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  • Wiley  (34)
  • 2020-2024  (34)
  • Biodiversitätsforschung  (34)
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  • Wiley  (34)
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  • 2020-2024  (34)
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  • 1
    In: Journal of Fish Diseases, Wiley, Vol. 43, No. 11 ( 2020-11), p. 1409-1418
    Kurzfassung: Clonorchis sinensis , an important fish‐borne zoonotic trematode, is widely distributed in South‐East Asia, especially in China. Infections from human and animal reservoir hosts occur due to the consumption of raw or undercooked fish with C. sinensis metacercariae. This study aimed to evaluate the prevalence of C. sinensis metacercariae in fish in South‐East Asia via systematic review and meta‐analysis. We searched PubMed, ScienceDirect, China National Knowledge Infrastructure, Wanfang and Chongqing VIP databases for studies published between 1976 and 2020 that are related to the prevalence of C. sinensis metacercariae in fish. Studies were screened with keywords based on inclusion and exclusion criteria. Seventy‐one eligible articles were identified, covering three countries: China, Korea and Vietnam. The pooled prevalence of C. sinensis metacercariae in fish from South‐East Asia was 30.5%, with 35.1% in China, 29.7% in Korea and 8.4% in Vietnam. In subgroup analyses of climate, season, water source and publication date, the highest prevalence was identified in the Dwb climate type (43.3%), summer (70.2%), river (34.5%) and pre‐2001 publications (38.9%), respectively. In comparison, the lowest prevalence was found in the Dfa climate type (14.5%), winter (19.5%), lake (8.0%) and post‐2001 publications (23.8%). Meta‐regression results indicated that country ( p  = .009), the published time ( p  = .035) and water source subgroups ( p  = .003) may be the source of heterogeneity. Overall, our study indicates that a high prevalence of C. sinensis infections occurs in fish in China, Korea and Vietnam, illuminating a significant public health concern in these countries.
    Materialart: Online-Ressource
    ISSN: 0140-7775 , 1365-2761
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 432109-1
    ZDB Id: 2020444-9
    SSG: 21,3
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    In: Diversity and Distributions, Wiley, Vol. 28, No. 12 ( 2022-12), p. 2858-2870
    Kurzfassung: The pattern of biodiversity and biogeography is crucial to informing management and conservation strategy. But a lack of study across multiple ridge systems, especially for the Carlsberg Ridge, has hampered the conception of the overall picture for the Indian Ocean vents, a top target for deep‐sea exploration of massive sulphides. Here, we aim to characterize fauna from three new vent fields on the Carlsberg Ridge for the first time, and answer 1) what is the biogeographic pattern for vent fauna within the Indian Ocean and 2) how does this pattern guide the future environmental management on the Indian Ocean ridges. Location Vents on the Carlsberg Ridge (CR), Central Indian Ridge (CIR), and Southwest Indian Ridge (SWIR). Taxon Macrofauna. Methods Samples, still images and videos were collected from vent fields by either submersible or TV‐guided grab. A comprehensive dataset of 11 fields on Indian Ocean ridges were obtained based on taxa identification and compilation. Genetic connectivity was analysed for six species using COI sequences. A framework for identifying biogeographic regions based on beta diversity measurement βsim was employed to reveal species turnover along the Indian Ocean ridges. Results Faunal assemblages at three new vents on the CR hosted a total of 34 species. Significant genetic differentiation was detected between southern SWIR and CIR (plus Tiancheng) for three species, and between CIR (plus Tiancheng) and CR for four species. Hierarchical clustering of βsim support division of the Indian Ocean vents into three clades. Main conclusions Species turnover along the ridges supported the separation of Indian Ocean vents into three discrete biogeographic units, boundaries between which largely corresponded to genetic breaks for shared species with lower dispersal capabilities. The results clearly show that the conservation of Indian Ocean vents must target three provinces, simultaneously.
    Materialart: Online-Ressource
    ISSN: 1366-9516 , 1472-4642
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2022
    ZDB Id: 2020139-4
    ZDB Id: 1443181-6
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    In: Environmental Microbiology, Wiley, Vol. 23, No. 1 ( 2021-01), p. 376-390
    Kurzfassung: Cyanobacteria are globally important primary producers and nitrogen fixers with high iron demands. Low ambient dissolved iron concentrations in many aquatic environments mean that these organisms must maintain sufficient and selective transport of iron into the cell. However, the nature of iron transport pathways through the cyanobacterial outer membrane remains obscure. Here we present multiple lines of experimental evidence that collectively support the existence of a novel class of substrate‐selective iron porin, Slr1908, in the outer membrane of the cyanobacterium Synechocystis sp. PCC 6803. Elemental composition analysis and short‐term iron uptake assays with mutants in Slr1908 reveal that this protein is primarily involved in inorganic iron uptake and contributes less to the accumulation of other metals. Homologues of Slr1908 are widely distributed in both freshwater and marine cyanobacteria, most notably in unicellular marine diazotrophs. Complementary experiments with a homologue of Slr1908 in Synechococcus sp. PCC 7002 restored the phenotype of Synechocystis knockdown mutants, showing that this siderophore producing species also possesses a porin with a similar function in Fe transport. The involvement of a substrate‐selective porins in iron uptake may allow cyanobacteria to tightly control iron flux into the cell, particularly in environments where iron concentrations fluctuate.
    Materialart: Online-Ressource
    ISSN: 1462-2912 , 1462-2920
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2021
    ZDB Id: 2020213-1
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Wiley ; 2022
    In:  Ecological Research Vol. 37, No. 4 ( 2022-07), p. 495-504
    In: Ecological Research, Wiley, Vol. 37, No. 4 ( 2022-07), p. 495-504
    Kurzfassung: Litter plays an important role in plant invasion. Our previous studies have found that litter had two opposite effects as Spartina alterniflora invading native plant Phragmites australis community. Litter stimulated the growth of S. alterniflora on the edge of the community, while it inhibited the growth in the old community. Accordingly, we hypothesized that litter may play different roles in different stages of plant invasions. We selected three types of communities: P. australis monoculture (PAM), S. alterniflora monoculture (SAM), S. alterniflora – P. australis mixture (SPM) and conducted a comparative study by keeping and removing litter at Chongming Dongtan in the Yangtze River estuary, China. Our results revealed that litter removal significantly increased light intensity in SAM, and enhanced it in SPM, but had no significant influence on it in PAM. The effect of litter on light intensity resulted in a higher chlorophyll content and higher plant height of S. alterniflora monoculture after litter removal, which eventually led to a higher single weight and aboveground biomass for PAM and SAM after litter removal, and to a higher aboveground biomass for S. alterniflora in SPM. Litter removal significantly enhanced the dominance of S. alterniflora relative to P. australis in SPM. We concluded that the effects of invasive plants' litter on the invasion processes depend on the stem density of invasive plants relative to native plants. If an invasive species had a higher plant density, its litter may not have a shelter effect on native species, but could restrict its own growth.
    Materialart: Online-Ressource
    ISSN: 0912-3814 , 1440-1703
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2022
    ZDB Id: 2023900-2
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    In: Cell Proliferation, Wiley, Vol. 53, No. 1 ( 2020-01)
    Kurzfassung: In humans, non‐obstructive azoospermia (NOA) is a major cause of male infertility. However, the aetiology of NOA is largely unknown. Previous studies reported that protein CK2β was abundantly and broadly expressed in spermatogenic cells. Here, we investigate whether protein CK2β participates in spermatogenesis. Materials and Methods In this study, we separated spermatogenic cells using STA‐PUT velocity sedimentation, analysed the expression pattern of protein CK2β by immunoblotting, specifically deleted Ck2β gene in early‐stage spermatogenic cells by crossing Ck2β fl mice with Stra8‐Cre + mice and validated the knockout efficiency by quantitative RT‐PCR and immunoblotting. The phenotypes of Ck2β fl/Δ ;SCre + mice were studied by immunohistochemistry and immunofluorescence. The molecular mechanisms of male germ cell development arrest were elucidated by immunoblotting and TUNEL assay. Results Ablation of Ck2β gene triggered excessive germ cell apoptosis, germ cell development arrest, azoospermia and male infertility. Inactivation of Ck2β gene caused distinctly reduced expression of Ck2α ′ gene and CK2α′ protein. Conclusions Ck2β is a vital gene for germ cell survival and male fertility in mice.
    Materialart: Online-Ressource
    ISSN: 0960-7722 , 1365-2184
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 2019986-7
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    In: The FASEB Journal, Wiley, Vol. 34, No. 10 ( 2020-10), p. 13376-13395
    Materialart: Online-Ressource
    ISSN: 0892-6638 , 1530-6860
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 1468876-1
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    In: Pest Management Science, Wiley, Vol. 76, No. 2 ( 2020-02), p. 454-463
    Kurzfassung: The fall armyworm (FAW), an invasive pest from the Americas, is rapidly spreading through the Old World, and has recently invaded the Indochinese Peninsula and southern China. In the Americas, FAW migrates from winter‐breeding areas in the south into summer‐breeding areas throughout North America where it is a major pest of corn. Asian populations are also likely to evolve migrations into the corn‐producing regions of eastern China, where they will pose a serious threat to food security. RESULTS To evaluate the invasion risk in eastern China, the rate of expansion and future migratory range was modelled by a trajectory simulation approach, combined with flight behavior and meteorological data. Our results predict that FAW will migrate from its new year‐round breeding regions into the two main corn‐producing regions of eastern China (Huang‐Huai‐Hai Summer Corn and Northeast Spring Corn Regions), via two pathways. The western pathway originates in Myanmar and Yunnan, and FAW will take four migration steps (i.e. four generations) to reach the Huang‐Huai‐Hai Region by July. Migration along the eastern pathway from Indochina and southern China progresses faster, with FAW reaching the Huang‐Huai‐Hai Region in three steps by June and reaching the Northeast Spring Region in July. CONCLUSION Our results indicate that there is a high risk that FAW will invade the major corn‐producing areas of eastern China via two migration pathways, and cause significant impacts to agricultural productivity. Information on migration pathways and timings can be used to inform integrated pest management strategies for this emerging pest. © 2019 Society of Chemical Industry
    Materialart: Online-Ressource
    ISSN: 1526-498X , 1526-4998
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 2003455-6
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    In: Journal of Ecology, Wiley, Vol. 108, No. 5 ( 2020-09), p. 1989-1999
    Kurzfassung: 全球变化对外来物种和土著物种的影响是否一致的问题一直备受争议,因为外来物种和土著物种的竞争优势都可能因环境变化而改变。以往的研究主要关注单个环境因素变化的影响,但自然界中植物群落往往同时受到多个环境因素变化的影响,这些因素的共同作用对外来物种和土著物种的影响是否存在差异,这一问题仍不明确。 本研究假设,外来物种和土著物种在种间权衡上存在差异,这种差异将导致多重环境因素变化背景下外来物种在群落中占据更高的优势度。 为了验证这一假设,本研究以盐沼植物群落为对象,设计了水位胁迫和营养输入实验,检验了外来物种和土著物种在竞争能力和耐胁迫能力间的权衡模式,并分析了上述两种环境因素变化对土著物种-土著物种和土著物种-外来物种种间相互作用的影响。 结果发现,水淹胁迫和营养输入在影响不同土著物种种间关系上的效应相互抵消,而在影响土著物种与外来物种种间关系上不存在效应相互抵消的现象。两种环境因素变化的共同作用,未改变不同土著物种在种间的相对优势,但增加了外来物种相对于土著物种的种间优势度。这种差异产生的原因是,不同的土著物种在竞争能力和耐胁迫能力上存在种间权衡,而外来物种未受到这种权衡的约束。 上述结果表明,多重环境因素变化有利于与土著物种权衡模式不同的外来物种的入侵。因此,未来有关全球变化对生物入侵影响的研究,需关注群落内的种间权衡等物种共存驱动机制的作用。
    Materialart: Online-Ressource
    ISSN: 0022-0477 , 1365-2745
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 3023-5
    ZDB Id: 2004136-6
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Online-Ressource
    Online-Ressource
    Wiley ; 2022
    In:  Plant, Cell & Environment Vol. 45, No. 12 ( 2022-12), p. 3399-3411
    In: Plant, Cell & Environment, Wiley, Vol. 45, No. 12 ( 2022-12), p. 3399-3411
    Kurzfassung: This study found that high ambient humidity enhanced blast development in rice plants by promoting conidial germination and appressorium formation of M. oryzae and suppressing the activation of ethylene signaling pathway induced by M. oryzae in rice.
    Materialart: Online-Ressource
    ISSN: 0140-7791 , 1365-3040
    URL: Issue
    RVK:
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2022
    ZDB Id: 391893-2
    ZDB Id: 2020843-1
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    In: Global Change Biology, Wiley, Vol. 29, No. 10 ( 2023-05), p. 2655-2668
    Kurzfassung: Numerous insects including pests and beneficial species undertake windborne migrations over hundreds of kilometers. In East Asia, climate‐induced changes in large‐scale atmospheric circulation systems are affecting wind‐fields and precipitation zones and these, in turn, are changing migration patterns. We examined the consequences in a serious rice pest, the brown planthopper (BPH, Nilaparvata lugens ) in East China. BPH cannot overwinter in temperate East Asia, and infestations there are initiated by several waves of windborne spring or summer migrants originating from tropical areas in Indochina. The East Asian summer monsoon, characterized by abundant rainfall and southerly winds, is of critical importance for these northward movements. We analyzed a 42‐year dataset of meteorological parameters and catches of BPH from a standardized network of 341 light‐traps in South and East China. We show that south of the Yangtze River during summer, southwesterly winds have weakened and rainfall increased, while the summer precipitation has decreased further north on the Jianghuai Plain. Together, these changes have resulted in shorter migratory journeys for BPH leaving South China. As a result, pest outbreaks of BPH in the key rice‐growing area of the Lower Yangtze River Valley (LYRV) have declined since 2001. We show that these changes to the East Asian summer monsoon weather parameters are driven by shifts in the position and intensity of the Western Pacific subtropical high (WPSH) system that have occurred during the last 20 years. As a result, the relationship between WPSH intensity and BPH immigration that was previously used to predict the size of the immigration to the LYRV has now broken down. Our results demonstrate that migration patterns of a serious rice pest have shifted in response to the climate‐induced changes in precipitation and wind pattern, with significant consequences for the population management of migratory pests.
    Materialart: Online-Ressource
    ISSN: 1354-1013 , 1365-2486
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2023
    ZDB Id: 2020313-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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