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    Wyświetlanie 1-14 z 14
    Tytuł:
    Choroba więdnięcia sosny
    The pine wilt disease
    Autorzy:
    Filipiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013041.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Pinus
    Monochamus
    wektory nicieni
    drzewa iglaste
    ograniczanie wystepowania
    wiedniecie sosny zwyczajnej
    Bursaphelenchus xylophilus
    lesnictwo
    nicienie
    rosliny zywicielskie
    choroby roslin
    choroby inwazyjne
    czynniki chorobotworcze
    sosna
    fitopatologia lesna
    pine wilt disease
    bursaphelenchus xylophilus
    pine wood nematode
    monochamus spp.
    pinus spp.
    Opis:
    The article presents factors which can influence the occurrence the pine wilt disease, i.e. the causative agent of this disease – pine wood nematode, Bursaphelenchus xylophilus, the transmission mechanism of pine wood nematode, the insect vectors – cerambycid beetles of the genus Monochamus, and environmental conditions which favour development of this disease. Furthermore, the methods of prevention of pine wilt disease are discussed.
    Źródło:
    Sylwan; 2008, 152, 12; 9-19
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fusarium spp. na nadziemnych organach zamierających dębów - nowe zagrożenie?
    Fusarium spp. on the above-ground organs of dying oaks – a new threat?
    Autorzy:
    Wit, M.
    Sierota, Z.
    Oszako, T.
    Mirzwa-Mróz, E.
    Wakuliński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/989848.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    fitopatologia lesna
    dab
    Quercus
    zamieranie drzew
    paki
    pedy
    grzyby
    Fusarium
    wystepowanie
    zagrozenia roslin
    oak decline
    fusarium spp.
    Opis:
    Oak decline is insufficiently described problem. Declining oaks are in various age and the most commonly observed symptoms of the disease include growth inhibition and buds mortality. The dieback occurs periodically, mainly because of the impact of abiotic factors (drought, frost and the lowering of the groundwater level). In this complex phenomenon the biological factors, including numerous species of Chromista (Chromalveolata) and fungi play important role as well. The list of pathogens responsible for the dieback includes numerous species of Pythium and Phytophthora, as well as Biscogniauxia, Discula, Pleurophoma, Botryosphaeria and Diplodia. Among other organisms responsible for the oak decline are fungi belonging to Fusarium species. The aim of this study was to investigate the species composition of pathogens colonizing the dying oak buds including undeveloped or dying shoots obtained from Łomża, Rudka and Czarna Białostocka forest districts (eastern Poland). Sampling of symptomatic shoots of Quercus robur L. was performed in 2013, respecting different parts of tree crowns (top, central and bottom). Mycological material for analysis included mycelium growing on dying shoots after incubation in a chamber and tissue collected from symptomatic shoots and placed on PDA medium. For selected isolates of fungi the identification was confirmed by the PCR analysis using ITS1 and ITS4 primers. Among analyzed fungi Fusarium spp., Alternaria alternata, Cladosporium cladosporioides, Botryosphaeria quercuum and /em>Coniothyrium spp. required special attention. The Fusarium spp. group of fungi dominated with an average frequency of 32%. The molecular analysis revealed the presence of several species including Fusarium avenaceum, Cladosporium cladosporioides, Lophiostoma corticola and Nectria mauritiicola.
    Źródło:
    Sylwan; 2015, 159, 05; 403-410
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Historia i perspektywy użytkowania i badań trufli w Polsce
    History and perspectives of utilisation and research on truffles in Poland
    Autorzy:
    Rosa-Gruszecka, A.
    Hilszczańska, D.
    Gil, W.
    Kosel, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/987180.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    mikologia
    grzyby jadalne
    trufla
    Tuber
    wystepowanie
    uzytkowanie
    badania naukowe
    uprawa grzybow
    ogrody truflowe
    Polska
    tuber spp.
    cuisine
    truffle orchards
    truffle hunting
    Opis:
    In this paper we discuss the data on presence of truffles (Tuber spp.) in Polish literature and culture through the ages. The aim of this article was to give the historical data on truffles as well as the new ones together with the ongoing research on that ultimate fungi. Study concerning widely understood history of and research on truffles in Poland was based on review of literature dating back to XVII century. A total of 67 books and articles were reviewed. Given the rich body of literature, especially in the past centuries, we have come to the conclusion that truffles were well known to the Poles (at least to the nobles and the rich). Some factors determining truffle forgetfulness after the Second World War are given in respect to social, cultural and forests' management changes. The following reasons can be highlighted: (1) changes in the forest cover, which in 1945 was only 20.8% and furthermore unfavorable changes in the forest struc− ture, the tree species composition and the management (undergrowth shading the forest floor) for truffle development; (2) changes in the structure of forest ownership and management, especially disappearance of traditional ways of forest use, such as cattle grazing and brushwood collecting; (3) changes of Polish State borders resulting in significant area of soils, which are conducive to truffles growing (chernozem) coming into the borders of Ukrainian territory; (4) social changes resulted from the extermination and deportations of Polish aristocracy and intelligentsia (including foresters) – knowledgeable social group of people regarding truffle col− lection, use and cultivation as well as migration of people from rural to urban areas and emigra− tion from Poland, and (5) the fact that in time of communists regime there was no room to promote the gourmet products, especially if it was associated with the aristocracy. In consequence, truffles went into oblivion. Furthermore, the aspects of promotion and establishment of truffle orchards in Poland in the last decade are also presented. Based on the authors findings is clearly shown that there is a great potential towards promotion and growing truffles in Poland, especially Tuber aestivum Vittad. known as summer or Burgundy truffle. This species has a wide range in Europe and plasticity to different climatic conditions.
    Źródło:
    Sylwan; 2017, 161, 04; 320-327
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena liczebności pędraków Melolonthinae w pułapkach trocinowych w uprawach sosny zwyczajnej (Pinus sylvestris L.)
    Assessing the number of Melolonthinae larvae in the sawdust traps in young Scots pine (Pinus sylvestris L.) plantations
    Autorzy:
    Szmidla, H.
    Tkaczyk, M.
    Małecka, M.
    Sierota, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/986677.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    ochrona lasu
    uprawy lesne
    sosna zwyczajna
    Pinus sylvestris
    pulapki trocinowe
    szkodniki roslin
    Melolonthinae
    pedraki
    liczebnosc
    melolontha spp.
    young forest plantations
    root−pest monitoring
    Opis:
    Root−feeding insects are an increasingly studied group of herbivores, whose impact on plant productivity and are some of the most damaging forest pests in Europe. Due to the mass feeding on the roots of seedlings and older trees in young plantation and stands, Melolonthinae larvae are classified as pests, which are the most dangerous on the land dedicated to afforestation. The research was located in the Wyszków Forest District (52°43'15' N; 21°39'03' E) on the mixed coniferous and mixed deciduous forest habitats. This study evaluated sawdust traps as the method for assessing abundance of Melolonthinae larvae in Scots pine plantations established artificially from open nursery, container production, and from natural regeneration. In spring 2015 i) ‘small sawdust pits’ in rows between seedlings, and ii) pits without soil in adjacent inter−rows as control were prepared. In spring and autumn 2016, and in spring 2017 sawdust and soil from both variants of pits were sieved and Melolonthinae larvae were counted and compared. The obtained results were analyzed in two ways. The first analysis compared the occurrence of grubs in small pits with or without sawdust, while the other one analysed influence of the time of making small pits, independently for the variant with or without sawdust. The final stage was to compare the number of Melolonthinae larvae in small pits between the origin of the seedlings. We found a greater number of grubs in spring assessment than in autumn. Both kinds of small pits showed higher number of Melolonthinae larvae when compared to traditional method of ‘great pits’. The number of Melolonthinae larvae was significantly higher on the plots with container seedlings than the others. The conceptual assumptions of this alternative and environmentally safe method of ‘sawdust traps’ seems to be optimistic.
    Źródło:
    Sylwan; 2018, 162, 07; 590-597
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Występowanie Phytophthora cactorum na jarząbie zwyczajnym (Sorbus aucuparia) w szkółkach leśnych
    The occurrence of Phytophthora cactorum on rowan (Sorbus aucuparia) in forest nurseries
    Autorzy:
    Orlikowski, L.B.
    Duda, B.
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023374.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wystepowanie
    grzyby
    czynniki chorobotworcze
    Phytophthora cactorum
    szkolki lesne
    Sorbus aucuparia
    lesnictwo
    jarzab pospolity
    drzewa lesne
    fitopatologia lesna
    phytophthora spp.
    inoculation
    rowan
    disease
    stem necrosis
    isolation
    Opis:
    Phytophthora cactorum was isolated from about half of the rowan seedlings taken from 2 nurseries. Additionally, Botrytis cinerea and Fusarium solani were found in diseased tissues. In laboratory trials, the pathogen colonized plants of the family Rosaceae, and most especially Prunus avium, Pyrus communis and Rosa canina, as well as Alnus glutinosa, Betula verrucosa and coniferous plants. In a greenhouse trial, isolates from rowan and rhododendron were found to cause necrosis of the stem base, with a rate of disease spread of about 1.3 mm/24 h.
    Źródło:
    Sylwan; 2004, 148, 10; 67-72
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwości ochrony lasu przed owadami uszkadzającymi systemy korzeniowe metodą biologiczną z wykorzystaniem entomopatogennnych nicieni i bakterii
    Possibility of forest protection against insects damaging root systems with the use of biological method based on entomopathogenic nematodes and bacteria
    Autorzy:
    Malinowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/973985.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Melolontha
    bakterie entomopatogenne
    biologiczne metody ochrony roslin
    nicienie entomopatogenne
    ochrona lasu
    owady
    szkodniki korzeni
    chrabąszcz
    szkodniki roślin
    leśnictwo
    ntomopathogenic nematodes
    entomopathogenic bacteria
    melolontha spp
    efficacy
    Opis:
    The paper presents the mechanism of insects infection with entomopathogenic nematodes (Steinernema and Heterorhabditis) and bacteria, their infectivity and survival in the environment and efficacy, mainly against Melolontha spp. white grubs.
    Źródło:
    Sylwan; 2011, 155, 02; 104-111
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zagrożenie szkółek i drzewostanów, ze szczególnym uwzględnieniem olszy przez gatunki z rodzaju Phytophthora
    Autorzy:
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022006.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    grzyby
    czynniki chorobotworcze
    drzewostany
    zagrozenia roslin
    szkolki lesne
    Phytophthora
    lesnictwo
    olsza czarna
    Alnus glutinosa
    drzewa lesne
    fitopatologia lesna
    phytophthora spp.
    nurseries
    stands
    oak
    alder
    damage
    Opis:
    Many pathogenes of Phytophthora genera (P. cactorum, P. citricola, P. cinnamomi and P. citrophthora) are present in the forest and ornamental nurseries all over the Europe. They cause serious disease of many of forest tree species (f.ex. alder, oak and beech). Infected seedlings in nurseries when planted along river plantations are the main source of infection which spread further down of the stream. More research about this phenomen is needed in Poland.
    Źródło:
    Sylwan; 2005, 149, 06; 55-61
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie genetyczne populacji Heterobasidion annosum sensu stricto i Heterobasidion parviporum w wybranych drzewostanach sosnowych i świerkowych w Polsce
    Genetic diversity of Heterobasidion annosum sensu stricto and Heterobasidion parviporum in chosen Scots pine and Norway spruce stands in Poland
    Autorzy:
    Łakomy, P.
    Kwaśna, H.
    Cieślak, R.
    Molińska-Glura, M.
    Dalke-Świderska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1006483.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    fitopatologia lesna
    drzewostany swierkowe
    drzewostany sosnowe
    choroby roslin
    huba korzeni
    Heterobasidion annosum
    Heterobasidion parviporum
    rozprzestrzenianie sie grzybow
    genotyp
    zroznicowanie genetyczne
    heterobasidion spp.
    genetic diversity
    pathogen population
    Opis:
    The study was done in five Scots pine and five Norway spruce stands. Pine stands were infested by Heterobasidion annosum sensu stricto and spruce stands by Heterobasidion parviporum. In all stands the pathogens’ genets were identified. In Scots pine stands 54 genets were found. The biggest one covered area of 160,2 m² and was isolated from 11 stumps. 40% of genets were isolated only from one stump, but in some cases two or three genets colonized the same stump. In Norway spruce stands 55 genets were found. In most cases they were small and only two covered area of 38,5 m² and 40 m². The other ones colonized only one stump or more genets were found in the same stump. Genetic diversity among genets varied from 0 to 77%.
    Źródło:
    Sylwan; 2012, 156, 04; 270-279
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rodzime i egzotyczne żerdzianki, Monochamus spp. (Coleoptera, Cerambycidae) jako wektory węgorka sosnowca, Bursaphelenchus xylophilus
    Native and exotic sawyer beetles, Monochamus spp. (Coleoptera, Cerambycidae) as the vectors of the pine wilt nematode, Bursaphelenchus xylophilus
    Autorzy:
    Kozłowski, M.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1024346.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    wektory nicieni
    Monochamus
    szkodniki roslin
    owady
    entomologia lesna
    Bursaphelenchus xylophilus
    lesnictwo
    zerdzianka
    wegorek sosnowiec
    zamieranie drzew
    monochamus spp.
    natives vector
    exotic vectors
    bursaphelenchus xylophilus
    pine stands
    damage
    Opis:
    A review of present knowledge on the sawyer beetles, Monochamus spp. as the potential and actual vectors of, Bursaphelenchus xylophilus is given. The pine wilt nematode (PWN) can cause considerable damage of pine stands in Europe if it were imported here (lately appeared in Portugal) and distributed throughout the area. This may be accomplished by the natural vectors of the PWN – the pine sawyer beetles: (1) exotic, imported with the wood or (2) native, that had contacted the infected wood. Regarding these scenarios, biology, distribution and known relations to Bursaphelenhus nematodes are given. It is concluded, that despite the vector potential of native and exotic sawyer beetles, the pine wilt nematode will meet climatic obstacle to develop in central and northern Europe.
    Źródło:
    Sylwan; 2003, 147, 01; 24-34
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gatunki Phytophthora jako przyczyna zamierania zywotnikow [Thuja spp.] w polskich szkolkach kontenerowych
    Phytophthora species as the causal agents of thuja [Thuja spp.] decay in Polish hardy ornamental nursery stocks
    Autorzy:
    Orlikowski, L.B.
    Ptaszek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009152.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    szkolkarstwo
    fitopatologia
    szkolki kontenerowe
    zywotnik
    Thuja
    zamieranie roslin
    objawy chorobowe
    czynniki chorobotworcze
    Phytophthora
    Phytophthora citricola
    Phytophthora cinnamomi
    Phytophthora cryptogea
    izolacja
    nursery
    thuja spp.
    symptoms
    cultivars
    phytophthora
    occurrence
    colonization
    Opis:
    Phytophthora citricola was isolated from individual diseased shoots of Thuja orientalis 'Aurea Nana', T. occidentalis 'Smaragd' and rotting tips of T. plicata 'Zebrina'. P. cinnamomi, P. citricola and P. cryptogea were isolated from rotting stem bases of T. occidentalis 'Smaragd'. Shoot inoculation of 14 cultivars caused the colonization of tissues, but faster spread of necrosis was observed on yellow than other cultivars. P. cinnamomi was more aggressive to thuja than other isolated species.
    Źródło:
    Sylwan; 2010, 154, 04; 242-248
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitorowanie chorób wywołanych przez patogeniczne lęgniowce za pomocą analiz DNA
    Monitoring of diseases caused by pathogenic oomycetes using DNA analysis
    Autorzy:
    Nevoigt, F.
    Oszako, T.
    Nowakowska, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008933.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    fitopatologia
    czynniki chorobotworcze
    grzyby
    legniowce
    Oomycetes
    choroby grzybowe
    monitoring
    Phytophthora
    Pythium
    diagnostyka molekularna
    analiza DNA
    metoda real time PCR
    phytophthora spp.
    real time pcr
    its−dna molecular diagnostics
    baiting
    rhododendrons
    Opis:
    Phytophthora species are best known as pathogens of agricultural crops (e.g. P. infestans), but there are also invasive pathogens destroying forest atands (e.g. P. ramorum in the USA) or even whole forest ecosystems (e.g. P. cinnamomi in Australia). Still, little is known about indiginous species, especially in wild ecosystems. Rhododendrons are well known as a reservuar for oomycetes’ development. The main objectives of the present study were to develop the new tool for the identification of pathogenic Phytophthora and Phytium based on DNA sequence analysis of the ITS1, 5.8S gene and ITS2 region. Rhododendrons leaves served as specific plant baits. In order to reach the goal the real time PCR, the nested PCR and the DNA sequencing of the rDNA ITS region were carried out. The genomic DNA was extracted form the symptomatic rhododendron leaves. Three distinct Oomycetes species: Phytophthora cactorum, Pythium mercuriale and em>Pythium recalcitrans were detected in rhododendron leaves and registered in GenBank.
    Źródło:
    Sylwan; 2010, 154, 07; 450-455
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zagrożenia i ryzyka rozwoju huby korzeni w drzewostanie na gruncie porolnym
    Threat and risk assessment of root and butt rot disease in a stand on post−agricultural land
    Autorzy:
    Malecka, M.
    Sierota, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/972993.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    huba korzeni
    grunty porolne
    Heterobasidion annosum
    drzewostany iglaste
    choroby roślin
    ocena zagrożenia
    leśnictwo
    fitopatologia leśna
    root and butt rot heterobasidion spp.
    predisposing and stimulating factors
    threat and risk assessment
    coniferous stand
    post−agricultural land
    Opis:
    The paper provides a characterisation of nine most important factors predisposing and stimulating the intensity and the scale of their occurrence, as well as risk limits (table 2). Important supplementary information about the intensity of occurrence of four main predisposing factors in forest districts is presented in the form of a table (data as of 2002).
    Źródło:
    Sylwan; 2003, 147, 11; 12-25
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ryzyko masowego występowania pędraków chrabąszczy (Melolontha spp.) w strefie ekotonowej drzewostanów dojrzałych na terenie Nadleśnictwa Lubaczów
    Risk of the mass occurrence of cockchafer (Melolontha spp.) grubs in the ecotone of mature stands in Lubaczow Forest District
    Autorzy:
    Niemczyk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989889.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany dojrzale
    ekotony
    ekoton las-laka
    szkodniki roslin
    chrabaszcz majowy
    Melolontha melolontha
    chrabaszcz kasztanowiec
    Melolontha hippocastani
    pedraki
    wystepowanie masowe
    ryzyko wystapienia
    regresja logistyczna
    Nadlesnictwo Lubaczow
    melolontha spp.
    forest−meadow ecotone
    mature stand
    logistic regression
    Opis:
    This study evaluated the environmental risk drivers affecting the occurrence of cockchafer grubs in mature stands bordering with open spaces. The following factors were taken into the consideration: the distance from the edge towards the forest interior, the forest site type, species composition, canopy openness and the cover of forest floor with vegetation as well as cutting treatment in some of the investigated stands. In one of the biggest cockchafer outbreak centers in Poland (Lubaczów Forest District; SE Poland) 6 mature stands were chosen and estalished 5 transects in each of them. Each transect was 250 m long and consisted of 6 pits (1×0.5×0.5 m) in a regular distance of 50 m with the first pit on an open space bordering with forest. Pits were used to determine the grub infestation of the soil. In the area of 100 m² around the pit, the general vegetation cover and tree species composition of a stand were characterized. The forest light environment was defined by hemispherical photography. The distance in transect and the fact that stand was harvested were also taken into consideration. The applied logistic regression model demonstrated that the site fertility is the most important factor that significantly increases the risk of cockchafer grubs occurrence. The other characteristics that also cause that stand is more attractive for the cockchafer grubs are: participation of the broadleaved species in stand composition and the dense vegetation cover. Furthermore, the cockchafer grubs occurrence was more frequent in the forest interior than in an open space or at the forest−meadow ecotone.
    Źródło:
    Sylwan; 2015, 159, 04; 326-335
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stan zdrowotny i zróżnicowanie genetyczne buka zwyczajnego w Nadleśnictwie Siewierz na podstawie analiz chloroplastowego DNA
    Health condition and genetic differentiation level of beech in the Siewierz Forest District assessed with cpDNA markers
    Autorzy:
    Nowakowska, J.A.
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013561.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zroznicowanie genetyczne
    cpDNA zob.DNA chloroplastowy
    drzewa zdrowe
    podatnosc na choroby
    czynniki genetyczne
    lesnictwo
    Phytophthora
    drzewa chore
    Nadlesnictwo Siewierz
    czynniki chorobotworcze
    grzyby
    buk zwyczajny
    fytoftoroza
    stan zdrowotny drzew
    DNA chloroplastowy
    Fagus sylvatica
    drzewa lesne
    fagus sylvatica
    chloroplast dna markers
    heterozygosity level
    phythopthora spp.
    Opis:
    Beech decline phenomenon has been observed in Poland since the 1980s. The reasons are still unclear but the discovery of pathogens genus Phytophthora shed a new light on it. Stems as well as roots of beech trees were severely affected by P. citricola and P. cambivora. In order to find out the genetic background of infection, three loci of chloroplast microsatellite DNA were investigated in the genetic differentiation study of beeches growing in the Siewierz Forest District in Poland. Parameters of genetic diversity (h Nei) and differentiation (GST) in the chloroplast genome were estimated and compared between healthy and damaged trees. Healthy beeches were more heterozygous (h=0.243) than the damaged ones (h=0.113), and the distribution of cpDNA alleles was different between these two groups. Healthy trees were nearly 50% more genetically diversed than declining ones.
    Źródło:
    Sylwan; 2008, 152, 09; 11-20
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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