Endophytic Fungus
Mostrando 25-36 de 80 artigos, teses e dissertações.
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25. Immobilization of Lipases Produced by the Endophytic Fungus Cercospora kikuchii on Chitosan Microparticles
This work studied the immobilization of Cercospora kikuchii lipases on chitosan microparticles by chemical attachment on chitosan acetate microparticles activated by glutaraldehyde (CAM) added before or after the enzyme and physical adsorption on highly deacetylated chitosan hydrochloride microparticles (CHM). Lipases covalently immobilized on pre-activated
Braz. arch. biol. technol.. Publicado em: 2014-08
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26. Antifungal activity of metabolites of the endophytic fungus Trichoderma brevicompactum from garlic
The endophytic fungus strain 0248, isolated from garlic, was identified as Trichoderma brevicompactum based on morphological characteristics and the nucleotide sequences of ITS1-5.8SITS2 and tef1. The bioactive compound T2 was isolated from the culture extracts of this fungus by bioactivity-guided fractionation and identified as 4β-acetoxy-12,13-epoxy-Δ9-t
Braz. J. Microbiol.. Publicado em: 02/05/2014
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27. Optimization of zofimarin production by an endophytic fungus, Xylaria sp. Acra L38
To optimize the medium for high zofimarin production, sucrose maltose, glucose, tryptone and peptone were used in an orthogonal array design experiment, where the highest value of zofimarin produced was 25.6 µg/mL. This value was about 3 times higher than that obtained with Czapek yeast extract (CzYE) culture medium. A study with Plackett-Burman design show
Braz. J. Microbiol.. Publicado em: 2014
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28. Larvicidal effects of endophytic and basidiomycete fungus extracts on Aedes and Anopheles larvae (Diptera, Culicidae)
Introduction In vitro bioassays were performed to access the larvicidal activity of crude extracts from the endophytic fungus Pestalotiopsis virgulata (Melanconiales, Amphisphaeriaceae) and the saprophytic fungus Pycnoporus sanguineus (Basidiomycetes, Polyporaceae) against the mosquitoes Aedes aegypti and Anopheles nuneztovari. Methods The extracts were t
Rev. Soc. Bras. Med. Trop.. Publicado em: 08/08/2013
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29. Talaroxanthone, a novel xanthone dimer from the endophytic fungus Talaromyces sp. associated with Duguetia stelechantha (Diels) R. E. Fries
DgCr22.1b, um isolado endofítico de Talaromyces sp., foi coletado na Floresta Amazônica a partir da planta medicinal Duguetia stelechantha. Do fracionamento do extrato metanólico de sua massa micelial, foi isolada uma nova xantona dimérica talaroxantona. A estrutura deste novo composto foi elucidada com base em análises espectroscópicas incluindo exper
J. Braz. Chem. Soc.. Publicado em: 2013-05
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30. Micro-organismos de interesse farmacêutico e agrícola: estudo químico e biossintético / Microorganisms of pharmaceutical and agricultural interests: chemical and biosynthetic studies
The microbial biodiversity from different ecosystems has incited chemical and biological studies with microorganisms from several habitats, leading to the isolation of bioactive natural products with applications in medicine, chemical industry and agriculture, and thus contributing to a better quality of life. This thesis aimed the biopropecting on endophyti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2012
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31. Effect of precursors feeding and media manipulation on production of novel anticancer pro-drug camptothecin from endophytic fungus
We have established methodology for the isolation and characterization of a novel endophytic fungus from the inner bark of medicinal plant Nothapodytes foetida, which produced camptothecin in Sabouraud broth (SB) under shake flask conditions. Camptothecin and its related compounds are at present obtained by extraction from intact plants, but fungal endopytes
Braz. J. Microbiol.. Publicado em: 2012-12
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32. Endophytic fungi occurring in Ipomoea carnea tissues and their antimicrobial potentials
The aim of this work was to study the endophytic fungi associated with the tissues of Ipomoea carnea, a common invasive plant of India. A total of 69 isolates belonging to ten taxa comprising 1.45% Zygomycetes, 10.14% Coelomycetes, 62.32% Hypomycetes, 18.84% sterile mycelia and 7.25% unidentified species were obtained. Species of Curvularia, Aspergillus, Fus
Braz. arch. biol. technol.. Publicado em: 2012-10
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33. Diversity of leaf endophytic fungi in mangrove plants of Northeast Brazil
With the aim of increasing the knowledge about endophytic fungi, a group of microorganisms with high biotechnological potential and a valuable source of useful metabolites, a survey in leaves of mangrove plants (Avicennia schaueriana, Laguncularia racemosa, and Rhizophora mangle) was performed at the Itamaracá Island, PE, Brazil. Leaves were collected, duri
Braz. J. Microbiol.. Publicado em: 2012-09
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34. Chemical characterization of bioactive compounds from the endophytic fungus Diaporthe helianthi isolated from Luehea divaricata
Endophytic microorganisms, defined as fungi or bacteria that colonize the interior of plants without causing any immediate negative effects or damages, have reciprocal relationships with host plants. In some cases their presence is beneficial to the host due to the synthesis of bioactive compounds, among which several alcohols, esters, ketones and others tha
Braz. J. Microbiol.. Publicado em: 2012-09
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35. Evaluation of herbicidal potential of depsides from Cladosporium uredinicola, an endophytic fungus found in Guava fruit
Dois produtos naturais produzidos por Cladosporium uredinicola, um fungo endofítico isolado da goiaba, tiveram seus efeitos sobre a fotossíntese avaliados. Os compostos inibiram o fluxo de elétrons (basal, fosforilante e desacoplado) de água a metilviologênio (MV). Esses compostos atuam como inibidores da reação de Hill em tilacóides de espinafre fre
J. Braz. Chem. Soc.. Publicado em: 16/08/2012
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36. Sesquiterpenos produzidos pelo fungo endofítico Phomopsis cassiae com atividade antifúngica e inibidora de acetilcolinesterase
SESQUITERPENES PRODUCED BY ENDOPHYTIC FUNGUS Phomopsis cassiae WITH ANTIFUNGAL AND ACETYLCHOLINESTERASE INHIBITION ACTIVITIES. Two new diastereoisomeric cadinanes sesquiterpenes 3,9-dihydroxycalamenene (1-2), along with the known 3-hydroxycalamen-8-one (3) and aristelegone-A (4), were isolated from ethyl acetate extract of Phomopsis cassiae, an endophytic fu
Quím. Nova. Publicado em: 2012