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| Registros recuperados: 2.235 | |
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| Cavalcanti,Laise de Holanda; Bezerra,Andrea Carla Caldas; Costa,Antônia Aurelice Aurélio; Ferreira,Inaldo do Nascimento; Bezerra,Maria de Fátima de Andrade. |
| Order Ceratiomyxales, which belongs to subclass Ceratiomyxomycetidae, includes the exospore bearing Myxomycetes, solely comprising family Ceratiomyxaceae and genus Ceratiomyxa, with four species. Based on the literature, on herbarium collections, and on recent surveys carried out by the authors in different states and ecosystems, it was possible to determine the occurrence and distribution of C. fruticulosa (cosmopolitan),C. morchella and C. sphaerosperma (predominantly tropical or subtropical) in northeastern Brazil. Species descriptions and illustrations are presented, as well as a map of their geographical distribution in eight of the nine states of Northeast Brazil. This order is being recorded for the first time for the state of Sergipe. Ceratiomyxa... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ceratiomyxa; Floristic survey; Taxonomy; Chorology. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500014 |
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| LOPEZ-RUF,M. L.; PELLERANO,G. N.; BACHMANN,A. O.. |
| Plastron and spiracular features strongly resemble those of Aphelocheirus aestivalis (Fab.), described by Messner et al. (1981). Plastronal foliose hairs, somewhat irregular shaped are regularly distributed in the plastron. Very numerous tiny openigs on sternites an tergites connect platronal air with a subcuticular air film limited internally apparently by a membrane. Aplicated, radial, structure at the proximal end of the tracheae, almost occluding the extremely fine spiracular openings, appear with lesser variations in both species, suggesting close relationships than accepted until now. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insect morphology; Spiracles; Taxonomy; Entomology; Heteroptera; Naucoroidea. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000200010 |
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| Delamuta,Jakeline Renata Marçon; Ribeiro,Renan Augusto; Menna,Pâmela; Bangel,Eliane Villamil; Hungria,Mariangela. |
| Symbiotic association of several genera of bacteria collectively called as rhizobia and plants belonging to the family Leguminosae (=Fabaceae) results in the process of biological nitrogen fixation, playing a key role in global N cycling, and also bringing relevant contributions to the agriculture. Bradyrhizobium is considered as the ancestral of all nitrogen-fixing rhizobial species, probably originated in the tropics. The genus encompasses a variety of diverse bacteria, but the diversity captured in the analysis of the 16S rRNA is often low. In this study, we analyzed twelve Bradyrhizobium strains selected from previous studies performed by our group for showing high genetic diversity in relation to the described species. In addition to the 16S rRNA,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological nitrogen fixation; Bradyrhizobium; Multilocus sequence analysis; Phylogeny; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200035 |
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| Santiago,André Luiz Cabral Monteiro de Azevedo; Santos,Paulo Jorge Parreira dos; Maia,Leonor Costa. |
| Nineteen taxa of Mucorales, belonging to Absidi, Apophysomyces, Cunninghamella, Fennellomyces, Lichtheimi, Mucor, Mycotypha, Rhizopus and Syncephalastrum were isolated from 36 composite soil samples in three semiarid areas in the State of Pernambuco (Triunfo, Cabrobó and Belém de São Francisco), Northeast Brazil, which are characterized by Caatinga vegetation. Triunfo is preserved, whereas Cabroró and Belém de São Francisco are experiencing low and severe desertification processes, respectively. Mucorales were isolated in Petri dishes in triplicate from 5 mg samples of soil placed on the surface of wheat germ agar plus chloramphenicol and Cercobin [Dimethyl 4,49-(103 phenylene) bis (3-thioallophanate)] medium. The plates were left on a bench at room... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Caatinga; Mucoromycotina; Soil degradation; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100044 |
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| Souza,Carlos Alberto Fragoso de; Lima,Diogo Xavier; Gurgel,Luciana M.S.; Santiago,André Luiz Cabral Monteiro de Azevedo. |
| Abstract Mucorales comprises fungi commonly isolated as saprobes from soil, dung, stored grains and plants. Although these fungi have been studied in several countries, there are relatively a few reports of them in semi-arid areas. Therefore, the aims of the present study were to assess and compare the Mucorales communities in dung from different species and breeds of herbivores in the semi-arid of Pernambuco, based on the frequency of occurrence and species richness of these fungi. Samples of dung collected in the cities of Arcoverde, Serra Talhada and Sertânia were incubated in moist chambers in triplicate. Altogether, 24 taxa of Mucorales distributed in the genera Absidia, Circinella, Cunninghamella, Lichtheimia, Mucor, Pilobolus, Rhizopus and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Dung; Herbivore; Mucoromycotina; Taxonomy. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100079 |
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| Santiago,André Luiz Cabral Monteiro de Azevedo; Trufem,Sandra Farto Botelho; Malosso,Elaine; Santos,Paulo Jorge Parreira dos; Cavalcanti,Maria Auxiliadora de Queiroz. |
| Thirty-eight taxa of Zygomycetes distributed in 15 genera were recorded from tapir (Tapirus terrestris), camel (Camelus bactrianus), horse (Equus caballus), deer (Cervus elaphus), agouti (Dasyprocta aguti), donkey (Equus asinus), llama (Llama glama) and waterbuck (Kobus ellipsiprymnus) dung collected at the Reserva Ecológica de Dois Irmãos located in Recife, State of Pernambuco, Northeast Brazil. The samples were collected on a monthly basis from June 2005 to May 2006, taken to the laboratory and incubated in moist chambers. Higher number of taxa was observed in the excrements of tapir, followed by deer and donkey. The highest number of species was detected for Mucor, followed by Pilobolus. Statistical analyses showed significant differences in richness of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coprophilous; Taxonomy; Ecology; Ruminants. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100012 |
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| Castro,André L. M. de; Vollú,Renata E.; Peixoto,Raquel S.; Grigorevski-Lima,André L.; Coelho,Rosalie R. R.; Bon,Elba P. S.; Rosado,Alexandre S.; Seldin,Lucy. |
| A cellulolytic bacterial strain, designated P118, isolated from the gut of the tropical fish Parotocinclus maculicauda was identified as belonging to the genus Paenibacillus based on phenotypic and chemotaxonomic characteristics and the 16S rRNA gene sequence. The novel strain was Gram-positive, spore-forming and rod-shaped. Catalase but not oxidase was produced. Carboxymethylcellulose was hydrolyzed but starch or gelatin was not. Acetoin production was negative whereas nitrate reduction and urease production were positive. Many carbohydrates served as carbon sources for growth. MK-7 was the predominant isoprenoid quinone. Anteiso-C15:0 (38.73%) and C16:0 (20.85%) were the dominant cellular fatty acids. Strain P118 was closely related to Paenibacillus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioprospection; Cellulose degradation; Paenibacillus sp.; Parotocinclus maculicauda; Taxonomy. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400048 |
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| Formentini,Aline Carraro; Sosa-Gómez,Daniel Ricardo; Paula-Moraes,Silvana Vieira de; Barros,Neiva Monteiro de; Specht,Alexandre. |
| ABSTRACT: The present research updates the systematic position and nomenclature of Lepidoptera associated with soybean crops in Argentina, Brazil, Chile and Uruguay. Scientific literature lists 69 species of Lepidoptera feeding on soybean plants. These species are representatives of the Superfamilies Noctuoidea (31), Pyraloidea (13), Hesperioidea (12), Tortricoidea (5), Geometroidea (5), and Bombycoidea (3). Diversity of Lepidoptera associated to crop, injury in different parts of the plant, and changes in species composition are discussed considering the changes in plant disease management, introduction of plants expressing Bt proteins, and the recent introduction of Helicoverpa armigera (Hübner) as a new crop pest. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caterpillars; Inventory; Taxonomy; Systematic; Lepidopterous pests.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202113 |
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| Duarte,Adriane da Fonseca; Moreira,Grazielle Furtado; Cunha,Uemerson Silva da; Siqueira,Paulo Ricardo Ebert; Moraes,Gilberto José de. |
| ABSTRACT: The diversity of edaphic mites in Brazilian natural environments is little known, especially in the Pampa biome, in southern region of Brazil. The objective of this study was to evaluate the diversity and abundance of edaphic fauna of mesostigmatid mites in a region of the Pampa biome of the state of Rio Grande do Sul. Soil samples were collected in the municipality of Aceguá, in 2012 and 2013. Mites were extracted using Berlese-Tullgren modified funnels. In total, 1900 mesostigmatid mites were collected, representing 44 species from 23 genera and 10 families. The most abundant families were Rhodacaridae, Ologamasidae and Laelapidae, with respectively 903, 578 and 214 specimens, corresponding respectively to 47.5, 30.4 and 11.3% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Predators; Biological control; Biodiversity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200152 |
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| Registros recuperados: 2.235 | |
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