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Teses / dissertações sobre o tema "Mycorrhizha"

Autor: Grafiati

Publicado: 14 de dezembro de 2024

Última modificação: 31 de julho de 2025

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1

Bisot, Corentin. "Bridging scales in the Arbsucular Mycorhizal Symbiosis." Electronic Thesis or Diss., Lyon, École normale supérieure, 2024. http://www.theses.fr/2024ENSL0057.

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La vie microscopique des sols est responsable de large flux macroscopique de matière à l’échelle planétaire. Mais la complexité des écosystèmes et des organismes qui les constituent rend difficile le passage d’une échelle à l’autre. La thèse intitulée "Relier les échelles dans la symbiose mycorhizienne arbusculaire" tisse des liens entre des objets allant de la taille de la gouttelette de lipide (~500nm) à la longueur totale d’hyphe de champignons à l’échelleplanétaire (~10^20 m).Le premier chapitre introduit un cadre d'analyse des colonies fongiques par des "ondes de propagation", reliant l'é

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2

Ruotsalainen, Anna Liisa. "Mycorrhizal colonization and plant performance in arcto-alpine conditions /." Oulu [Finland] : Oulun Yliopisto, 2003. http://herkules.oulu.fi/isbn9514269888/html/index.html.

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3

Gao, Lingling. "Control of arbuscular mycorrhizal colonisation : studies of a mycorrhiza-defective tomato mutant." Title page, contents and summary only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phg2117.pdf.

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Bibliography: leaves 161-178. This thesis characterises a mycorrhiza-defective tomato (Lycopersicon esculentum Mill.) mutant, rmc, with respect to fungal colonisation patterns and plant defence reactions during interactions with different species of arbuscular mycorrhizal (AM) fungi, root fungal pathogen Rhizoctonia solani and binucleate Rhizoctonia (a fungal parasite that colonises roots without causing disease). The results suggest that the mutated gene in rmc is involved in the regulation of recognition and plant defence responses in the establishment of AM symbioses.

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4

Ike-Izundu, Nnenna Esther. "Interaction between arbuscular mycorrhizal fungi and soil microbial populations in the rhizosphere." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1004021.

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This study examined the rehabilitation potential of AM fungi with organic and inorganic fertilisers under pot and field trial conditions as well as their interaction with rhizospheric organisms and specific functional groups. In addition, the study highlighted the effects of land-use management on AM fungal populations in soil and the mycorrhizal status of some selected plants from one of the study sites. The study focussed on two sites that differ in operational activities and these included a mined area that was to be rehabilitated and a commercial farming site. A pot trial was conducted usi

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5

Skinner, Amy. "Investigating the effect of Glomus etunicatum colonization on structure and phloem transport in roots of Eragrostis curvula (Umgeni)." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1003796.

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The symbiotic unit of an arbuscular mycorrhizal fungus and its host is able toachieve and maintain far higher inflow of nutrients than non-mycorrhizal roots. The colonization strategy of the mycobiont within the plant is intrinsic to the symbiosis with respect to both structural adaptations and nutrient exchange. An investigation into the effect of Glomus etunicatum colonization on the structure and phloem transport in Eragrostis curvula (Umgeni) allowed for greater insight into the dynamic of the symbiosis. The combined use of stains (such as Trypan Blue, Chlorazol Black, Safranin and Fast Gr

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6

Haller, Anjanette H. A. "The presence and role of arbuscular mycorrhizal fungi in coastal sand dune systems." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1003765.

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Arbuscular mycorrhizas (AM) are mutually beneficial symbiotic associations between the roots of plants and certain Zygomycetous fungi. The role of AM fungi in coastal sand dunes has been explored in many parts of the world, though little work has been conducted in South African dune systems. This study aimed to investigate the presence and extent of mycorrhizal colonisation of a coastal sand dune in South Africa. The roots of five plant species (Scaevola plumieri, Arctotheca populifolia, Ipomoea pes-caprae, Ehrharta villosa and Chrysanthemoides monilifera) were sampled along a foredune profile

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7

Dhillion, Shivcharn S. Anderson Roger C. "Mycorrhizas and mycorrhizal little bluestem grass (Schizachyrium scoparium) on burned and unburned sand prairies." Normal, Ill. Illinois State University, 1991. http://wwwlib.umi.com/cr/ilstu/fullcit?p9203026.

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Thesis (Ph. D.)--Illinois State University, 1991.<br>Title from title page screen, viewed December 6, 2005. Dissertation Committee: Roger C. Anderson (chair), Anthony E. Liberta, R. Michael Miller, Tsan Iang Chuang, Jerome R. Cain. Includes bibliographical references (leaves 104-113) and abstract. Also available in print.

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8

Boulet, Frederic. "Mycorrhizal symbiosis as a strategy for survival in ultramafic soils." University of Western Australia. Soil Science and Plant Nutrition Discipline Group, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0051.

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Ultramafic soils enriched in nickel, such as found in Australia and New Caledonia, are associated with unique, diverse and poorly known vegetation communities. Re-establishment of these highly specific ecosystems is still a challenge for Ni mining companies. Ultramafic vegetation communities are the outcome of a long evolution process resulting in their adaptation to the extreme soil conditions found on ultramafic outcrops. Mycorrhizal fungi, a very common plant symbiont, are generally thought to be beneficial to plants in other ecosystems, providing plants with phosphorus and even promoting m

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9

Scherpenisse, Dara S. "Mycorrhizae In Sagebrush-Steppe Community Restoration: Mycorrhizal Dependency Of Invasive And Native Grasses With Intraspecific And Interspecific Competition." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/394.

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Mycorrhizae have been used in restoration for decades. However, studies assessing the use of mycorrhizae in Bromus tectorum-invaded areas of the Great Basin are limited. Two greenhouse pot experiments were conducted to assess the role of mycorrhizae in sagebrush restoration. The first objective (Chapter 2) was to determine the response of Pseudoroegneria spicatum, Elymus elymoides, and B. tectorum to mycorrhizal symbiosis by altering phosphorus, density, species, presence of mycorrhizae and water levels in a 5 factor design. To assess the mycorrhizal response, a variety of morphological and ph

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10

Boling, Blake C. "Leaf elemental analysis and growth characteristics of mycorrhizal treated post oak seedlings via particle induced X-ray emission spectroscopy." Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5295/.

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Growth and element assimilation was investigated in post oak seedlings exposed to four different treatment combinations of fertilization and ectomycorrhizal inoculation. Element concentration in excised leaves was analyzed via particle induced X-ray emission spectrometry with a 1.8 MeV proton macrobeam. Mean growth was significantly different across the treatment groups as well as mean concentration of Mg, Al, S, K, Ca, Fe, Cu, and Zn. The data suggest that fertilization rather than mycorrhizal inoculation had a stronger influence on plant growth and nutrient uptake. A follow up study was cond

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11

Lansing, Jennifer Lyn. "Comparing arbuscular and ectomycorrhizal fungal communities in seven North American forests and their response to nitrogen fertilization /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.

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Thesis (Ph. D.)--University of California, Davis and San Diego State University, 2003.<br>Includes bibliographical references (leaves 142-144). Also available via the World Wide Web. (Restricted to UC campuses).

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12

Rains, Kai Coshow. "Ericoid mycorrhizas in organic substrates : distribution of ericoid mycorrhizas among epiphytes in a Costa Rican cloud forest and uptake of organic nitrogen by ericoid, ecto-, and arbuscular mycorrhizal pygmy forest plants /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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13

Asif, Mohammad. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques /." [Campbelltown, N.S.W. : The Author], 1997. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030716.094919/index.html.

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14

Cavagnaro, Timothy R. "Structure and physiology of Paris-type arbuscular mycorrhizas." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phc376.pdf.

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15

Kasiamdari, Rina Sri. "Interactions between arbuscular mycorrhizal fungi and other root-infecting fungi." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phk1887.pdf.

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16

Asif, Mohammad. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques." Thesis, [Campbelltown, N.S.W. : The Author], 1997. http://handle.uws.edu.au:8081/1959.7/510.

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The present study was firstly aimed at producing the AM fungal inocula by using soil-based and soil-less culture techniques, including the in-vitro axenic technique, and secondly to assess the infectivity and effectiveness of the inocula so produced in glasshouse and field conditions. Indigenous AM fungi from 5 different sites of New South Wales were successfully propagated and multiplied using the pot-culture and atomizing disc aeroponic culture techniques, and their infectivity was measured using the MPN bioassay method. The coarse and fine sand mix was proven to be very effective for the pr

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17

Williams, Alwyn. "On the Ecology and Restoration of Podocarpus cunninghamii in the Eastern South Island High Country." Thesis, University of Canterbury. Forestry, 2010. http://hdl.handle.net/10092/5141.

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Podocarpus cunninghamii is an endemic New Zealand conifer that, in pre-human times, formed extensive forest communities across the eastern South Island high country. Anthropogenic disturbances have reduced the distribution of Podocarpus cunninghamii communities such that they now exist mainly as small and isolated remnants within a highly modified, predominantly pastoral landscape. Very little is known of the ecology of high country Podocarpus cunninghamii communities, and without this information it is not possible to develop an ecological basis for their restoration. This thesis explores

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18

Zhang, Haoqiang. "Arbuscular mycorrhiza in Medicago truncatula." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2014. http://dx.doi.org/10.18452/16925.

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Die arbuskuläre Mykorrhiza (AM) ist eine mutualistische Symbiose, die die Phosphataufnahme und Pathogenresistenz von Pflanzen verbessern kann. In der vorliegenden Doktorarbeit wurde die Rolle der Protonen-pumpenden ATPase MtHA1 für die AM Symbiose in Medicago truncatula untersucht. In MtHA1 Mutanten konnten AM Pilze nur noch verkürzte Arbuskel ohne typische Verzweigungen ausbilden. Dies zeigte sich auch in Expressionsmustern von Genen, die für Proteine in verschiedenen Bereichen der periarbuskulären Membran kodieren. Außerdem waren AM Pilzbesiedelung, die verbesserte Nährstoffaufnahme und die

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19

Joubert, Angelique. "Investigation on selected biotic and abiotic factors in the maintenance of the "fairy circles" (barren patches) of southern Africa." Diss., Electronic thesis, 2008. http://upetd.up.ac.za/thesis/available/etd-01172008-125625/.

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20

Sommerville, David W. "Phosphorus fertilization : effects on asparagus yield, and soil microbial parameters." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80876.

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Asparagus (Asparagus officinalis) is a perennial crop well suited to grow in Quebec. Despite high demand for this crop, asparagus production is declining because of asparagus root rot disease that is caused by Fusarium spp. Phosphorus is one of the most important nutrients for the production of healthy asparagus roots that may resist infection by Fusarium. The objective of this study was to determine the effects of phosphorus (P) applications on asparagus yield and soil microbial parameters. Plots receiving 0 to 200% of the P recommendation, based on the Centre de reference en agricultu

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21

Wilkinson, Melinda M. "Changes in growth and survival by three co-occurring grass species in response to mycorrhizae, fire, and drought." Thesis, University of Hawaii at Manoa, 2003. http://proquest.umi.com/pqdweb?index=0&did=765961171&SrchMode=2&sid=6&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1209417332&clientId=23440.

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22

Pivato, Barbara. "Ecology of arbuscular mycorrhizas : interactions plant - fungal genotypes and mycorrhizas - bacteria." Dijon, 2008. http://www.theses.fr/2008DIJOS006.

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La première étape de la thèse a consisté à comparer la diversité et la structure génétique des populations de champignons mycorhiziens à arbuscules (MA) associées à quatre espèces de médiques annuelles. Les résultats obtenus montrent que l’abondance des champignons MA différait, indiquant que la structure génétique de la communauté fongique a été influencée par l’espèce végétale. La deuxième étape de ce travail visait à tester l’hypothèse selon laquelle la longue histoire évolutive entre champignons MA et plantes ne se serait pas faite de façon indépendante des bactéries. La structure génétiqu

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23

Mukasa-Mugerwa, Thomas Tendo. "The role of arbuscular mycorrhizal fungi in the biotransformation of coal and application in dump rehabilitation." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1004059.

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Fundamental processes underpinning the biotransformation of coal by fungal biocatalysts have been intensively investigated, however, limited large-scale industrial applications using such systems have been reported. The un-anticipated sporadic growth of Cynodon dactylon on the surface of un-rehabilitated discard coal dumps has been noted and this was found to be coupled with the breakdown of coal into a humic soil-like material in the top 1.5 metres of the dumps. Extensive fungal growth was observed to be associated with the Cynodon dactylon root system and examination of plant roots indicated

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24

Facelli, Evelina. "The role of mycorrhizal symbiosis in plant intraspecific competition and population structure." Title page, Contents and Abstract only, 1998. http://hdl.handle.net/2440/37773.

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The overall objective of this project was to investigate the effects of the symbiotic association of plants with vesicular - arbuscular mycorrhizal fungi on the intensity of intraspecific competition and its consequences on population structure I performed four main glasshouse experiments using a non - cultivated species, Rhodanthe chlorocephala ssp rosea, or a cultivated species, Trifolium subterraneum. I grew the plants at different plant densities, under different levels of resources ( phosphorus and / or light ), in environments with homogeneous and / or patchy distribution of phosphorus (

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25

Antoniolli, Zaida Inês. "Arbuscular mycorrhizal community in a permanent pasture and development of species-specific primers for detection and quantification of two AM fungi /." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09pha635.pdf.

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26

Smith, S. E. "Studies on Mycorrhizal fungi." Title page, contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09SD/09sds659.pdf.

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27

Lux, Heidi B. "The effects of aluminum and nitrogen on mycorrhizal and non-mycorrhizal tulip poplar." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1050.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains ix, 111 p. : ill. Vita. Includes abstract. Includes bibliographical references.

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28

Tam, Chee-fai Paul. "Mycorrhizal associations in members of Hong Kong's fagaceae /." [Hong Kong : University of Hong Kong], 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13465132.

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29

Ditschar, Bernd. "C, P and water dynamics in Mycorrhiza." Doctoral thesis, [S.l.] : [s.n.], 2005. http://webdoc.sub.gwdg.de/diss/2005/ditschar.

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30

Klugh, Katrina R. "Aluminum resistance of mycorrhizal plants." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4793.

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31

Reed, L. E. "Mycorrhizal effects in arable crops." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371057.

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32

Harso, Wahyu. "The mycorrhizal plant root system." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17574.

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Der Beitrag der arbuskulären Mykorrhizapilze zur Nährstoffaufnahme und zum Wachstum von Pflanzen ist vom Genotyp des Pilzes und der Pflanze abhängig, sowie von den Umweltbedingungen. In der vorliegenden Arbeit wurden Mykorrhizapilze unterschiedlicher Herkunft verwendet. Im Mittelpunkt der Arbeit stand die Untersuchung der Rolle der Mykorrhiza bei der Reaktion der Pflanze auf räumlich unterschiedliches Nährstoffangebot im Boden. Als Versuchspflanzen wurden Süßkartoffel und Tagetes verwendet. Für die Arbeit wurden verschiedene Modellexperimente durchgeführt. In speziell für diese Arbeit konstru

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33

Chan, Wing-kuen. "Studies of mycorrhizal associations of some trees grown in Hong Kong /." [Hong Kong : University of Hong Kong], 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12971856.

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34

Bonello, Pierluigi. "Defence responses of non-mycorrhizal and mycorrhizal seedlings of Pinus sylvestris L. to fungal pathogens." Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:83f17126-ed81-4060-9e5f-714814faada1.

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The defence mechanisms expressed in roots of Pinus sylvestris seedlings challenged with fungal pathogens were investigated, and a comparison was made between the expression of defences in non-mycorrhizal and mycorrhizal seedlings. Papillae were formed by cortical cells of non-mycorrhizal seedlings infected with Cylindrocarpon destructans. Histochemical evidence was obtained for pectic materials comprising an important polysaccharide component of these structures, and for the deposition of polyphenolic compounds also. Proton induced X-ray emission (PIXE) microanalysis indicated that insoluble c

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35

Haigh, Joanna Marie. "Dual mycorrhizal symbiosis in Salix : the role of arbuscular mycorrhizal fungi in an ectomycorrhizal genus." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341482.

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36

Wahl, Anne-Lena. "Importance des interactions entre plantes et mycorhizes dans le maintien de la productivité des écosystèmes pastoraux montagnards soumis à des forçages climatiques." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAS038/document.

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Bien que les champignons mycorhiziens arbusculaires (AMF) soient présents des habitats collinaires aux habitats alpins, les recherches sur leur rôle dans l’écosystème montagnard sont encore incomplètes. Les objectifs de cette thèse sont d’analyser l’écologie et le fonctionnement des AMF ainsi que leur réponse au changement global dans les écosystèmes montagnards. Nous tentons de répondre aux questions de recherche suivantes : quels sont les effets de l’altitude sur les AMF indépendamment des effets des autres gradients et de la relation AMF-plante hôte ? Quelles relations de facilitation se dé

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37

França, Soraya de Carvalho. "Comunidades de fungos micorrízicos arbusculares nos manejos convencional e orgânico de citros e suas interações com Phytophthora parasitica." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-14072004-152254/.

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Agricultores e técnicos envolvidos na citricultura orgânica procuram desenvolver sistemas de produção com maior atividade microbiana no solo. Dessa maneira, esperam obter benefícios dos processos que ocorrem no solo, entre eles, o controle natural de pragas e doenças. Porém, são poucos os estudos sobre a influência desse tipo de manejo sobre a microbiota do solo, em especial sobre os fungos micorrízicos arbusculares (FMAs) e o patógeno Phytophthora parasitica. Os objetivos dessa tese foram: avaliar a colonização micorrízica e conhecer a diversidade de FMAs nos sistemas de produção convencional

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38

Abualghaith, Abdulaziz. "Carbon and nitrogen metabolisn in orchid-mycorrhiza associations." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604555.

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Members of the Orchidales produce dust seeds so lacking in nutrient and carbon reserves that they are dependent upon appropriate fungal partners to supply the essential additional carbon and nutrients required for successful establishment in nature. These plants are thus initially mycoheterotrophic before they normally go on to develop green leaves and become autotrophic as adults. However, at least 210 species of orchid remain fully mycoheterotrophic into adulthood. The metabolic pathways involved in the nitrogen and carbon fluxes from fungus-to -plant in mycoheteratrophic are still poorly un

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39

Liu, Yi. "Calcium-related fungal genes implicated in arbuscular mycorrhiza." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00985826.

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Fluctuations in intracellular (Ca2+) calcium levels generate signaling events and regulate different cellular processes. Whilst the implication of Ca2+ in plant cell responses during arbuscular mycorrhiza (AM) interactions is well documented, nothing is known about the regulation or role of this secondary meesenger in the fungal symbiont. The molecular basis of fungal calcium homeostasis in the AM symbiosis was analyzed by investigating the expression of Ca2+-related fungal genes. In a first study, G. mosseae genes putatively encoding a MAP3k-like protein kinase (Gm2) and a P-type ATPase (Gm15

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40

Guillotin, Bruno. "Spatiotemporal regulation of the arbuscular mycorrhiza symbiosis establishment." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30156/document.

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La symbiose mycorhizienne à arbuscule est une interaction bénéfique entre les champignons du phylum Glomeromycota et près de 80% des espèces de plantes terrestres. Elle est caractérisée par un échange réciproque de nutriments dans lequel le champignon fournit des sels minéraux à la plante en échange de sucres issus de la photosynthèse. Cependant, cette "alimentation" du champignon au cours de la symbiose représente un coût carbone important pour la plante. Ainsi, les plantes doivent strictement maitriser le développement des champignons symbiotiques dans les racines. Ce contrôle est appelé aut

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41

Stockinger, Herbert. "DNA barcoding of arbuscular mycorrhizal fungi." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-114870.

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42

Rewcastle, Joanne. "Plant protection using arbuscular mycorrhizal fungi." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/27261.

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The interaction between several species of arbuscular mycorrhizal fungi, micropropagated strawberry plants and <i>Phytophthora fragariae, </i>the pathogen that causes red stele disease of strawberry plants, was investigated. The optimum temperature for germination of zoospore cysts of <i>P. fragariae in vitro </i>was found to be 15°C, and growth of the emerging germ tube was significantly orientated towards the strawberry root tip. Cyst germination was reduced in the presence of a mycorrhizal strawberry root. Elsanta was more susceptible to <i>P. fragariae </i>than the cultivar Rhapsody. A low

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Monreal, Marcia Amelia. "Molecular identification of ericoid mycorrhizal fungi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25119.pdf.

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Stewart, Lynda Irene. "Phosphorus effects on arbuscular mycorrhizal fungi." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102729.

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Two field studies were conducted to assess the potential benefit of arbuscular mycorrhizal (AM) inoculation of elite strawberry plants on plant multiplication, and fruit yield, under typical nursery conditions, in particular soils classified as excessively rich in P. To study plant productivity, five commercially in vitro propagated elite strawberry cultivars ('Chambly', 'Glooscap', 'Joliette', 'Kent', and 'Sweet Charlie') were not inoculated with AM fungi or were inoculated with either a single species (Glomus intraradices), or a mixture of species (G. intraradices, Glomus mosseae, and Glomus

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Misbahuzzaman, Khaled. "Mycorrhizal associations of Eucalyptus camaldulensis Dehnh." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/15403.

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The species <i>Eucalyptus camaldulensis </i>Dehnh. is of great importance in Mediterranean, sub-tropical and tropical countries for the production of domestic products, such as poles, posts timber and fuelwood. Some members of the genus <i>Eucalyptus</i> are reported to form both arbuscular- (AM) and ecto-mycorrhizas (EM). The main objectives of this study were to look at the host-symbiont interactions between <i>E. Camaldulensis</i> and AM and EM fungi, and interactions between the two mycorrhizal types. The initial aim of the project was to determine suitable experimental conditions for the

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Mathieu, Stephanie. "The Genetics of Arbuscular Mycorrhizal Fungi." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42770.

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Sexual reproduction is an important process amongst eukaryotic organisms, with one function being to maintain genetic variation. The idea that complex eukaryotic species can persist for millions of years in the absence of sex defies fundamental evolutionary dogma, yet a group of organisms known as ancient asexuals were thought to have evolved clonally under deep evolutionary time. Prominent among these are the arbuscular mycorrhizal fungi (AMF), which are obligate plant symbionts that colonize the root cells of plants and extend their hyphae into the soil assisting the plant in acquiring key n

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Monteiro, Giselle Gomes. "Desenvolvimento de micorrizas arbusculares em mutantes hormonais de tomateiro (Lycopersicon esculentum cv Micro-Tom)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-17032011-104351/.

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Os hormônios vegetais etileno e ABA são possíveis reguladores chave do desenvolvimento das micorrizas arbusculares (MAs). O primeiro objetivo deste trabalho foi avaliar o desenvolvimento da MA em mutantes superprodutores e insensíveis ao etileno (epinastic e Never ripe, respectivamente) e verificar se enzimas relacionadas ao sistema de defesa vegetal são reguladas diferencialmente pelo etileno durante o desenvolvimento da simbiose A colonização de raízes de epinastic (epi) por G. clarum foi significativamente reduzida quando comparada com Micro-Tom (MT), além disso, a funcionalidade da simbios

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Eng, Lily. "Biological control of root-knot nematodes (Meloidogyne species) on black pepper (Piper nigrum L.) in Sarawak." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367747.

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Groth, Martin. "Genetic Analysis of Arbuscular Mycorrhiza Development in Lotus japonicus." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-133396.

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Musandu, Amos Omonge Absalom. "Vesicular-arbuscular mycorrhiza and phosphorus availability in Kenyan soils." Thesis, Imperial College London, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416441.

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