Türkiye İçin Endemik Bir Bitki Olan Cousinia foliosa Boiss. & Bal. (Asteraceae) Üzerine Anatomik ve Palinolojik Bir Çalışma

Cousinia Cass. cinsi Asteraceae familyasının en büyük cinslerinden biri olup yaklaşık 700 türle temsil edilmektedir. Bu çalışma, Stenocephalae Bunge seksiyonu içerisinde yer alan Cousinia foliosa türünün anatomik ve palinolojik özelliklerinin belirlenerek cinsin sistematiğine katkı sağlamak amacıyla yapılmıştır. C. foliosa türünün polen mikromorfolojik özellikleri çalışılmış ve türe ait fotoğraflar verilmiştir. Bu türün anatomik çalışmasında gövde, yaprak ve orta damar özellikleri tespit edilerek fotoğrafları verilmiştir. Anatomik çalışmalar için bitki kısımları parafine gömülmüş ve dokuların boyanma işlemi için safranin fast green boyama metodu uygulanmıştır. Anatomik karakterlerden orta damar şeklinin dairemsi ve orta damardaki iletim demeti sayısının 8 olmasıyla bu karakterlerin türlerin ayrımında önemli olduğu belirlenmiştir. Palinolojik çalışmalar için ışık mikroskobu kullanılmış ve polen şekli subprolat olarak tespit edilmiştir. SEM mikroskobu kullanılarak polen ekzin yüzey süslerinin fotoğrafları çekilmiş ve polenlerin verrukoz olduğu belirlenmiştir.

Anahtar Kelimeler:

Anatomi, Cousinia, Palinoloji, Stenocephalae, Türkiye

Anatomical and Palynological Studies on Cousinia foliosa Boiss. & Balansa (Asteraceae), Which is an Endemic Plant to Turkey

The genus Cousinia Cass. is one of the largest genera of the Asteraceae family and is represented by about 700 species. This study is carried out in order to contribute to the systematic of the genus by determining the anatomical and palynological characteristics of the Cousinia foliosa species in the Stenocephalae Bunge section. Pollen micromorphological characteristics of C. foliosa species are studied and photos of the species are given. In the anatomical study of this species, its stem, leaf and midrib features are determined and photographs are given. For anatomical studies, plant parts are embedded in paraffin and safranin fast green staining method is applied for staining the tissues. From anatomical characters, it has been determined that the midrib shape is important in the differentiation of the species, with the number of orbicular and midrib vascular bundles being 8. For palynological studies are used light microscopy and pollen shape is determined as subprolate. Pollen exine sculpturing is taken photo and determined verrucose by using SEM microscoby.

Keywords:

Anatomy, Cousinia, Palynology, Stenocephalae, Turkey,

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