GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Biodiversity Research  (142)
Material
Publisher
Person/Organisation
Language
Years
FID
Subjects(RVK)
  • 1
    Online Resource
    Online Resource
    A gravitational-wave standard siren measurement of the Hubble constant
    Springer Science and Business Media LLC ; 2017
    In:  Nature Vol. 551, No. 7678 ( 2017-11-02), p. 85-88
    Details
    In: Nature, Springer Science and Business Media LLC, Vol. 551, No. 7678 ( 2017-11-02), p. 85-88
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
    URL: Article
    DOI: 10.1038/nature24471
    RVK:
    TA 1000
    RVK:
    UA 1000
    RVK:
    WA 15000
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2017
    detail.hit.zdb_id: 120714-3
    detail.hit.zdb_id: 1413423-8
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM
    Springer Science and Business Media LLC ; 2023
    In:  Nature Vol. 614, No. 7949 ( 2023-02-23), p. 659-663
    Details
    In: Nature, Springer Science and Business Media LLC, Vol. 614, No. 7949 ( 2023-02-23), p. 659-663
    Abstract: Transmission spectroscopy 1–3 of exoplanets has revealed signatures of water vapour, aerosols and alkali metals in a few dozen exoplanet atmospheres 4,5 . However, these previous inferences with the Hubble and Spitzer Space Telescopes were hindered by the observations’ relatively narrow wavelength range and spectral resolving power, which precluded the unambiguous identification of other chemical species—in particular the primary carbon-bearing molecules 6,7 . Here we report a broad-wavelength 0.5–5.5 µm atmospheric transmission spectrum of WASP-39b 8 , a 1,200 K, roughly Saturn-mass, Jupiter-radius exoplanet, measured with the JWST NIRSpec’s PRISM mode 9 as part of the JWST Transiting Exoplanet Community Early Release Science Team Program 10–12 . We robustly detect several chemical species at high significance, including Na (19 σ ), H 2 O (33 σ ), CO 2 (28 σ ) and CO (7 σ ). The non-detection of CH 4 , combined with a strong CO 2 feature, favours atmospheric models with a super-solar atmospheric metallicity. An unanticipated absorption feature at 4 µm is best explained by SO 2 (2.7 σ ), which could be a tracer of atmospheric photochemistry. These observations demonstrate JWST’s sensitivity to a rich diversity of exoplanet compositions and chemical processes.
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
    URL: Article
    DOI: 10.1038/s41586-022-05677-y
    RVK:
    TA 1000
    RVK:
    UA 1000
    RVK:
    WA 15000
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 120714-3
    detail.hit.zdb_id: 1413423-8
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Identification of carbon dioxide in an exoplanet atmosphere
    Springer Science and Business Media LLC ; 2023
    In:  Nature Vol. 614, No. 7949 ( 2023-02-23), p. 649-652
    Details
    In: Nature, Springer Science and Business Media LLC, Vol. 614, No. 7949 ( 2023-02-23), p. 649-652
    Abstract: Carbon dioxide (CO 2 ) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO 2 is an indicator of the metal enrichment (that is, elements heavier than helium, also called ‘metallicity’) 1–3 , and thus the formation processes of the primary atmospheres of hot gas giants 4–6 . It is also one of the most promising species to detect in the secondary atmospheres of terrestrial exoplanets 7–9 . Previous photometric measurements of transiting planets with the Spitzer Space Telescope have given hints of the presence of CO 2 , but have not yielded definitive detections owing to the lack of unambiguous spectroscopic identification 10–12 . Here we present the detection of CO 2 in the atmosphere of the gas giant exoplanet WASP-39b from transmission spectroscopy observations obtained with JWST as part of the Early Release Science programme 13,14 . The data used in this study span 3.0–5.5 micrometres in wavelength and show a prominent CO 2 absorption feature at 4.3 micrometres (26-sigma significance). The overall spectrum is well matched by one-dimensional, ten-times solar metallicity models that assume radiative–convective–thermochemical equilibrium and have moderate cloud opacity. These models predict that the atmosphere should have water, carbon monoxide and hydrogen sulfide in addition to CO 2 , but little methane. Furthermore, we also tentatively detect a small absorption feature near 4.0 micrometres that is not reproduced by these models.
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
    URL: Article
    DOI: 10.1038/s41586-022-05269-w
    RVK:
    TA 1000
    RVK:
    UA 1000
    RVK:
    WA 15000
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 120714-3
    detail.hit.zdb_id: 1413423-8
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    A comparison of UP ‐ PCR and RAPD markers to study genetic diversity of F usicladium effusum (G. Winter), cause of pecan scab
    Wiley ; 2014
    In:  Forest Pathology Vol. 44, No. 4 ( 2014-08), p. 266-275
    Details
    In: Forest Pathology, Wiley, Vol. 44, No. 4 ( 2014-08), p. 266-275
    Abstract: Fusicladium effusum infects pecan causing yield loss, but no information is available on the genetic diversity of F. effusum . Randomly amplified polymorphic DNA s ( RAPD s) and universally primed polymerase chain reaction ( UP ‐ PCR ) were compared to detect polymorphisms on a group of 20 isolates of F. effusum from 11 geographical locations in the southeastern USA . Two tests (run 1 and 2) of both the RAPD and UP ‐ PCR s were conducted to assess the repeatability of the methods, and the markers scored on agarose gels. In addition, the UP ‐ PCR markers from run 1 were scored using an automated capillary system. Both RAPD s and UP ‐ PCR markers detected a high level of polymorphism among the scored markers (92 and 91% of RAPD markers, and 86 and 87% of manually scored UP ‐ PCR markers in run 1 and 2 were polymorphic, respectively; 93% of UP ‐ PCR markers were polymorphic when scored using the automated system). Unweighted paired group method of arithmetic averages ( UPGMA ) analysis showed both RAPD s and UP ‐ PCR markers individually identified each isolate, producing three groupings, but only the groupings based on run 1 and 2 of the UP ‐ PCR contained the same isolates. Bootstrap analysis based on the Dice coefficient produced phenograms from the UP ‐ PCR data with weak to moderate node support (≥54) for the primary branch, but no support for the RAPD s data (≤34). A Mantel test of runs 1 and 2 using RAPD s or UP ‐ PCR showed good agreement ( r  = 0.8761 and 0.8289, p  〈  0.0001), but poor agreement between RAPD s and UP ‐ PCR . UP ‐ PCR results based on the interisolate Dice coefficients showed a weak to strong association with distance. Based on these results, both RAPD s and UP ‐ PCR markers were capable of demonstrating polymorphisms and identifying relationships among isolates of F. effusum ; however, UP ‐ PCR markers appear to be more reliable.
    Type of Medium: Online Resource
    ISSN: 1437-4781 , 1439-0329
    URL: Issue
    URL: Article
    DOI: 10.1111/efp.2014.44.issue-4
    DOI: 10.1111/efp.12090
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 2020304-4
    detail.hit.zdb_id: 2232646-7
    SSG: 23
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Genetic Structure of Magnaporthe grisea Populations Associated with St. Augustinegrass and Tall Fescue in Georgia
    Scientific Societies ; 2005
    In:  Phytopathology® Vol. 95, No. 5 ( 2005-05), p. 463-471
    Details
    In: Phytopathology®, Scientific Societies, Vol. 95, No. 5 ( 2005-05), p. 463-471
    Abstract: Amplified fragment length polymorphisms (AFLPs) were used to estimate phylogenetic relationships within Magnaporthe grisea and determine the genetic structure of M. grisea populations associated with tall fescue and St. Augustinegrass in Georgia. Sixteen clonal lineages were identified in a sample population of 948 isolates. Five lineages were isolated from tall fescue (E, G1, G2, G4, and H), with lineage G4 comprising 90% of the population. Isolates from tall fescue were closely related to those from perennial ryegrass, weeping lovegrass, and wheat. Two M. grisea lineages were isolated from St. Augustinegrass (C and K), with lineage C comprising 99.8% of the population. Populations from crabgrass were dominated (98%) by lineage K, but also contained a single lineage C isolate. Haplotype diversity indices ranged from 0.00 to 0.29 in tall fescue populations and from 0.00 to 0.04 in St. Augustinegrass populations. Selection due to host species was the primary factor determining population structure according to analysis of molecular variance; host cultivar and geographical region had no significant effect. The host range of M. grisea lineages from turfgrasses was determined in growth chamber experiments and supports the prominent role of host species in determining the genetic structure of M. grisea populations from turfgrasses in Georgia.
    Type of Medium: Online Resource
    ISSN: 0031-949X , 1943-7684
    URL: Article
    DOI: 10.1094/PHYTO-95-0463
    Language: English
    Publisher: Scientific Societies
    Publication Date: 2005
    detail.hit.zdb_id: 2037027-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Characterization of Early Leaf Spot Suppression by Strip Tillage in Peanut
    Scientific Societies ; 2007
    In:  Phytopathology® Vol. 97, No. 2 ( 2007-02), p. 187-194
    Details
    In: Phytopathology®, Scientific Societies, Vol. 97, No. 2 ( 2007-02), p. 187-194
    Abstract: Epidemics of early leaf spot of peanut (Arachis hypogaea), caused by Cercospora arachidicola, are less severe in strip-tilled than conventionally tilled fields. Experiments were carried out to characterize the effect of strip tillage on early leaf spot epidemics and identify the primary target of suppression using a comparative epidemiology approach. Leaf spot intensity was assessed weekly as percent incidence or with the Florida 1-to-10 severity scale in peanut plots that were conventionally or strip tilled. The logistic model, fit to disease progress data, was used to estimate initial disease (y 0 ) and epidemic rate (r) parameters. Environmental variables, inoculum abundance, and field host resistance were assessed independently. For experiments combined, estimated y 0 was less in strip-tilled than conventionally tilled plots, and r was comparable. The epidemic was delayed in strip-tilled plots by an average of 5.7 and 11.7 days based on incidence and severity, respectively. Tillage did not consistently affect mean canopy temperature, relative humidity, or frequency of environmental records favorable for infection or spore dispersal. Host response to infection was not affected by tillage, but infections were detected earlier and at higher frequencies with noninoculated detached leaves from conventionally tilled plots. These data suggest that strip tillage delays early leaf spot epidemics due to fewer initial infections; most likely a consequence of less inoculum being dispersed to peanut leaves from overwintering stroma in the soil.
    Type of Medium: Online Resource
    ISSN: 0031-949X , 1943-7684
    URL: Article
    DOI: 10.1094/PHYTO-97-2-0187
    Language: English
    Publisher: Scientific Societies
    Publication Date: 2007
    detail.hit.zdb_id: 2037027-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Effects of Host Resistance, Temperature, Leaf Wetness, and Leaf Age on Infection and Lesion Development of Pecan Scab
    Scientific Societies ; 1998
    In:  Phytopathology® Vol. 88, No. 12 ( 1998-12), p. 1294-1301
    Details
    In: Phytopathology®, Scientific Societies, Vol. 88, No. 12 ( 1998-12), p. 1294-1301
    Abstract: The effects of partial host resistance, temperature, leaf wetness duration, and leaf age on infection and lesion development of pecan scab were evaluated. Trees of cultivars Wichita (susceptible) and Sumner (resistant) were inoculated with conidia of Cladosporium caryigenum and placed in mist chambers set at 15, 25, or 35°C. The trees were removed from the chambers after 3, 6, 12, 24, 36, or 48 h of leaf wetness and placed in a greenhouse to allow disease development. After 8 to 16 days, disease began to develop on both ‘Wichita’ and ‘Sumner’. Logistic regression analysis showed that the probability of a leaf becoming infected was greatest for ‘Wichita’ it decreased with increasing leaf age and temperature and increased with increasing leaf wetness. Leaves on ‘Wichita ’ were susceptible to infection between 2 and 23 days after budbreak, while leaves on ‘Sumner’ were susceptible to infection from 2 to 18 days after budbreak. Infection frequency, lesion size, and conidia production decreased proportionately with increasing leaf age. The magnitude of this effect was greatest on ‘Sumner’. Conidia production was positively correlated with lesion size, and both were positively correlated with infection frequency on both cultivars.
    Type of Medium: Online Resource
    ISSN: 0031-949X , 1943-7684
    URL: Article
    DOI: 10.1094/PHYTO.1998.88.12.1294
    Language: English
    Publisher: Scientific Societies
    Publication Date: 1998
    detail.hit.zdb_id: 2037027-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Characterization of microsatellites in F usicladium effusum , cause of pecan scab
    Wiley ; 2016
    In:  Forest Pathology Vol. 46, No. 6 ( 2016-12), p. 600-609
    Details
    In: Forest Pathology, Wiley, Vol. 46, No. 6 ( 2016-12), p. 600-609
    Abstract: Pecan scab, caused by the plant pathogenic fungus Fusicladium effusum , is the most destructive disease of pecan. Little is known of the population genetic diversity of this pathogen. In this study, microsatellites were mined from the F. effusum genome, and flanking primers were subsequently designed. A total of 275 microsatellites were screened, and 33 selected primers produced reliable, polymorphic markers against 46 isolates of F. effusum from 11 diverse locations in the southeastern USA . The number of alleles per microsatellite locus ranged from two to 17, and the polymorphic information content ( PIC ) from 0.475 to 0.911. A unique pattern informative combination ( UPIC ) analysis of three groups of 12 isolates each and 33 primers consistently showed a minimum number of markers required for the maximum discrimination of isolates equal to 3. The characteristics of the unique patterns ( UP ) and informative contents ( IC ) were very similar. However, the primers that were selected by UPIC were not necessarily the same for each of the three groups. Using all 46 isolates showed each locus was polymorphic, with a single‐population level Shannon's information index of 1.516, indicating substantial diversity. These markers show a range in polymorphic content and power of discrimination that will be valuable tools for studies of genetic diversity in F. effusum .
    Type of Medium: Online Resource
    ISSN: 1437-4781 , 1439-0329
    URL: Issue
    URL: Article
    DOI: 10.1111/efp.2016.46.issue-6
    DOI: 10.1111/efp.12278
    Language: English
    Publisher: Wiley
    Publication Date: 2016
    detail.hit.zdb_id: 2020304-4
    detail.hit.zdb_id: 2232646-7
    SSG: 23
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Characterization of the varicella-zoster virus gene 61 protein
    Microbiology Society ; 1992
    In:  Journal of General Virology Vol. 73, No. 3 ( 1992-03-01), p. 521-530
    Details
    In: Journal of General Virology, Microbiology Society, Vol. 73, No. 3 ( 1992-03-01), p. 521-530
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    URL: Article
    DOI: 10.1099/0022-1317-73-3-521
    RVK:
    XA 53770
    RVK:
    WA 15000
    Language: English
    Publisher: Microbiology Society
    Publication Date: 1992
    detail.hit.zdb_id: 2007065-2
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Characterization of the putative protein kinases specified by varicella-zoster virus genes 47 and 66
    Microbiology Society ; 1994
    In:  Journal of General Virology Vol. 75, No. 2 ( 1994-02-01), p. 317-326
    Details
    In: Journal of General Virology, Microbiology Society, Vol. 75, No. 2 ( 1994-02-01), p. 317-326
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    URL: Article
    DOI: 10.1099/0022-1317-75-2-317
    RVK:
    XA 53770
    RVK:
    WA 15000
    Language: English
    Publisher: Microbiology Society
    Publication Date: 1994
    detail.hit.zdb_id: 2007065-2
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...