Search Results - "Pereira, Antônio Batista"
-
1
Description of plant communities on Half Moon Island, Antarctica
Published in Polar research (01-01-2018)“…During February-March of the austral summers of 2013/14 and 2014/2015, fieldwork was performed on Half Moon Island, South Shetland Archipelago, Antarctica, to…”
Get full text
Journal Article -
2
Geographic distribution of epilithic diatoms (Bacillariophyceae) in Antarctic lakes, South Shetland Islands, Maritime Antarctica Region
Published in Check list (Luís Felipe Toledo) (01-09-2019)“…Organisms adapt to the environment by establishing themselves in suitable locations. Adaptation to the harsh Antarctic environment is no different. In this…”
Get full text
Journal Article -
3
In situ methane and nitrous oxide fluxes in soil from a transect in Hennequin Point, King George Island, Antarctic
Published in Chemosphere (Oxford) (01-01-2013)“…► The effects of vegetal cover and sea birds on soil greenhouse gases were evaluated. ► Birds and vegetation increased the soil methane uptake and nitrous…”
Get full text
Journal Article -
4
First Record of Juncaceicola as Endophytic Fungi Associated with Deschampsia antarctica Desv
Published in Diversity (Basel) (01-12-2018)“…In the current study, we present the molecular characterization of an endophyte fungus associated with the leaves of Deschampsia antarctica Desv. (Poaceae), a…”
Get full text
Journal Article -
5
Growth and development of halophyte Funaria hygrometrica Hedw. (Funariaceae) under salt stress
Published in Bioscience journal (01-11-2017)“…The ability of bryophytes to tolerate salt is determined by a number of biochemical routes, whereas the salt ends up driving the activation of adaptive…”
Get full text
Journal Article -
6
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica
Published in Polar Research (01-01-2015)“…This study aimed to quantify the nitrous oxide (N 2 O) and methane (CH 4 ) fluxes at sites with different vegetation covers and where bird activity was present…”
Get full text
Journal Article Book Review -
7
Soilscapes and geoenvironments at Stansbury Peninsula, Nelson Island, maritime Antarctica
Published in Catena (Giessen) (01-04-2023)“…•Cryosols formation was assessed in a para-periglacial transitional geoenvironment.•Physical weathering dominates over chemical weathering in Stansbury…”
Get full text
Journal Article -
8
Comparative leaf anatomy of the nothospecies × Butyagrus nabonnandii (Arecaceae) with its parental species
Published in Rodriguésia (01-04-2024)“…Abstract Anatomical studies of the leaf blade have been used to complement the morphological data and aid circumscription and identification in Arecaceae. The…”
Get full text
Journal Article -
9
Active layer thermal regime at different vegetation covers at Lions Rump, King George Island, Maritime Antarctica
Published in Geomorphology (Amsterdam, Netherlands) (15-11-2014)“…Climate change impacts the biotic and abiotic components of polar ecosystems, affecting the stability of permafrost, active layer thickness, vegetation, and…”
Get full text
Journal Article -
10
Modulation of dopaminergic neurotransmission induced by sublethal Doses of the organophosphate trichlorfon in cockroaches
Published in Ecotoxicology and environmental safety (01-11-2014)“…Organophosphate (OP) insecticides have been used indiscriminately, based on their high dissipation rates and low residual levels in the environment. Despite…”
Get full text
Journal Article -
11
Entomotoxic Activity of Prasiola crispa (Antarctic Algae) in Nauphoeta cinerea Cockroaches: Identification of Main Steroidal Compounds
Published in Marine drugs (10-10-2019)“…is a macroscopic green algae found in abundance in Antarctica ice free areas. -hexaneextract (HPC) induced insecticidal activity in cockroaches after 24 h of…”
Get full text
Journal Article -
12
Distribution of aerophilous diatom communities associated with terrestrial green macroalgae in the South Shetland Islands, Maritime Antarctica
Published in PloS one (30-12-2019)“…The establishment of diatom communities depends on environmental factors such as the type of substrate and geographic conditions that influence the dispersal…”
Get full text
Journal Article -
13
Genesis, mineralogy and ecological significance of ornithogenic soils from a semi-desert polar landscape at Hope Bay, Antarctic Peninsula
Published in Geoderma (01-11-2013)“…Large amounts of organic matter of marine origin are seasonally deposited on ice-free soils by birds and mammals, especially penguins, in some restricted…”
Get full text
Journal Article -
14
Distribution and Interaction Patterns of Bacterial Communities in an Ornithogenic Soil of Seymour Island, Antarctica
Published in Microbial ecology (01-04-2015)“…Next-generation, culture-independent sequencing offers an excellent opportunity to examine network interactions among different microbial species. In this…”
Get full text
Journal Article -
15
Toxicity Induced by Prasiola crispa to Fruit Fly Drosophila melanogaster and Cockroach Nauphoeta cinerea: Evidence for Bioinsecticide Action
Published in Journal of Toxicology and Environmental Health, Part A (01-02-2014)“…The adverse effects of the alga Prasiola crispa extract (PcE) were investigated in a fruit fly (Drosophila melanogaster) and cockroach (Nauphoeta cinerea)…”
Get full text
Journal Article -
16
Phylogenetic and selection pressure analyses of cold stress-associated PAL-Like and Lec-RLK genes in antarctic mosses
Published in Current plant biology (01-12-2020)“…Over time plants undergone abiotic changes often leading to genotypic and phenotypic level adjustments to ensure survival. Temperature is one of these factors…”
Get full text
Journal Article -
17
Antiviral activity of 7-keto-stigmasterol obtained from green Antarctic algae Prasiola crispa against equine herpesvirus 1
Published in Journal of applied phycology (01-02-2017)“…The aim of this investigation was to evaluate the in vitro cytotoxic effect and antiviral properties of 7-keto-stigmasterol from the crude extract of the green…”
Get full text
Journal Article -
18
Endophytic fungi from an overlooked plant species: A case study in Kelissa brasiliensis (Baker) Ravenna
Published in Acta Botânica Brasílica (01-01-2022)“…ABSTRACT Studies involving endophytic fungi isolated from endemic plants and their antibacterial potential are largely unknown in the Pampa biome. In this…”
Get full text
Journal Article -
19
Protective effects of three extracts from Antarctic plants against ultraviolet radiation in several biological models
Published in Journal of photochemistry and photobiology. B, Biology (03-08-2009)“…The photoprotective effect of the methanolic extracts of three Antarctic plant species – Deschampsia antarctica Desv., Colobanthus quitensis (Kunth) Bartl.,…”
Get full text
Journal Article -
20
Drosophila melanogaster - an embryonic model for studying behavioral and biochemical effects of manganese exposure
Published in EXCLI journal (01-01-2014)“…Embryonic animals are especially susceptible to metal exposure. Manganese (Mn) is an essential element, but in excess it can induce toxicity. In this study we…”
Get full text
Journal Article