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Dissertations / Theses on the topic 'Mycorrhizal Associations'

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Published: 7 June 2025

Last updated: 2 August 2025

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1

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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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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3

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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4

Mulowska, Z. "The effect of SOâ†2 on mycorrhizal associations." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239846.

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5

Tam, Chee-fai Paul, and 譚志輝. "Mycorrhizal associations in members of Hong Kong's Fagaceae." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1993. http://hub.hku.hk/bib/B31233223.

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6

Winther, Jennifer. "Arbuscular mycorrhizal associations in mycoheterotrophic ferns and lycopods." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3303816.

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Thesis (Ph.D.)--University of Colorado at Boulder, 2007.<br>Source: Dissertation Abstracts International, Volume: 69-03, Section: B, page: 1407. Adviser: William E. Friedman. Includes supplementary digital materials.

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7

Chan, Wing-kuen, and 陳永娟. "Studies of mycorrhizal associations of some trees grown in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31232140.

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8

Cloete, Karen Jacqueline. "Physiological effects of indigenous arbuscular mycorrhizal associations on the sclerophyll Agathosma betulina (Berg.) Pillans." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/16600.

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Thesis (MSc)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: The Mountain Fynbos biome, a division of the Cape Floristic Region (CFR), is home to round-leafed Buchu [Agathosma betulina (Berg.) Pillans], one of South Africa’s best-known endangered herbal medicinal plants. Agathosma betulina is renowned as a traditional additive to brandy or tea, which is used for the treatment of a myriad of ailments. In its natural habitat, A. betulina thrives on mountain slopes in acid and highly leached gravelly soils, with a low base saturation and low concentrations of organic matter. To adap

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9

Kennedy, Aaron H. "Phylogeny and Evolution of Mycorrhizal Associations in the Myco-heterotrophic Hexalectris Raf. (Orchidaceae : Epidendroideae)." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1232724178.

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10

Louro, Rogério. "Terfezia diversity in southern Portugal and their mycorrhizal associations with Cistus L.: a study towards the viable production of desert truffles on acid soils." Doctoral thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/28085.

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Desert truffles are edible hypogenous ascocarps produced by Ascomycota (Pezizaceae) fungi characteristic of arid and semi-arid zones. Many of these desert truffle species are nowadays considered as valued Non-Wood Forest Products (NWFPs) endemic to the Mediterranean basin where their ascocarps, rich in proteins and poor in carbohydrates and lipids, constitute a potentially important food source for rural populations. They also represent a key component of the mycological flora on arid and semi-arid habitats, acting directly as symbiotic partners of diverse host plants, mainly Cistaceae, and in

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11

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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12

Quirk, Joe. "Effects of evolutionary advances in plant-mycorrhiza associations on biological weathering." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555129.

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The evolution of Earth's first forests during the Devonian and expansion of angiosperrns at the expense of gymnosperms in the Cretaceous is thought to have accelerated the dissolution of continental Ca-Mg silicates. thereby enhancing long-term atmospheric CO2 draw-down and global climatic cooling. However, this paradigm of plant-driven atmospheric CO2 decline overlooks the role of eo-evolving arbuscular mycorrhizal (AM) soil fungi that have formed symbiotic partnerships with plants since the dawn of terrestrial plant life. and ectomycorrhizal (ECM) fungi whose evolutionary origins date from th

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13

Mursidawati, Sofi. "Mycorrhizal association, propagation and conservation of the myco-heterotrophic orchid Rhizanthella gardneri." University of Western Australia. School of Earth and Geographical Sciences, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0014.

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Many orchids require mycorrhizal symbioses with fungi for their development and survival. Rhizanthella gardneri the Western Australian underground orchid is associated with the companion plant Melaleuca uncinata and its ectomycorrhizal fungus symbiont. Much less is known about the habitat requirements of its sister species, R. slateri, which occurs in Eastern Australia. The absence of chlorophyll from Rhizanthella gardneri and R. slateri results in total dependency on associations with fungal symbionts. Many ecological and biological aspects of these fascinating orchids remained poorly known,

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14

Kabir, Md Zahangir. "Dynamics of mycorrhizal association in corn (Zea mays L.) : influence of tillage and manure." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0006/NQ30305.pdf.

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15

Holland, Taylor Craig. "Vineyard soil communities and arbuscular mycorrhizal fungi associating with grapevine roots in response to irrigation frequency." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44234.

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Arbuscular mycorrhizal fungi form a root symbiosis with most plants and are known to benefit plants in a variety of ways. These organisms could be valuable in agricultural settings, leading to increased crop production and quality. For instance, the economically important Vitis vinifera is a highly mycorrhizal plant, dependent on the fungi for tolerating harsh growing conditions. Deficit irrigation is a viticultural practice that enables V. vinifera to be grown in arid climates where water resources are scarce, but how this management practice affects soil communities is not understood. There

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16

Asfaw, Zebene. "Tree species diversity, topsoil conditions and arbuscular mycorrhizal association in the Sidama traditional agroforestry land use, southern Ethiopia /." Uppsala : Dept. of Forest Management and Products, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s263-ab.html.

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17

McGreevy, Sonia. "Indigenous arbuscular mycorrhizal fungi of a tropical agroforestry system and their association with the intercrop, Zea mays L." Thesis, University of Edinburgh, 1996. http://hdl.handle.net/1842/11124.

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<I>Zea mays</I> L. is an important food crop and common intercrop species grown in semi-arid agroforestry systems in Kenya, East Africa. A preliminary field study showed that AMF spores occurred in particularly high number in this system compared with that reported for other less disturbed ecosystems. The same spore types occurred in tree and alley soil, however spore number and composition were variable, between host species, in fallow and cropped areas of the system and between wet and dry seasons. At the end of the dry season (February, 1991), fallow areas had significantly higher spore num

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18

Marques, Anderson Cesar Ramos. "FIXAÇÃO BIOLÓGICA DE NITROGÊNIO E MICORRÍZAÇÃO EM GRAMÍNEAS DOS CAMPOS SULINOS." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/4869.

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Empresa Brasileira de Pesquisa Agropecuária<br>The knowledge of the level of association that occurs between diazotrophic bacteria and fungi arbusculares mycorrhizae (AMF) in grassland ecosystems may be important for the understanding of the changes caused by the addition of fertilizers containing phosphorus (P) and nitrogen (N), in the production and botanical composition of natural pastures. The objective of this study was to evaluate. (a) the occurrence of three genera of diazotrophic bacterial in the root system under fertilization with N and P, and determine the contribution of N via BNF,

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19

Olsen, Margaret Anne. "How does dual-mycorrhizal association affect the ecological success of kanuka (Kunzea ericoides) across the South Island of New Zealand?" Thesis, University of Canterbury. School of Biological Sciences, 2015. http://hdl.handle.net/10092/10806.

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In this thesis I investigated the mutualism between Kunzea ericoides (kanuka) and two groups of soil fungi, ectomycorrhizae (ECM) and arbuscular mycorrhizae (AMF). Mycorrhizal mutualisms, which are considered globally ubiquitous, are poorly understood over changing abiotic gradients. A field survey of K. ericoides assessed how the relationship with the soil fungi varieties altered over a hydrologic gradient. Arbuscular mycorrhizal colonisation was significantly improved by increasing rainfall levels and amount of surrounding kanuka, and negatively affected by increasing altitude. Ectomycor

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20

Cavender, Nicole D. "Genetic variation of Big Bluestem (Andropogon Gerardii) and its association with Arbuscular Mycorrhizal Fungi : implications for prairie restoration and reintroduction /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486400446372186.

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21

Reiter, Noushka Hedy, and noushka reiter@dse vic gov au. "Borya mirabilis steps in the recovery of a critically endangered Australian native plant." RMIT University. Applied Sciences, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090227.160625.

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Borya mirabilis is one of the world's most critically endangered plants. The research in this thesis has illuminated key aspects of: its reproductive biology; interspecies and intraspecies molecular relationships, mycorrhizal status, tissue culture potential and disease threats. Each of these aspects has fundamental management implications for the active management of B. mirabilis. Floral observations of B. mirabilis and related species affirmed the uniqueness of the Boryaceae amongst the Asparagales. B. mirabilis had an unusually high number of floral abnormalities compared with other sp

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22

Kauppinen, M. (Miia). "Context dependent variation in associations between grasses and fungal symbionts." Doctoral thesis, Oulun yliopisto, 2017. http://urn.fi/urn:isbn:9789526216287.

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Abstract Most plants form symbiotic associations with various fungi in natural ecosystems. Traditionally, many of these associations are viewed as mutually beneficial, but recent studies show that symbiotic interactions can be complex and labile. I studied the variability of interactions between grasses and fungi, using root-associated fungi and foliar endophytes in grasses as study systems. First, I studied experimentally how root-associated fungi colonize their host grasses in different natural and artificial conditions. I then investigated experimentally how foliar endophytes affect their h

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23

Grellier, Brigitte. "Approche biotechnologique des mycorhizes : culture in vitro et physiologie des associations ectomycorhiziennes." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37605677t.

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24

Arifin, Arild. "Diversity of Tulasnellaceae mycorrhizal associations of Australian terrestrial orchids." Phd thesis, 2020. http://hdl.handle.net/1885/219059.

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Orchid mycorrhizal fungi (OMF) is essential for orchid seed germination and survival due to the tiny size and lack of endosperm of orchid seeds. Studying the fungal relationships in orchids are important as they provide insights into understanding fungal biodiversity and ecology. My first chapter is a study of the OMF associations in the Australian Cryptostylis orchids, which are sexually deceptive with several unusual features in relation to pollinator sharing and a mix of evergreen and leafless species. This chapter investigates the diversity of Tulasnella in Cryptostylis, finding that the f

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25

Oktalira, Fitria. "Diversity of Serendipitaceae Mycorrhizal Associations of Australian Terrestrial Orchids." Phd thesis, 2021. http://hdl.handle.net/1885/236612.

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Mycorrhizal fungi play an essential role in the orchid establishment. This study will focus on four Australian orchid genera which form orchid mycorrhizal associations with the fungus Serendipita. The expected outcome of this thesis is to construct a continent-wide phylogeny and establish a biogeographical pattern of distribution for Serendipita in Australia. In chapter one (published in Fungal Ecology), I focused on fungal symbionts in two Caladenia species-pair contrasts, each pairing one widely distributed species with a closely-related species of narrow distribution. Across four orchid spe

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26

Carvalho, Pedro Daniel Santos de. "Studies of mycorrhizal associations in Cistaceae from a maritime pine forest: ecological and biotechnological approach." Master's thesis, 2016. http://hdl.handle.net/10316/32174.

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Dissertação de Mestrado em Biodiversidade e Biotecnologia Vegetal, apresentada ao Departamento de Ciências da Vida da Faculdade de Ciências da Universidade de Coimbra.<br>Este trabalho foi desenvolvido em três capítulos com três diferentes, mas complementares, âmbitos de trabalho: crescimento fúngico, estudo de associações micorrízicas em campo e síntese de micorrizas. No primeiro capítulo descrevemos o estabelecimento de culturas de micélio de quatro fungos, duas espécies micorrízicas (Lactarius deliciosus e Tricholoma portentosum) e duas espécies saprófitas (Agaricus bisporus e Macrolepiota

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27

Keane, Kevin D. "The separate and combined effects of ozone and acidic precipitation on paper birch seedlings (Betula papyrifera Marsh.) and their mycorrhizal associations /." 1987. https://scholarworks.umass.edu/theses/3400.

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28

Niu, Chih-hao. "Association of nitrogen-fixing bacteria with ectomycorrhizae in Douglas-fir /." 1987. http://hdl.handle.net/1957/11340.

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29

Li, Hoi-Tung, and 李鎧彤. "Study of hypogeous fungi and their mycorrhizal association with Pinaceae in Taiwan." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/733em2.

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碩士<br>國立臺灣大學<br>森林環境暨資源學研究所<br>105<br>Study of hypogeous fungi in Taiwan is scarce and insufficient, especially when comparing with epigeous mushrooms. The objective of this study is to investigate the association of hypogeous fungi with Pinaceae hosts, in both natural forest and plantation in Taiwan. Through morphological, molecular and phylogenetic analysis, sporocarp and mycorrhiza would be identified in order to study the diversity of hypogeous fungi in Taiwan. In June 2016 to May 2017, 9 locations with 6 endemic Pinaceae species were investigated. 4 new species, including Tuber piceanum W

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30

Fathima, P. S. "Influence of various agrochemicals and inoculation techniques on va-mycorrhizal association in Mulberry." Thesis, 1997. http://hdl.handle.net/2009/1330.

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31

Welsh, Catherine M. "Organic crop management can decrease labile soil P and promote mycorrhizal association of crops." 2007. http://hdl.handle.net/1993/312.

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A concern with organic farming is for the depletion of soil phosphorus. The objectives of this study were to determine which organic management systems deplete soil phosphorus and whether arbuscular mycorrhizal fungi (AMF) could assist crops in taking up phosphorus in these systems. The research site was a 14 year-old study at Glenlea, Manitoba, having 3 different 4-year rotations under organic and conventional management: forage-grain ± manure-compost, grain-only, and a restored tall grass prairie. The modified Hedley procedure revealed organic systems to have lower concentrations of labile p

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32

"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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