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Dissertations / Theses on the topic 'Endophyte fungus'

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Published: 5 June 2025
Last updated: 15 July 2025

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1

Blankenship, Jimmy Douglas. "LOLINE ALKALOID BIOSYNTHESIS IN NEOTYPHODIUM UNCINATUM, A FUNGAL ENDOPHYTE OF LOLIUM PRATENSE." Lexington, Ky. : [University of Kentucky Libraries], 2004. http://lib.uky.edu/ETD/ukyplpa2004d00157/JDB2004.pdf.

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Thesis (Ph. D.)--University of Kentucky, 2004.<br>Title from document title page (viewed Sept. 14, 2004). Document formatted into pages; contains ix, 97 p. : ill. Includes abstract and vita. Includes bibliographical references (p. 86-96).
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2

Reivant, Munters Arielle. "The foliar bacterial endophyte community in native Pinus radiata: a role for protection against fungal disease?" Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-234871.

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Pinus radiata is the most planted tree in the southern hemisphere. The planted trees are especially susceptible to pathogens, but even the native population, nowadays limited tomerely five locations, are threatened by diseases caused by arthropods, fungi and dehydration. Endophytes are bacteria or fungi that reside inside healthy plant tissue, and often have a beneficial effect on their hosts. Endophytes can help plants adapt to abiotic stress such as drought and protect them against pathogens and insect pests. Given the roles that endophytes play in host stress responses, it is possible that
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3

Athman, Shahasi Yusuf. "Host-endophyte-pest interactions of endophytic Fusarium oxysporum antagonistic to Radopholus similis in banana (Musa spp.)." Thesis, Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-12072006-105803.

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Cafêu, Mariana Carrara. "Estudo químico e avaliação biológica dos fungos endofíticos Xylaria sp. e Colletotrichum crassipes isolados de Casearia sylvestris (Flacourtiaceae) /." Araraquara : [s.n.], 2007. http://hdl.handle.net/11449/105831.

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Orientador: Ângela Regina Araújo<br>Banca: Dulce Helena Siqueira Silva<br>Banca: Lourdes Campaner dos Santos<br>Banca: Hosana Maria Debonsi<br>Banca: Dionéia Camilo Rodrigues de Oliveira<br>Resumo: Este trabalho descreve a triagem de 21 fungos endofíticos associados a espécies vegetais de Cerrado e Mata Atlântica. Os extratos brutos fornecidos por estes fungos foram avaliados quimicamente (CLAE e RMN1H) e submetidos a bioensaios para avaliação da potencialidade antifúngica, antioxidante e anticolinesterásica, onde se mostraram promissores. Após esta triagem, os fungos Xylaria sp. E Colletotric
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Hundley, Nicholas James. "Structure Elucidation of Bioactive Compounds Isolated from Endophytes of Alstonia scholaris and Acmena graveolens." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1013.pdf.

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6

Zanardi, Lisinéia Maria [UNESP]. "Estudo químico e biológico de fungos endofídicos associados a Senna spectabilis." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/105775.

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Made available in DSpace on 2014-06-11T19:35:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-09-24Bitstream added on 2014-06-13T20:26:04Z : No. of bitstreams: 1 zanardi_gj_dr_araiq.pdf: 7757680 bytes, checksum: 124090a2cfedea428566b448f77acc17 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Este trabalho descreve o isolamento de 43 fungos endofíticos associados à espécie vegetal Senna spectabilis, e a triagem química e biológica destes. Os extratos brutos em AcOEt produzidos pelos fungos foram avaliados quimicamente por CCDC, CLAE-DAD e RMN de 1H, e
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Cafêu, Mariana Carrara [UNESP]. "Estudo químico e avaliação biológica dos fungos endofíticos Xylaria sp. e Colletotrichum crassipes isolados de Casearia sylvestris (Flacourtiaceae)." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/105831.

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Made available in DSpace on 2014-06-11T19:35:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-08-17Bitstream added on 2014-06-13T20:26:07Z : No. of bitstreams: 1 cafeu_mc_dr_araiq.pdf: 2687839 bytes, checksum: 6f78bffb8a9f427b48e9b75f8cda9db6 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Este trabalho descreve a triagem de 21 fungos endofíticos associados a espécies vegetais de Cerrado e Mata Atlântica. Os extratos brutos fornecidos por estes fungos foram avaliados quimicamente
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Almeida, Marília Oliveira de. "Avaliação do efeito de moduladores epigenéticos na biossíntese de produtos naturais em fungos." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-31102014-100157/.

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A manipulação seletiva de alvos epigenéticos usando pequenas moléculas inibidoras das enzimas histona-desacetilases (HDACs) e DNA metiltransferases (DNMTs) é uma estratégia para estimular a expressão das vias biossintéticas e a produção de novos metabólitos secundários em fungos. Neste trabalho, inibidores de histonadesacetilases (butirato de sódio, ácido hidroxâmico suberoilanilida e ácido valproico) e inibidores de DNA metiltransferases (5-azacitidina, hidralazina, procaína e procainamida) foram suplementados em culturas líquidas e sólidas dos fungos endofíticos Fusarium oxysporum SS46, Hyph
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9

Vandegrift, Andrew. "Ecological Roles of Fungal Endophytes." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20401.

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Endophytic fungi live within tissues of plant hosts without causing symptoms of disease. These fungi are broadly split into the taxonomically and ecologically cohesive Clavicipitaceous endophytes, which infect grasses, and the taxonomically diverse non-Clavicipitaceous endophytes, which are found in nearly all plants and have diverse ecological strategies. My dissertation has two sections: Section A investigates the intersection of Clavicipitaceous endophyte ecology with other ecological theory, including invasion ecology (Chapter II) and community ecology and climate change (Chapter III); Sec
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Zanardi, Lisinéia Maria. "Estudo químico e biológico de fungos endofídicos associados a Senna spectabilis /." Araraquara : [s.n.], 2010. http://hdl.handle.net/11449/105775.

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Orientador: Angela Regina Araújo<br>Banca: Marcia Nasser Lopes<br>Banca: Lourdes Campaner dos Santos<br>Banca: Luiz Alberto Beraldo de Moraes<br>Banca: Geraldo Humberto Silva<br>Resumo: Este trabalho descreve o isolamento de 43 fungos endofíticos associados à espécie vegetal Senna spectabilis, e a triagem química e biológica destes. Os extratos brutos em AcOEt produzidos pelos fungos foram avaliados quimicamente por CCDC, CLAE-DAD e RMN de 1H, e submetidos a bioensaios para avaliação da potencialidade antifúngica, antioxidante e anticolinesterásica, onde se mostram promissores. A partir dos re
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Oliveira, Camila Martins de [UNESP]. "Estudo químico e biológico dos fungos endofílicos associados com a espécie vegetal Alibertia macrophylla (Rubiaceae)." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/105828.

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Made available in DSpace on 2014-06-11T19:35:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-04-17Bitstream added on 2014-06-13T20:06:36Z : No. of bitstreams: 1 oliveira_cm_dr_araiq.pdf: 6887141 bytes, checksum: 82b00c7d4674c3606654ce87230ecfce (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Este trabalho, descreve a busca de substâncias bioativas a partir do estudo químico e biológico dos extratos brutos produzidos pelos fungos endofíticos AM-01 identificado como Penicillium sp1, AM-02
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Arnold, Anne Elizabeth. "Neotropical fungal endophytes: Diversity and ecology." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/289841.

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Fungal endophytes associated with leaves of woody plants are thought to be diverse and abundant, especially in tropical forests. However, associations of endophytes with tropical woody angiosperms have not been characterized in detail. In this dissertation, I assess: (1) the scale of endophyte biodiversity in a tropical forest; (2) ecological, temporal, and host-mediated factors influencing endophyte abundance in leaves of tropical trees; (3) utility of endophyte morphospecies as functional taxonomic units; and (4) the nature of endophyte-host interactions. To characterize endophyte biodiversi
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Younginger, Brett Steven. "Fungal Endophytes in a Seed-Free Host: New Species that Demonstrate Unique Community Dynamics." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4387.

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Fungal endophytes are highly diverse, cryptic plant endosymbionts that form asymptomatic infections within host tissue. They represent a large fraction of the millions of undescribed fungal taxa on our planet with some demonstrating mutualistic benefits to their hosts including herbivore and pathogen defense and abiotic stress tolerance. Other endophytes are latent saprotrophs or pathogens, awaiting host plant senescence to begin alternative stages of their life cycles. Most, however, are likely plant commensals with no observable benefits to their hosts while under study. Yet, when considerin
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14

Poinso, Alix. "Recherche d'inhibiteurs de la superoxyde dismutase à partir de substances naturelles." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30378/document.

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Le but de ce travail de thèse était de rechercher de nouvelles molécules inhibitrices de la SOD dans des extraits de substances naturelles. Cette enzyme majeure du stress oxydant étant impliquée dans de nombreux mécanismes de défense des cellules cancéreuses contre l'apoptose représente une voie thérapeutique d'avenir. Nous en avons recherché dans les champignons endophytes de plantes péruviennes, ces micro-organismes produisant de nombreux métabolites de défense des plantes hôtes. Ce travail de thèse a d'abord porté sur l'isolement, la culture, l'identification, l'extraction et la caractérisa
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15

Ben, Chobba Kadri Inès. "Élaboration et mise en oeuvre d'une approche de caractérisation systémique d'un agent étiologique émergent à fort impact économique et de moyens de lutte biologique : application à la maladie de la feuille cassante du palmier dattier (Phoenix dactylifera L.)." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20077.

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La Maladie de la Feuille Cassante du Palmier dattier (Phoenix dactylifera L.) constitue un cas d'émergence d'une maladie à fort impact économique causée par un agent étiologique inconnu. Notre stratégie a visé à élaborer une approche sans à priori de l'émergence pouvant être transposée à n'importe quelle situation de ce type. En nous appuyant sur des caractérisations successives des compartiments viraux, bactériens et fongiques de tissus sains et malades, nous avons cherché à mettre en évidence des différences de composition spécifiques et de distribution de ces flores sur 2 campagnes de prélè
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CONCAS, JONATHAN. "Spatial Distribution of Grapevine Esca Disease in Vineyards of the Marche Region and Study of Fungal Endophytic Communities." Doctoral thesis, Università Politecnica delle Marche, 2019. http://hdl.handle.net/11566/263846.

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Il mal dell’esca è una malattia complessa, determinata da diversi agenti fungini, che ha attualmente un importante impatto economico sulla viticoltura mondiale. I principali obiettivi della ricerca sono stati i) l’analisi spaziale delle viti con sintomi di mal dell’esca e ii) lo studio delle comunità fungine in viti sintomatiche e asintomatiche. Per quanto riguarda il primo obiettivo, è stato condotto uno studio sulla diffusione del mal dell’esca in tre vigneti commerciali nelle Marche, in modo da poter comprendere meglio come l’infezione evolve nel tempo e nello spazio. Dall’elaborazione dei
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Gao, Ying [Verfasser]. "Secondary Metabolites from the Endophytic Fungus Aplosporella javeedii / Ying Gao." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2021. http://d-nb.info/1228622043/34.

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Sia, Eliandra de Freitas. "Meios de cultura alternativos para fungos utilizando diferentes substratos, especialmente de mandioca (manihot esculenta)." Universidade Federal do Amazonas, 2012. http://tede.ufam.edu.br/handle/tede/3126.

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Made available in DSpace on 2015-04-20T12:31:50Z (GMT). No. of bitstreams: 1 Eliandra de Freitas Sia.pdf: 1557550 bytes, checksum: e4d21c384795b53b83656a535e1bf31f (MD5) Previous issue date: 2012-09-04<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The filamentous fungi are an important group of microorganisms, being not only one of the most numerous among the microorganisms due to their potential in biotechnological processes such as the production of antibiotics, enzymes, vitamins and others. The fungi are also plant, animals and human pathogens, acting sometimes as
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U'Ren, Jana M. "Host-, Geographic-, and Ecological Specificity of Endophytic and Endolichenic Fungal Communities." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202977.

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As one of the most diverse and ecologically important clades of life, fungi are best known as pathogens, saprotrophs, mycorrhizae, and lichens. Yet an enormous amount of previously unknown diversity occurs among endophytic and endolichenic fungi--species-rich, horizontally transmitted fungi that live within asymptomatic photosynthetic structures such as leaves and lichens. Here, I explore the biodiversity of these understudied symbiotrophs and the ecological and biogeographic factors influencing their communities.To evaluate methods currently used in ecological studies of environmental sample
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Barakat, Fatima. "Etude mycochimique et activités leishmanicides de composés issus de Botryosphaeria mamane, un champignon endophyte isolé de Bixa orellana L." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30227.

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Les maladies tropicales négligées, telle que la leishmaniose, constituent un problème majeur de santé publique, en particulier dans les pays à faible revenu où cette maladie sévit. Le nombre limité des médicaments disponibles, leurs coûts, leurs effets indésirables et l’émergence de résistances, exige la recherche de nouveaux agents thérapeutiques. Les champignons endophytes constituent une source prometteuse de nouvelles molécules bioactives. Dans ce contexte, une étude mycochimique a été menée sur une souche endophyte de Botryosphaeria mamane, un micromycète relativement peu étudié, isolée d
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Oliveira, Camila Martins de. "Estudo químico e biológico dos fungos endofílicos associados com a espécie vegetal Alibertia macrophylla (Rubiaceae) /." Araraquara : [s.n.], 2009. http://hdl.handle.net/11449/105828.

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Orientador: Ângela Regina Araujo<br>Banca: Silvia Noeli López<br>Banca: Mônica Tallarico Pupo<br>Banca: Maria da Conceição Farreira de Oliveira<br>Banca: Luce Maria Brandão Torres<br>Resumo: Este trabalho, descreve a busca de substâncias bioativas a partir do estudo químico e biológico dos extratos brutos produzidos pelos fungos endofíticos AM-01 identificado como Penicillium sp1, AM-02 e AM-03 não identificados e AM-04, também pertencente ao gênero Penicillium, que foram isolados das folhas de Alibertia macrophylla. Os fungos endofíticos isolados, foram cultivados em meio líquido MBD, e sólid
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Xin, Gang. "Diazotrophic endophytes of Populus /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/10104.

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Costa, Luis Paulo de Sousa. "Bioprospecção de fungos endofíticos da alga vermelha Pyropia spiralis /." Araraquara, 2016. http://hdl.handle.net/11449/143765.

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Orientador: Dulce Helena Siqueira Silva<br>Banca: Angela Regina Araujo<br>Banca: Edson Rodrigues Filho<br>Resumo: This work dealt with the study of fungal strains Sarocladium strictum (Ps-02) e Coniothyrium sp. (Ps-03) associated to the red macroalga Pyropia spiralis, collected at SP State shore. Their extracts were obtained in different culture media: rice, malt and Czapek, which induced diversified metabolic production, as shown by HPLC-DAD and NMR analyses and evidenced that the metabolic profile depends on culture media for these strains. Extracts and fractions from Sarocladium strictum an
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Ricks, Kevin Daniel. "Biotic Filtering in Endophytic Fungal Communities." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6871.

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Plants can be colonized by complex communities of endophytic fungi. This thesis presents two studies, both of which investigate biotic filtering in endophytic fungal communities. Chapter 1. Endophytic fungi can be acquired horizontally via propagules produced in the environment such as in plant litters of various species. Given that litters from different plant species harbor distinct endophytic fungal communities and that endophytic fungi may be dispersal-limited, the structure of the endophytic fungal community of a given plant may be determined by proximity to particular inoculum sources. C
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Davis, Emily L. "Saprotrophic Capacity of Endophytic Fungi." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9179.

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Endophytic fungi inhabit the living tissue of a host plant for at least a portion of their life cycle. While some researchers have shown that various endophytic fungi participate in litter decomposition, we do not know whether such fungi are actually saprotrophic, meaning that they can obtain energy from litter. Therefore, I determined if endophytic fungi are saprotrophs using leaf litter as the energy source. All 49 tested isolates were found to be saprotrophic. To compare the saprotrophic capacities of fungi from different habitats, which produce different types of litter, a universal litter
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Triastuti, Asih. "Exploration de la diversité chimique dans les endophytes fongiques : influence de l'addition des modificateurs épigénétiques et des co-cultures fongiques sur le métabolome de Botryosphaeria mamane." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30228.

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Ce travail porte sur l'étude chimique d'une souche endophyte de Botryosphaeria mamane, un micromycète relativement peu étudié, isolée des feuilles de Bixa orellana. Des travaux préliminaires portant sur le screening de 409 souches de champignons isolés à partir de plantes médicinales d'Amérique du Sud a révélé que parmi celles-ci, B. mamane E224 était l'une des souches les plus actives in vitro sur un modèle de Leishmania infantum. L'objectif de ce travail a consisté en l'induction de la production de nouveaux métabolites secondaires produits par B. mamane via l'optimisation des conditions de
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Bailes, Graham. "Drivers of endophyte communities in Pacific Northwest prairies." Thesis, University of Oregon, 2017. http://hdl.handle.net/1794/22783.

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Prairies of the Pacific Northwest are threatened systems, with only ~2% of historic land remaining. The combined risk of global climate change and land use change make these systems a high conservation priority. However, little attention has been paid to the microbiota. Fungal endophytes are ubiquitous in plants and are important in ecosystem functioning and host dynamics. To understand fungal community assembly, we used high-throughput sequencing to investigate the composition of fungal foliar endophyte communities in two native, cool-season (C3) bunchgrasses along a natural latitudinal g
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Silva, Marcia Eloisa da. "Comunidades fúngicas endofítica, epifítica e rizosférica em diferentes ecossistemas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/7325.

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O presente trabalho teve por objetivo avaliar o efeito de três ecossistemas sobre, a ocorrência de fungos rizosféricos, endofíticos e epifíticos. As áreas de estudo estão localizadas em uma propriedade rural, situada na cidade de Venâncio Aires, RS. Os fungos endofíticos e epifíticos foram isolados de amostras de raízes de guajuvira, (Patagonula americana L.), coletadas na mata (área 1), de uva-do-japão (Hovenia dulcis Thunb.), na área intermediária (área 2) e de fumo ou de milho, na lavoura (área 3) e, os fungos rizosféricos isolados de solo coletado junto as raízes dos vegetais citados. As a
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Bagherzadeh, Mahtaab. "CAN INCREASING GRASS-FUNGAL ENDOPHYTE SYMBIOTIC DIVERSITY ENHANCE GRASSLAND ECOSYSTEM FUNCTIONING?" UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/105.

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The relationship between biodiversity and ecosystem functioning is important in maintaining agroecosystem sustainability. Plant-microbe symbioses, such as exists between the grass tall fescue (Schedonorus arundinaceum) and the asexual fungal endophyte Epichloë coenophiala, can be utilized to enhance agroecosystem functions, such as herbivore resistance. “Novel” E. coenophiala strains that vary in the production of mammal- and insect-toxic compounds have been identified, inserted into tall fescue cultivars, and are planted in pastures globally. Novel fungal endophyte-tall fescue associations ma
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Triolet, Marion. "Identification et caractérisation de candidats d'origine naturelle à action herbicide pour contrôler les adventices." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCK032.

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Un projet visant à identifier des mycoherbicides pour lutter contre les adventices a été initié entre l’UMR Agroécologie de Dijon et la société DE SANGOSSE® (Agen). Trois volets ont structuré ce projet à l’issue d’une collecte de prélèvement de 475 plantes représentatives de 23 espèces d’adventices symptomatiques et asymptomatiques en Bourgogne et en Beauce. Le 1er volet reposait sur une approche de type metabarcoding (technologie Illumina), pour évaluer et comparer la diversité des communautés fongiques endophytes des plantes symptomatiques et asymptomatiques. 542 genres fongiques ont ainsi é
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Hu, De Jun. "The fermentation and chemical characters of the endophytic fungus from Dendrobium huoshanense." Thesis, University of Macau, 2011. http://umaclib3.umac.mo/record=b2494449.

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32

Auer, Susann. "Biological control of clubroot (Plasmodiophora brassicae) by an endophytic fungus (Acremonium alternatum)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-179368.

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The biological control of plant pests with beneficial microbes has become increasingly important over the last decades. Soil microbes such as fungi and bacteria colonise the roots of plants and promote their growth. Some beneficial microbes can trigger a weak plant defence response that enhances the immune response of the plant at subsequent pathogen attacks and therefore increase the resistance of the plant to other invaders. This mechanism is called “priming”. While biocontrol agents are applied against a variety of plant pests fundamental knowledge of the molecular mechanisms of plant-micro
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Björken, Lars. "Detection of endophytic fungi in aspen." Thesis, Umeå University, Plant Physiology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-24769.

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<p>Endophytes are mutualistic fungi living in green tissue of all plants examined so far.Some of these fungi can produce compounds that are beneficial to the host plant, and it isalso known that some pathogenic fungi live parts of their lives as endophytes. Endophyticinteractions have been well characterized in various grasses, but much is unknown abouttheir interactions with trees. One reason for this is that the fungal biodiversity is muchlarger among endophytes in trees than in grasses, another is that screening for endophytestakes a lot of work. The goal of this thesis work was to develop
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Ruchikachorn, Nutthaporn. "Endophytic fungi of Cassia fistula L." Thesis, Liverpool John Moores University, 2005. http://researchonline.ljmu.ac.uk/5773/.

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Endophytic fungi from Cassia fistula or golden shower, a well known medicinal plant in Thailand and Asia, were isolated from trees growing in three geographical separate sites. These locations were Kanchanaburi, Nakhon Ratchasima and Bangkok and were selected to allow comparisons between their endophytic assemblages and to evaluate these data in relation to differences in plant diversity and density and local environment. Kanchanaburi which was the site closest to a natural forest situation provided the highest number of isolates with Bangkok, where the trees were isolated individuals, having
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Jahn, Linda. "Characterization of a new endophytic astinproducer, Pelliciarosea asterica, from Aster tataricus." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190281.

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Aster tataricus (Asteraceae) is a plant native to Northern Asia and known for its use in the Traditional Chinese and Japanese Medicine. Beside many other secondary metabolites, it contains pentapeptides called astins from which some show an antitumor activity against different human cell lines. Astins are chlorinated, cyclic pentapeptides consisting of proteinogenic and non-proteinogenic amino acids. The astin structure indicates the involvement of non ribosomal peptide synthetases as well as flavin-dependent halogenases. Both enzymes are currently only known from bacteria and fungi. A new e
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Brosi, Glade Blythe. "THE RESPONSE OF TALL FESCUE AND ITS FUNGAL ENDOPHYTE TO CLIMATE CHANGE." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_theses/126.

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Tall fescue is the most common cool-season grass in the eastern USA, with broad economic and ecological importance to the region. Tall fescue is known to associate with a fungal endophyte, Neotyphodium coenophialum, whose presence can decrease biotic and abiotic stress experienced by the plant. This thesis evaluates the response of tall fescue and the fungal endophyte symbiosis to predicted climate change. I participated in two multi-factor climate change projects where I investigated the response of tall fescue tissue chemistry and growth to various climate change factors. Endophyte-infected
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Nascimento, HÃlio Oliveira do. "Study of the chemical and cytotoxic potential of secondary metabolites of endophytic fungus Periconia hispidula." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16271.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Periconia hispidula is an endophytic fungus isolated from dried leaves from semi-arid dunes of Bahia. The fungus was subjected to cultivation by varying nutritional factors in four different culture mediuns: MPD (malt, peptone and dextrose), BD (potato dextrose), BDL (potato, dextrose and yeast) and MntPL (mannitol, peptone and yeast), and analyzing the extracts on different incubation days (7, 14, 21, 28 days). A survey of primary cytotoxic activity was carried out fr
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Maki, Cristina Sayuri. "Diversidade e potencial biotecnológico de fungos endofíticos de cacau (Theobroma cacao L.)." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-06042006-172002/.

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Endófitos são todos os microrganismos, cultiváveis ou não, que habitam o interior dos tecidos vegetais, não causando danos ao hospedeiro e nem o desenvolvimento de estruturas externas, excluindo, dessa forma, bactérias noduladoras e micorrizas. Theobroma cacao L. é importante para as indústrias alimentícia e cosmética, por constituir a matéria prima para a produção de manteiga de cacau. Considerando a importância do estudo do cacaueiro e sua comunidade fúngica endofítica associada, os objetivos desse trabalho foram: i) estudar a diversidade da comunidade endofítica de cacau; ii) avaliar o pot
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Schrör, Jan-Philipp [Verfasser]. "The endophytic fungus Stemphylium globuliferum – secondary metabolites and biological activities / Jan-Philipp Schrör." Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1188732552/34.

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Gordien, Andrâea Y. "Phytochemical and antimicrobial studies of Scottish plants and fungal endophytes." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=14347.

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Abrahão, Meissa Rocha Essenfelder 1984. "Desenvolvimento de processo biotecnológico para produção de compostos de aroma por fungos endofíticos : Biotechnological process development for the production of aroma compounds through endophytic fungi." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254210.

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Orientador: Gláucia Maria Pastore<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-24T20:06:37Z (GMT). No. of bitstreams: 1 Abrahao_MeissaRochaEssenfelder_M.pdf: 2164946 bytes, checksum: 5d4f141c4a784953c0b6ee598b74b6e3 (MD5) Previous issue date: 2014<br>Resumo: A biotecnologia é uma área interdisciplinar que tem possibilitado inúmeros avanços no desenvolvimento de processos sustentáveis e na obtenção de novos produtos de interesse industrial. Entre estes exemplos estão os aromas naturais que, atualment
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Silva, Eliane de Oliveira. "Otimização das condições de cultivo e investigação das atividades citotóxica e antimicrobiana de metabólitos secundários do fungo endofítico Drechslera ravenelii." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-08062010-161118/.

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O interesse na obtenção de novos fármacos a partir de micro-organismos endofíticos vem crescendo, uma vez que esta é uma fonte ainda pouco explorada. Além disso, o estudo das interações entre plantas e micro-organismos tem sido amplamente discutido ao longo dos últimos anos. No presente trabalho, o fungo endofítico Drechslera ravenelii (SS33), isolado das folhas de Smallanthus sonchifolius (yacon), foi cultivado sob diferentes condições fermentativas, objetivando a determinação das melhores condições para produzir metabólitos secundários com atividades antimicrobiana e/ou citotóxica. Para tal
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Mekkamol, Sureewan. "Endophytic fungi of Tectona grandis L. (Teak)." Thesis, Liverpool John Moores University, 1998. http://researchonline.ljmu.ac.uk/5030/.

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Taxonomic diversity, biology and ecological aspects of fungal endophytes of Tectona grandis (teak) from Chiang Mai Province, Thailand were investigated. It was found that the endophyte assemblages of mature leaves sampled from natural forest and plantation teak were not significantly different. Members of the Xylariaceae, especially Daldinia eschscholzii, Nemania subannulata, Hypoxylon haematostroma and Xylaria cubensis were frequent isolates. Widely reported endophytic fungi such as Phomopsis, Colletotrichum, Cladosporium and Fusarium were also isolated. There is little evidence to support ho
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Rogers, Kristina Danielle. "Chemical investigations of fungicolous and endophytic fungi." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/2762.

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Fungi are rich sources of structurally diverse secondary metabolites, some of which possess biological activities of importance to medicine and agriculture. Research in our group focuses on application of ecological considerations to the selection of underexplored fungi for chemical analysis in search of new natural products with potentially important bioactivities. The work described in this thesis involved studies of members of two different fungal ecological groups, fungicolous and endophytic fungi. Fungicolous fungi colonize other fungi and are viewed as potential sources of antifungal age
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Phatak, Nisarga Laxman. "Chemical investigation of fungicolous and endophytic fungi." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/4719.

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Fungi have been an important source of many structurally diverse and biologically active secondary natural products. These secondary metabolites have found applications in pharmaceutical and agriculture industry. Fungi are estimated to be second only to insects in species diversity. It is estimated that there are at least 3.5 million species of fungi of which a less than 5% have so far been explored. Fungi are known to produce many secondary natural metabolites, however their role has still not been clearly understood. However it is possible that fungi which often thrive in competitive environ
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Kaur, Amninder. "Chemical investigations of endophytic and fungicolous fungi." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2539.

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Fungi continue to serve as valuable sources of a diverse variety of bioactive secondary metabolites, some of which have found applications as important pharmaceuticals and agrochemicals. Our research group employs an ecology-based strategy for the selection of fungi for chemical studies. The research described here involves chemical investigation of fungicolous and endophytic fungi that resulted in the isolation and identification of many new natural products, as well as some previously known metabolites. Mycoparasitic and
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Beau, Jeremy. "Drug Discovery from Floridian Mangrove Endophytes." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4287.

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A significant challenge of the 21st century is the growing health threat stemming from drug-resistant infectious diseases. There is an undeniable need to discover new, safe and effective drugs with novel mechanisms of action to combat this threat. A study of drugs currently on the market showed that natural products account for approximately 75% of new anti-infective drugs, either as new agents or analogs based upon their structure. Unfortunately, major pharmaceutical companies have cut back tremendously in natural products research in part due to the frustrating obstacle of frequent rediscove
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Andrade, Linares Diana Rocío. "Characterization of tomato root-endophytic fungi and analysis of their effects on plant development, on fruit yield and quality and on interaction with the pathogen Verticillium dahliae." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5137/.

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Non-mycorrhizal fungal endophytes are able to colonize internally roots without causing visible disease symptoms establishing neutral or mutualistic associations with plants. These fungi known as non-clavicipitaceous endophytes have a broad host range of monocot and eudicot plants and are highly diverse. Some of them promote plant growth and confer increased abiotic-stress tolerance and disease resistance. According to such possible effects on host plants, it was aimed to isolate and to characterize native fungal root endophytes from tomato (Lycopersicon esculentum Mill.) and to analyze their
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Machado, Maria Aliete Bezerra Lima. "Isolamento, caracterização e avaliação da atividade antimicrobiana de fungos endofíticos de Caesalpinia echinata Lam. (Leguminosae - caesalpinioideae)." Universidade Federal de Alagoas, 2009. http://www.repositorio.ufal.br/handle/riufal/2460.

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The endophytic microorganisms in at least one phase of its life cycle inhabit the inner tissues of plants without causing apparent damage. Like other tropical species, Caesalpinia echinata Lam has shown several endophytes. Therefore this study aimed to isolate and characterize the endophytic fungi of Brazil wood, as well as assess the antimicrobial activity of extracts. The harvesting of stems has been done in a fragment of Atlantic Forest, and the leaves were harvested from trees growing in the campus of the Universidade Federal de Alagoas. There was a predominance of filamentous fungi compar
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Eastwood, Daniel Christopher. "Physiology of Acremonium endophytes and their interaction with Pooideae grasses." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243230.

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