Response of silver birch (Betula pendula Roth.) seedlings to experimental variation in aluminum concentration

• Autorzy: Bojarczuk Krystyna , Oleksyn Jacek , Karolewski Piotr , Żytkowiak Roma
• Języki publikacji: EN

Abstrakty

EN

The process of soil degradation and destabilization of forest ecosystem by industrial pollution is frequently associated with mobilization of toxic. Al^3+ ions. Both these processes exert a negative influence on tree root systems and may even result in the decline of whole forest stands. One-year-old seedlings of silver birch (Betula pendula Roth.) grown in pots were treated with a range of aluminum sulfate concentrations in order to test the effects of Al on growth, root structure, content of phenolic compounds and mineral nutrition of roots and foliage. Plants exposed to Al concentrations exceeding 50 mg Al dm^-3 had reduced growth, root structure and a substantial increase of Al concentration occurred in foliafe and roots. Concentration of several elements in the foliage and roots declined with increasing Al concentration, including Mg and Ca , and to a lesser extent, P, K, and Na. Most root traits such as root mass or root growth rate were more strongly affected by Al than the foliage. Changes in root Ca, Al and Ca:Al ratio, and root morphology were detected at the lowest Al concentration (50 mg Al dm^-3) indicating usefulness of these traits as early indicators of adverse aluminum effects on plants.

Słowa kluczowe

EN

phenolics; silver birch

PL

Betula pendula; brzoza brodawkowata; fenoplasty

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2006
• Tom: Vol. 54, nr 2
• Strony: 189--200
• Opis fizyczny: Bibliogr. 38 poz.,

Twórcy

autor

Bojarczuk Krystyna

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik, Poland

autor

Oleksyn Jacek

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik

autor

Karolewski Piotr

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik

autor

Żytkowiak Roma

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik,

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