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Dissertations / Theses on the topic 'Mycorrhizal fungi. Mycorrhizas. Soils'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

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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2

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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3

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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4

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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5

Sulistyowati, Emy. "Development of molecular probes to distinguish vesicular-arbuscular mycorrhizal fungi." Title page, Summary and Contents only, 1995. http://web4.library.adelaide.edu.au/theses/09A/09as949.pdf.

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Bibliography: leaves 71-79. Almost 80 percent of plant taxa develop vesicular-arbuscular mycorrhizae (VAM) which are symbiotic associations between plant roots and soil fungi. The fungi are biotropic-obligate symbionts. Identification of VAM fungi is currently based on spore characteristics. Molecular techniques provide tools for better and more accurate identification of species, as well as for the examination of genetic variability occuring between individual spores of a single species.

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6

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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7

Pretorius, Travers. "Bioremediation of Contaminated Soils by Echinacea purpurea and Arbuscular Mycorrhizal Fungi." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32500.

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As a potential bioremediation system for contaminated soils, I evaluated the use of an arbuscular mycorrhizal (AM) fungus, Glomus intraradices on roots and shoots uptake of polycyclic aromatic hydrocarbons (PAHs), alkyl PAHs, and toxic metals in Echinacea purpurea, in using a controlled 20-week greenhouse study and a complimentary 2-year field study. E. purpurea seeds were either inoculated with the mycorrhizal fungus (AM) or not inoculated (non-AM) and grown in soil provided by the National Capital Commission (NCC) that have known contamination. In the greenhouse study, AM inoculation increas

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8

Fleming, Kelly M. "Functional diversity and life history traits of arbuscular mycorrhizal fungi in disturbed soils." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1191.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains viii, 63 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.

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9

Kelly, Charlene N. "The diversity of arbuscular mycorrhizal fungi functional and ecological responses to stressful soil conditions /." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3374.

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Thesis (M.S.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains vii, 57 p. : ill. Vita. Includes abstract. Includes bibliographical references.

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10

Thomas, Benjamin Mark. "The role of vesicular-arbuscular mycorrhizal fungi in Linum usitatissimum L. production in Southern Australian soils." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09pht4541.pdf.

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Bibliography: leaves 106-132. This project investigated the role of VAM fungi in the growth and nutrition of Linum usitatissimum L. in agricultural soils in southern Australia. It had two general aims: (1) to examine the role of indigenous VAM fungi in the growth and nutrition of linseed in field soil collected near Clare, South Australia; and (2) to examine the effect of VAM fungi on the Zn nutrition of Linola.

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11

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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12

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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13

Ghomsheh, Habib Nadian. "Effects of soil compaction on growth and P uptake by Trifolium subterraneum colonised by VAM fungi /." Title page, Contents and Summary only, 1997. http://web4.library.adelaide.edu.au/theses/09ASOP/09asopg427.pdf.

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14

Liu, Aiguo 1949. "Mycorrhizal symbiosis and nutrient uptake in new maize hybrids with contrasting phenotypes as influenced by soil phosphorus level." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36820.

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Development and functioning of arbuscular mycorrhizal (AM) symbiosis in the soil-plant system are required in sustainable agriculture. AM development of maize genotypes and uptake of nutrients as influenced by soil P levels were studied. Several experiments were conducted both in the greenhouse and in the field.<br>In greenhouse trials, pasteurized substrates were inoculated with Glomus intraradices as mycorrhizal treatments. Mycorrhizal development varied widely among maize hybrids and inbreds. Leafy normal stature (LNS) had the highest root colonization and shoot:root ratio and was the most

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15

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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16

Gruhn, Christine Mae. "Effect of a heavy metal on ecto- and vesicular-arbuscular mycorrhizal fungi: the physiology, ultrastructure, and ecology of copper stress and tolerance." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54531.

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This work consists of an introduction, six chapters dealing with various aspects of the response of mycorrhizal fungi to copper, and a brief conclusion. The first chapter examines the enzyme tyrosinase in several ectomycorrhizal fungi and shows that its activity is altered in these fungi in response to copper. Polyamines are also examined in this chapter, and it is shown that their levels are altered in some ectomycorrhizal fungi due to copper stress but not in others. The second chapter uses transmission electron microscopy to demonstrate that copper is bound to the hyphae of ectomycorrhizal

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17

Gonzalez-Chavez, Ma del Carmen. "Arbuscular mycorrhizal fungi from As/Cu polluted soils, contribution to plant tolerance and importance of the external mycelium." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312514.

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18

Pezzente, Mauro. "Effects of urban environmental conditions on the symbiosis between vesicular-arbuscular mycorrhizal fungi and silver maple (Acer saccharinum L.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0002/MQ29764.pdf.

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19

Cheeke, Tanya Elizabeth Amy. "An Evaluation of the Nontarget Effects of Transgenic Bacillus thuringiensis Maize on Arbuscular Mycorrhizal Fungi in the Soil Ecosystem." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1027.

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My dissertation research examined the effect of the cultivation of insect-resistant Bacillus thuringiensis (Bt) maize on the soil environment with a goal of understanding how to obtain a balance between technological advancement and maintenance of a healthy soil ecosystem. Although Bt plants may help to reduce pesticide use, conferring benefits to farm workers and the environment, there are still unresolved questions about how the cultivation of Bt plants affects soil organisms. For this dissertation project, I used 14 different genotypes of Bt maize and non-Bt maize (Zea mays) to investigate

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20

Leifheit, Eva [Verfasser]. "Soil sustainability and arbuscular mycorrhizal fungi / Eva Leifheit." Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1054636974/34.

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21

Toljander, Jonas. "Interactions between soil bacteria and arbuscular mycorrhizal fungi /." Uppsala : Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200639.pdf.

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22

Giannakis, Nikos. "Interactions between mycophagous nematodes, mycorrhizal and other soil fungi." Thesis, University of Leeds, 1990. http://etheses.whiterose.ac.uk/778/.

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The hypothesis that mycophagous nematodes feed on the mycelia of VAM fungi and consequently reduce the spread of vesicular-arbuscular mycorrhizal (VAM) infection in plant roots and the growth response of plants to this infection was investigated in experiments carried out under controlled environmental conditions. Preliminary experiments indicated that nematodes might be able to reduce VAM infection by Glomus clarum if they were added to soil at the same time as the fungal inoculum. However, nematodes did not affect the growth response of red clover to VAM infection even though there was an in

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23

Piotrowski, Jeffrey Scott. "Succession of arbuscular mycorrhizal fungi causes, consequences, and considerations /." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05272008-134138/.

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24

Hengari, Simeon Ngaitungue. "The growth response of Eucalyptus grandis x E. camaldulensis to salt stress, ectomycorrhizae and endomycorrhizae double colonisation /." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/390.

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25

Siasou, Eleni. "Interactions among a soil-borne pathogen, mycorrhizal fungi and rhizobacteria." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=159205.

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Wheat crops are known to be devastated by infections of soil-borne pathogens, especially the fungus <i>Gaeumannomyces graminis </i>var. <i>tritici</i> (Ggt) that causes ‘take-all’. Plant growth promoting rhizobacteria (PGPR) such as <i>Pseudomonas fluorescens</i> have received much attention as biocontrol agents against Ggt, mainly due to their ability to produce antibiotics. The polycetide secondary antimicrobial metabolite 2,4-diacetylphloroglucinol (DAPG) is produced by a number of fluorescent pseudomonad strains and is known to suppress Ggt. Another soil microbial group which have been und

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26

Storer, Kate Elizabeth. "Interactions between arbuscular mycorrhizal fungi and soil greenhouse gas fluxes." Thesis, University of York, 2013. http://etheses.whiterose.ac.uk/5022/.

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Arbuscular mycorrhizal fungi (AMF) can form a mutualistic symbiosis with over two-thirds of all land plants, providing phosphorus and/or nitrogen in exchange for carbon. They can have a significant effect on the surrounding soil, altering pH, water content, structure, and drainage. Important greenhouse gases (GHG) including carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) can be influenced by these factors, yet to date the interactions between AMF and soil GHG fluxes are surprisingly understudied. A microcosm system was developed to study GHG fluxes in the presence and absence of AM

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27

Filho, Paulo Furtado Mendes. "Potencial de reabilitação do solo de uma área degradada, através da revegetação e do manejo microbiano." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-18112004-151027/.

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A degradação de extensas áreas devido às atividades mineradoras a céu aberto tem trazido sérios prejuízos econômicos e, principalmente, graves danos ao ambiente. Esse tipo de atividade, além de alterar as características originais dos solos, levam a perda de grande parte de seus conteúdos de matéria orgânica e da biodiversidade natural, condições básicas para uma atividade biológica sustentável. A revegetação dos solos dessas áreas, com o objetivo de restabelecer suas características químicas, físicas e biológicas a um nível mínimo que permita o desenvolvimento de espécies vegetais e da ativi

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28

Sosa, Hernández Moisés A. [Verfasser]. "Vertical distribution of arbuscular mycorrhizal fungi in agricultural soil / Moisés A. Sosa Hernández." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1177152614/34.

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29

Sosa, Hernández Moisés Aarón [Verfasser]. "Vertical distribution of arbuscular mycorrhizal fungi in agricultural soil / Moisés A. Sosa Hernández." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1177152614/34.

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30

Maighel, Mahmood [Verfasser]. "Effect of Arbuscular mycorrhizal fungi and biochar on soil seed bank viability / Mahmood Maighel." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1117028453/34.

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31

Schneider, Katja. "Feeding biology and diversity of oribatid mites (Oribatida, Acari)." Phd thesis, Connect to this title online, 2005. http://elib.tu-darmstadt.de/diss/000585/.

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32

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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33

West, Lee. "Effects of Soil Fungi on Tree Seedling Establishment in a Southeastern Coastal Plain Forest." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46180.

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Effects of fungi and overstory composition on tree seedling survival and growth were investigated in closed canopy upland forests in the coastal plain of South Carolina. Seedlings of Quercus alba, Cornus florida and Pinus taeda were planted in the understory of two forest types -naturally regenerated hardwood and planted pine. Fungal species composition and biomass were experimentally manipulated with a treatment of the fungicide captan. In contrast with other studies conducted in different systems (sand dune, grassland, and old field), the effects of soil fungi were minor in a closed can

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34

Asif, Mohammad, of Western Sydney Macarthur University, and Faculty of Business and Technology. "Comparative study of production, infectivity, and effectiveness of arbuscular mycorrhizal fungi produced by soil-based and soil-less techniques." THESIS_FBT_XXX_Asif_M.xml, 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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35

Bizabani, Christine. "Ericoid mycorrhizal fungi and potential for inoculation of commercial berry species (Vaccinium corymbosium L.)." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1016127.

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Ericaceous plants are the richest growth form of the fynbos vegetation of South Africa. The fynbos is characterized by highly leached acidic soils, low mineral nutrients and climatically it is a winter rainfall and dry summer region. Ericoid mycorrhizal fungi associate with Erica species enhancing their ability to access essential nutrients for survival under unfavourable growth conditions. The aim of this study was to select local Ericaceae plant species and to isolate, identify and characterize the ericoid endophytes and assess these isolates as potential inocula for commercial berry species

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36

Melville, Alaina Diane. "Assessment of a Mycorrhizal Fungi Application to Treat Stormwater in an Urban Bioswale." Thesis, Portland State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10142122.

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<p> This study assessed the effect of an application of mycorrhizal fungi to stormwater filter media on urban bioswale soil and stormwater in an infiltration-based bioswale aged 20 years with established vegetation. The study tested the use of commercially available general purpose biotic soil blend PermaMatrix<sup> ®</sup> BSP Foundation as a treatment to enhance Earthlite™ stormwater filter media amelioration of zinc, copper, and phosphorus in an ecologically engineered structure designed to collect and infiltrate urban stormwater runoff before it entered the nearby Willamette Rive

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37

Merryweather, James. "Function and diversity of the arbuscular mycorrhiza in Bluebell, Hyacinthoides non-scripta (L.) Chouard ex Rothm." Thesis, University of York, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387544.

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Schuch, Luiz Felipe. "BENEFÍCIOS DA ASSOCIAÇÃO COM Glomus clarum E ADUBAÇÃO FOSFATADA EM CULTIVARES CRIOULAS DE MILHO, RS." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/4853.

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Maize has great economical importance, while Brazil is the third largest producer, but does not stand out among the countries with the highest level of productivity, due to the large number of small producers who cultivate this cereal with low or no technological level. In this sense, given the importance of maize in the national scene, action research must be performed with maize cultivars used by small producers, especially cultivars of maize landraces, which have not gone through the process of genetic improvement in research institutions. Thus, there is a need to study the Land varieties o

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39

Hu, Ping. "Impact of mycorrhizal fungi and nematodes on growth of Andropogon gerardii Vit., soil microbial components and soil aggregation." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/1093.

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40

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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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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Lance, Andrew C. "SOIL MICROBIOTA AND ECOLOGICAL RESTORATION:CONNECTIONS AND IMPLICATIONS FOR PRACTICE." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1584098163050123.

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Frank, Jonathan L. "Complex mutualism in an Oregon white oak woodland : hypogeous fungi, mycorrhizas and small mammal mycophagy associated with Quercus garryana /." View full-text version online through Southern Oregon Digital Archives, 2005. http://soda.sou.edu/awdata/050801a1.pdf.

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Thesis (M.S.)--Southern Oregon University, 2005.<br>"A thesis submitted to ... Southern Oregon University in partial fulfillment of the requirements for the degree of Master of Science ..." Includes bibliographical references (leaves 101-109). Also available via Internet as PDF file through Southern Oregon Digital Archives: http://soda.sou.edu. Search Bioregion Collection.

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Freidenreich, Ariel. "Comparison of Synthetic Versus Organic Herbicides/Insecticides on Arbuscular Mycorrhizal Fungi in Abelmoschus esculentus." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2601.

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Arbuscular mycorrhizal fungi (AMF) play a crucial role in improving the growth of a vast majority of plants. Past researchers have discovered that agricultural practices have a significant negative effect on the diversity of AMF. Arbuscular mycorrhizal fungi are reported to enhance plant nutrient uptake, stress tolerance, and soil aggregate formation which are key aspects of productive low-input farming. The objective of this study was to investigate the effects of four pesticides on the ability of AMF to colonize the roots of okra plants (Abelmoschus esculentus). The pesticides being tested i

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Thorne, Mark Ervin. "Calcareous Compacted Mine Soil in Southeast Ohio: A Prairie Grass Habitat." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1261263160.

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46

Sekgota, Wendy Maphefo. "Arbuscular mycorrhizal fungi as a bio-indicator of soil health under agricultural management practices in South Africa." Thesis, Rhodes University, 2019. http://hdl.handle.net/10962/72161.

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This study investigated the activity of arbuscular mycorrhizal (AM) fungi as a potential biological indicator of soil health under conventional and conservation agricultural management in South Africa. An experimental trial consisting of three replicates plots under conventional and reduced tillage subdivided into twelve treatments of six crops and two fertilizer inputs was assessed over four growing seasons for various AM fungal parameters such as spore density, most probable number (MPN) of propagules percentage root colonisation and easily extractable glomalin (EEG). Cropping combinations w

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Cosme, Marco Paulo Rebeca. "Effects of interaction between arbuscular mycorrhizal fungi, rhizobacteria, soil phosphorus and plant cytokinin content on tobacco growth." Master's thesis, ISA, 2010. http://hdl.handle.net/10400.5/15193.

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Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>A rizosfera é uma zona importante em termos de actividade e diversidade microbiana, onde ocorrem associações benéficas entre plantas e microorganismos, e é fundamental na produção agrícola. Ao proliferarem num meio complexo e heterogéneo como o solo, as raízes desenvolvem-se de forma estruturada, mas flexível, por forma a optimizar suas funções. Factores endógenos, como fisiologia e genética da planta, bem como factores exógenos abióticos e bióticos são elementos determinantes. Neste estudo propo

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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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Weisenberger, Lauren A. "Effects of soil disturbance on root colonization by arbuscular Mycorrhizal Fungi and growth of native and invasive plants." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/6989.

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Experiments were conducted to determine the effects of soil disturbance on arbuscular mycorrhizal fungi root colonization and the growth of invasive and native Hawaiian plants, predicting higher AMP dependency in native species than invaders, with consequent decreased root colonization and plant growth with disturbance. Six species were grouped into 3 pairs (1 native: 1 invasive) and plants were grown in disturbed and undisturbed treatments in the greenhouse and field for 4/6 weeks. Root colonization, root length, stem and seedling height, leaf number, shoot and root biomass, and mycorrhizal d

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Moller, Leandra. "Soil yeasts, mycorrhizal fungi and biochar: their interactions and effect on wheat (Triticum aestivum L.) growth and nutrition." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20417.

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Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: In order to test the effect of different plant growth-promoting strategies on Triticum aestivum L. (wheat), we investigated the ability of biochar and a grain-associated soil yeast, to improve the growth of this crop. Our first goal was to study the effect of biochar amendments to sandy soil on the growth and nutrition of wheat in the presence of mycorrhizal fungi. This was accomplished by amending soil with 0%, 1%, 2.5%, 5% and 10% (w/w) biochar and cultivating wheat plants in these soil-biochar mixtures. After harvesting

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