Espécies esporocárpicas de fungos micorrízicos arbusculares (Glomeromycota): taxonomia, sistemática e evolução
Arbuscular Mycorrhizal Fungi (AMF) play a symbiotic mutualistic association with most plant species in the most varied terrestrial ecosystems, however, AMF sporocarp species (the only members of the group with macroscopic structures) have been little investigated and taken into account in the tax...
Na minha lista:
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | doctoralThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/29732 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| Resumo: | Arbuscular Mycorrhizal Fungi (AMF) play a symbiotic mutualistic association
with most plant species in the most varied terrestrial ecosystems, however, AMF
sporocarp species (the only members of the group with macroscopic structures) have
been little investigated and taken into account in the taxonomic studies. This fact is
mainly attributed to methodological restrictions. The use of the term sporocarp in the
Phylum Glomeromycota is controversial, considering diversity of species that present
this habit, a consequence of the complex morphology found in the group, which up to
the present moment does not have a comprehensive analysis about the informative
characters for the delimitation of species. In addition, 77% of the species recognized as
sporocarpous were included exclusively on the basis of morphology data, a fact that
makes a phylogenetic systematic of this group limited. Thus, the present study aimed at
a morphological and molecular review of the sporocarpous species of AMF through the
analysis of morphological data and sequences of SSU, LSU and ITS region of DNA.
For this, species deposited in institutional collections and collected in areas belonging to
strategic domains such as the Amazon, ―Brejos de Altitude‖ and Atlantic Rainforest
were analyzed. A total of 64 specimens from institutional collections were reviewed, of
which six constituted emendations. In the sampled areas, 17 species were collected, of
which five new species and a new genus for science. The results obtained allowed to
elucidate aspects of the taxonomy, systematics and evolution of the group, including a
delimitation of the term sporocarp for the film Glomeromycota, as well as the records of
occurrence records for the country, descriptions of taxa and addition of data for use of
keys identification. |
|---|