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picea/seenevastane
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Leht 1 alates 33 tulemused
Tetranorditerpene lactones, potent antifungal antibiotics for human pathogenic yeasts, from a unique species of Oidiodendron.
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The culture filtrate of a fungus isolated from decaying Picea glauca wood and tentatively identified as Oidiodendron cf. truncatum showed strong antibiotic activity against the pathogenic yeast, Candida albicans. Four new tetranorditerpenoids, oidiodendrolides A (3), B (4), and C (5) and
Antioxidative and antifungal response of woody species to environmental conditions in the urban area.
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The complexity of ecological conditions in urban areas imposes the plant species need for the development of various biochemical and physiological adaptive strategies. The aim of our research was to examine the antioxidative and antifungal metabolism of species Pinus nigra, Picea omorika, Tilia
Organic acids and water-soluble phenolics produced by Paxillus sp. 60/92 together show antifungal activity against Pythium vexans under acidic culture conditions.
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Ectomycorrhizal fungi can produce antifungal compounds in vitro as well as in symbiosis with the host plant that can reduce root diseases. The objective of this study was to isolate antifungal compounds from culture filtrate of Paxillus sp. 60/92, which can form mycorrhizas with Picea glehnii
Purification, characterization, and molecular gene cloning of an antifungal protein from Ginkgo biloba seeds.
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A novel basic protein with antifungal activity was isolated from the seeds of Ginkgo biloba and purified to homogeneity. The protein inhibited the growth of some fungi (Fusarium oxysporum, Trichoderma reesei, and Candida albicans) but did not exhibit antibacterial action against Escherichia coli.
A new antifungal and cytotoxic C-methylated flavone glycoside from Picea neoveitchii.
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A new C-methylated flavone glycoside, 5,7-dihydroxy-3-methoxy-6-C-methylflavone 8,4'-di-O-β-D-glucopyranoside (1), was isolated from the twigs and leaves of Picea neoveitchii Mast, together with eight known compounds, 5,7,8,4'-tetrahydroxy-3-methoxy-6-methylflavone 8-O-β-D-glucopyranoside (2)
Antibacterial and antifungal activity of phytosterols and methyl dehydroabietate of Norway spruce bark extracts.
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The current study focuses on the analysis of in vitro biological activity of extract from bark of Norway spruce (Picea Abies), which can find potential application in food and cosmetic industry and pharmacology. Milled bark was subjected to Soxhlet extraction and supercritical fluid extraction to
Ginkbilobin, a novel antifungal protein from Ginkgo biloba seeds with sequence similarity to embryo-abundant protein.
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A novel single-chained antifungal protein with a molecular weight of 13 kDa displaying an N-terminal sequence with marked similarity to embryo-abundant protein from the white spruce was isolated from the seeds of Ginkgo biloba using ion exchange chromatography on DEAE-cellulose, affinity
Production of antifungal and antiinsectan metabolites by the Picea endophyte Diaporthe maritima sp. nov.
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The genus Diaporthe comprises close to 800 species, with around 2000 names attributed to it and its asexual morphs previously recognized in Phomopsis. Diaporthe species are common plant associates, including saprotrophs, pathogens, and endophytes affiliated with a diverse range of hosts worldwide.
Identification of defensin-encoding genes of Picea glauca: characterization of PgD5, a conserved spruce defensin with strong antifungal activity.
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BACKGROUND
Plant defensins represent a major innate immune protein superfamily that displays strong inhibitory effects on filamentous fungi. The total number of plant defensins in a conifer species is unknown since there are no sequenced conifer genomes published, however the genomes of several
WS-5995 B, an antifungal agent inducing differential gene expression in the conifer pathogen Heterobasidion annosum but not in Heterobasidion abietinum.
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The mycorrhization helper bacterium Streptomyces sp. AcH 505 inhibits Norway spruce root infection and colonisation by the root and butt rot fungus Heterobasidion annosum 005 but not by the congeneric strain Heterobasidion abietinum 331 because of higher sensitivity of H. annosum 005 towards the AcH
Chemical constituents of Picea neoveitchii.
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Four flavonoids, 5,7,4'-trihydroxy-3,8,-dimethoxy-6-C-methylflavone (1), 5,8,4'-trihydroxy-3,7-dimethoxy-6-C-methylflavone (2), 7-methoxy-6-C-methylkaempferol (3) and kaempferol-7-O-(2″-E-p-coumaroyl)-α-l-arabinofuranoside (4), together with 15 known compounds, were isolated from the twigs and
Chemical response of Picea glehnii seed-epiphytic Penicillium species to Pythium vexans under in vitro competitive conditions for mycelial growth.
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The potential protection of Picea glehnii seedlings from damping-off by seed-epiphytic Penicillium species was investigated. We studied the chemical response of seed-epiphytic Penicillium species (Pen. cyaneum, Pen. damascenum, and Pen. implicatum) to Pythium vexans, a damping-off fungus, in vitro.
In vitro fungistatic effects of natural coniferous resin from Norway spruce (Picea abies).
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Resins (rosin, pitch) are natural products of the coniferous trees and are antimicrobial against a wide range of microbes. The antifungal effectiveness of resin, purified from Norway spruce (Picea abies), was studied against human pathogenic fungi and yeasts with the agar plate diffusion tests and
Streptomyces AcH 505 triggers production of a salicylic acid analogue in the fungal pathogen Heterobasidion abietinum that enhances infection of Norway spruce seedlings.
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The necrotrophic fungus Heterobasidion spp. is the causal agent of 'annosum root rot' of Norway spruce. In the presence of the rhizosphere bacterium Streptomyces AcH 505, enhanced colonization of Norway spruce roots with Heterobasidion abietinum 331 has previously been observed. By analyzing dual
Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity.
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This study reports for the first time promising antibacterial and antifungal effects of epidihydropinidine, the major piperidine alkaloid in the needles and bark of Norway spruce, Picea abies (L.) Karsten. Epidihydropinidine was growth inhibitory against all bacterial and fungal strains used in our
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- Taimsed ravimid, mida toetab teadus
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- Lugege oma otsinguga seotud teaduspublikatsioone
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- Korraldage oma huvisid ja hoidke end kursis uudisteuuringute, kliiniliste uuringute ja patentidega
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* Kogu teave põhineb avaldatud teaduslikel uuringutel
