Differences in Norway maple leaf morphology and anatomy among polluted (Belgrade city parks) and unpolluted (Maljen Mt.) landscapes
2006
Аутори:
Mitrović, MiroslavaPavlović, Pavle
Djurdjević, Lola
Gajić, Gordana
Kostić, Olga
Bojović, Srđan
Тип документа:
Чланак у часопису (Објављена верзија)
,
© Walter de Gruyter GmbH
Метаподаци
Приказ свих података о документуАпстракт:
Norway maple (Acer platanoides L.) is often used for urban landscaping because it is considered
to be tolerant to different ecological conditions. This study examined leaf anatomy and
morphology, and leaf damage symptoms (using the light and SEM microscopy) of maple tree
growing in three Belgrade city parks (high polluted sites: park “Hall Pioneer” and Botanical
garden “Jevremovac” within City industrial zone, and low polluted Kalemegdan park), and control
site (unpolluted) at Maljen Mt. during a two-year period. Microscopic measures included thickness
of leaves, upper and lower epidermis, palisade and spongy mesophyll and stomatal density.
Differences in leaf attributes varied significantly among sites. Leaves in parks within industrial
zone were thicker (with changes most expressed by the thickening of palisade mesophyll), smaller,
heavier and more voluminous from the control ones. Leaf damage were noted only in the urban
zone, expressed in form of light to dark colour chloroses, and reddish-brown marginal necroses
related to toxic effect of elevated concentrations of particulate matter, SO2, and Pb, Zn and Ni in
city air. Damage ranged from lesions to the last stadium of necrosis of whole mesophyll. SEM
microscopy indicated erosive damage of the cuticle and stomata. We concluded that the sensitivity
to air pollution of A. platanoides leaves is related to its leaf structure, low leaf volume and large
intercellular spaces. In the same time, the leaf structural change (due thickening of mesophyll
and increasing of leaf volume) follows the course of developing xeromorphic adaptations to the
stressful conditions of urban environment.
Кључне речи:
Acer platanoides; Air pollution; Leaf anatomy; Leaf damage; SymptomsИзвор:
Ekológia (Bratislava), 2006, 25, 2, 126-137Финансирање / пројекти:
- Екофизиолошке карактеристике биљака и њихов потенцијал у обнављању биодиверзитета нарушених екосистема (RS-MESTD-MPN2006-2010-143025)