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    Wyświetlanie 1-8 z 8
    Tytuł:
    Grzyby wystepujace na zoledziach z objawami brunatnej plamistosci i mumifikacji
    Autorzy:
    Kwasna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/817788.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zoledzie
    grzyby
    czynniki chorobotworcze
    choroby nasion
    mumifikacja nasion
    lesnictwo
    brunatna plamistosc zoledzi
    czarna zgnilizna zoledzi
    fitopatologia lesna
    Źródło:
    Sylwan; 1997, 141, 12; 15-22
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Podatność drzew leśnych na opieńkową zgniliznę korzeni
    The susceptibility of forest trees to Armillaria root rot
    Autorzy:
    Szynkiewicz, A.
    Kwaśna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/973615.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    grzyby
    choroby grzybowe
    Armillaria
    czynniki chorobotwórcze
    podatność na choroby
    leśnictwo
    drzewa leśne
    opieńkowa zginilizna korzeni
    fitopatologia leśna
    armillaria
    susceptibility of trees
    resistance
    stress
    Opis:
    The susceptibility of forest trees to Armillaria butt and root rot is described. The paper characterises the most common Armillaria species and presents the mechanical, physiological and chemical mechanisms of plant resistance against Armillaria. The importance of stress as a cause of increased susceptibility of plants to infection is emphasised. Stress in plants may be caused by drought or an excess of water in the soil, inappropriate temperature, unsuitable soil pH, shortage of oxygen in the ground, wrong nutrition, lack of light, pollution of the soil or air, and the presence of damaging macro−, mezo− or microflora and fauna. Stress decreases the production of cambium in the affected area, the production of resins that limit colonisation, the intensity of photosynthesis, respiration and the transport of nutrients. Stress causes the hydrolysis of carbohydrates necessary for production of energy required for resistance responses, increases accumulation of glucose and other substances used by Armillaria, favours the degradation of phenols that limit colonization, increases susceptibility to other stress factors, and decreases regeneration of the trees.
    Źródło:
    Sylwan; 2004, 143, 08; 25-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena mikologiczna zmian zachodzacych w glebie gruntu porolnego po dodaniu trocin iglastych
    Autorzy:
    Sierota, Z.
    Kwasna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/825078.pdf
    Data publikacji:
    1999
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wlasciwosci chemiczne
    grzyby
    uprawa roli
    mikroorganizmy glebowe
    gleby
    grunty porolne
    trociny iglaste
    lesnictwo
    dodatki do gleb
    aktywnosc biologiczna
    uprawy lesne
    Źródło:
    Sylwan; 1999, 143, 04; 57-66
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przyczyny zamierania siewek i mlodych sadzonek debu w Nadlesnictwie Smolarz
    Autorzy:
    Kwasna, H
    Siwecki, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/816692.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zamieranie roslin
    grzyby
    czynniki chorobotworcze
    dab bezszypulkowy
    Nadlesnictwo Smolarz
    Quercus petraea
    sadzonki
    korzenie
    lesnictwo
    siewki
    drzewa lesne
    Źródło:
    Sylwan; 2002, 146, 01; 91-107
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gatunki Phytophthora i Pythium w glebie i w korzeniach dębu szypułkowego na terenach popowodziowych w Nadleśnictwie Wołów
    Phytophthora and Pythium species in soils and in roots of the pedunculate oaks in periodically flooded areas in Wolow Forest District
    Autorzy:
    Kwaśna, H.
    Szewczyk, W.
    Behnke-Borowczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/989782.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    tereny pokleskowe
    tereny popowodziowe
    drzewostany debowe
    drzewa lesne
    dab szypulkowy
    Quercus robur
    korzenie
    gleby lesne
    grzyby
    Phytophthora
    Phytium
    wystepowanie
    Nadlesnictwo Wolow
    pedunculate oak
    fungi
    globisporangium
    oomycota
    flood
    phytophthora
    pythium
    Opis:
    Phytophthora and Pythium species (Oomycota) are known to be serious pathogens of forest trees. Little is known, however, about their presence in Polish oak forests and their role in the oak decline, especially in the flooded areas. The aim of this study was (1) to detect and compare populations of microorganisms from Oomycota and fungi in roots and soil of healthy and declining pedunculate 30−126 years old oak stands, which had been flooded by the Odra River for three months in 1997 and one month in 2010, (2) to demonstrate the relationship between different chemical factors of soil and the occurrence of microorganisms, and (3) to assess the contribution of Oomycota to oak decline. Study was carried out in Wołów Forest District (south−western Poland). Microorganisms were isolated from fine (1−5 mm in diameter) roots and non−rhizosphere soil collected from 0−50 cm horizon. Isolation procedure from roots included surface sterilization and plating the root segments on the nutrient agar. An oak leaf baiting method was used for isolation of Oomycota from soil. Identification of microorganisms was based on morphology and sequencing of the ITS1/2 rDNA. Oomycota was represented by: Globisporangium, Phytophthora and Pythium and fungi mostly by: Aspergillus, Chaetosphaeria, Cylindrocarpon, Mortierella, Mucor, Penicillium, Trichoderma and Umbelopsis. Globisporangium attrantheridium (syn. Pythium attrantheridium) occurred locally and was found in roots of only one flooded oak. This is the first record of this species on oak and in Poland. G. intermedium, P. gibbosa/P. gregata, P. plurivora and Pythium sp. were found in soil of flooded and non−flooded (control) oak stands. The organisms occurred in podzolized brown soils, brown alluvial soils and gley soils that had most nitrogen (21−60 mg/kg), various amounts of calcium (61.1−347.6 mg/100g) and moderate acidity (pH=3.85−4.2). There was often a significant association between exposure to flood and the health status of oak trees assessed by the scale of defoliation. Oomycota seemed to be only moderately associated with increased tree defoliation as a symptom of oak decline.
    Źródło:
    Sylwan; 2015, 159, 07; 531-539
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mykobiota krzewów jałowca Juniperus x media z objawami zamierania na terenie oczyszczalni ścieków w Poznaniu
    Mycobiota of juniper Juniperus x media with symptoms of dieback in sewage plant facilities area in Poznan
    Autorzy:
    Behnke-Borowczyk, J.
    Kwaśna, H.
    Szewczyk, W.
    Zatorski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1291988.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    fitopatologia
    zamieranie pedow
    jalowiec posredni
    Juniperus media
    patogeny
    grzyby
    Chalara
    Cytospora
    Fusarium
    Ilyonectria
    Mycosphaerella
    Pestalotiopsis
    Setomelanomma
    Armillaria
    Rhizoctonia
    Thelephora
    Cadophora
    Leptosphaeria
    Lophodermium
    Septoria
    Sydowia
    gałęzie
    zamieranie
    jałowiec
    branches
    dieback
    fungi
    juniper
    pathogens
    Opis:
    The frequency and diversity of fungi in branches, roots and soil was examined in 3–10-years-old diseased Juniperus x media trees growing in the surroundings of the sewage treatment facility in Poznań. Symptoms of branch dieback appeared first on the older parts inside the crown and mostly in the lower part of trees subsequently spreading upwards and outwards. Our analyses included extraction of environmental rDNA from branches, roots and soil, amplification of the rDNA with fungi specific primers and sequencing. Fungal taxa from Ascomycota, Basidiomycota, Chytridiomycota, Glomeromycota and Zygomycota were detected with a total of 695, 135 and 196 taxa in branches, roots and soil, respectively. Fungal communities included plant pathogens, opportunistic pathogens, epiphytes or endophytes, mycorrhizal taxa, saprotrophs common on organic debris and in soil, human and animal pathogens, entomopathogenic taxa, mycoparasites, white and black yeasts, taxa with antagonistic and medicinal properties and lichenized fungi. The frequency of potential plant pathogens was 2.64–33.12% in branches, 0.88% in roots and 1.29–2.93% in soil. The most common pathogens were species from Chalara, Cytospora, Fusarium, Ilyonectria, Mycosphaerella, Setomelanomma (Ascomycota) and Armillaria, Rhizoctonia (Basidiomycota) genera. The less frequent pathogens included species from Leptosphaeria, Lophodermium and Septoria genera. In conclusion, oxygen deficiency and the presence of poisonous gases in the air around the sewage plant is likely to have had damaging effects on plants infected or colonized by opportunistic and facultative parasites.
    Źródło:
    Leśne Prace Badawcze; 2019, 80, 4
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zbiorowiska grzybów w rozkładającym się drewnie dębu i sosny
    Communities of fungi in decomposed wood of oak and pine
    Autorzy:
    Kwaśna, H.
    Mazur, A.
    Łabędzki, A.
    Kuźmiński, R.
    Łakomy, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1294810.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    fitopatologia lesna
    dab
    Quercus
    sosna
    Pinus
    drewno martwe
    rozklad drewna
    grzyby
    zbiorowiska grzybow
    communities of fungi
    oak
    Scots pine
    succession
    wood decomposition
    Opis:
    The abundance and diversity of wood decomposing fungi were investigated by isolating and cultivating filamentous fungi from wood and by detection of fruit bodies of ascomycetous and basidiomycetous fungi. The objective was to study the impact of forest management on fungi in 100-year-old oak and 87-year-old Scots pine forests in Northern Poland. Fungi were found on coarse woody debris of decayed stumps and fallen logs, boughs and branches in each of the three (managed and unmanaged) examined stands. In total, 226 species of Oomycota and fungi were recorded. Oak wood was colonized by one species of Oomycota and 141 species of fungi including Zygomycota (19 species), Ascomycota (103 species) and Basidiomycota (19 species). Scots pine wood was also colonized by one species of Oomycota and 138 species of fungi including Zygomycota (19 species), Ascomycota (90 species) and Basidiomycota (29 species). In the first, second and third stages of decomposition, the oak wood was colonized by 101, 89 and 56 species of fungi respectively and pine wood was colonized by 82, 103 and 47 species respectively. Eighty three of the observed species (37%) occurred on both types of wood, while the other species displayed nutritional preferences. A decrease in the number of species with advancing decay indicates the necessity for a continuous supply of dead wood to the forest ecosystem. This supply would secure the continuity of fauna and flora and guarantee a stable forest development. The nutritional and ecological preferences of many fungal species furthermore indicate the necessity of supplying the forests with wood of different species. In commercially managed forests the results obtained here will aid in: (i) the development of strategies for effective dead wood management in the context of forest productivity and future wood stock growth, as well as (ii) finding a compromise between forest management requirements and environmental protection.
    Źródło:
    Leśne Prace Badawcze; 2016, 77, 3
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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