Abstract:
:The effect of the plasmid-encoded rulAB (resistance to ultraviolet radiation) determinant on responses of Pseudomonas syringae to ultraviolet-B (UV-B) radiation and the distribution of rulAB among pathovars of P. syringae were determined. The cloned rulAB determinant and the native rulAB+ plasmid pPSR1 both conferred approximately a 10-fold increase in survival on P. syringae pv. syringae FF5 following increasing doses of UV-B radiation. rulAB+ P. syringae strains also maintained significantly larger epiphytic populations on leaf surfaces irradiated with UV-B. rulAB-insertional mutants, constructed in two native rulAB+ strains, were from 10- to 100-fold more sensitive to UV-B radiation. The UV tolerance phenotype and the rulAB genes were widely distributed among P. syringae pathovars isolated from varied plant hosts throughout the world and within a broad range of genotypic backgrounds of P. syringae pv. syringae. With one exception, the rulAB determinant was harboured on pPT23A-like plasmids; these replicons are indigenous residents of the species P. syringae and also tend to encode determinants of importance in host-pathogen interactions.
journal_name
Environ Microbioljournal_title
Environmental microbiologyauthors
Sundin GW,Murillo Jdoi
10.1046/j.1462-2920.1999.00008.xkeywords:
subject
Has Abstractpub_date
1999-02-01 00:00:00pages
75-87issue
1eissn
1462-2912issn
1462-2920pii
emi8journal_volume
1pub_type
杂志文章abstract::Ammonia-oxidizing bacteria (AOB) have long been considered key to the removal of nitrogen in activated sludge bioreactors. Culture-independent molecular analyses have established that AOB lineages in bioreactors are dynamic, but the underlying operational or environmental factors are unclear. Furthermore, the contribu...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01958.x
更新日期:2009-09-01 00:00:00
abstract::Microorganisms that thrive in acidic environments are endowed with specialized molecular mechanisms to survive under this extremely harsh condition. In this work, we performed functional screening of six metagenomic libraries from planktonic and rhizosphere microbial communities of the Tinto River, an extremely acidic...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12021
更新日期:2013-04-01 00:00:00
abstract::Recent scenarios of fresh produce contamination by human enteric pathogens have resulted in severe food-borne outbreaks, and a new paradigm has emerged stating that some human-associated bacteria can use plants as secondary hosts. As a consequence, there has been growing concern in the scientific community about these...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13389
更新日期:2016-12-01 00:00:00
abstract::Marinobacter santoriniensis NKSG1(T) is a mesophilic, dissimilatory arsenate-reducing and arsenite-oxidizing bacterium isolated from an arsenate-reducing enrichment culture. The inoculum was obtained from arsenic-rich shallow marine hydrothermal sediment from Santorini, Greece, with evidence of arsenic redox cycling. ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01890.x
更新日期:2009-06-01 00:00:00
abstract::Variations in the patterns of diversity of symbionts have been described worldwide on Mimosa pudica, a pan-tropical invasive species that interacts with both α and β-rhizobia. In this study, we investigated if symbiont competitiveness can explain these variations and the apparent prevalence of β- over α-rhizobia. We d...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12286
更新日期:2014-07-01 00:00:00
abstract::Bacillus thuringiensis ssp. israelensis (Bti) produces four Cry toxins (Cry4Aa, Cry4Ba, Cry10Aa and Cry11Aa), and two Cyt proteins (Cyt1Aa and Cyt2Ba), toxic to mosquito-larvae of the genus Aedes, Anopheles and Culex, important human disease vectors that transmit dengue virus, malaria and filarial parasites respective...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02117.x
更新日期:2010-03-01 00:00:00
abstract::Arthrobacter chlorophenolicus A6 is a Gram-positive, 4-chlorophenol-degrading soil bacterium that was recently shown to be an effective colonizer of plant leaf surfaces. The genetic basis for this phyllosphere competency is unknown. In this paper, we describe the genome-wide expression profile of A.chlorophenolicus on...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12375
更新日期:2014-07-01 00:00:00
abstract::Investigations of antibiotic resistance from an environmental prospective shed new light on a problem that was traditionally confined to a subset of clinically relevant antibiotic-resistant bacterial pathogens. It is clear that the environmental microbiota, even in apparently antibiotic-free environments, possess an e...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/j.1462-2920.2009.01972.x
更新日期:2009-12-01 00:00:00
abstract::Zoospores of the eukaryotic green seaweed Ulva respond to bacterial N-acylhomoserine lactone (AHL) quorum sensing signal molecules for the selection of surface sites for permanent attachment. In this study we have investigated the production and destruction of AHLs in biofilms of the AHL-producing marine bacterium, Vi...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2004.00706.x
更新日期:2005-02-01 00:00:00
abstract::Metarhizium robertsii occupies a wide array of ecological niches and has diverse lifestyle options (saprophyte, insect pathogen and plant symbiont), that renders it an unusually effective model for studying genetic mechanisms for fungal adaptation. Here over 20,000 M. robertsii T-DNA mutants were screened in order to ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13777
更新日期:2017-10-01 00:00:00
abstract::The persistence of S. Enteritidis PT4 was studied on a free-range breeding chicken farm which had been depopulated following identification of the organism in breeding birds. The site was sampled periodically for 26 months after depopulation and the organism was found to persist in litter, dried faeces and feed, but n...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2003.00387.x
更新日期:2003-02-01 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::The Bacillus cereus Group comprises organisms that are widely distributed in the environment and are of health and economic interest. We demonstrate an 'ecotypic' structure of populations in the B. cereus Group using (i) molecular data from Fluorescent Amplified Fragment Length Polymorphism patterns, ribosomal gene se...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01495.x
更新日期:2008-04-01 00:00:00
abstract::A companion study indicated that approximately 30% of cultivable soil bacteria may contain inducible prophage; however, the degree to which this cultivation-based estimate applies to autochthonous communities of soil bacteria is unknown. To estimate the prevalence of lysogeny within soil bacterial communities, inducti...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01374.x
更新日期:2007-10-01 00:00:00
abstract::The genetic and biochemical basis of defence mechanisms in plant pathogenic fungi against antifungal compounds produced by antagonistic microorganisms is largely unknown. The results of this study show that both degradative and non-degradative defence mechanisms enable the plant pathogenic fungus Botrytis cinerea to r...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01531.x
更新日期:2008-05-01 00:00:00
abstract::Metapopulation theory developed in terrestrial ecology provides applicable frameworks for interpreting the role of local and regional processes in shaping species distribution patterns. Yet, empirical testing of metapopulation models on microbial communities is essentially lacking. We determined regional bacterioplank...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13650
更新日期:2017-03-01 00:00:00
abstract::Bacillus anthracis, Bacillus cereus and Bacillus thuringiensis have been described as members of the Bacillus cereus group but are, in fact, one species. B. anthracis is a mammal pathogen, B. thuringiensis an entomopathogen and B. cereus a ubiquitous soil bacterium and an occasional human pathogen. In two clinical iso...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2001.00220.x
更新日期:2001-08-01 00:00:00
abstract::Endophytic microorganisms asymptomatically colonise plant tissues. Exploring the assembly dynamics of bacterial endophytic communities is essential to understand the functioning of the plant holobiont and to optimise their possible use as biopesticides or plant biostimulants. The variation in endophytic communities in...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13843
更新日期:2017-08-01 00:00:00
abstract::Traditionally, organisms responsible for major biogeochemical cycling processes have been determined by physiological characterization of environmental isolates in laboratory culture. Molecular techniques have, however, confirmed the widespread occurrence of abundant bacterial and archaeal groups with no cultivated re...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/j.1462-2920.2008.01775.x
更新日期:2008-11-01 00:00:00
abstract::Euryarchaea from the genus Halorhabdus have been found in hypersaline habitats worldwide, yet are represented by only two isolates: Halorhabdus utahensis AX-2(T) from the shallow Great Salt Lake of Utah, and Halorhabdus tiamatea SARL4B(T) from the Shaban deep-sea hypersaline anoxic lake (DHAL) in the Red Sea. We seque...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12393
更新日期:2014-08-01 00:00:00
abstract::Many bacterial genes and virulence factors are regulated by interbacterial and/or host-parasite chemical signals. We demonstrate that toxin production by a free-living freshwater cyanobacterium is regulated in part by the presence of extracellular products of a eukaryotic green alga. In growth experiments, extracellul...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2000.00104.x
更新日期:2000-06-01 00:00:00
abstract::Interaction between microbes affects the growth, metabolism and differentiation of members of the microbial community. While direct and indirect competition, like antagonism and nutrient consumption have a negative effect on the interacting members of the population, microbes have also evolved in nature not only to fi...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12564
更新日期:2015-06-01 00:00:00
abstract::The actinomycete Amycolatopsis japonicum produces the complexing agent ethylenediamine-disuccinate ([S,S]-EDDS), which is an isomer of the widely industrially applied ethylenediamine-tetraacetate (EDTA). In contrast to EDTA, [S,S]-EDDS is readily biodegradable and is therefore an alternative with a favourable environm...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13159
更新日期:2016-04-01 00:00:00
abstract::Bioremediation of contaminated sites has been accepted as an efficient and cheaper alternative to physicochemical means of remediation in several cases. Although chemotactic behaviour of many bacteria has been studied earlier and assays have been developed to study bacterial chemotaxis in semi-solid media, this phenom...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2006.01064.x
更新日期:2006-10-01 00:00:00
abstract::To obtain new amidases of biocatalytic relevance, we used microorganisms indigenous to different types of soil and sediment as a source of DNA for the construction of environmental gene banks, following two different strategies. In one case, DNA was isolated from soil without preceding cultivation to preserve a high d...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2004.00643.x
更新日期:2004-09-01 00:00:00
abstract::The cyclohexane derivative cis-2-(carboxymethyl)cyclohexane-1-carboxylic acid [(1R,2R)-/(1S,2S)-2-(carboxymethyl)cyclohexane-1-carboxylic acid] has previously been identified as metabolite in the pathway of anaerobic degradation of naphthalene by sulfate-reducing bacteria. We tested the corresponding CoA esters of iso...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13806
更新日期:2017-07-01 00:00:00
abstract::Massive metagenomic sequencing combined with gene prediction methods were previously used to compile the gene catalogue of the ocean and host-associated microbes. Global expeditions conducted over the past 15 years have sampled the ocean to build a catalogue of genes from pelagic microbes. Here we undertook a large se...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15182
更新日期:2020-11-01 00:00:00
abstract::Serpentinization is the hydration and oxidation of ultramafic rock, which occurs as oceanic lithosphere is emplaced onto continental margins (ophiolites), and along the seafloor as faulting exposes this mantle-derived material to circulating hydrothermal fluids. This process leads to distinctive fluid chemistries as m...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15006
更新日期:2020-06-01 00:00:00
abstract::The Cape Floral Kingdom is an area of unique plant biodiversity in South Africa with exceptional concentrations of rare and endemic species and experiencing drastic habitat loss. Here we present the first molecular study of the microbial diversity associated with the rhizosphere soil of endemic plants of the Proteacea...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00929.x
更新日期:2005-11-01 00:00:00
abstract::Bacteria are sometimes neither starving nor under nutrient-excess conditions. When growing with suboptimal levels of nutrients, hungry bacteria express appropriate cellular responses. This review discusses approaches to defining the hunger response in both molecular and growth kinetic terms. The gene expression change...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1046/j.1462-2920.2001.00238.x
更新日期:2001-10-01 00:00:00