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Wyświetlanie 1-3 z 3
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:
The essential function of Swc4p - a protein shared by two chromatin-modifying complexes of the yeast Saccharomyces cerevisiae - resides within its N-terminal part
Autorzy:
Miciałkiewicz, Arkadiusz
Chełstowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1040724.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
chromatin remodeling complexes
histone acetylation
mutagenesis
mutant phenotype
Opis:
The Swc4p protein, encoded by an essential gene, is shared by two chromatin-remodeling complexes in Saccharomyces cerevisiae cells: NuA4 (nucleosome acetyltransferase of H4) and SWR1. The SWR1 complex catalyzes ATP-dependent exchange of the nucleosomal histone H2A for H2AZ (Htz1p). The activity of NuA4 is responsible mainly for the acetylation of the H4 histone but also for the acetylation of H2A and H2AZ. In this work we investigated the role of the Swc4p protein. Using random mutagenesis we isolated a collection of swc4 mutants and showed that the essential function of Swc4p resides in its N-terminal part, within the first 269 amino acids of the 476-amino acid-long protein. We also demonstrated that Swc4p is able to accommodate numerous mutations without losing its functionality under standard growth conditions. However, when swc4 mutants were exposed to methyl methanesulfonate (MMS), hydroxyurea or benomyl, severe growth deficiencies appeared, pointing to an involvement of Swc4p in many chromatin-based processes. The mutants' phenotypes did not result from an impairment of histone acetylation, as in the mutant which bears the shortest isolated variant of truncated Swc4p, the level of overall H4 acetylation was unchanged.
Źródło:
Acta Biochimica Polonica; 2008, 55, 3; 603-612
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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