Vesile Ebru KARAKAŞ, Şule ÖZTÜRK, Şaban GÜVENÇ, Seyhan ORAN

Physiological responses of epiphytic lichens to air quality of Nilüfer district in Bursa city Bursa şehrindeki Nilüfer ilçesinde epifitik likenlerin hava kalitesine karşı verdiği fizyolojik tepkiler

Bu çalışmada, kirleticilerden uzak bir kırsal alan olan Uludağ Kirazlıyayla'da belirlenen bölgeden likenlerle kaplı Abies sp. dalları, Bursa şehrinin merkez ilçesi Nilüfer'de, kirleticilere daha fazla maruz kalan bir bölgeye nakledildi. Epifitik liken türlerinin (Hypogymnia physodes (L.) Nyl., Parmelia sulcata Taylor ve Pseudevernia furfuracea (L.) Zopf) fotosentetik pigment içerikleri üçer aylık zaman aralığıyla ölçülmüş, bir yıllık pigment değişim oranları ve mevsimsel kirleticilere maruz kalma istatistiksel olarak değerlendirilmiştir. Klorofil bozulması H. physodes numunelerinde kontrole göre kış aylarında artmış, yaz aylarında ise azalmıştır. P. furfuracea örnekleri için kışın azaldı ve yazın arttı. P. sulcata'da, kontrol ve nakledilen numunelerde ölçülen değerler arasında anlamlı bir fark bulunmadı. Klorofil bozulması, uzun transplantasyon süresi olan kontrol örneklerine kıyasla P. furfuracea için önemli ölçüde artar ve P. sulcata için azalır. Klorofil a miktarı, H. physodes ve P. sulcata için transplantasyon süresinin uzamasına bağlı olarak kontrol örneklerine göre önemli ölçüde azalırken, P. furfuracea'daki değişim önemli değildi. Klorofil b ve karotenoit içeriği, transplantasyon süresinin uzamasına bağlı olarak kontrol örneklerine kıyasla her üç liken türünde de önemli ölçüde azalmıştır.

Anahtar Kelimeler:

Bursa, chlorophyll content, photosynthetic pigment, epiphytic lichens

Bursa şehrindeki Nilüfer ilçesinde epifitik likenlerin hava kalitesine karşı verdiği fizyolojik tepkiler

In this study, Abies sp. branches lined with lichens from the region determined in Uludag Kirazlıyayla, a rural area far from atmosferic pollutants, were placed in a region in Nilüfer, the central district of Bursa city, which is exposed to pollutants more by transplanting. Photosynthetic pigment content of epiphytic lichen species (Hypogymnia physodes (L.) Nyl., Parmelia sulcata Taylor and Pseudevernia furfuracea (L.) Zopf) was measured in three-months periods, and one-year pigment exchange rates and seasonal exposure to pollutants were statistically evaluated. Chlorophyll degradation increased in winter months and decreased in summer months for H. physodes samples compared to control. It decreased in winter and increased in summer for P. furfuracea specimens. In P. sulcata, no significant difference was found between the values measured in the control and transplanted samples. Chlorophyll degradation is significantly increased for P. furfuracea compared to control specimens with prolonged transplantation time and decreased for P. sulcata. The amount of chlorophyll a decreased significantly for H. physodes and P. sulcata compared to the control samples due to the prolongation of the transplantation period, while the change in P. furfuracea was not significant. Chlorophyll b and carotenoid content were significantly decreased in all three lichen species compared to the control samples due to the prolongation of the transplantation period.

Keywords:

Bursa, klorofil içeriği, fotosentetik pigment, epifitik likenler,

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