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    Wyświetlanie 1-4 z 4
    Tytuł:
    Multiple strategies of digenean trematodes to complete their life cycles
    Autorzy:
    Niewiadomska, K.
    Pojmanska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/841119.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    multiple strategy
    digenean trematode
    trematode
    life cycle
    Digenea
    life history
    manipulation
    host behaviour
    mimicry
    shared phenotype
    host to host transfer
    trophic transmission
    miracidium
    Cercaria
    terrestrial life cycle
    parasite
    transmission
    Źródło:
    Annals of Parasitology; 2011, 57, 4
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multiple strategies of digenean trematodes to complete their life cycles
    Autorzy:
    Niewiadomska, K.
    Pojmanska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2143248.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    multiple strategy
    digenean trematode
    trematode
    life cycle
    Digenea
    life history
    manipulation
    host behaviour
    mimicry
    shared phenotype
    host to host transfer
    trophic transmission
    miracidium
    Cercaria
    terrestrial life cycle
    parasite
    transmission
    Opis:
    This review aims to summarize our most recent knowledge of the unique mechanisms employed by digeneans to complete their complex life cycles. It is based on validated data from scientific literature and integrates both authors’ personal experiences. Several dynamic strategies utilized by digeneans are discussed in relation to their presence in three environments: aquatic, semi-aquatic and terrestrial. The following topics are discussed: transmission from host to host, which involves transmission of free-living stage of miracidium and cercaria: in active transmission – specific responses to environmental signals showing the presence of potential hosts (several papers of Haas et al.); in passive transmission – trophic transmission and mimicry by way of resemblance to natural food of potential host; and finally, transmission of the parasitic larvae (metacercaria and mesocercaria) – trophic transmission, manipulation of host behavior, and incorporating the intermediate host into food web of definitive host. This review also highlights several types of behavioral manipulations, including compensatory processes (Poulin, Lefèvre et al., Thomas et al.), and other mechanisms of manipulation (de Jong-Bring et. al). State-dependent alternative cycles demonstrating the difference between the terms „life cycle” and „life history” (Poulin, Thomas et al.) and the concept of „shared phenotype” (Lefèvre et al.) are also discussed.
    Źródło:
    Wiadomości Parazytologiczne; 2011, 57, 4; 233-241
    0043-5163
    Pojawia się w:
    Wiadomości Parazytologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Host feeding behaviour of Dermacentor reticulatus males in relation to the transmission of pathogens
    Autorzy:
    Bartosik, K.
    Buczek, A.
    Buczek, W.
    Buczek, A.M.
    Kulina, D.
    Koman-Iżko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2083137.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    Ticks
    Dermacentor reticulatus
    host feeding behaviour
    attachment of the males
    male engorged weight
    pathogen transmission
    Opis:
    Introduction. The three-host Dermacentor reticulatus tick transmits many pathogens, which are introduced into the host with saliva during feeding. Material and methods. The aim of present study was to analyse the behaviour of males of this species on the host in homogeneous sex groups comprising 15 (group I) and 30 (group II) male specimens and in a mixed group composed of 15 males and 15 females (group III). Results. Although the dynamics of attachment of the males to host skin slightly differed between these three groups, there was no statistically significant difference in the duration of the attachment process. The duration of host attachment of the males in groups I, II, and III at 18 ± 2 °C and 50 ± 2% RH was 2.43 ± 2.46, 7.75 ± 11.85, and 9.07 ± 10.97 days, respectively. After 7–9-day feeding, the male engorgement weight (MEW) was similar, regardless of the size of the group and the presence or absence of females on the host. Tick males ingest a small amount of host blood. The value of MEW in the three groups did not differ statistically from the weight of unengorged specimens. Conclusions. The host feeding behaviour of D. reticulatus males and their effective feeding suggest that they may play a role in transmission of pathogens and non-pathogenic microorganisms with tick saliva during blood meal ingestion. Clinical and laboratory diagnostics of human and animal tick-borne diseases as well as epidemiological studies should consider the possibility of pathogen transmission by males of metastriata ticks, which feed on the host for several days.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 227-230
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Deceptive behaviour of Colletotrichum truncatum: strategic survival as an asymptomatic endophyte on non-host species
    Autorzy:
    Ranathunge, N.P.
    Sandani, H.B.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/65702.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    deceptive behaviour
    Colletotrichum truncatum
    strategic survival
    asymptomatic endophyte
    asymptomatic survival
    non-host species
    pathogenicity
    Opis:
    Colletotrichum truncatum (syn. C. capsici), like many other members of the genus Colletotrichum, displays a highly developed infection mechanism against a number of agriculturally important crops. Among many survival strategies, C. truncatum is well known for its wide host range and high pathogenicity on several major crop species. Meticulous understanding of a pathogen’s infection mechanisms is the best way to achieve successful management of a disease. This study was carried out to evaluate the pathogenicity of C. truncatum on selected crop plants and weed species and to detect the possibility of non-host species to facilitate survival of the pathogen. Inoculation of an isolate of C. truncatum to four crops: curry chilli – Capsicum annuum (var. CA8), eggplant – Solanum melongena (var. Lena Iri), tomato – Solanum lycopersicum (var. Thilina) and green chilli – C. annuum (var. KA2) and three weed species: little ironweed (Vernonia cinerea), billygoat-weed (Ageratum conyzoides) and Bengal dayflower (Commelina benghalensis) resulted in approximately 3.5 disease severity (DS) (100% disease incidence-DI) on S. lycopersicum and C. annuum (var. KA2), followed by 2.8 and 1.8 DS (100%, 75% DI) on C. annuum (var. CA8) and S. melongena (var. Lena Iri), respectively. The three weed species were completely symptomless up to 8 weeks after the inoculation (WAI). However, microscopic studies and serial culturing of the inoculated tissues revealed the presence of the fungus in all the tested plants. Appressoria were present in all treated leaves and eventually broke their dormancy upon leaf senescence nearly 6 WAI. This study reveals the potential of C. truncatum infecting all tested crops and the capability of the three weed species in harboring the pathogen asymptomatically for several weeks. Thus, early management of inoculum in the field is suggested for C. truncatum diseases.
    Źródło:
    Journal of Plant Protection Research; 2016, 56, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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