MicrobiologyOpen Issue 3:1 Published Online

MicrobiologyOpenMicrobiologyOpen has published its latest online issue. 13 new articles are fully open access: free to read, download and share.

MicrobiologyOpen is a broad scope, peer reviewed journal delivering rapid decisions and fast publication of microbial science.  The journal gives priority to reports of quality research, pure or applied, that further our understanding of microbial interactions and microbial processes.

Editor-in-Chief, Pierre Cornelis has highlighted the papers below as of particular interest:

purple_lock_openUnsuspected pyocyanin effect in yeast under anaerobiosis
Rana Barakat, Isabelle Goubet, Stephen Manon, Thierry Berges and Eric Rosenfeld

Summary: Toxicity of pyocyanin (PYO) was investigated under aerobiosis and anaerobiosis in several wild-type and mutant strains of the yeast Saccharomyces cerevisiae and also in Candida albicans. PYO is toxic for actively respiring cells but its toxicity was found to be important and even higher under anaerobiosis. This indicates that PYO effect can be mediated by other phenomenon than oxidative stress and respiratory disturbance.

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Serum influences the expression of Pseudomonas aeruginosa quorum-sensing genes and QS-controlled virulence genes during early and late stages of growth
Cassandra Kruczek, Uzma Qaisar, Jane A. Colmer-Hamood and Abdul N. Hamood

Summary: In this study, we demonstrated that serum reduces the expression of different QS genes at early stages of growth but increases their expression at late stages of growth of P. aeruginosa. A similar phenomenon was observed regarding the production of autoinducers and the expression of QS-controlled virulence genes. Serum also differentially regulated the expression several positive and negative regulators of the QS systems. While the mechanism by which serum affects QS at early stage of growth is not yet known, our results suggest that serum accomplishes its effect at late stages of growth through the virulence factor regulator vfr

purple_lock_openVisualization of VirE2 protein translocation by the Agrobacterium type IV secretion system into host cells
Philippe A. Sakalis, G. Paul H. van Heusden and Paul J. J. Hooykaas

Summary: Here we report the direct visualization of VirE2 protein translocation from Agrobacterium into host cells. To this end we cocultivated Agrobacterium strains expressing VirE2 tagged with one part of a fluorescent protein with host cells expressing the complementary part. Fluorescent filaments became visible in recipient cells 20-25 hours after the start of the cocultivation indicative of VirE2 protein translocation.

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MicrobiologyOpen Issue 3:1 Published Online

MicrobiologyOpenMicrobiologyOpen has published its latest online issue. 13 new articles are fully open access: free to read, download and share.

MicrobiologyOpen is a broad scope, peer reviewed journal delivering rapid decisions and fast publication of microbial science.  The journal gives priority to reports of quality research, pure or applied, that further our understanding of microbial interactions and microbial processes.

Editor-in-Chief, Pierre Cornelis has highlighted the papers below as of particular interest:

purple_lock_openUnsuspected pyocyanin effect in yeast under anaerobiosis
Rana Barakat, Isabelle Goubet, Stephen Manon, Thierry Berges and Eric Rosenfeld

Summary: Toxicity of pyocyanin (PYO) was investigated under aerobiosis and anaerobiosis in several wild-type and mutant strains of the yeast Saccharomyces cerevisiae and also in Candida albicans. PYO is toxic for actively respiring cells but its toxicity was found to be important and even higher under anaerobiosis. This indicates that PYO effect can be mediated by other phenomenon than oxidative stress and respiratory disturbance.

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Serum influences the expression of Pseudomonas aeruginosa quorum-sensing genes and QS-controlled virulence genes during early and late stages of growth
Cassandra Kruczek, Uzma Qaisar, Jane A. Colmer-Hamood and Abdul N. Hamood

Summary: In this study, we demonstrated that serum reduces the expression of different QS genes at early stages of growth but increases their expression at late stages of growth of P. aeruginosa. A similar phenomenon was observed regarding the production of autoinducers and the expression of QS-controlled virulence genes. Serum also differentially regulated the expression several positive and negative regulators of the QS systems. While the mechanism by which serum affects QS at early stage of growth is not yet known, our results suggest that serum accomplishes its effect at late stages of growth through the virulence factor regulator vfr

purple_lock_openVisualization of VirE2 protein translocation by the Agrobacterium type IV secretion system into host cells
Philippe A. Sakalis, G. Paul H. van Heusden and Paul J. J. Hooykaas

Summary: Here we report the direct visualization of VirE2 protein translocation from Agrobacterium into host cells. To this end we cocultivated Agrobacterium strains expressing VirE2 tagged with one part of a fluorescent protein with host cells expressing the complementary part. Fluorescent filaments became visible in recipient cells 20-25 hours after the start of the cocultivation indicative of VirE2 protein translocation.

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Read the February Issue of Evolutionary Applications Online!

eva_7_2_coverThe February Issue of Evolutionary Applications has been published online. This issue features an image of a lone grizzly bear in Alberta, Canada, which relates to a study by Shafer and colleagues linking the genotype, ecotype, and phenotype in grizzly bears (Ursus arctos). Toward this end, this issue also launches a new series of research highlights that will offer brief synopses of new work with direct relevance to readers of Evolutionary Applications from across other journals with the aim of exploring the breadth of potential applications of evolutionary theory from across fields and disciplines. The Editor-in-Chief Louis Bernatchez has highlighted the following articles as of particular interest:

purple_lock_open Genomic selection for recovery of original genetic background from hybrids of endangered and common breeds by Carmen Amador, Ben J. Hayes and Hans D. Daetwyler

Summary: The authors present two genomic selection strategies, employing genome-wide DNA markers, to recover the genomic content of the original endangered population from admixtures. They also compare the efficiency of both strategies using empirical 50K SNP array data from sheep breeds.

purple_lock_open Anthropogenic selection enhances cancer evolution in Tasmanian devil tumours by Beata Ujvari, Anne-Maree Pearse, Kate Swift, Pamela Hodson, Bobby Hua, Stephen Pyecroft, Robyn Taylor, Rodrigo Hamede, Menna Jones, Katherine Belov and Thomas Madsen

Summary: The Tasmanian Devil Facial Tumour Disease (DFTD) provides a unique opportunity to study cancer evolution in vivo. Since it was first observed in 1996, this transmissible cancer has caused local population declines by 90%. In this study the authors focus on the evolutionary response of DFTD to a disease suppression trial.  The results reveal that DFTD has the capacity to rapidly respond to novel human-induced selective regimes and that disease eradication may result in novel tumour adaptations.

purple_lock_open Linking genotype, ecotype, and phenotype in an intensively managed large carnivore by Aaron B. A. Shafer, Scott E. Nielsen, Joseph M. Northrup and Gordon B. Stenhouse

Summary: In this study, integrated GPS habitat use data and genetic profiling were used to determine the influence of habitat and genetics on fitness proxies (mass, length, and body condition) in a threatened population of grizzly bears (Ursus arctos) in Alberta, Canada. The authors found that homozygosity had a positive effect on fitness these proxies, which may be indicative of outbreeding depression unintentionally caused by massive translocations of bears over large geographic distances.

We encourage you to submit papers applying concepts from evolutionary biology to address biological questions of health, social and economic relevance across a vast array of applied disciplines. We also welcome submissions of papers making use of modern genomics or other molecular methods to address important questions in an applied evolutionary framework. For more information please visit the aims and scopes page.

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Evolutionary Applications SPECIAL ISSUE: Climate change, adaptation and phenotypic plasticity

eva_v7_i1_OC_RevThe January Special issue of Evolutionary Applications edited by guest editors Juha Merilä and Andrew Hendry, reviews the available literature that studies the responses to climate change in a large variety of taxa, including terrestrial and aquatic phytoplankton, plants and invertebrates, as well as all classes of vertebrates, including fish, amphibians, reptiles birds and mammals. Clearly this Special Issue is the most updated and exhaustive coverage on this crucial topic. The cover image features a collage highlighting some of the species that have been the subject of focus in this issue for their response to climate change. The Editor-in-Chief Louis Bernatchez has highlighted the following Special Issue articles as of particular interest:

purple_lock_open Climate change, adaptation, and phenotypic plasticity: the problem and the evidence
by Juha Merilä and Andrew P. Hendry

Summary:
This perspective article examines the levels of inference employed in studies where recorded phenotypic changes in natural populations have been attributed to climate change. Based on the reviews from this Special Issue, Merilä and Hendry conclude that evidence for genetic adaptation to climate change has been found in some systems, but remains relatively scarce compared to evidence for phenotypic plasticity. It is apparent that additional studies employing better inferential methods are required before drawing further conclusions.

purple_lock_openRapid evolution of quantitative traits: theoretical perspectives by Michael Kopp and Sebastian Matuszewski

Summary:
 In this review and syntheses article the authors review the theoretical models of rapid evolution in quantitative traits, to shed light on the potential for adaptation to climate change. In particular, the authors demonstrate how survival can be greatly facilitated by phenotypic plasticity, and how heritable variation in plasticity can further speed up genetic evolution.

purple_lock_open Climate warming and Bergmann’s rule through time: is there any evidence? by Celine Teplitsky and Virginie Millien

Summary:
In this article the authors investigate the hypothesis that the climate warming causes a reduction in body size. This hypothesis originates from Bergmann’s rule, whereby species in warmer climates exhibit a smaller body size when compared to endotherms found in colder climates. Reviewing the literature the authors find weak evidence for changes in body size through time as predicted by Bergmann’s rule.

We do hope you enjoy reading this month’s Special Issue, and encourage you to submit papers applying concepts from evolutionary biology to address biological questions of health, social and economic relevance across a vast array of applied disciplines. We also welcome submissions of papers making use of modern genomics or other molecular methods to address important questions in an applied evolutionary framework. For more information please visit the aims and scopes page.

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Evolutionary Applications Publishes issue 6.8

EVA-issue-6-8The December issue of Evolutionary Applications has been published online. The issue features an image of Whitefish (Coregonus macrophthalmus) on its cover pertaining to a study by Hirsch and colleagues on potential for future divergence in restored aquatic habitats.  The Editor-in-Chief: Louis Bernatchez has also highlighted the following articles as of particularly interest:

purple_lock_open Dynamics of growth factor production in monolayers of cancer cells and evolution of resistance to anticancer therapies
by Marco Archetti
Summary: In this article the authors use evolutionary game theory to study the dynamics of the production of growth factors by monolayers of cancer cells and to understand the effect of therapies that target growth factors.

purple_lock_open Herbicide-resistant weeds: from research and knowledge to future needs by Roberto Busi, Martin M. Vila-Aiub, Hugh J. Beckie, Todd A. Gaines, Danica E. Goggin, Shiv S. Kaundun, Myrtille Lacoste, Paul Neve, Scott J. Nissen, Jason K. Norsworthy, Michael Renton, Dale L. Shaner, Patrick J. Tranel, Terry Wright, Qin Yu and Stephen B. Powles

Summary: In this Perspective article the authors explore the areas and highlight future challenges of synthetic herbicide resistance research towards integrated and (evolutionary) sustainable weed management in major field crops.

purple_lock_open The effects of synthetic estrogen exposure on premating and postmating episodes of selection in sex-role-reversed Gulf pipefish by Emily Rose, Kimberly A. Paczolt and Adam G. Jones

Summary: In this study the authors aimed to understand the effects of a synthetic estrogen (EE2) exposure on the sex-role-reversed mating system in pipefish and the resulting strength of selection in Gulf pipefish.

As always, we are keen to encourage papers applying concepts from evolutionary biology to address biological questions of health, social and economic relevance across a vast array of applied disciplines, and also strongly encourage submissions of papers making use of modern genomics or other molecular methods to address important questions in an applied evolutionary framework. For more information please visit the aims and scopes page.

Submit your article to Evolutionary Applications here >

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MicrobiologyOpen Publishes Issue 2:6

MicrobiologyOpenThe December issue of MicrobiologyOpen can be viewed online now!

MicrobiologyOpen is a broad scope, peer reviewed journal delivering rapid decisions and fast publication of microbial science.  The journal gives priority to reports of quality research, pure or applied, that further our understanding of microbial interactions and microbial processes.

Editor-in-Chief, Pierre Cornelis has highlighted the papers below from the latest issue:

purple_lock_openDeveloping an international Pseudomonas aeruginosa reference panel
Anthony De Soyza, Amanda J. Hall, Eshwar Mahenthiralingam, Pavel Drevinek, Wieslaw Kaca, Zuzanna Drulis-Kawa, Stoyanka R. Stoitsova, Veronika Toth, Tom Coenye, James E. A. Zlosnik, Jane L. Burns, Isabel Sá-Correia, Daniel De Vos, Jean-Paul Pirnay, Timothy J. Kidd, David Reid, Jim Manos, Jens Klockgether, Lutz Wiehlmann, Burkhard Tümmler, Siobhán McClean, Craig Winstanley

Summary: Pseudomonas aeruginosa is a major opportunistic pathogen, especially in relation to cystic fibrosis. In this study a panel of 43 P.aeruginosa strains designed to reflect the diversity of this pathogen were collated.

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Canonical and non-canonical EcfG sigma factors control the general stress response in Rhizobium etli
Ann Jans, Maarten Vercruysse, Shanjun Gao, Kristof Engelen, Ivo Lambrichts, Maarten Fauvart, Jan Michiels

Summary: This work explores the hierarchical relation between Rhizobium etli extracytoplasmic function sigma factors ?EcfG1 and ?EcfG2, core components of the general stress response. The authors propose a modified model for general stress response regulation in R. etli as they find that, contrary to reports in other species, ?EcfG1 and ?EcfG2 act in parallel, as nodes of a complex regulatory network, rather than in series, as elements of a linear regulatory cascade. Based on a phylogenetic analysis and considering the prevalence of ?-proteobacterial genomes with multiple ?EcfG copies, this model may also be applicable to numerous other species. 

purple_lock_openMolecular analysis of the UV-inducible pili operon from Sulfolobus acidocaldarius
Marleen van Wolferen, Ma?gorzata Ajon, Arnold J. M. Driessen, Sonja-Verena Albers

Summary: This study is an in depth analysis of the UV inducible pili system of S. acidocaldarius which is used as a community based DNA repair system. Except for UpsX, all other components of the ups pili are essential for pili formation and DNA exchange.

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MicrobiologyOpen Publishes Issue 2:5

MicrobiologyOpenYou can read Issue 2:5 of MicrobiologyOpen online now!

MicrobiologyOpen is a broad scope, peer reviewed journal delivering rapid decisions and fast publication of microbial science.  The journal gives priority to reports of quality research, pure or applied, that further our understanding of microbial interactions and microbial processes.

Editor-in-Chief, Pierre Cornelis has highlighted the papers below from the latest issue as of particular interest:

purple_lock_openTusA (YhhP) and IscS are required for molybdenum cofactor-dependent base-analog detoxification
Stanislav G. Kozmin, Elena I. Stepchenkova and Roel M. Schaaper

Summary: We show that Escherichia coli mutants deficient in the sulfurtransferase TusA or the cysteine desulfurase IscS are hypersensitive to the toxic effects of the adenine analog 6-N-hydroxylaminopurine (HAP). This sensitivity is similar to and epistatic with the HAP sensitivity of moa mutants, which defective in biosynthesis of the molybdenum cofactor (Moco). Our results suggest that TusA and IscS are critical for the insertion of the dithiolene sulfurs in Moco that coordinate the molybdenum atom.

purple_lock_openA mutation in the promoter region of zipA, a component of the divisome, suppresses the shape defect of RodZ-deficient cells
Daisuke Shiomi and Hironori Niki

Summary: We studied the mechanism by which a mutation in the promoter of zipA, which encodes a component of the cell division machinery, restores rod shape in RodZ-deficient E. coli cells. ZipA was slightly increased in the suppressor cells and led to a delay in cell division. Round-shaped rodZ mutants retained cell bipolarity, suggesting that a delay in the completion of septation may provide extra time to elongate the cell laterally.

purple_lock_openNitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea
Laia Pedro-Roig, Christian Lange, María José Bonete, Jörg Soppa and Julie Maupin-Furlow

Summary: Here, we report that amtB-glnK operons are highly cotranscribed during conditions of dissimilatory nitrate reduction in Haloferax mediterranei. Furthermore, the GlnK PII regulatory proteins associate with AmtB-type transporters in the membrane of this archaeon after ammonia shock presumably to block ammonia uptake.

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Evolutionary Applications Publishes Issue 6.7 Online

EVA 6 7 CoverThe November online issue of Evolutionary Applications has been published. The cover image  features the restored intermountain grassland at the base of the Bear River Range of the Wasatch Mountains, Utah, USA. The editor in Editor-in-Chief Louis Bernatchez has highlighted the following articles, which use evolutionary biology to address questions of practical importance, as of particular interest:

purple_lock_open Investigating the genetics of Bti resistance using mRNA tag sequencing: application on laboratory strains and natural populations of the dengue vector Aedes aegypti by Margot Paris, Sebastien Marcombe, Eric Coissac, Vincent Corbel, Jean-Philippe David and Laurence Després
Summary: This study investigates the genetics of Bti resistance in Aedes aegypti  using SNP polymorphism within cDNA tag sequences.  The authors showed SNPs  identified in  laboratory strains are transferable to natural populations, and that the same genomic regions are, to varying degrees, differentiated between laboratory strains. The findings suggest that most of the genes associated with resistance differ between laboratory and natural environments but common selected regions might also harbour key genes for Bti resistance.

purple_lock_open Back to the future: evolving bacteriophages to increase their effectiveness against the pathogen Pseudomonas aeruginosa PAO1 by Alex Betts, Marie Vasse, Oliver Kaltz and Michael E. Hochberg
Summary: The authors used Pseudomonas aeruginosa to evolve four different phage isolates though 6 serial transfers to produce a “superphage”, and showed that bacteria evolve a degree of resistance and cross-resistance to a foreign phage. The use of evolutionary engineering to develop “superphages” could be effective way to combat bacterial infections in hospitals, whilst reducing the risk of bacterial resistance compared to conventional methods.

purple_lock_open Assessing strategies to minimize unintended fitness consequences of aquaculture on wild populations by Marissa L. Baskett, Scott C. Burgess and Robin S. Waples
Summary: In this study, a model of coupled genetic and demographic dynamics has been used to evaluate alternative management approaches to minimizing unintended fitness consequences of aquaculture escapees. Results  highlight the importance of the timing of aquaculture escape, and that reducing aquaculture escapees through low-level leakage is more effective than reducing an analogous number of escapees from large, rare pulses.

As always, we are keen to encourage papers applying concepts from evolutionary biology to address biological questions of health, social and economic relevance across a vast array of applied disciplines, and also strongly encourage submissions of papers making use of modern genomics or other molecular methods to address important questions in an applied evolutionary framework. For more information please visit the aims and scopes page.

Submit your article to Evolutionary Applications here >

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Evolutionary Applications Publishes issue 6.6

EVA 6 6 facebookEvolutionary Applications has published its latest online issue addressing topics relevant to evolutionary biology such as conservation biology, disease biology and agriculture.

The cover image for this issue features a leopard hiding in the foliage in Kanha Tiger Reserve, India.

The Editor-in-Chief Louis Bernatchez has highlighted the following articles as of particular interest:

purple_lock_open Predicting bird song from space by Thomas Smith, Ryan Harrigan, Alexander Kirschel, Wolfgang Buermann, Sassan Saatchi, Daniel Blumstein, Selvino de Kort and Hans Slabbekoorn
Summary: This article investigates the use of remote-sensing data to predict the song characteristics of a widely distributed African passerine, the little greenbul (Andropadus virens). This work provides a link between large-scale remotely sensed environmental variables and observations of behavior that have applications to evolutionary and conservation biology.

purple_lock_open Fight evolution with evolution: plasmid-dependent phages with a wide host range to prevent the spread of antibiotic resistance by Ville Ojala, Jarkko Laitalainen and Matti Jalasvuori
Summary: This study investigates whether it is possible to prevent the spread of antibiotic resistance using a lytic bacteriophage capable of replication in a wide range of gram negative bacteria harbouring conjugative drug resistance. The authors conclude that, while it is necessary to maintain the selection for spread of drug resistances, fighting bacterial evolution with counter-selective attempts could be beneficial in the battle against drug resistance.

purple_lock_open The ‘Dr Jekyll and Mr Hyde fungus’: noble rot versus gray mold symptoms of Botrytis cinerea on grapes by Elisabeth Fournier, Pierre Gladieux and Tatiana Giraud
Summary: In this article the authors used genotyping and clustering analyses to sample isolates of the ascomycete Botrytis cinerea fungus, to determine whether isolates sampled from three French regions with noble rot versus gray mold symptoms belong to genetically different populations. This study indicates that noble rot symptoms are not specific to certain B.cinerea populations but instead seem to depend on microclimatic conditions.

We are keen to encourage papers applying concepts from evolutionary biology to address biological questions of health, social and economic relevance across a vast array of applied disciplines, and also strongly encourage submissions of papers making use of modern genomics or other molecular methods to address important questions in an applied evolutionary framework. For more information please visit the aims and scopes page.

Submit your article to Evolutionary Applications here >

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