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Dissertations / Theses on the topic 'Mycorrhizal hosts'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Saravesi, K. (Karita). "Mycorrhizal responses to defoliation of woody hosts." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514288265.

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Abstract Mycorrhizal fungi are important contributors to the functioning of boreal forests, since they act in the bilateral carbon and nutrient transport between above- and belowground parts of the ecosystem. In ectomycorrhizal (ECM) symbiosis of woody host plants, both fungal and plant partners depend on resources provided by the other. A single tree may simultaneously host several ECM fungal partners, which greatly enhance the host's nutrient uptake. At the same time nearly 20% of host primary production is allocated to mycorrhizal fungi. Although fungi depend on host-derived carbon, it is

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2

Scharnagl, Klara. "The Effects of Arbuscular Mycorrhizal Fungi on four Legume Hosts in South Florida Pine Rockland Soils." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/922.

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This study addressed the effects of salinity and pot size on the interaction between leguminous plant hosts and arbuscular mycorrhizal fungi in four pine rockland soils using a shade house trap-plant experiment. Little is known about the belowground diversity of pine rocklands and the interactions between aboveground and belowground biota – an increased understanding of these interactions could lead to improved land management decisions, conservation and restoration efforts. Following twelve weeks of growth, plants were measured for root and shoot dry biomass and percent colonization by arbusc

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3

Al-Nahidh, S. I. "Host-endophyte compatibility in mycorrhizal crop plants." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354035.

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4

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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5

Ridsdale, Carmen Jane. "Interactions of arbuscular mycorrhizal fungi and spore-associated bacteria." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1018269.

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Arbuscular mycorrhizal (AM) fungi are naturally occurring in roots of terrestrial plants. AM fungi are capable of benefiting the host plant through various mechanisms such as enhanced nutrient supply, alleviation of environmental stress and inhibition of plant fungal pathogens. AM fungal spore-associated bacteria have been previously isolated and shown to have plant growthpromoting (PGP) abilities by several authors. Some bacterial isolates are able to promote AM fungal colonisation of host plants and are known to be mycorrhizal helper bacteria (MHB). This study focused on the isolation of AM

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6

Abourghiba, Taher Yonis. "Comparative analysis of the impacts of arbuscular mycorrhizal fungi on 'host' and 'non-host' plants." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422182.

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7

Gonzalez, Jonathan. "Investigations into host-specific interactions and local adaptation in the mycorrhizal symbiosis." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/324.

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Mycorrhizal fungi are soil-borne organisms that form symbiotic associations with the majority of land plants. These fungi gather and exchange mineral nutrients with plants for photosynthetically derived carbohydrates. Mycorrhizal fungi can also confer other benefits onto plants, e.g. defense against pathogens, improved water relations, tolerance to heavy metal toxicity and herbivory. The influence of mycorrhizal fungi on plant mineral nutrition and response to stress suggests that these organisms may have a role to play sustainable agriculture as well as in bioremediation and ecosystem restora

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8

Suetsugu, Kenji. "Diverse interactions of heterotrophic plants with their hosts, pollinators and seed dispersers." Kyoto University, 2014. http://hdl.handle.net/2433/192205.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第18605号<br>人博第701号<br>新制||人||167(附属図書館)<br>26||人博||701(吉田南総合図書館)<br>31505<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授加藤眞, 教授市岡孝朗, 教授瀬戸口浩彰, 教授宮本嘉久, 教授新宮一成<br>学位規則第4条第1項該当

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9

Goh, Dane. "Exploring the Potential for Novel Ri T-DNA Transformed Roots to Cultivate Arbuscular Mycorrhizal Fungi." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42412.

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Arbuscular mycorrhizal (AM) fungi are key soil symbiotic microorganisms, intensively studied for their roles in improving plant fitness and their ubiquity in terrestrial ecosystems. Research on AM fungi is difficult because their obligate biotrophic nature makes it impossible to culture them in the absence of a host. Over the last three decades, Ri T-DNA transformed roots have been the gold standard to study AM fungi under in vitro conditions. However, only two host plant species (Daucus carota and Cichorium intybus) have been routinely used to in vitro propagate less than 5% of the known AM f

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10

Ahmad, Norani. "Mycorrhizas in relation to Malaysian forest practice : a study of infection, inoculum and host response." Thesis, University of Aberdeen, 1990. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU548807.

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Surveys on the status of mycorrhizal infection and VAM propagules were carried out in 3 representative forest areas of Jengka in the Lowland Forest of Malaysia. VAM spore numbers found in these forest soils were low and well below those recorded in other tropical soils. However, levels of root infection in soil cores and infections in individual plant species were comparatively high. The assessment also confirmed the taxonomic dominance of VAM tree species in Malaysian forest. Regardless of the contrast between spore numbers and mycorrhizal root colonisation, evidence showed that current fores

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11

Jones, Thomas Michael. "Integrating above and belowground components of biodiversity across spatial scales : the role of host plants in the distribution of Arbuscular Mycorrhizal fungi." Thesis, University of Essex, 2015. http://repository.essex.ac.uk/17086/.

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The Arbuscular Mycorrhizal (AM) fungi are a group of obligate plant root endosymbionts, which form associations with an estimated two thirds of terrestrial plant species. Their extra-radical mycelium extends throughout the soil and absorbs nutrients that are transferred to their host plant in exchange for a purely phytogenic carbon supply. Due to their ubiquity and their functional importance, they are the subject of much research into their community ecology, yet much is still unknown. For instance: whether or not AM fungi display preference for certain host plant species; how environmental h

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12

Ntshakaza, Pamella. "Host relations of Kalaharituber pfeilii (Henn.) Trappe & Kagan-Zur." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1020888.

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Kalaharituber pfeilii (Henn.) Trappe & Kagan-Zur commonly known as the “Kalahari truffle” is a desert truffle species identified from the Kalahari region of southern Africa. Two other species, Eremiomyces echinulatus (Trappe & Marasas) Trappe & Kagan-Zur and Mattirolomyces austroafricanus (Trappe & Marasas) Trappe & Kovacs are also known to occur in other parts of southern Africa. Truffles are hypogeous fruiting bodies of Ascomycetes, important to humans for their nutritional value and medicinal characteristics. These truffles are known as desert truffles as they prefer to occur under arid or

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13

Montanez, Massa Adriana. "Spatial distribution and diversity of the Arbuscular Mycorrhizal Fungal community in an experimental clover (Trifolium repens L.) Mesocosm : effects of host plant and mechanical disturbance." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325198.

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14

Vannier, Nathan. "The clonal plant microbiota : assembly rules, heritability and influence on host phenotype." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1B027/document.

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Les plantes vivent en association avec une grande diversité de microorganismes qui forment son microbiota. Ce microbiote fournit des fonctions clés qui influencent tous les aspects de la vie d'une plante, de l'établissement à la croissance jusqu'à la production. Cette thèse a pour intention de déterminer les règlent d'assemblage du microbiote et ses conséquences pour le phénotypel l'adaptation et l'évolution des plantes. Pour atteindre cet objectif nous avont utilisé différentes approches expérimentales comprenant des plantes clonales comme organismes modèles ainsi que des mésocosmes prairiaux

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15

Adomas, Aleksandra. "Transcript profiling of the Heterobasidion-conifer pathosystem : host and pathogen responses to biotic stress /." Uppsala : Dept. of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200735.pdf.

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16

Le, Marquer Morgane. "Etude de peptides sécrétés par le champignon mycorhizien à arbuscules Rhizophagus irregularis." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30267.

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La symbiose mycorhizienne à arbuscules (MA) est une association bénéfique établie entre les membres d'un ancien sous-phylum de champignons, les Gloméromycètes, et les racines de la majorité des plantes terrestres. Les champignons MA procurent de l'eau et des minéraux (azote et phosphore principalement) à leur plante hôte et obtiennent de cette dernière des molécules carbonées sous forme d'hexoses et de lipides. Des études récentes ont montré que certaines protéines sécrétées par les champignons MA peuvent être des régulateurs importants de l'association (Kloppholz et al., 2011 ; Tsuzuki et al.

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17

Hsu, Sheng-Yuan, and 徐昇圓. "Study on Potential Hosts of Monotropoid Mycorrhizal Plants in Taiwan." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/55103438346618755389.

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碩士<br>國立中興大學<br>生命科學系<br>91<br>The presumption that myco-heterotrophic plants obtain carbon source from autotrophic ones has been proved to be true by many experiments. A group of myco-heterotrophic plants contains special mycorrhizal structures: fungal mantle, Hartig net and fungal peg, thus, their mycorrhizae are called monotropoid mycorrhiza. We focused on the monotropoid mycorrhizal plants in Taiwan: Monotropa hypopithys, Cheilotheca humilis and C. marcrocarpa, and utilized LM and SEM to study plant morphology and structures of mycorrhizae. In addition, for finding out their potential host

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18

Phillips, Wendy S. "Drivers of arbuscular mycorrhizal fungal community composition in roots : hosts, neighbors, and environment." Thesis, 2012. http://hdl.handle.net/1957/34446.

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The vast majority of terrestrial plant species live in symbiosis with arbuscular mycorrhizal fungi (AMF). AMF and plants live in complex networks, with roots of individual plants hosting multiple AMF, and single AMF colonizing multiple plants concurrently. Through the exchange of resources, the two partners of this symbiosis can have great effects on each other, effects which can ripple through both communities. What determines the patterns of associations between the partners is still largely unknown. In this dissertation, I examine a variety of factors, and in particular host identity, that

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19

Sharda, Jori N. Koide Roger T. "Root anatomical mechanisms involved in host plant control of arbuscular mycorrhizal colonization." 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-4092/index.html.

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20

Grace, Emily Jane. "Functional characterisation of phosphorus uptake pathways in a non-responsive arbuscular mycorrhizal host." Thesis, 2008. http://hdl.handle.net/2440/58644.

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AM plants acquire Pi via two pathways; the direct uptake pathway via plant roots and the AM pathway via external fungal hyphae and colonised cortical cells. It has been assumed that these two pathways are additive and therefore in non-responsive plants the AM pathway is often considered to be non-functional. However, data from ³²P uptake studies indicates that the AM pathway is functional in many non-responsive symbioses and in some instances supplies the majority of plant P. In recent years the high-affinity Pi transporters involved in both direct and AM Pi uptake pathways have been identif

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21

Grace, Emily Jane. "Functional characterisation of phosphorus uptake pathways in a non-responsive arbuscular mycorrhizal host." 2008. http://hdl.handle.net/2440/58644.

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AM plants acquire Pi via two pathways; the direct uptake pathway via plant roots and the AM pathway via external fungal hyphae and colonised cortical cells. It has been assumed that these two pathways are additive and therefore in non-responsive plants the AM pathway is often considered to be non-functional. However, data from ³²P uptake studies indicates that the AM pathway is functional in many non-responsive symbioses and in some instances supplies the majority of plant P. In recent years the high-affinity Pi transporters involved in both direct and AM Pi uptake pathways have been identifie

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22

Wang, Meng-Yu, and 王孟宇. "Effects of Biochar on the Sporulation of Arbuscular Mycorrhizal Fungiand Growth of Host-plant." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/83641291778802264631.

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碩士<br>國立屏東科技大學<br>森林系所<br>101<br>Biochar used as a soil amender is an emerging and effective soil improvement mathod, but there are few studies on the effects of biochar soil on arbuscular mycorrhizal fungi (AMF). The issues discussed include (1) the effects of varying pyrolysis temperatures on rice husk biochar (RHC) and acacia wood biochar (AWC) and the ratio of biochar: silicon sand on chemical properties and nutrients variation; (2) the effects of varying pyrolysis temperature of biochar and biochar: silicon sand ratio on Lepturus repens and Acacia confusa seedling growth, biomass, and pla

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23

Manjunath, Aswathanarayana Rao. "Host related determinants of vesicular-arbuscular mycorrhizal dependency in selected species of Leucaena and Sesbania." Thesis, 1989. http://hdl.handle.net/10125/9254.

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24

Reithmeier, Laura. "Facilitation of Ectomycorrhizal Colonization of Picea mariana by Alternate Host Plants above Treeline." 2011. http://hdl.handle.net/10222/14144.

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The availability of ectomycorrhizal fungi (ECMF) to conifer seedlings above the present treeline is likely related to the presence of alternate ECMF host plants, including Betula glandulosa, Arctostaphylos alpina, and Salix herbacea. The ECMF inoculum potential of soils from above treeline that either supported (host) or lacked (non-host) an alternate host plant was assessed by growing Picea mariana as ECMF bait seedlings in field-collected soils under controlled conditions. Seedlings became colonized when grown in both host and non-host soils, but ECMF percent colonization, richness, and dive

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25

Bunn, Rebecca Anne. "Arbuscular mycorrhizae in Yellowstone National Park thermal soils host plant, fungal inoculum, soil pH, and elevated temperature effects on symbiosis function /." 2004. http://etd.lib.montana.edu/etd/2004/bunn/BunnR0805.pdf.

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26

Akrimi, Amall. "Tocopherols (vitamin E) production and profile of mycorrhizal fungi before and after in vitro elicitation by host plant roots." Master's thesis, 2018. http://hdl.handle.net/10198/20486.

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Dupla diplomação com a Université Libre de Tunis<br>Mycorrhizal fungi are symbiotic organisms that establish associations with the root system of plants. This special form of living implicates a recognizing process where chemical signals are involved, and oxidative stress mechanisms are most probably activated and overcome. Thus, during this process there is the release of compounds from the secondary metabolism, characterized by their bioactive potential and, therefore, compounds of interest. Tocopherols, vitamin E vitamers, are some of the molecules released during the oxidative stress proc

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27

Gowland, Kelli Maria. "Investigations into the phorophyte and fungal relationships of three epiphytic Aeridinae orchid species in southeastern Australia." Phd thesis, 2008. http://hdl.handle.net/1885/150425.

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28

Shrivastava, Gitika. "Production and Roles of Volatile Secondary Metabolites in Interactions of the Host Plant Tomato (Solanum lycopersicum L.) with Other Organisms at Multi-Trophic Levels." 2011. http://trace.tennessee.edu/utk_graddiss/1226.

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Tomato (Solanum lycopersicum L.) produces an array of volatile secondary metabolites that act as constitutive and induced defenses against a variety of insect pests and diseases. We studied the effect of beneficial microorganisms, an arbuscular mycorrhiza fungus (AM), Glomus intraradices, an entomopathogenic fungus (Bb), Beauveria bassiana and a combination of both (AM+Bb), as well as, pests, such as rootknot nematode (RKN) (Meloidogyne incognita) and beet armyworm (BAW) (Spodoptera exiguae H.) on the production of volatile compounds in the leaves and roots of tomato. Benzyl alcohol, 3-hexenoi

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29

Balaji, Boovaraghan. "Use of Ri T-DNA transformed roots of pea mutants and a non-host (lupin) in studying precolonization and colonization stages of the arbuscular mycorrhizal (AM) symbiosis /." 1996. http://proquest.umi.com/pqdweb?did=736576141&sid=12&Fmt=2&clientId=9268&RQT=309&VName=PQD.

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30

"Association of chickpea with soil fungi: a comparison of cultivars." Thesis, 2014. http://hdl.handle.net/10388/ETD-2014-11-1848.

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Certain crop plants are susceptible to pathogens or unable to develop efficient microbial symbioses. These crops adversely impact soil biological quality with consequences on plant health and productivity of cropping systems. Chickpea is a rotational pulse crop with two types: kabuli and desi, and several cultivars. Cultivation of chickpea has inconsistent effects on soil microbial communities and subsequent wheat crops. I conducted field studies and used high throughput molecular analyses to explore the variations among chickpeas to identify cultivars developing fungal communities that are co

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31

Reich, Marlis. "Nutzung molekularer Hochdurchsatz-Verfahren zur schnellen und eingehenden Artenbestimmung von Pilzgesellschaften." Doctoral thesis, 2009. http://hdl.handle.net/11858/00-1735-0000-0006-AD73-8.

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