Abstract:
:Little is known about the diversity and roles of Gram-positive and pigmented bacteria in Antarctic environments, especially those associated with marine macroorganisms. This work is the first study about the diversity and antimicrobial activity of culturable pigmented Gram-positive bacteria associated with marine Antarctic macroalgae. A total of 31 pigmented Gram-positive strains were isolated from the surface of six species of macroalgae collected in the King George Island, South Shetland Islands. On the basis of 16S rRNA gene sequence similarities ≥99%, 18 phylotypes were defined, which were clustered into 11 genera of Actinobacteria (Agrococcus, Arthrobacter, Brachybacterium, Citricoccus, Kocuria, Labedella, Microbacterium, Micrococcus, Rhodococcus, Salinibacterium and Sanguibacter) and one genus of the Firmicutes (Staphylococcus). It was found that five isolates displayed antimicrobial activity against a set of macroalgae-associated bacteria. The active isolates were phylogenetically related to Agrococcus baldri, Brachybacterium rhamnosum, Citricoccus zhacaiensis and Kocuria palustris. The results indicate that a diverse community of pigmented Gram-positive bacteria is associated with Antartic macroalgae and suggest its potential as a promising source of antimicrobial and pigmented natural compounds.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Leiva S,Alvarado P,Huang Y,Wang J,Garrido Idoi
10.1093/femsle/fnv206subject
Has Abstractpub_date
2015-12-01 00:00:00pages
fnv206issue
24eissn
0378-1097issn
1574-6968pii
fnv206journal_volume
362pub_type
杂志文章abstract::An exo-polygalacturonase (EC 3.2.1.15) was purified to apparent homogeneity from cultures of Fusarium oxysporum f.sp. lycopersici on synthetic medium supplemented with citrus pectin, using preparative isoelectric focusing. The enzyme, denominated PG2, had an apparent M(r) of 74000 Da upon SDS-PAGE. The pI of the main ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08592.x
更新日期:1996-12-01 00:00:00
abstract::It is common among intracellular bacterial pathogens to use eukaryotic-like proteins that mimic and manipulate host cellular processes to promote colonization and intracellular survival. Eukaryotic-like proteins are bacterial proteins with domains that are rare in bacteria, and known to function in the context of a eu...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01368.x
更新日期:2008-12-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.01935.x
更新日期:2010-05-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2005.01.013
更新日期:2005-02-15 00:00:00
abstract::DNA from Aspergillus sp. has been reported not to contain 5-methylcytosine. However, it has been found that Aspergillus nidulans responds to 5-azacytidine, a drug that is a strong inhibitor of DNA methyltransferases. Therefore, we have re-examined the occurrence of 5-methylcytosine in DNA from Aspergillus flavus by us...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10939.x
更新日期:2001-11-27 00:00:00
abstract::A gene library of Neisseria meningitidis B15 P1.16 DNA was established in lambda Zap II and clones containing DNA encoding transferrin binding protein 1 (TBP-1) identified following hybridisation with a 63-bp DNA probe based on the codon assignment for the first 21 N-terminal amino acids of TBP-1. Sequencing of the cl...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06310.x
更新日期:1993-06-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08174.x
更新日期:1996-05-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13483.x
更新日期:1999-04-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90427-r
更新日期:1990-05-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb08941.x
更新日期:2000-02-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1995.tb07483.x
更新日期:1995-04-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fny133
更新日期:2018-07-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10341.x
更新日期:1997-04-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1992.tb14047.x
更新日期:1992-12-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz223
更新日期:2019-09-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1093/femsle/fny126
更新日期:2018-08-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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更新日期:2006-04-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb09336.x
更新日期:2000-10-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90176-q
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01583.x
更新日期:2009-06-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.09.021
更新日期:2004-11-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2007.00693.x
更新日期:2007-06-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00122-8
更新日期:2003-03-28 00:00:00
abstract::We identified the minimal locus of 163-kb plasmid pSV1 of Streptomyces violaceoruber for the replication in S. lividans. This locus comprised a repA gene and an upstream 407-bp sequence containing two inverted repeats (IR-III and IR-IV) within an iteron, an AT-rich region and a 300-bp noncoding sequence (NCS). RepA pr...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12307
更新日期:2013-12-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb08919.x
更新日期:2000-01-15 00:00:00
abstract::Metabolic engineering is the practice of using directed genetic manipulations to rewire cellular metabolism primarily with the aim to transform the organism into a single-celled chemical factory. Using biological processes, we can produce more complex chemicals in a more sustainable way. This is particularly important...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1093/femsle/fny079
更新日期:2018-05-01 00:00:00
abstract::An Acremonium chrysogenum strain improvement program based on the transformation with cephalosporin biosynthetic genes was carried out to enhance cephalosporin C production. Best results were obtained with cefEF and cefG genes, selecting transformants with increased cephalosporin C production and lower accumulation of...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.04.010
更新日期:2004-06-01 00:00:00