51 research outputs found
Trends in lung cancer mortality in Brazil from the 1980s into the early 21st century: age-period-cohort analysis
The importance of feeding in the larval development of the ghost shrimp Callichirus major (Decapoda: Callianassidae)
Retrospective study of 151 patients with cutaneous leishmaniasis treated with meglumine antimoniate
Conservação pós-colheita de bacuri (Platonia insignis Mart.) sob refrigeração e embalado em PVC
Growth and reproduction of the mangrove crab Goniopsis cruentata (Latreille, 1803) (Crustacea: Decapoda: Grapsidae) in southeastern Brazil
A review of soil NO transformation: associated processes and possible physiological significance on organisms
NO emissions from soils and ecosystems are of outstanding importance for atmospheric chemistry. Here we review the current knowledge on processes involved in the formation and consumption of NO in soils, the importance of NO for the physiological functioning of different organisms, and for inter- and intra-species signaling and competition, e.g. in the rooting zone between microbes and plants. We also show that prokaryotes and eukaryotes are able to produce NO by multiple pathways and that unspecific enzymo-oxidative mechanisms of NO production are likely to occur in soils. Nitric oxide production in soils is not only linked to NO production by nitrifying and denitrifying microorganisms, but also linked to extracellular enzymes from a wide range of microorganisms.
Further investigations are needed to clarify molecular mechanisms of NO production and consumption, its controlling factors, and the significance of NO as a regulator for microbial, animal and plant processes. Such process understanding is required to elucidate the importance of soils as sources (and sinks) for atmospheric NO
Dificuldades na execução das diretrizes do Programa de Vigilância e Controle da Leishmaniose Visceral em grandes municípios brasileiros
Scorpion incidents, misidentification cases and possible implications for the final interpretation of results
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