Index Catalog // ScholarsArchive@OSU

The role of ethylene in ectomycorrhiza formation and Fusarium infection of Douglas fir roots

Creator:: Graham, James Herbert
Abstract:: The ectomycorrhizal fungi Cenococcum geophilum, Hebeloma crustuliniforme and Laccaria laccata produced ethylene in vitro in modified Melin-Norkrans liquid medium only if amended with 2.5 to 10 mM methionine; Pisolithus tinctorius failed to produce ethylene unless the cultures were renewed with fresh methionine-amended medium prior to ethylene assay. An additional 19...
Resource Type:: Dissertation
Full Text:: many ectomycorrhizal fungi equaled that of Fusarium. Culture filtrates of H. crustuliniforme and L

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Creator:: Meyer, Julie (Julie Rae)
Abstract:: The influence of vesicular-arbuscular mycorrhizae (VAM) on populations of general taxonomic and functional groups of naturally-occurring rhizosphere bacteria and actinomycetes associated with roots of sweet corn (Zea mays var. rugosa) and subterranean clover (Trifolium subterraneum L.) was assayed using selective media. Sporangial production by Phytophthora cinnamomi was also used as...
Resource Type:: Masters Thesis
Full Text:: activity as well, with environmental factors influencing both (Katznelson, 1970). A. G. Lochhead, H

The nature of Fusarium exclusion from coniferous forest soils : evidence of differential microbial involvement in forest vs. nursery soils

Creator:: Schisler, David Albert
Resource Type:: Masters Thesis
Full Text:: dark at 21° C for 48 h. Percentage of germination was determined by making a soil smear on a slide

Microbial analysis of coniferous forest and nursery soils : effects of ectomycorrhizae, volatiles, and humic-rich organic substrates

Creator:: Schisler, David Albert
Abstract:: Fusarium spp. frequent conifer nursery soils yet are rarely recovered from coniferous forest soils. Experiments were performed to determine what influence humic-rich organic amendments and volatiles from soil, ectomycorrhizal fungi and ectomycorrhizae have on the populations of several physiologic and taxonomic microbial groups potentially related to this phenomenon. A comparative...
Resource Type:: Dissertation
Full Text:: herbaceous litter. In Biology of Plant Litter Decomposition (C. H. Dickinson and G. J. F. Pugh, Eds.), pp

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

Creator:: McGraw, Anne-Cressey
Resource Type:: Masters Thesis

Biology and control of Fusarium spp. on Douglas-fir (Pseudotsuga menziesii)

Creator:: Hoefnagels, Mariëlle Henriette, 1965-
Abstract:: Fusarium spp. are among the most important pathogens of Douglas-fir (Pseudotsuga menziesii) seedlings in bareroot nurseries. Currently the most effective disease control method is soil fumigation with methyl bromide. As methyl bromide is phased out, however, other disease management strategies may become more important. We explored two alternative approaches to...
Resource Type:: Dissertation
Full Text:: (Pseudotsuga menziesii) AN ABSTRACT OF THE THESIS OF Marie lle H. Hoefnagels for the degree of Doctor of

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Creator:: Kough, John Lawrence
Abstract:: The colonization of several species of plants by vesicularar-buscular mycorrhizae (VAM) was studied to determine how host, soil, or symbiont factors interacted to enhance growth of the host plant. Seedlings of two species of the Cuppressaceae and two of the Taxodiaceae formed VAM; colonization significantly improved growth. This response to...
Resource Type:: Dissertation
Full Text:: lighting for a 16 h photoperiod from high pressure sodium vapor lights at an average irradiance of 200 p

Ethylene production from cultures of Cylindrocladium and from Cylindrocladium-infected azalea leaves

Creator:: Axelrood, Paige Ellen
Abstract:: Ethylene was produced by Cylindrocladium floridanum and C. scoparium in culture. Production was methionine dependent and maximal during the active growth phase of the fungus, beginning shortly after spore germination. More ethylene was produced sooner by C. floridanum than C. scoparium. Ethylene was produced by Cylindrocladium both from active mycelium...
Resource Type:: Masters Thesis
Full Text:: . 41:1337- 1342. Abeles, F. B., R. E. Holm and H. E. Gahagan. 1967. Abscission: the role of aging

Variation in plant response to inoculation with different isolates of vesicular arbuscular mycorrhizal fungi

Creator:: Ianson, David C.
Resource Type:: Dissertation
Full Text:: and illuminated with supplemental light from high pressure sodium vapor lamps to ensure a 16 h

Inoculation of container-grown plants with vesicular-arbuscular mycorrhizae

Creator:: Biermann, Brenda Joan, 1954-
Abstract:: Studies were conducted on inoculation of container-grown plants with vesicular-arbuscular (VA) mycorrhizae. Intraradical vesicles formed in colonized roots were found to serve as propagules and significantly contribute to the infectivity of these roots. A procedure was developed for separating intraradical vesicles from roots; isolated intraradical vesicles were able to colonize...
Resource Type:: Dissertation
Full Text:: preparation: Experiment 1: Geranium (Pelargonium x hortorum L. H. V. Bailey 'Sprinter Scarlet') and

ScholarsArchive@OSU

The role of ethylene in ectomycorrhiza formation and Fusarium infection of Douglas fir roots

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

The nature of Fusarium exclusion from coniferous forest soils : evidence of differential microbial involvement in forest vs. nursery soils

Microbial analysis of coniferous forest and nursery soils : effects of ectomycorrhizae, volatiles, and humic-rich organic substrates

Development of vesicular-arbuscular mycorrhizae and pink root (Pyrenochaeta terrestris) in commercial onion fields in relation to nutrition, pH, and soil fumigation

Biology and control of Fusarium spp. on Douglas-fir (Pseudotsuga menziesii)

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Ethylene production from cultures of Cylindrocladium and from Cylindrocladium-infected azalea leaves

Variation in plant response to inoculation with different isolates of vesicular arbuscular mycorrhizal fungi

Inoculation of container-grown plants with vesicular-arbuscular mycorrhizae

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search