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    Tytuł:
    Udział węgla w związkach obronnych przed czynnikami biotycznymi u roślin drzewiastych
    Share of carbon in defense compounds against biotic factors in woody plants
    Autorzy:
    Karolewski, P.
    Jagodziński, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/994518.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    obrona chemiczna
    substancje obronne
    zawartosc wegla
    carbon concentration
    defense compounds
    woody plants
    trees
    biotic factors
    review
    Opis:
    In addition to physical defenses, chemical defenses are the most effective way to protect plants from adverse biotic factors (phytophagous insects, other herbivores and pathogenic fungi). This requires extra effort from plants to produce secondary defense metabolites at the expense of production of primary metabolites directly linked to the growth and development of plants. There are three main groups of defensive compounds (alkaloids, phenolic compounds and terpenoids). All defensive compounds are rich in carbon. Depending on the chemical formula, carbon makes up from about 40% to over 85% of the molecular weight of various defense compounds. It is not possible to calculate the total carbon mass accumulation in all defense compounds. In this paper we discuss the content of defensive compounds and carbon with respect to defense strategy of plants, functional groups of woody species (coniferous and deciduous trees), tree species, tree biomass components (leaves, branches, bark, roots, etc.) and many other internal (age of trees, age of leaves, stage of development, origin, etc.) as well as external factors, related to soil and climatic conditions.
    Źródło:
    Sylwan; 2013, 157, 11; 831-841
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zawartość węgla w biomasie pospolitych gatunków krzewów podszycia leśnego
    Carbon concentration in the biomass of common species of understory shrubs
    Autorzy:
    Jagodziński, A.M.
    Jarosiewicz, G.
    Karolewski, P.
    Oleksyn, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008422.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    pietro lesne
    podszyt
    krzewy lesne
    leszczyna pospolita
    Corylus avellana
    czeremcha zwyczajna
    Prunus padus
    czeremcha amerykanska
    Prunus serotina
    kruszyna pospolita
    Frangula alnus
    bez czarny
    Sambucus nigra
    deren swidwa
    Cornus sanguinea
    jarzab pospolity
    Sorbus aucuparia
    biomasa
    zawartosc wegla
    carbon concentration
    shrubs
    biomass components
    Opis:
    Experimental data on carbon concentration in woody plant species biomass are very scarce and value of 50% of dry biomass is widely accepted in carbon storage modeling. On the other hand, some studies have proved that the carbon concentration in woody species biomass is variable and depends on the component. Thus, the main goal of the study was to determine carbon concentration in biomass of 7 understory shrub species (basing on 282 individuals): Corylus avellana, Prunus padus, P. serotina, Frangula alnus, Sambucus nigra, Cornus sanguinea and Sorbus aucuparia as well as to analyze variability of carbon concentration among shrub species and biomass components. Carbon concentration was analyzed for leaves, fruits, branches, stemwood, stembark, coarse and fine roots. Our study revealed that the mean carbon concentration in biomass of all species studied was 47.7%. We found statistically significant differences in carbon concentration among the shrub species studied in all biomass components. The mean value for particular species was as follows: Prunus serotina – 47.5%, P. padus – 47.6%, Frangula alnus – 47.7%, Sambucus nigra – 47.7%, Corylus avellana – 47.8%, Cornus sanguinea – 47.8% and Sorbus aucuparia – 47.8%. Additionally, we found statistically significant differences in carbon concentration among biomass components within the species studied. The mean carbon concentration in fruit biomass was 46.2%, in fine roots – 47.0%, in leaves – 47.2%, in coarse roots – 47.7%, in branches – 47.9%, in stemwood – 48.5% and in stembark – 48.6%. The variability of carbon concentration in fruit, branches and leaves biomass was higher than in the remaining biomass components. The variability of carbon concentration in biomass of woody species should be considered in carbon storage modeling in forest ecosystems.
    Źródło:
    Sylwan; 2012, 156, 09; 650-662
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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