2,4,5-triol stereoisomers from its culture broth. 68 One more Asian species was investigated, and a new compound, (3,4,5-trimethoxyphenyl)ethanol, was found together with a known compound, caruilignan C, from the fruit bodies of Korean D. concentrica. Both compounds exhibited neuroprotective effect against iron-induced neurodegeneration in a primary culture of mouse cortical neurons.…”

Section: Biologically Active Compounds From Hypoxylon Spmentioning

confidence: 99%

Inedible mushrooms: a good source of biologically active substances

2006

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ABSTRACT:In the course of our investigation on biologically active substances from inedible mushrooms in Japan, Germany, and Vietnam, we studied the chemical constituents of 22 species belonging to five families: Scutigeraceae, Polyporaceae, Xylariaceae, Thelephoraceae, and Paxillaceae. Various types of chemical substances were purified and characterized based on the modern spectroscopic methods and also on chemical reactions. These metabolites have shown a broad activity in many biological systems, such as antimicrobial, nematicidal, inhibition of NO production, antihuman immunodeficiency virus, tumor necrosis factor-α, and antioxidant activities. These isolated metabolites did not only show interesting activities, but also are employed as chemical markers supported for chemosystematics of these families. This review paper deals with the chemical constituents of 22 species, their biological activities, and also a discussion on chemosystematics.

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“…Studies with Daldinia spp. have revealed more than 20 new bioactive metabolites, including derivatives of benzofenones (Hashimoto et al 1994a), azafilones, daldinins A-C (Hashimoto et al 1994b), cytochalasans (Buchanan et al 1995;1996a, b;Hashimoto and Asakawa 1998), triterpenoids, concentricols (Stadler et al 2001a;Quang et al 2002a, b), daldiniapyrone, daldinones (Quang et al 2002b), benzoquinones (Qin and Liu 2004a), esteroids (Qin and Liu 2004b), heptentriols (Wang and Liu 2004), diaporthins, orthosporins (Lee et al 2006), and concentricolides (Qin et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Daldinia eschscholtzii (Ascomycota, Xylariaceae) isolated from the Brazilian Amazon: taxonomic features and mycelial growth conditions

et al. 2013

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The Amazon has a high diversity of fungi, including species of the genus Daldinia (Ascomycota, Xylariaceae), which produce secondary metabolites with recognized nematicidal and antimicrobial activity. The ecological role of Daldinia is important, as stromata serve as refuges to many insects and arthropodes, and the fungi contribute to the degradation of vegetable organic matter. The aim of this study was to analyze the taxonomic features and mycelial growth conditions in vitro of a Daldinia specimen collected in the Brazilian Amazon. Morphological and molecular studies of the fungus identified it as D. eschscholtzii. To evaluate mycelial growth, we cultivated the fungus at 20, 25, 30, 35, and 40 ºC in malt extract-peptone agar (MEPA), malt extract-peptone (MEP), potato dextrose (PD), and minimum medium (MM). The best mycelial growth occurred at 35 ºC, although the greatest amount of biomass was obtained at 25 ºC and 30 ºC. PD proved to be the best medium for biomass production. KEYWORDS: Daldinia eschscholzii, fungal diversity, macrofungus, occurrence. Daldinia eschscholzii (Ascomycota, Xylariaceae) isolado na Amazônia brasileira: características taxonômicas e condições de crescimento micelial RESUMOA Amazônia apresenta alta diversidade de fungos, incluindo Daldinia (Ascomycota, Xylariaceae), cujas espécies produzem metabólitos secundários com reconhecida atividade antimicrobiana e nematicida. O papel ecológico é importante, visto que estromas servem de abrigo para muitos insetos e artrópodes, além de contribuir na degradação da matéria orgânica vegetal. O objetivo desse estudo foi analizar as características taxonômicas e as condições do crescimento micelial in vitro de um espécime de Daldinia coletado na Amazônia brasileira. Estudos morfológicos e moleculares do fungo o indetificaram como D. eschscholtzii. Para avaliação do crescimento micelial o fungo foi cultivado nas temperaturas de 20, 25, 30, 35 e 40 ºC e nos meios de cultura extrato de malte-peptona ágar (EMPA), extrato de malte-peptona (EMP), batata dextrose (BD) e meio mínimo (MM). O melhor crescimento micelial ocorreu a 35 ºC, entretanto, a maior quantidade de biomassa foi obtida a 25 e 30 ºC. O meio BD provou ser o melhor meio para produção de biomassa.

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A Pair of Novel Heptentriol Stereoisomers from the Ascomycete Daldinia concentrica

Cited by 18 publications

References 14 publications

Induced Daldinin A, B, C with a New Skeleton from Cultures of the Ascomycete Daldinia concentrica

Induced Daldinin A, B, C with a New Skeleton from Cultures of the Ascomycete Daldinia concentrica

Inedible mushrooms: a good source of biologically active substances

Daldinia eschscholtzii (Ascomycota, Xylariaceae) isolated from the Brazilian Amazon: taxonomic features and mycelial growth conditions

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