Abstract:
:Microbes perform many costly biological functions that benefit themselves, and may also benefit neighbouring cells. Losing the ability to perform such functions can be advantageous due to cost savings, but when they are essential for growth, organisms become dependent on ecological partners to compensate for those losses. When multiple functions may be lost, the ecological outcomes are potentially diverse, including independent organisms only; one-way dependency, where one partner performs all functions and others none; or mutual interdependency where partners perform complementary essential functions. What drives these different outcomes? We develop a model where organisms perform 'leaky' functions that provide both private and public benefits to explore the consequences of privatization level, costs and essentiality on influencing these outcomes. We show that mutual interdependency is favoured at intermediate levels of privatization for a broad range of conditions. One-way dependency, in contrast, is only favoured when privatization is low and loss-of-function benefits are accelerating. Our results suggest an interplay between privatization level and shape of benefits from loss in driving microbial dependencies. Given the ubiquity of microbial functions that are inevitably leaked and the ease of mutational inactivation, our findings may help to explain why microbial interdependencies are common in nature.
journal_name
Environ Microbioljournal_title
Environmental microbiologyauthors
Estrela S,Morris JJ,Kerr Bdoi
10.1111/1462-2920.13028subject
Has Abstractpub_date
2016-05-01 00:00:00pages
1415-27issue
5eissn
1462-2912issn
1462-2920journal_volume
18pub_type
杂志文章abstract::Filamentous sulphide-oxidizing Beggiatoa spp. often occur in large numbers in the coastal seabed without forming visible mats on the sediment surface. We studied the diversity, population structure and the nitrate-storing capability of such bacteria in the Danish Limfjorden and the German Wadden Sea. Their distributio...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2003.00440.x
更新日期:2003-06-01 00:00:00
abstract::Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing th...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14067
更新日期:2018-04-01 00:00:00
abstract::It has generally been accepted that the formation of granules in anaerobic wastewater treatment systems requires a hydraulic upflow pattern. To evaluate this hypothesis, we operated an anaerobic migrating blanket reactor (AMBR) without a hydraulic upflow pattern, using a synthetic wastewater containing acetate, propio...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2004.00597.x
更新日期:2004-04-01 00:00:00
abstract::As faecal contamination of recreational and drinking water impairs the water quality and threatens public health, water bodies are routinely monitored for faecal coliforms to detect contamination. However, faecal coliforms are facultative anaerobes that survive and reproduce in ambient waters, and their presence does ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01892.x
更新日期:2009-07-01 00:00:00
abstract::It is well recognized that a dynamic biofilm develops upon plant biomass in the herbivore gastrointestinal tract, but this component of the microbiome has not previously been specifically sampled, or directly compared with the biodiversity present in the planktonic fraction of digesta. In this study, the digesta colle...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00721.x
更新日期:2005-04-01 00:00:00
abstract::We investigated the distribution of chloropigments in a small meromictic lake, Lake Kaiike, south-west Japan. In the water-column, concentrations of Chl a related to cyanobacteria, BChl a related to purple sulphur bacteria, and three types of BChl e homologues (BChls e1, e2 and e3) related to brown-coloured green sulp...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2003.00517.x
更新日期:2003-11-01 00:00:00
abstract::Iron is the most abundant redox-active metal in the Earth's crust. The one electron transfer between the two most common redox states, Fe(II) and Fe(III), plays a role in a huge range of environmental processes from mineral formation and dissolution to contaminant remediation and global biogeochemical cycling. It has ...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.14328
更新日期:2018-10-01 00:00:00
abstract::In this study, the ability of the geoactive fungus Aspergillus niger to colonize and transform manganese nodules from the Clarion-Clipperton Zone in both solid and liquid media was investigated. Aspergillus niger was able to colonize and penetrate manganese nodules embedded in solid medium and effect extensive transfo...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14591
更新日期:2019-05-01 00:00:00
abstract::The HprK serine kinase is a component of the phosphoenolpyruvate phosphotransferase system (PTS) of bacteria that generally regulates catabolite repression through phosphorylation/dephosphorylation of the PTS protein PtsH at a conserved serine residue. However, many bacteria do not encode a complete PTS or even have a...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14740
更新日期:2019-12-01 00:00:00
abstract::Multiprotein bridging factors (MBFs) are evolutionarily highly conserved cofactors that link TATA-binding protein and the associated basal transcription machinery to transcription factors. The filamentous fungus, Beauveria bassiana, has a multipotential lifestyle capable of growing as a saprophyte, plant endophyte and...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12450
更新日期:2014-06-01 00:00:00
abstract::Saccharomyces cerevisiae protein kinase Sch9 is one of the downstream effectors of the target of rapamycin (TOR) complex 1 and plays multiple roles in stress resistance, longevity and nutrient sensing. However, the functions of Sch9 orthologs in filamentous fungi, particularly in pathogenic species, have not been char...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12522
更新日期:2015-08-01 00:00:00
abstract::MerF, a proposed bacterial mercury transporter, was surprisingly found to play key roles in the flagellum biogenesis and motility but not mercuric resistance of the deep-sea bacterium Pseudomonas stutzeri 273 in our previous study. However, the mechanism behind this interesting discovery has not been elucidated. Here,...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15275
更新日期:2021-01-01 00:00:00
abstract::How to explore protein sequence space efficiently and how to generate high-quality mutant libraries that allow to identify improved variants with current screening technologies are key questions for any directed protein evolution experiment. High-quality mutant libraries can be generated through improved random mutage...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/j.1462-2920.2007.01411.x
更新日期:2007-11-01 00:00:00
abstract::More effective control of membrane biofouling in membrane bioreactors (MBRs) lies in the fundamental understanding of the pioneer microorganisms responsible for surface colonization that leads to biofilm formation. In this study, the composition of the planktonic and sessile microbial communities inhabiting four labor...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00909.x
更新日期:2006-03-01 00:00:00
abstract::Specialized organotrophic Bacteria 'syntrophs' and methanogenic Archaea 'methanogens' form a unique metabolic interaction to accomplish cooperative mineralization of organic compounds to CH4 and CO2 . Due to challenges in cultivation of syntrophs, mechanisms for how their organotrophic catabolism circumvents thermodyn...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13922
更新日期:2017-11-01 00:00:00
abstract::The Black Sea chemocline represents the largest extant habitat of anoxygenic phototrophic bacteria and harbours a monospecific population of Chlorobium phylotype BS-1. High-sensitivity measurements of underwater irradiance and sulfide revealed that the optical properties of the overlying water column were similar acro...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2010.02178.x
更新日期:2010-05-01 00:00:00
abstract::A common bacterial strategy for monitoring environmental challenges is to use two-component systems, which consist of a sensor histidine kinase (HK) and a response regulator (RR). In the food-borne pathogen Bacillus cereus, the alternative sigma factor sigma(B) is activated by the RR RsbY. Here we present strong indic...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02116.x
更新日期:2010-03-01 00:00:00
abstract::Molecular approaches have revealed considerable diversity and uncultured novelty in natural prokaryotic populations, but not direct links between the new genotypes detected and ecosystem processes. Here we describe the influence of the structure of communities of ammonia-oxidizing bacteria on nitrogen cycling in micro...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00740.x
更新日期:2005-05-01 00:00:00
abstract::In vitro studies in plant, soil, and human systems have shown that microbial volatiles can mediate microbe-microbe or microbe-host interactions. These previous studies have often used artificially high concentrations of volatiles compared to in situ systems and have not demonstrated the roles volatiles play in mediati...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15223
更新日期:2020-11-01 00:00:00
abstract::Pathogenic bacteria associated with freshwater ecosystems can pose significant health risks particularly where recreational water use is popular. Common water quality assessments involve quantifying indicator Escherichia coli within the water column but neglect to consider physical and geochemical factors and contribu...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14860
更新日期:2020-02-01 00:00:00
abstract::High-throughput sequencing (HTS) surveys, among the most common approaches currently used in environmental microbiology, require reliable reference databases to be correctly interpreted. The EukRef Initiative (eukref.org) is a community effort to manually screen available small subunit (SSU) rRNA gene sequences and pr...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14264
更新日期:2018-06-01 00:00:00
abstract::Methanogenesis was characterized in hypersaline microbial mats from Guerrero Negro, Baja California Sur, Mexico both in situ and after long-term manipulation in a greenhouse environment. Substrate addition experiments indicate methanogenesis to occur primarily through the catabolic demethylation of non-competitive sub...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01459.x
更新日期:2008-02-01 00:00:00
abstract::Nitrogen (N) deposition affects myriad aspects of terrestrial ecosystem structure and function, and microbial communities may be particularly sensitive to anthropogenic N inputs. However, our understanding of N deposition effects on microbial communities is far from complete, especially for drylands where data are com...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13678
更新日期:2017-04-01 00:00:00
abstract::The ascidian Cystodytes dellechiajei (Della Valle, 1877) (phylum Chordata, class Ascidiacea, family Polycitoridae) is a colonial tunicate that inhabits benthic rock environments in the Atlantic, Pacific and Indian Oceans, as well as the Mediterranean Sea. Its life cycle has two phases, the adult sessile colony and the...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2006.01170.x
更新日期:2007-02-01 00:00:00
abstract::Marine Crenarchaeota represent an abundant component of the oceanic microbiota that play an important role in the global nitrogen cycle. Here we report the association of the colonial ascidian Cystodytes dellechiajei with putative ammonia-oxidizing Crenarchaeota that could actively be involved in nitrification inside ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01761.x
更新日期:2008-11-01 00:00:00
abstract::Serratia sp. ATCC 39006 produces intracellular gas vesicles to enable upward flotation in water columns. It also uses flagellar rotation to swim through liquid and swarm across semi-solid surfaces. Flotation and motility can be co-regulated with production of a β-lactam antibiotic (carbapenem carboxylate) and a linear...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15048
更新日期:2020-07-01 00:00:00
abstract::Atypical, strongly haemolytic porcine isolates of intestinal spirochaetes differing genetically from Brachyspira hyodysenteriae were identified and characterized. The isolates were subjected to culture and biochemical tests, antimicrobial susceptibility testing and molecular analyses. None of four species-specific pol...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2006.01220.x
更新日期:2007-04-01 00:00:00
abstract::Over the last 15 years classical culturing and environmental PCR techniques have revealed a modest number of genuinely new major lineages of protists; however, some new groups have greatly influenced our understanding of eukaryote evolution. We used culturing techniques to examine the diversity of free-living protists...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2010.02239.x
更新日期:2010-10-01 00:00:00
abstract::Stable carbon isotope signatures of diagnostic lipid biomarkers have suggested that Roseiflexus spp., the dominant filamentous anoxygenic phototrophic bacteria inhabiting microbial mats of alkaline siliceous hot springs, may be capable of fixing bicarbonate via the 3-hydroxypropionate pathway, which has been character...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01323.x
更新日期:2007-08-01 00:00:00
abstract::Pseudomonas putida mt-2 metabolizes m-xylene and other aromatic compounds through the enzymes encoded by the xyl operons of the TOL plasmid pWW0 along with other chromosomally encoded activities. Tiling arrays of densely overlapping oligonucleotides were designed to cover every gene involved in this process, allowing ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13054
更新日期:2016-10-01 00:00:00