Epiphytic Fungi
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Association of Fusarium and Phomopsis with Peroba Rosa Seeds
ABSTRACT Peroba rosa (Aspidosperma polyneuron) is a native forest species endangered due to intense predatory exploitation. The objective of this study was to evaluate the association and fungi transmission in peroba rosa seeds from four regions of Paraná. Germination and vigor were evaluated using the paper roll method. Sanitary analysis consisted of the d
Floresta Ambient.. Publicado em: 02/05/2019
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2. The epiphytic orchids Ionopsis utricularioides and Psygmorchis pusilla associate with different Ceratobasidium lineages at Valle del Cauca, Colombia
In Orchidaceae, association with symbiotic fungi is required for seed germination and seedling development, thereby being the main energy source during the first steps of germination. Colombia is one of the countries with the greatest biodiversity of orchids, with an estimated 3,200 species, but few studies on orchid mycorrhiza have been conducted. In our st
Acta Bot. Bras.. Publicado em: 2015-03
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3. Seasonality and mycorrhizal colonization in three species of epiphytic orchids in southeast Mexico
Orchids establish symbiosis with Rhizoctonia mycorrhizal fungi, forming the characteristic pelotons within the cells of the root cortex. Under natural conditions, terrestrial and epiphytic orchids have different levels of dependence upon the fungal symbiont, although various authors have mentioned that once orchid plants reach maturity the interaction become
Acta Bot. Bras.. Publicado em: 2014-12
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4. Biofertilizer as tool to increase microbial diversity for management of plants diseases / Biofertilizante como ferramenta para incrementar a diversidade microbiana visando o manejo de doenças de plantas
In this study were compared the community of yeasts in the phylloplane of lily a conventional system with high pesticide use, with an without pesticide use, with the use of biofertilizers and biocontrol agents; to evaluate the antagonism of yeast Sporidiobolus pararoseus isolated from leaves of lily on Botrytis cinerea; determined the microbial epiphytic in
Publicado em: 2010
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5. RizobactÃrias promotoras de crescimento e fungos micorrÃzicos arbusculares no desenvolvimento de mudas micropropagadas de bananeira
In order to study the effect of plant growth promoted bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) on development of micropropagated banana seedlings three experiments were performed. Endophytic and epiphytic bacteria were isolated from roots of six cultivars of banana and characterized regarding production of pectinase, celulase, indolacetic acid,
Publicado em: 2008
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6. Comunidades fúngicas endofítica, epifítica e rizosférica em diferentes ecossistemas / Endophytic, epiphitic and rhizospheric fungi communities in different ecosystems
O presente trabalho teve por objetivo avaliar o efeito de três ecossistemas sobre, a ocorrência de fungos rizosféricos, endofíticos e epifíticos. As áreas de estudo estão localizadas em uma propriedade rural, situada na cidade de Venâncio Aires, RS. Os fungos endofíticos e epifíticos foram isolados de amostras de raízes de guajuvira, (Patagonula a
Publicado em: 2007
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7. Biodiversity and ecophysiology of endomycorrhizal fungi associated with bromeliads. / Biodiversidade e ecofisiologia de fungos micorrízicos arbusculares em associação com bromélias.
In this work, the biodiversity of AM fungi found associated with terrestrial and epiphytic bromeliads, and the response of Aechmea nudicaulis (L.) Griseb., germinated in vitroto inoculation with various AM fungi were compared (ecophysiology). Plant growth, nutrient content, and colonization by AM fundi were measured in two substrates. The diversity of AM fun
Publicado em: 2002
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8. Effects of Moisture Content and Temperature on Aflatoxin Production in Corn 1
Samples of freshly harvested and remoistened corn, of various moisture contents, were stored at different temperatures; analyses for aflatoxin content were made periodically. At moisture levels above 17.5% and at temperatures of 24 C or warmer, aflatoxins were formed by Aspergillus flavus present in the original epiphytic mycoflora. Remoistened dried corn wa
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9. Thymidine Incorporation by the Microbial Community of Standing Dead Spartina alterniflora†
Thymidine incorporation by the microbial community on standing dead leaves of Spartina alterniflora did not obey many of the assumptions inherent in the use of the technique in planktonic systems. Incorporation rates of [methly-3H]thymidine were nonsaturable over a wide concentration range (101 to 105 nM). Owing to metabolism by both fungi and bacteria, a ma
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10. Molecular Characterization and Sequence of a Methionine Biosynthetic Locus from Pseudomonas syringae
Two methionine biosynthetic genes in Pseudomonas syringae pv. syringae, metX and metW, were isolated, sequenced, and evaluated for their roles in methionine biosynthesis and bacterial fitness on leaf surfaces. The metXW locus was isolated on a 1.8-kb DNA fragment that was required for both methionine prototrophy and wild-type epiphytic fitness. Sequence anal
American Society for Microbiology.
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11. Colonization of a Submersed Aquatic Plant, Eurasian Water Milfoil (Myriophyllum spicatum), by Fungi under Controlled Conditions
A laboratory assay to assess colonization of a submersed aquatic plant, Eurasian water milfoil (Myriophyllum spicatum), by fungi was developed and used to evaluate the colonization potential of Colletotrichum gloeosporioides, Acremonium curvulum, Cladosporium herbarum, Aureobasidium pullulans, a Paecilomyces sp., and an unidentified sterile, septate fungus.
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12. Quantitative fluorescence in situ hybridization of Aureobasidium pullulans on microscope slides and leaf surfaces.
A 21-mer oligonucleotide probe designated Ap665, directed at the 18S rRNA of Aureobasidium pullulans and labelled with five molecules of fluorescein isothiocyanate, was applied by fluorescence in situ hybridization (FISH) to populations of the fungus on slides and apple leaves from growth chamber seedlings and orchard trees. In specificity tests that include