Fungi and minerals occurring in heartwood discolorations in Quercus robur trees

• Autorzy: Przybyl K.
• Języki publikacji: EN

Abstrakty

EN

The studied Quercus robur trees were oaks protected as monuments of nature (200-350 years old) and oaks growing in forest stands (200-300 years old). The most visible symptoms occurring in aboveground organs included defoliation (25-75%), dying of twigs and branches. Discoloured heartwood, obtained with an 80-cm Pressler borer, differed in colour intensity from normal wood and was divided into two groups: stained brown and dark brown. The brown-stained heartwood was a more active site, considering the number of fungi and their ability to produce enzymes (phenoloxidase, pectinase and cellulase) in comparison with the dark-brown-stained heartwood. This brown-stained heartwood contained also statistically more Ca, Mg and Mn.

Słowa kluczowe

EN

heartwood discolouration; dendrology; mineral; trunk heartwood; enzyme; tree; fungi; Quercus robur; oak

• Wydawca: -
• Czasopismo: Acta Societatis Botanicorum Poloniae
• Rocznik: 2007
• Tom: 76
• Numer: 1
• Opis fizyczny: p.55-60,ref.

Twórcy

autor

Przybyl K.

• Polish Academy of Sciences, Parkowa 5, 62-035 Kornik, Poland