Anatomical and physiological changes in Iris pumila leaves in the unpolluted and polluted environment
2015
Аутори:
Barišić Klisarić, NatašaAvramov, Stevan
Miljković, Danijela
Živković, Uroš
Tarasjev, Aleksej
Остала ауторства
Uzelac, BrankaТип документа:
Конференцијски прилог (Објављена верзија)
,
© 2015 by the Serbian Plant Physiology Society
Метаподаци
Приказ свих података о документуАпстракт:
Plants are capable of sensing various types of stress and plant stomata, as well as photosynthetic pigments
may play an important role in response to altered environmental conditions in order to maintain optimal
photosynthetic efficiency, carbon uptake and water metabolism. In this survey, we estimated the stomatal
density and photosynthetic pigments concentration of Iris pumila leaves as an indicator of antropogenically
induced stress (traffic pollution). Leaf samples were taken from one unpolluted site – Deliblato sands
(natural protected area), and one polluted site (along the main road Belgrade-Novi Sad), where replicas of
the clones selected in the unpolluted site were previously transplanted. We measured anatomical (Stomatal
density) and physiological traits (Chlorophyll a (Chla), Chlorophyll b (Chlb), Carotenoid (C) and Total chlorophyll
(ChlT) concentration, the ratio of Chlorophyll a to Chlorophyll b, and the ratio of Chlorophyll a to Carotenoids).
Estimated parameters differed significantly between studied sites. We detected statistically significant
increase in stomatal density in polluted sites. Chla, Chlb and C concentrations, as well as ChlT and Chla/C
showed significantly lower values in a polluted environment. Cha/b ratio showed significantly higher values
in plants originating from the polluted habitat. We can conclude that there was a decrease in photosynthetic
pigments in polluted habitat, as well as change of Chla/C ratio in favor of carotenoids that serve as photo
protective pigments. All these conclusions confirm that stomatal density and concentration of relevant pigments
can serve as a stress indicator in this protected species.
Кључне речи:
anthropogenic pollution; Stomatal density; photosynthetic pigments; Iris pumilaФинансирање / пројекти:
- Еволуција у хетерогеним срединама: механизми адаптација, биомониторинг и конзервација биодиверзитета (RS-MESTD-Basic Research (BR or ON)-173025)
У:
- Uzelac B, editor. Book of Abstracts: 2nd International Conference on Plant Biology, 21th Symposium of the Serbian Plant Physiology Society, and CОST Action FA1106 Quality Fruit Workshop; 2015 Jun 17-20; Petnica, Serbia. Belgrade: Serbian Plant Physiology Society: Institute for Biological Research “Siniša Stanković”; 2015. p. 133.