The pollen morphology of nine Limonium species (Plumbaginaceae), occurring along the coastal saline habitats of Turkey, are investigated. Pollen slides were prepared according to the methods of Wodehouse (W) and Erdtman (E) and examined using light microscope. Then pollen grains were placed directly to stubs and covered by gold-palladium mixture for scanning electron analyses. Pollen grains are usually tricolpate, rarely syncolpate, dicolpate, tetracolpate, and pentacolpate. Shape of pollen grains are varing from prolate-sphaeroidal to oblate. Medium to large sized pollen grains of Limonium has long and wide colpi with distinct margins, and acute terminals. Exine structure is semi-tectate and exine ornamentation is microreticulate-microechinate or reticulate-microechinate. Pollen grains of Limonium species have shown variation on colpus type, shape and exine ornamentation. Examined Limonium species can be seperated in three unformal groups according to the palynological features, and their pollen definitions have been done. Besides, a taxonomic key was proposed for quick and accurate identification based on different palyno-morphological characters.
D ünya çapında yirmi türü bulunan Tordylium (Apiaceae) türlerinin onsekizi Türkiye'de bulunmaktadır ve bunların yedisi endemiktir. Bu araştırmada T. apulum, T. pestalozzae, T. syriacum ve T. trachycarpum'un karyotipleri ve T. cappadocicum, T. aegaeum, T. hasselquistiae, T. ketenoglui (endemik), T. macropetalum (endemik), T. pustulosum (endemik)'un ise karyotipleri ve kromozom sayıları ilk kez verilmiştir. Tordylium türleri kromozom sayılarına göre 2n=8, 16, 18, 20 ve 22 olmak üzere beş sitotipe ayrılmıştır. Bunun yanında, haploid kromozom setinin idiyogramları, kromozom kollarının uzunluğu, kol oranları, sentromerik indeks, nispi uzunluk ve haploid karyotip formülleri verilmiştir. En uzun kromozom boyuna T. ketenoglui (3,39-1,66 µm), en kısasına ise T. aegaeum (1,10-0,59 µm) sahiptir. Ayrıca, kantitatif karyolojik karakterler kullanılarak temel öğeler analizi (PCA) yapılmıştır. PCA sonuçları, karyolojik karakterler arasından medyan tipinin ve haploid kromozom uzunluğunun anlamlı değişkenler olduğunu göstermiştir. Ayrıca, Tordylium'un karyolojik verileri, mevcut infragenerik sınıflandırması ve filogenetik hipoteze dayalı morfolojik veri seti arasındaki korelasyonu tartışılmıştır. Mevcut infragenerik sınıflandırma ile filogenetik hipotez arasındaki uyumsuzluğa benzer bir durum karyolojik karakterlerle de söz konusudur. Filogeninin ışığında, atasal kromozom sayısının 2n=16 olduğunu söylenebilir. Anahtar KelimelerSitotip, karyotip evrimi, temel öğeler analizi, Tordyliinae.
Long term pollen trend studies are important to precisely estimate the pollen season, and determine the meteorological factor which is effect on pollen concentrations. Ankara is the city which is the longest pollen survey has been done by both of gravimetric and volumetric methods in Turkey. Airborne pollen was monitored by continuous sampling with a Hirst volumetric sampler. We examined the long term trends in airborne pollen concentrations in Ankara, Turkey, over the period 1990-2011 by using linear regression and correlation analysis using mean annual and monthly pollen concentrations. We also tested for general monthly pollen concentration trends and effect of meteorological factors towards between the years. There was decreasing trend in total pollen concentration. We observed a significant increase in January, February, October and November and a decrease in from March to September and December by comparing monthly pollen concentrations. Regarding the pollen-season related attributes, there were very few significant trends. Consequently, pollen could seem to display a faster response to climate change than other airborne particles.
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