SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "hsv:(NATURVETENSKAP) hsv:(Biologi) "

Sökning: hsv:(NATURVETENSKAP) hsv:(Biologi)

  • Resultat 61-70 av 79718
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
61.
  • Tedersoo, Leho, et al. (författare)
  • EUKARYOME: the rRNA gene reference database for identification of all eukaryotes
  • 2024
  • Ingår i: Database. - 1758-0463. ; 2024
  • Tidskriftsartikel (refereegranskat)abstract
    • Molecular identification of micro- and macroorganisms based on nuclear markers has revolutionized our understanding of their taxonomy, phylogeny and ecology. Today, research on the diversity of eukaryotes in global ecosystems heavily relies on nuclear ribosomal RNA (rRNA) markers. Here, we present the research community-curated reference database EUKARYOME for nuclear ribosomal 18S rRNA, internal transcribed spacer (ITS) and 28S rRNA markers for all eukaryotes, including metazoans (animals), protists, fungi and plants. It is particularly useful for the identification of arbuscular mycorrhizal fungi as it bridges the four commonly used molecular markers - ITS1, ITS2, 18S V4-V5 and 28S D1-D2 subregions. The key benefits of this database over other annotated reference sequence databases are that it is not restricted to certain taxonomic groups and it includes all rRNA markers. EUKARYOME also offers a number of reference long-read sequences that are derived from (meta)genomic and (meta)barcoding - a unique feature that can be used for taxonomic identification and chimera control of third-generation, long-read, high-throughput sequencing data. Taxonomic assignments of rRNA genes in the database are verified based on phylogenetic approaches. The reference datasets are available in multiple formats from the project homepage, http://www.eukaryome.org.
  •  
62.
  • Tedersoo, Leho, et al. (författare)
  • Global patterns in endemicity and vulnerability of soil fungi.
  • 2022
  • Ingår i: Global change biology. - : Wiley. - 1365-2486 .- 1354-1013. ; 28:22, s. 6696-6710
  • Tidskriftsartikel (refereegranskat)abstract
    • Fungi are highly diverse organisms, which provide multiple ecosystem services. However, compared with charismatic animals and plants, the distribution patterns and conservation needs of fungi have been little explored. Here, we examined endemicity patterns, global change vulnerability and conservation priority areas for functional groups of soil fungi based on six global surveys using a high-resolution, long-read metabarcoding approach. We found that the endemicity of all fungi and most functional groups peaks in tropical habitats, including Amazonia, Yucatan, West-Central Africa, Sri Lanka, and New Caledonia, with a negligible island effect compared with plants and animals. We also found that fungi are predominantly vulnerable to drought, heat and land-cover change, particularly in dry tropical regions with high human population density. Fungal conservation areas of highest priority include herbaceous wetlands, tropical forests, and woodlands. We stress that more attention should be focused on the conservation of fungi, especially root symbiotic arbuscular mycorrhizal and ectomycorrhizal fungi in tropical regions as well as unicellular early-diverging groups and macrofungi in general. Given the low overlap between the endemicity of fungi and macroorganisms, but high conservation needs in both groups, detailed analyses on distribution and conservation requirements are warranted for other microorganisms and soil organisms.
  •  
63.
  • Tedersoo, Leho, et al. (författare)
  • Response to Comment on “Global diversity and geography of soil fungi”
  • 2015
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 349:6251
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Schadt and Rosling (Technical Comment, 26 June 2015, p. 1438) argue that primer-template mismatches neglected the fungal class Archaeorhizomycetes in a global soil survey. Amplicon-based metabarcoding of nine barcode-primer pair combinations and polymerase chain reaction (PCR)–free shotgun metagenomics revealed that barcode and primer choice and PCR bias drive the diversity and composition of microorganisms in general, but the Archaeorhizomycetes were little affected in the global study. We urge that careful choice of DNA markers and primers is essential for ecological studies using high-throughput sequencing for identification.
  •  
64.
  • Wurzbacher, Christian, 1980, et al. (författare)
  • Poorly known microbial taxa dominate the microbiome of permafrost thaw ponds.
  • 2017
  • Ingår i: The ISME journal. - : Springer Science and Business Media LLC. - 1751-7370 .- 1751-7362. ; 11:8, s. 1938-1941
  • Tidskriftsartikel (refereegranskat)abstract
    • In the transition zone of the shifting permafrost border, thaw ponds emerge as hotspots of microbial activity, processing the ancient carbon freed from the permafrost. We analyzed the microbial succession across a gradient of recently emerged to older ponds using three molecular markers: one universal, one bacterial and one fungal. Age was a major modulator of the microbial community of the thaw ponds. Surprisingly, typical freshwater taxa comprised only a small fraction of the community. Instead, thaw ponds of all age classes were dominated by enigmatic bacterial and fungal phyla. Our results on permafrost thaw ponds lead to a revised perception of the thaw pond ecosystem and their microbes, with potential implications for carbon and nutrient cycling in this increasingly important class of freshwaters.
  •  
65.
  • Janzon, Anders, 1978, et al. (författare)
  • Exploring the microbial resistome in river sediments exposed to extraordinary high levels of antibiotics
  • 2010
  • Ingår i: 35th FEBS Congress: Molecules of Life.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The rapid development and propagation of antibiotic resistance in pathogenic and opportunistic bacteria is a major threat to public health worldwide. The phenomenon has been widely studied in the clinical setting, but comparatively little is known about the prevalence and diversity of antibiotic resistance in communities of environmental bacteria, often referred to as the environmental resistome. As the external environment may function as a reservoir of resistance genes to human pathogens, we are interested in how environmental bacteria are affected by antibiotic pollution. We have previously isolated microbial DNA from river sediments taken up- and downstream from a water treatment plant that processes waste water from several pharmaceutical plants producing antibiotics. In a previous study, we used deep sequencing to identify unprecedented frequencies of known resistance genes to several classes of antibiotics in these samples. In this study, we aim to functionally characterize the resistome in a more open and exploratory way by screening genomic DNA libraries transformed into sensitive hosts. To generate the libraries, several experimental strategies were explored, including mechanical shearing and enzymatic digestion of the isolated DNA followed by blunt- or sticky end cloning into different plasmids, subsequently transformed into sensitive E. coli. Pros and cons of the different strategies will be discussed along with preliminary results of the screening against selected antibiotics.
  •  
66.
  •  
67.
  •  
68.
  •  
69.
  • Sandström, Olof, et al. (författare)
  • Miljöpåverkan av skogsindustriutsläpp
  • 1997
  • Ingår i: Naturvårdsverkets rapportserie. Rapport 4695. ; , s. 1-89
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
  •  
70.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 61-70 av 79718
Typ av publikation
tidskriftsartikel (58579)
doktorsavhandling (5536)
annan publikation (3248)
konferensbidrag (3097)
forskningsöversikt (2849)
bokkapitel (2674)
visa fler...
rapport (2099)
samlingsverk (redaktörskap) (705)
bok (389)
licentiatavhandling (333)
recension (136)
patent (33)
konstnärligt arbete (27)
proceedings (redaktörskap) (25)
visa färre...
Typ av innehåll
refereegranskat (61000)
övrigt vetenskapligt/konstnärligt (16728)
populärvet., debatt m.m. (1915)
Författare/redaktör
Nielsen, Jens B, 196 ... (449)
Uhlén, Mathias (322)
Kärnefelt, Ingvar (289)
Bensch, Staffan (259)
Thell, Arne (238)
Björn, Lars Olof (229)
visa fler...
Löfstedt, Christer (216)
Hansson, Lars-Anders (203)
Antonelli, Alexandre ... (200)
Olsson, Mats, 1960 (199)
Langel, Ülo (188)
Åkesson, Susanne (184)
Hasselquist, Dennis (180)
Ellegren, Hans (178)
Hedenström, Anders (173)
Elmberg, Johan (171)
Smith, Henrik G. (170)
Bertilsson, Stefan (168)
Hansson, Bengt (166)
Olsson, Lisbeth, 196 ... (166)
Bååth, Erland (165)
Nilsson, Mats (161)
Nilsson, R. Henrik, ... (160)
Linse, Sara (160)
Larsson, D. G. Joaki ... (159)
Lindström, Åke (157)
Dalen, Love (155)
Tyler, Torbjörn (155)
Nilsson, Jan Åke (154)
Backhaus, Thomas, 19 ... (154)
Nordén, Bengt, 1945 (153)
Ericson, Per G P, 19 ... (153)
Ericsson, Göran (151)
Andersson, Leif (151)
Dupont, Samuel, 1971 (150)
Kelber, Almut (149)
Förlin, Lars, 1950 (148)
Sand, Håkan (148)
Arup, Ulf (146)
Erséus, Christer, 19 ... (142)
Brönmark, Christer (140)
Lundeberg, Joakim (138)
Roslin, Tomas (136)
Warrant, Eric (136)
Johannesson, Kerstin ... (136)
Olsen, Björn (135)
Arnemo, Jon (135)
Hedenäs, Lars (135)
Ehrlén, Johan (134)
Kristiansson, Erik, ... (133)
visa färre...
Lärosäte
Uppsala universitet (15906)
Lunds universitet (14875)
Sveriges Lantbruksuniversitet (12626)
Stockholms universitet (11395)
Göteborgs universitet (10947)
Umeå universitet (6683)
visa fler...
Chalmers tekniska högskola (4189)
Kungliga Tekniska Högskolan (4159)
Karolinska Institutet (2849)
Linköpings universitet (2569)
Linnéuniversitetet (2443)
Naturhistoriska riksmuseet (1836)
Örebro universitet (1293)
Karlstads universitet (1171)
Södertörns högskola (868)
Mittuniversitetet (719)
Högskolan i Skövde (399)
Högskolan i Gävle (352)
Högskolan Kristianstad (334)
Högskolan i Halmstad (326)
Naturvårdsverket (310)
RISE (280)
Luleå tekniska universitet (224)
Malmö universitet (208)
Högskolan i Borås (171)
Jönköping University (126)
Högskolan Dalarna (123)
Mälardalens universitet (80)
Havs- och vattenmyndigheten (69)
IVL Svenska Miljöinstitutet (57)
VTI - Statens väg- och transportforskningsinstitut (42)
Gymnastik- och idrottshögskolan (38)
Handelshögskolan i Stockholm (28)
Riksantikvarieämbetet (17)
Högskolan Väst (14)
Marie Cederschiöld högskola (11)
Blekinge Tekniska Högskola (6)
Röda Korsets Högskola (6)
Försvarshögskolan (4)
Nordiska Afrikainstitutet (2)
Institutet för språk och folkminnen (2)
Sophiahemmet Högskola (1)
Enskilda Högskolan Stockholm (1)
visa färre...
Språk
Engelska (74622)
Svenska (4705)
Tyska (94)
Norska (66)
Danska (37)
Spanska (36)
visa fler...
Franska (31)
Kinesiska (22)
Ryska (20)
Odefinierat språk (16)
Portugisiska (14)
Finska (10)
Japanska (8)
Polska (7)
Nederländska (6)
Arabiska (6)
Persiska (5)
Isländska (2)
Katalanska (2)
Latin (1)
Italienska (1)
Estniska (1)
Turkiska (1)
Slovakiska (1)
Koreanska (1)
Vietnamesiska (1)
visa färre...
Forskningsämne (UKÄ/SCB)
Naturvetenskap (79689)
Medicin och hälsovetenskap (6351)
Lantbruksvetenskap (5510)
Teknik (2343)
Samhällsvetenskap (1392)
Humaniora (816)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy