tailieunhanh - Isolation and abundance of unicellular cyanobacteria from mosquito development sites

The genus composition of cyanobacteria (particularly Chroococcus sp.) and their abundance in mosquito breeding sites at Lake Mogan (Ankara, Turkey) increased from August to September. Six unicellular cyanobacteria that had different morphological properties were isolated and succesfully cultivated. | Tr. J. of Biology 23 (1999) 451–456 © TÜBİTAK Isolation and Abundance of Unicellular Cyanobacteria From Mosquito Development Sites Gönül ÇETİNKAYA-DÖNMEZ, Ayşe ELMACI, Olcay OBALI Department of Biology, Faculty of Science, University of Ankara, Tandoğan, Ankara-TURKEY Ayten ÖZTÜRK Department of Biology, Faculty of Ed. Science, University of Niğde, Niğde-TURKEY Lütfü ÇAKMAKÇI Department of Food Engineering, Faculty of Agriculture, University of Ankara, Ankara-TURKEY Received: Abstract:The genus composition of cyanobacteria (particularly Chroococcus sp.) and their abundance in mosquito breeding sites at Lake Mogan (Ankara, Turkey) increased from August to September. Six unicellular cyanobacteria that had different morphological properties were isolated and succesfully cultivated. According to the mode of division, these six strain were classified as the represantatives of subgroup 1 (order Choroococcales). One of the isolates was identified as Synechococcus sp. and one as Gloeocapsa sp., and four were identified as Synechocystic sp. One of the four Synechocystis spp. was shown to be capable of heterotrophic growth. Key Words: Cyanobacteria, Isolation, Identification, Mosquito Breeding Sites. Sivrisinek Beslenme Alanlarındaki Tek Hücreli Cyanobacter’lerin Yoğunluğu ve İzolasyonları Özet: Mogan Gölü (Ankara-Türkiye) sivrisenek beslenme alanlarındaki Cyanobacter cinsleri ve yoğunluklarının Ağustos-Eylül döneminde (özellikle Chroococcus sp. miktarının) arttığı belirlenmiştir. Alınan su örneklerinden altı adet tek hücreli Cyanobacter izole edilerek bunların kültürleri hazırlanmıştır. İzole edilen Cyanobacter’lerin bölünme şekillerine görelt grup 1’e (Choroococcales), ve bunlardan birinin Synechococcus, birinin Gloecapsa sp., ve dördünün de Synechocystis sp. oldukları saptanmıştır. İzole edilen Synechocystis suşlarından sadece birisinin heterotrofik gelişme özelliği ile diğerlerinden ayrıldığı da yapılan çalışmalar sonucunda belirlenmiştir. Anahtar .