LEADER 03308nam 2200469z- 450 001 9910261140603321 005 20210211 035 $a(CKB)4100000002484686 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/50010 035 $a(oapen)doab50010 035 $a(EXLCZ)994100000002484686 100 $a20202102d2017 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aThe Impact of Microorganisms on Consumption of Atmospheric Trace Gases 210 $cFrontiers Media SA$d2017 215 $a1 online resource (201 p.) 225 1 $aFrontiers Research Topics 311 08$a2-88945-326-X 330 $aGases with a mixing ratio of less than one percent in the lower atmosphere (i.e. the troposphere) are considered as trace gases. Numerous of these trace gases originate from biological processes in marine and terrestrial ecosystems. These gases are of relevance for the climate as they contribute to global warming or to the troposphere's chemical reactive system that builds the ozone layer or they impact on the stability of aerosols, greenhouse, and pollutant gases. These reactive trace gases include methane, a multitude of volatile organic compounds of biogenic origin (bVOCs) and inorganic gases such as nitrogen oxides or ozone. The regulatory function of microorganisms for trace gas cycling has been intensively studied for the greenhouse gases nitrous oxide and methane, but is less well understood for microorganisms that metabolize molecular hydrogen, carbon monoxide, or bVOCs. The studies compiled in this Research Topic reflect this very well. While a number of articles focus on nitrous oxide and methane or carbon monoxide oxidation, only a few articles address conversion processes of further bVOCs. The Research Topic is complemented by three review articles about the consumption of methane and monoterpenes, as well as the role of the phyllosphere as a particular habitat for trace gas-consuming microorganisms, and point out future research directions in the field. The presented scientific work illustrates that the field of microbial regulation of trace glas fluxes is still in its infancy when one broadens the view on gases beyond methane and nitrous oxide. However, there is a societal need to better predict global dynamics of trace gases that impact on the functionality and warming of the troposphere. Upcoming modelling approaches will need further information on process rates, features and distribution of the driving microorganisms to fulfill this demanding task. 606 $aMicrobiology (non-medical)$2bicssc 610 $abVOCs 610 $acarbon monoxide 610 $adenitrification 610 $amethane 610 $amethanotroph 610 $anitrous oxide 610 $aphyllosphere 610 $atrace gases 610 $avolatile organic compounds 615 7$aMicrobiology (non-medical) 700 $aClaudia Knief$4auth$01326382 702 $aJ. Colin Murrell$4auth 702 $aMarcus A. Horn$4auth 702 $aSteffen Kolb$4auth 906 $aBOOK 912 $a9910261140603321 996 $aThe Impact of Microorganisms on Consumption of Atmospheric Trace Gases$93037407 997 $aUNINA LEADER 03825nam 2200481z- 450 001 9910220047103321 005 20210211 035 $a(CKB)3800000000216306 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/47158 035 $a(oapen)doab47158 035 $a(EXLCZ)993800000000216306 100 $a20202102d2016 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aThe Evolving Telomeres 210 $cFrontiers Media SA$d2016 215 $a1 online resource (74 p.) 225 1 $aFrontiers Research Topics 311 08$a2-88919-881-2 330 $aWhat controls the different rates of evolution to give rise to conserved and divergent proteins and RNAs? How many trials until evolution can adapt to physiological changes? Every organism has arisen through multiple molecular changes, and the mechanisms that are employed (mutagenesis, recombination, transposition) have been an issue left to the elegant discipline of evolutionary biology. But behind the theory are realities that we have yet to ascertain: How does an evolving cell accommodate its requirements for both conserving its essential functions, while also providing a selective advantage? In this volume, we focus on the evolution of the eukaryotic telomere, the ribo-nuclear protein complex at the end of a linear chromosome. The telomere is an example of a single chromosomal element that must function to maintain genomic stability. The telomeres of all species must provide a means to avoid the attrition from semi-conservative DNA replication and a means of telomere elongation (the telomere replication problem). For example, telomerase is the most well-studied mechanism to circumvent telomere attrition by adding the short repeats that constitutes most telomeres. The telomere must also guard against the multiple activities that can act on an unprotected double strand break requiring a window (or checkpoint) to compensate for telomere sequence loss as well as protection against non-specific processes (the telomere protection problem). This volume describes a range of methodologies including mechanistic studies, phylogenetic comparisons and data-based theoretical approaches to study telomere evolution over a broad spectrum of organisms that includes plants, animals and fungi. In telomeres that are elongated by telomerases, different components have widely different rates of evolution. Telomerases evolved from roots in archaebacteria including splicing factors and LTR-transposition. At the conserved level, the telomere is a rebel among double strand breaks (DSBs) and has altered the function of the highly conserved proteins of the ATM pathway into an elegant means of protecting the chromosome end and maintaining telomere size homeostasis through a competition of positive and negative factors. This homeostasis, coupled with highly conserved capping proteins, is sufficient for protection. However, far more proteins are present at the telomere to provide additional species-specific functions. Do these proteins provide insight into how the cell allows for rapid change without self-destruction? 606 $aGenetics (non-medical)$2bicssc 610 $aArabidopsis 610 $aCandida Saccharomyces 610 $aevolution 610 $aIncRNA 610 $aModel 610 $aparalog 610 $aretrotransposons 610 $at-loops 610 $aTelomere 610 $aTERL proteins 610 $aTRF proteins 610 $aVertebrates 615 7$aGenetics (non-medical) 700 $aKurt Runge$4auth$0510557 702 $aArthur J. Lustig$4auth 906 $aBOOK 912 $a9910220047103321 996 $aThe Evolving Telomeres$93040853 997 $aUNINA