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    Wyświetlanie 1-8 z 8
    Tytuł:
    Struktura ugrupowan peryfitonowych Jeziora Wielkowiejskiego
    Autorzy:
    Kuczynska-Kippen, N
    Messyasz, B.
    Nagengast, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/878129.pdf
    Data publikacji:
    2004
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    hydrobiologia
    zbiorowiska roslinne
    zmiany sezonowe
    Jezioro Wielkowiejskie
    struktura taksonomiczna
    peryfiton
    dynamika liczebnosci
    struktura zbiorowisk
    Opis:
    The work presents the results of the research carried out on epiphytic communities in two macrophyte habitats – Chara tomentosa and Typha angustifolia. The different architecture of both aquatic substrata led to the differentiation of the taxonomical and quantity structure of periphyton.
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2004, 07; 175-191
    1508-9193
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura zbiorowisk fitoplanktonu Jeziora Chrzypskiego (Sierakowski Park Krajobrazowy, Wielkopolska)
    The phytoplankton community structure in Chrzypskie Lake (Sierakowski Landscape Park, Wielkopolska region)
    Autorzy:
    Celewicz, S.
    Kluza-Wieloch, M.
    Pertek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/29433271.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    wykaz gatunkow
    fitoplankton
    Cyanobacteria
    sinice
    Chlorophyta
    zielenice
    Euglenophyceae
    eugleniny
    Bacillariophyceae
    okrzemki
    Cryptophyceae
    kryptofity
    Dinophyceae
    bruzdnice
    Chrysophyceae
    zlotowiciowce
    Xanthophyceae
    roznowiciowce
    zbiorowiska wodne
    jeziora
    Jezioro Chrzypskie
    gmina Chrzypsko Wielkie
    Pojezierze Poznanskie
    struktura zbiorowisk
    Sierakowski Park Krajobrazowy
    Wielkopolska
    Źródło:
    Steciana; 2021, 25, 4; 31-43
    1689-653X
    Pojawia się w:
    Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura zbiorowisk fitoplanktonu w strefie szuwaru i pelagialu w Jeziorze Budzynskim
    Autorzy:
    Celewicz, S
    Messyasz, B.
    Burchardt, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/878097.pdf
    Data publikacji:
    2001
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    fitoplankton
    Jezioro Budzynskie
    szuwary
    pelagial
    struktura zbiorowisk
    hydrobotanika
    Opis:
    The research of the qualitative and quantitative phytoplankton structure of the rush and open water zones of two basins of the Budzynskie Lake differing in the presence of submerged macrophytes was conducted. A greater variety of phytoplankton species was present in the overgrow basin, as a result of enrichment of the zone of open water above submerged macrophytes by periphyton taxa. In the same basin the reduction of phytoplankton taxa numbers and biomass appeared, that can be connected with pressure of zooplankton grazing and with repressing influence of macrophytes.
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2001, 04; 3-11
    1508-9193
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura zbiorowisk grzybów i bakterii w glebie 1-rocznej uprawy i 10-letniego młodnika w zależności od sposobu przygotowania gleby
    Structure of fungal and bacterial communities in 1-year and 10-year-old plantations of Scots pine after different pre-planting preparation of soil
    Autorzy:
    Kwaśna, H.
    Łakomy, P.
    Gornowicz, R.
    Mikiciński, A.
    Borowczyk-Behnke, J.
    Gałązka, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/989686.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    uprawy lesne
    uprawy sosnowe
    mlodniki sosnowe
    sosna zwyczajna
    Pinus sylvestris
    przygotowanie gleby
    gleby lesne
    aktywnosc biologiczna
    grzyby glebowe
    bakterie glebowe
    wystepowanie
    zbiorowiska bakterii
    zbiorowiska grzybow
    struktura zbiorowisk
    armillaria
    heterobasidion
    scots pine
    silvicultural techniques
    soil biological activity
    Opis:
    Effects of post−harvest wood−debris utilization and pre−planting soil preparation in clear−cut forest on the community structure of soil fungi and bacteria and their possible biological activity towards Armillaria and Heterobasidion were studied in 1− and 10−year−old Scots pine plantations in Bierzwnik and Międzychód Forest Districts (W Poland). Post−harvest wood−debris utilization included: (i) removal from the surface, (ii) spread of the coarse or chipped wood−debris on the surface and (iii) mixing of the chipped wood debris with the soil. Pre−planting soil preparation included: (i) deep furrowing, (ii) shallow turning of the topsoil, (iii) ridging and (iv) no ground preparation. The soil−dilution method was used for detection of fungi and bacteria in soil. Morphotyping was used for identification of fungi. Phenotypic traits and biochemical properties were used for identification of bacteria. Molecular method, MID−66 or BIOLOG® systems were additionally applied for identification of the most common bacteria. Removal of post−harvest wood−debris from the surface of the clear−cut land and shallow turning of the topsoil or ridging before planting increased abundance of fungi in soil of 1−year−old Scots pine plantation. Deep furrowing resulted in increased abundance of fungi and no ground preparation in increased abundance of bacteria in soil of 10−year−old Scots pine plantation. Increased abundance of fungi and bacteria was associated with increased abundance of taxa considered as antagonistic to Armillaria and Heterobasidion. Removal of the post−harvest wood debris and moderate or no mechanical intervention into the soil habitat on the clear−cut site before planting of Scots pine seedlings seems to create the habitat, which may be beneficial for the growth of young trees.
    Źródło:
    Sylwan; 2015, 159, 01; 71-81
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura zbiorowisk grzybów mykoryzowych po pożarze drzewostanu sosny zwyczajnej na siedlisku boru suchego
    Structure of post-fire ectomycorrhizal communities of Scots pine stand in a dry coniferous forest habitat
    Autorzy:
    Hilszczańska, D.
    Gil, W.
    Olszowska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/980282.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedlisko boru suchego
    drzewostany sosnowe
    pozary lasow
    tereny popozarowe
    sosna zwyczajna
    Pinus sylvestris
    mikoryza
    grzyby mikoryzowe
    zbiorowiska grzybow
    struktura zbiorowisk
    roznorodnosc gatunkowa
    forest fire
    mycorrhiza
    fungi
    scots pine
    coniferous forest habitat
    Opis:
    Ectomycorrhizal communities associated with Pinus sylvestris growing on dry coniferous forest habitat after the fire were studied. In order to investigate the fire effect on ectomycorrhizal fungi and changes of soil parameters in the upper (0−15 cm) soil layer three study plots were established: 1 – the control, 2 – fire zone left for artificial renewal (with the economic method of renewal) and 3 – fire zone left for natural renewal. The analysis of mycorrhizae revealed presence of eight mycorrhizal fungi on Scots pine roots and the value of Shannon−Wiener species diversity index H’ equaled to 1.76. The most abundant were mycorrhizae formed by Tomentella feruginea (31.7%) and Hebeloma crustuliniforme (23.3%). The fraction of Paxillus involutus and Rhizopogon sp. mycorrhizae was 16.7% and 13.0%, respectively. The lowest was the number of Thelephora terrestris mycorrhizae (only 1.7%). At the site 2, number of mycorrhizal fungi diminished to five and Shannon−Wiener species diversity index was also lower (1.37). The predominant were mycorrhizae of Cenococcum geophilum (26.7%) and P. involutus (21.7%), whilst the lowest were mycorrhizae of Suillus luteus (1.7%). Although at the third site the number of ectomycorrhizal fungi was the same as on the site 2, the dominance of Thelephora terrestris (66.7%) caused that Shannon−Wiener’s species diversity index was the lowest (1.05). Mycorrhizae of Paxillus involutus and Wilcoxina mikolae were characterised by similar abundance (13.3% and 11.7%, respectively). The lowest number of mycorrhizae was observed for Tomentella sp. (3.3%). Analysis of soil parameters showed an increase of pH on burnt sites in comparison to the control. The soil of burnt sites were also characterised by lower value of C and C/N ratio than the soil on the control treatment. The result showed that ubiquitous mycorrhizal fungi, such as T. terrestis, are able to persist on roots in changed soil environment with low content of nutritions.
    Źródło:
    Sylwan; 2019, 163, 01; 71-79
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ metodyki badań na ocenę struktury zbiorowisk mikroorganizmów w glebie leśnej
    Effect of the methodology of studies on the structure of the microorganisms communities in the forest soil
    Autorzy:
    Behnke-Borowczyk, J.
    Kwaśna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/989286.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gleby lesne
    mikroorganizmy glebowe
    grzyby mikroskopowe
    struktura zbiorowisk
    metodyka badan
    metody klasyczne
    metody molekularne
    startery NS1
    startery NS2
    DNA
    region 18S
    classical method of isolation
    fungi
    microorganisms
    ns1
    ns2
    18s rdna
    soil
    Opis:
    Two different communities of microorganisms were identified in soils by application of the classical method of fungi isolation (soil dilution, culturing on artificial media, morphotyping) and a molecular method (extraction of the environmental DNA, amplification with universal primers NS1 and NS2, cloning and sequencing of representative clones). No organisms were common to both communities. Apart from rare representatives of the Animalia, communities included single fungus−like Eucarya belonging to the Protista, Class Oomycota, and numerous fungi belonging to Chytridiomycota, Zygomycota, Ascomycota and Basidiomycota orders. In total, 88 species were identified in four soil samples. Fungi were mostly Ascomycota. The classical method was particularly effective in detection of fungi important for creation of phytosanitary conditions of soil, i.e. antagonists (Penicillium, Tolypocladium and Trichoderma) and potential stimulants (dark−pigmented Hormiactis candida, Humicola spp. and Phialophora spp.) of phytopathogens (including the common forest genera Armillaria and Heterobasidion). Application of the classical method allowed the detection of mycorrhizal Ascomycota from the genus Oidiodendron. Application of the molecular method allowed the detection of 13 mycorrhizal Basidiomycota. Although primers NS1 and NS2 were designed from a match with DNA of culturable organisms, they also amplified the DNA of non−culturable organisms. This emphasizes their potential usefulness in studies of the biodiversity of microorganisms in environmental samples. The shortage of reference sequences in the database discourages use of the 18S rDNA region in studies on fungal communities. The studies on the biodiversity of microorganisms need the application of a few independent methods of detection and identification.
    Źródło:
    Sylwan; 2016, 160, 06; 492-503
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie regionu ITS1/2 rDNA i 18S rDNA do badania mykobioty gleby leśnej
    Use of ITS1/2 rDNA and 18S rDNA in studies of the forest soil mycobiota
    Autorzy:
    Behnke-Borowczyk, J.
    Kwaśna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/989532.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gleby lesne
    mikroorganizmy glebowe
    grzyby glebowe
    struktura zbiorowisk
    metody badan
    metody molekularne
    DNA rybosomalny
    region ITS1/2
    region 18S
    detection
    forest
    its1/2 rdna
    ns1
    ns2
    18s rdna
    microorganisms
    mycobiota
    soil
    Opis:
    The aim of the studies was to check the usefulness of ITS1/2 rDNA and 18S rDNA regions in the molecular investigation of forest soil microbiota structure. Soil studied, originated from a 1−year−old plantation and a 40−year old stand of Scots pine located in Bierzwnik and Międzychów forest districts located 200 km apart. The hypothesis assumed that both approaches lead to the discovery of abundant microbiota communities with different structures and with rare common species. The environmental DNA was extracted with a Power Soil ® DNA Isolation Kit from two soil samples in each site. The ITS1/2 rDNA was amplified with specific primers ITS1 and ewfitsrev 1, and 18S rDNA with universal primers NS1 and NS2. PCR products were cloned into pGEM−T Easy. Inserts were primarily selected in blue/white screening on a X−gal medium. Representative clones were further selected in two separate RFLP analyses with HhaI and BsuRI restriction enzymes. Representative clones purified and sequenced using the Sanger Method in the DNA Research Centre (Poznań). Each sequence was identified to the lowest taxonomic rank. Ninety to 233 clones with DNA of 5−44 taxa including 3−37 taxa of fungi were obtained from 4 samples of soil. After application of ITS1/2 rDNA and 18S rDNA, the fungal DNA was detected respectively in 89,60−100,00% and 11,77−64,8% clones and the number of fungal species detected was respectively 12−37 and 3−19. Fungi were represented by four orders: Chytridiomycota, Zygomycota, Ascomycota and Basidiomycota. Both primers also amplified also DNA of other organisms (mostly from Animalia and Protista Kingdom) represented by 0−9 taxa. If compared, the application of forest soil microbiota structure with ITS1/2 rDNA and 18S rDNA led to detect a lower abundance of fungi and a bigger abundance of other organisms. Considering the higher number of clones and taxa recognized, the region of ITS1/2 rDNA was more effective in the studies of the soil microbiota structure. The region of 18S rDNA was efficient in local detection of Chytridiomycota and Zygomycota and of rare species of fungi from Ascomycota and Basidiomycota. Despite the deficiency of NCBI database the use of the 18S rDNA region in studies on fungal community the region should be included in molecular studies of fungal diversity. It is concluded that studies on the biodiversity of soil microorganisms need the application of a few independent methods of detection and identification.
    Źródło:
    Sylwan; 2016, 160, 07; 564-572
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zbiorowisko z Betula pendula i Populus tremula w zadrzewieniach śródpolnych zachodniej części Pojezierza Drawskiego
    Community with Betula pendula and Populus tremula in western part of Drawskie Lakeland
    Autorzy:
    Mlynkowiak, E.
    Kutyna, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/82953.pdf
    Data publikacji:
    2009
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Betula pendula
    brzoza brodawkowata
    charakterystyka fitosocjologiczna
    gatunki dominujace
    gatunki roslin
    Pojezierze Drawskie
    Populus tremula
    struktura zbiorowisk
    topola osika
    wykaz gatunkow
    zadrzewienia srodpolne
    zbiorowiska roslinne
    Źródło:
    Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica; 2009, 10
    2081-1284
    Pojawia się w:
    Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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