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Article
Open AccessDearomatization drives complexity generation in freshwater organic matter
Dissolved organic matter (DOM) is one of the most complex, dynamic and abundant sources of organic carbon, but its chemical reactivity remains uncertain1–3. Greater insights into DOM structural features could fac...
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Article
Open AccessMethane yield response to pretreatment is dependent on substrate chemical composition: a meta-analysis on anaerobic digestion systems
Proper pretreatment of organic residues prior to anaerobic digestion (AD) can maximize global biogas production from varying sources without increasing the amount of digestate, contributing to global decarboni...
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Article
Open AccessAuthor Correction: Tropical forests as drivers of lake carbon burial
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Article
Open AccessAbsence of oxygen effect on microbial structure and methane production during drying and rewetting events
Natural environments with frequent drainage experience drying and rewetting events that impose fluctuations in water availability and oxygen exposure. These relatively dramatic cycles profoundly impact microbi...
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Article
Overexpression of a soybean Globin (GmGlb1-1) gene reduces plant susceptibility to Meloidogyne incognita
The overexpression of the GmGlb1-1 gene reduces plant susceptibility to Meloidogyne incognita.
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Article
Open AccessTropical forests as drivers of lake carbon burial
A significant proportion of carbon (C) captured by terrestrial primary production is buried in lacustrine ecosystems, which have been substantially affected by anthropogenic activities globally. However, there...
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Chapter and Conference Paper
Theoretical Substantiation of Mathematical Models of Oil Filtration Through a Porous Medium
This paper focuses on determining the influence of soil, oil, and environmental factors on the process of oil filtration in a porous medium such as soil. Mathematical modeling of the oil geofiltration process ...
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Article
Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions
Carbon dioxide (CO2) emissions to the atmosphere from running waters are estimated to be four times greater than the total carbon (C) flux to the oceans. However, these fluxes remain poorly constrained because of...
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Article
Spatial and vertical distribution of aerobic and anaerobic dark inorganic carbon fixation in coastal tropical lake sediments
The process of chemosynthesis can represent an important source of organic matter and energy across the benthic zone. However, its detailed vertical distribution and importance in relation to other microbial p...
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Article
Open AccessEvolution of nitrogen cycling in regrowing Amazonian rainforest
Extensive regions of tropical forests are subjected to high rates of deforestation and forest regrowth and both are strongly affect soil nutrient cycling. Nitrogen (N) dynamics changes during forest regrowth a...
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Article
Temporal Variability of Dark Carbon Fixation and Bacterial Production and Their Relation with Environmental Factors in a Tropical Estuarine System
Dark carbon fixation (DCF) is considered an important energy source in aquatic environments, although it has been neglected for a long time. DCF is known to be relevant in ecosystems associated with redoxcline...
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Article
Erratum: Large emissions from floodplain trees close the Amazon methane budget
Nature 552, 230–234 (2017); doi:10.1038/nature24639 (2017) In this Letter, owing to an error during the production process, the surname of author Humberto Marotta was incorrectly listed as ‘Ribeiro’. This has ...
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Article
Large emissions from floodplain trees close the Amazon methane budget
Methane fluxes from the stems of Amazonian floodplain trees indicate that the escape of soil gas through wetland trees is the dominant source of methane emissions in the Amazon basin.
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Article
Sediment Denitrification in Two Contrasting Tropical Shallow Lagoons
Sediment denitrification was monthly evaluated in two tropical coastal lagoons with different trophic states using the 15N isotope pairing technique. Denitrification rates were very low in both environments, alwa...
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Article
Synergistic control of CO2 emissions by fish and nutrients in a humic tropical lake
Using experimental mesocosms, we tested the strength of bottom–up controls by nutrients and top–down controls by an omnivorous fish (Hyphessobrycon bifasciatus; family Characidae), and the interaction between the...
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Article
Short-term spatial and temporal variation of sediment oxygen dynamics in a tropical tidal salt flat
Short-term spatial and temporal heterogeneity of oxygen dynamics and net primary production were studied in a tree day diurnal variation at a tidal tropical salt flat in the estuarine system of Sepetiba/Guarat...
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Article
Long-Term CO2 Variability in Two Shallow Tropical Lakes Experiencing Episodic Eutrophication and Acidification Events
Here we report the long-term (13-year) dynamics of surface pCO2 and its response to episodic eutrophication and acidification events in two contrasting tropical coastal lakes, one clear-water and the other humic....
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Article
Open AccessWhole Ecosystem Evidence of Eutrophication Enhancement by Wetland Dredging in a Shallow Tropical Lake
The purpose of this research was to assess the effects of dredging performed in a marginal wetland colonized by aquatic macrophytes on eutrophication of the adjacent shallow tropical lake (Imboassica Lake, Bra...
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Article
Influence of Hydrological Pulse on Bacterial Growth and DOC Uptake in a Clear-Water Amazonian Lake
This study was conducted to evaluate: (1) the bacterial growth and the dissolved organic carbon (DOC) uptake in an Amazonian lake (Lake Batata) at high-water and low-water periods of the flood pulse; (2) the i...
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Article
The Influence of Bauxite Tailings on the Growth and Development of Oryza glumaepatula in an Amazonian Lake
The influence of bauxite tailings on the growth and development of Oryza glumaepatula was studied in Lake Batata, a clear water lake of the Amazon. Lake Batata is an unusual lake because 30% of its total area was...
