Alexandre B Menezes

Alexandre B Menezes
National University of Ireland, Galway | NUI Galway · Ryan Institute, Department of Microbiology

PhD

About

119
Publications
21,300
Reads
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2,030
Citations
Additional affiliations
April 2012 - December 2014
The Commonwealth Scientific and Industrial Research Organisation
Position
  • PostDoc Position
April 2012 - May 2015
The Commonwealth Scientific and Industrial Research Organisation
Position
  • PostDoc Position
June 2009 - March 2012
University College Dublin
Position
  • PostDoc Position

Publications

Publications (119)
Article
Full-text available
Drought is one of the main problems linked to climate change that is faced by agriculture, affecting various globally important crops, including sugarcane. Environmentally sustainable strategies have been sought to mitigate the effects of climate change on crops. Among them, the use of beneficial microorganisms offers a promising approach. However,...
Article
Full-text available
The diversity and degradation capacity of hydrocarbon-degrading consortia from surface and deep waters of the Eastern Mediterranean Sea were studied in time-series experiments. Microcosms were set up in ONR7a medium at in situ temperatures of 25 °C and 14 °C for the Surface and Deep consortia, respectively, and crude oil as the sole source of carbo...
Article
The production of sugarcane, a globally important crop, is likely to be impacted by changes in climate including higher average temperatures and decreased rainfall in regions such as the northeast and southeast of Brazil. This metatranscriptome study investigated the effect of water stress on the microbiota associated with the sugarcane rhizosphere...
Article
Full-text available
Reliable and accurate oxygen-input control, which is critical to maintaining efficient nitrogen removal performance for partial nitritation-anammox (PN-A) process, remains one of the main operational difficulties. In this study, a novel, yet simple system (a simple process for autotrophic nitrogen-removal, SPAN) with precise oxygen-input control wa...
Article
Full-text available
The composition of the mammalian gut microbiota can be influenced by a multitude of environmental variables such as diet and infections. Studies investigating the effect of these variables on gut microbiota composition often sample across multiple separate populations and habitat types. In this study we explore how variation in the gut microbiota o...
Article
Full-text available
Bioremediation offers a sustainable approach for removal of polycyclic aromatic hydrocarbons (PAHs) from the environment; however, information regarding the microbial communities involved remains limited. In this study, microbial community dynamics and the abundance of the key gene (PAH-RHDα) encoding a ring hydroxylating dioxygenase involved in PA...
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Background The dynamics of phosphorus (P) in the environment is important for regulating nutrient cycles in natural and managed ecosystems and an integral part in assessing biological resilience against environmental change. Organic P (Po) compounds play key roles in biological and ecosystems function in the terrestrial environment being critical t...
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The article “Organic phosphorus in the terrestrial environment: a perspective on the state of the art and future priorities”, written by Timothy S George et al., was originally published with incorrect affiliation information for one of the co-authors, E. Klumpp.
Article
European earthworms have colonised many parts of Australia, although their impact on soil microbial communities remains largely uncharacterised. An experiment was conducted to contrast the responses to Aporrectodea trapezoides introduction between soils from sites with established (Talmo, 64 A. trapezoides m⁻²) and rare (Glenrock, 0.6 A. trapezoide...
Article
Fungi and bacteria are major players in soil biogeochemical cycles, however, most studies linking soil rocesses to microbial function ignore the potential role of interactions between these groups. A small number of studies have used correlation network analyses to investigate fungal–bacterial cooccurrences in soil, and revealed differences, as wel...
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Full-text available
Microbial ecology provides insights into the ecological and evolutionary dynamics of microbial communities underpinning every ecosystem on Earth. Microbial communities can now be investigated in unprecedented detail, although there is still a wealth of open questions to be tackled. Here we identify 50 research questions of fundamental importance to...
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The soil bacterial community at the Giessen free-air CO2 enrichment (Gi-FACE) experiment was analysed by tag-sequencing of the 16S rRNA gene. No substantial effects of CO2 levels on bacterial community composition were detected. However, the soil moisture gradient at Gi-FACE had a significant effect on bacterial community composition. Different gro...
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Ruminant livestock are important sources of human food and global greenhouse gas emissions. Feed degradation and methane formation by ruminants rely on metabolic interactions between rumen microbes and affect ruminant productivity. Rumen and camelid foregut microbial community composition was determined in 742 samples from 32 animal species and 35...
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Abstract Cellulose accounts for approximately half of photosynthesis fixed carbon, however the ecology of its degradation in soil is still relatively poorly understood. The role of actinobacteria in cellulose degradation has not been extensively investigated, despite their abundance in soil and known cellulose degradation capability. Here, the dive...
Article
Network and multivariate statistical analyses were performed to determine interactions between bacterial and fungal community T-RFLPs as well as soil properties in paired woodland and pasture sites. Canonical correspondence analysis (CCA) revealed that shifts in woodland community composition correlated with soil dissolved organic carbon, while cha...
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Soil microbial community response to phenanthrene was evaluated by metatranscriptomics. A marked increase in transcripts involved in aromatic compound metabolism, respiration and stress responses, and concurrent decreases in virulence, carbohydrate, DNA metabolism and phosphorus metabolism transcripts was revealed. Phenanthrene addition led to a 1....
Article
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The relative abundance of micromonosporas in the bacterial communities inhabiting cellulose baits, water columns, and sediments of two freshwater lakes was determined by quantitative PCR (qPCR) of reverse-transcribed 16S rRNA. Micromonospora spp. were shown to be significant members of the active bacterial population colonizing cellulosic substrate...
Article
Full-text available
Understanding rumen microbial ecology is essential for the development of feed systems designed to improve livestock productivity, health and for methane mitigation strategies from cattle. Although rumen microbial communities have been studied previously, few studies have applied next-generation sequencing technologies to that ecosystem. The aim of...
Article
Full-text available
PCR and quantitative PCR (qPCR) primers targeting the 16S rRNA gene were used to detect and quantify members of the genus Fibrobacter in lake water, sediment and colonized cotton taken from two freshwater lakes. Phylogenetic analysis identified two groups of sequences; those clustered with Fibrobacter succinogenes, the type species, and a defined c...