Alice Lemos

Universidade Federal do Pampa (Unipampa) | UNIPAMPA · Department of Biology

Background The investigation of Agaricales diversity in the Antarctica is limited, with only seven genera reported for the region. Galerina stands out as the genus with the highest species diversity, including 12 species in Antarctica. This research reports the presence of G. marginata in the region, providing the first complete morphological descr...

This work summarize the results of Myxomycetes collections carried out by European and South American researchers on Antarctic ice free areas during the last fifty years. An annotated list and an identification key for the nine species with confirmed occurrence on the continent are presented.

Bryophytes colonize different substrates, while fungi, such as basidiomycetes, can occur on the same substrate as these plants and sometimes associate with them. In Brazil, there are few studies with bryofilated Agarycomycetes and they rarely identify the mosses or the liverworts involved in this association. Taxonomic studies involving bryophyte f...

Due the tolerance in soil degraded, Eucalyptus is widely used in reforestation area. This study aims to evaluate the fungi that use Eucalyptus grandis W. Hill ex Maiden as substrate in reforestation area in southern Brazil. Fungi were identified and macronutrient and micronutrient contents were evaluated in order to understand the relationship betw...

The substrate has great importance for the development of seedlings, and many materials can be used for its composition. Thus, the aim of this study was to evaluate the quality of Jacaranda mimosifolia D. Don seedlings on different substrates with sewage sludge (SS). The substrates were combined as follows: T1 (50% commercial substrate Plantmax® +...

Popularmente conhecido como cogumelo ostra ou shimeiji, Pleurotus spp. (Agaricales, Agaricaceae) é o segundo gênero comestível mais cultivado no Brasil. Considerando a importância econômica de seu cultivo, este trabalho objetivou avaliar as características morfológicas, biomassa fresca e seca total, assim como a produtividade deste cogumelo em subs...

Considerando o problema do tratamento final do esgoto e a necessidade crescente de produção de mudas florestais, este estudo objetivou avaliar o efeito de diferentes substratos contendo Lodo de Esgoto (LE) na produção de mudas de Schinus terebinthifolius Raddi. Quatro tratamentos foram implementados contendo diferentes proporções de LE. Após 180 di...

The study of Agaricomycetes in the Brazilian Pampa Biome is still incipient, but it is very necessary for the valorization and preservation activities in this area. In terms of fungal diversity, it is the least studied Brazilian biome, with only 84 species already described for the site, despite the great diversity of fauna and flora that this biom...

Bird-fungi associations are ecologically important, and the species of these groups that occur in the Pampa biome region have different characteristics. The Shiny Cowbirds (Molothrus bonariensis – Icteridae) is a ground foraging bird that cohabits vegetation of grasslands. Some mushrooms of this biome have considerably large and edible basidiomes,...

Known as "electric-light bugs", belostomatids potentially act as agents of biological control. The Belostoma genus has holokinetic chromosomes, interspecific variation in diploid number, sex chromosome system and DNA content. Thus, the chromosomal complement, the accumulation of constitutive heterochromatin and the distribution of rDNA clusters by...

Chromosomal rearrangements are an important process in the evolution of species. It is assumed that these rearrangements occur near repetitive sequences and heterochromatic regions. Avian karyotypes have diverse chromosomal band patterns and have been used as the parameters for phylogenetic studies. Although the group has a high diversity of specie...

The Saffron finch (Sicalis flaveola), a semi-domestic species, is tolerant of human proximity and nesting in roof spaces. Considering the importance of cytogenomic approaches in revealing different aspects of genomic organization and evolution, we provide detailed cytogenetic data for S. flaveola, including the standard Giemsa karyotype, C- and G-b...

Although birds belonging to order Caprimulgiformes show extensive karyotype variation, data concerning their genomic organization is still scarce, as most studies have presented only results obtained from conventional staining analyses. Nevertheless, some interesting findings have been observed, such as the W chromosome of the Common Potoo, Nyctibi...

Drought is a worldwide limiting factor in bean production (Phaseolus vulgaris L.), and water deficit when persistent in the early stages of growth can cause irreversible morphological damage. The objective of this research was to analyze morphological indicators in response to the imposition of water deficit in two bean cultivars: Phaseolus vulgari...

Hummingbirds (Trochilidae) are one of the most enigmatic avian groups, and also among the most diverse, with approximately 360 recognized species in 106 genera, of which 43 are monotypic. This fact has generated considerable interest in the evolutionary biology of the hummingbirds, which is reflected in a number of DNA-based studies. However, only...

Resumo O artigo aborda experiências e reflexões sobre um projeto de monitoria acadêmica na disciplina de genética. Este componente curricular é ofertado pelos cursos de graduação da Universidade Federal do Pampa. Alunos do ensino médio e da graduação a consideram como uma disciplina de alto grau de dificuldade. No intuito de um processo colaborativ...

The objective of the research was to evaluate the effect of different substrates with sewage sludge on nutrients concentration in biomass of Psidium cattleianum var. cattleianum Sabine seedlings. The treatments are different substrate compositions containing sewage sludge. After 180 days of seeding, biometric characteristics were measured: aerial p...

Bird chromosomes, which have been investigated scientifically for more than a century, present a number of unique features. In general, bird karyotypes have a high diploid number (2n) of typically around 80 chromosomes that are divided into macro- and microchromosomes. In recent decades, FISH studies using whole chromosome painting probes have show...

A utilização de oficinas didáticas em sala de aula é um método eficiente, que pode auxiliar o aluno no processo de aprendizagem, interligando teoria e prática motora. Esta pesquisa teve como principal objetivo avaliar de forma quantitativa e qualitativa os múltiplos conhecimentos disseminados através do uso de oficinas didáticas em sala de aula, te...

Despite the richness of species in the Hirudinidae family, little is known about the genome organization of swallows. The Progne tapera species presents genetic and morphological difference when compared to other members of the same genus. Hence, the aims of this study were to analyze the chromosomal evolution of three species Progne tapera, Progne...

Among birds, species with the ZZ/ZW sex determination system generally show significant differences in morphology and size between the Z and W chromosomes (with the W usually being smaller than the Z). In the present study, we report for the first time the karyotype of the spot-flanked gallinule (Gallinula melanops) by means of classical and molecu...

O objetivo do trabalho foi avaliar o efeito de diferentes substratos, contendo lodo de esgoto, no teor de macro e micronutrientes em tecidos vegetais (raiz e parte aérea) de mudas de Parapiptadenia rigida (Benth.) Brenan. Os tratamentos foram: T1 (50% substrato comercial Plantmax® + 50% cama de equino (composto orgânico), T2 (20% lodo de esgoto + 8...

As in many other bird groups, data on karyotype organization and distribution of repetitive sequences are also lacking in species belonging to the family Hirundinidae. Thus, in the present study, we analyzed the karyotypes of 3 swallow species (Progne tapera, Progne chalybea, and Pygochelidon cyanoleuca) by Giemsa and AgNOR staining, C-banding, and...

Abstract The Passeriformes is the most diverse and cytogenetically well-known clade of birds, comprising approximately 5,000 species. The sooty-fronted spinetail (Synallaxis frontalis Aves: Furnariidae) species, which belongs to the order Passeriformes, is typically found in South America, where it is widely distributed. Polymorphisms provide genet...

Resumen. Belostoma Latreille comprende 74 especies de insectos acuáticos depredadores, con 42 de ellas registradas en Brasil. Este grupo se caracteriza por presentar cromosomas holocéntricos con sistemas de determinación sexual múltiple o simple. En Belostomatidae Leach, unas pocas especies presentan microcromosomas. Belostoma estevezae Ribeiro y A...

Buscando analisar a aplicabilidade do método interdisciplinar, efetuou-se uma pesquisa bibliográfica em materiais didáticos, dispostos na rede de ensino público, assim como a aplicação de questionários com alunos do ensino médio. O tema central para a interpretação de dados analíticos interdisciplinares foi a disciplina de Física, lecionada entre o...

In this work we performed comparative chromosome painting using probes from Gallusgallus (GGA) Linnaeus, 1758 and Leucopternisalbicollis (LAL) Latham, 1790 in Synallaxisfrontalis Pelzeln, 1859 (Passeriformes, Furnariidae), an exclusively Neotropical species, in order to analyze whether the complex pattern of intrachromosomal rearrangements (paracen...

Apesar da pequena quantidade de Sequências Repetitivas (SRs) no genoma das aves, estas apresentam uma grande importância para diversidade genética dessa classe. Dentre os SRs destacam-se os microssatélites e clusters de rDNA18s. Assim o objetivo desse trabalho foi identificar os sítios das sequências rDNA18s e o acúmulo de algumas sequências micros...

Dentro da classe Aves a Ordem Passeriformes possui o maior número de espécies com cariótipos descritos, mantendo uma semelhança numérica (2n=80). A espécie Synallaxis frontalis pertence à família Furnariidae, com ampla distribuição na região neotropical. Os rearranjos cromossômicos constituem eventos cromossômicos responsáveis por causar isolamento...

A classe Aves possui distribuição cosmopolita e sua diversidade é de aproximadamente dez mil espécies. As espécies da família Hirundinidae (Passeriformes), são aves Neognatas de hábitos diurnos. Este trabalho objetivou contribuir para o conhecimento citogenético das espécies Pygochelidon cyanoleuca (PCY), Progne chalybea (PCH) e Progne tapera (PTA)...

O objetivo deste trabalho foi avaliar o efeito de diferentes substratos na produção e qualidade de mudas de Eugenia uniflora DC. Os tratamentos foram compostos por quatro substratos, sendo: S1) 100 % substrato comercial Plantmax®; S2) 50% substrato comercial Plantmax® + 50% substrato cama de equino; S3) 50% substrato comercial Plantmax® + 50% resíd...

In this work we performed comparative chromosome painting using probes from Gallus gallus (GGA) Linnaeus, 1758 and Leucopternis albicollis (LAL) Latham, 1790 in Synallaxis frontalis Pelzeln, 1859 (Passeriformes, Furnariidae), an exclusively Neotropical species, in order to analyze whether the complex pattern of intrachromosomal rearrangements (para...