Repository logoGCRIS
  • English
  • Türkçe
  • Русский
Log In
New user? Click here to register. Have you forgotten your password?
Home
Communities
Browse GCRIS
Overview
GCRIS Guide
  1. Home
  2. Browse by Author

Browsing by Author "Selvi, Selami"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Results Per Page
  • Sort Options
  • Loading...
    Thumbnail Image
    Article
    Türkiye’de Yayılış Gösteren Chorispora Dc. (Brassicaceae) Türleri Üzerinde Karşılaştırmalı Anatomik Çalışmalar
    (2017) Selvi, Selami; Ünal, Murat; Satıl, Fatih
    Chorispora DC. (Brassicaceae) cinsi Türkiye'de üç türle temsil edilmektedir. Bu çalışmada Türkiye'de doğal olarak yayılış gösteren Chorispora türleri (C. tenella, C. iberica, C. purpurascens) üzerinde karşılaştırılmalı anatomik araştırmalar yürütülmüştür. Anatomik çalışmalarda, türlerin gövde ve yapraklarından elle alınan enine kesitler ışık mikroskobunda incelenmiştir. Anatomik çalışmalar sonucunda; Chorispora' nın Brassicaceae familyasının salgı tüyü içeren nadir cinslerinden birisi olduğu görülmüştür. İncelenen türlerin gövde ve yaprak anatomik yapıları birbirine benzer olduğu tespit edilmiştir. Cinsin gövde parankima hücreleri klorankimatik ve çok tabakalıdır. Yaprak mezofil tipi bifasiyal ve stoma tipi anizositiktir. Sonuç olarak, trikomların varlığı, orta damar bölgesindeki demetlerin tek yada ikili olması, gövde floem tabakasında sklerankimanın varlığı gibi karakterler türlerin teşhisinde kullanılabilecek önemli karakterler olarak belirlenmiştir
  • Loading...
    Thumbnail Image
    Article
    Palynological Observations on the Genus Gundelia L. (Asteraceae) Growing in Turkey
    (Magnolia Press, 2021) Firat, Mehmet; Selvi, Selami
    The pollen morphology of 17 taxa of Gundelia, of which 13 taxa are endemic to Turkey, was investigated by light microscopy (LM) and scanning electron microscopy (SEM). In this study, the pollen morphology of 16 taxa except G. tournefortii was investigated for the first time. The quantitative data were analyzed by descriptive statistics and multivariate statistics. The pollen grains are oblate spheroidal and prolate spheroidal in shape with the polar diameter of 37.01-61.2 mu m and the equatorial diameter of 31.2-63.4 mu m. The smallest pollen grains were observed in G. anatolica, G. rosea and G. tournefortii, while the largest pollen grains were observed in G. vitekii, G. komagenensis and G. colemerikensis. Pollen ornamentation is echinate in LM and echinate-microperforate in SEM. Statistically, the relationships between pollen characters of the examined taxa were identified using Principal Component Analysis (PCA) and Clustering Analyzis. In addition, a dendrogram was constructed by applying UPGMA based on the determined 15 pollen morphological characters, and the degree of their relationship was discussed. Polar axis, equatorial diameter and colpus length were the major explanations of the pollen morphological characters' total variation in PCA. Pair group method was used to divide the main pollen taxa into three groups based on the pollen morphology by using arithmetic averages analysis (PCA scatterplot and cluster analysis). As a result, the pollen shape, polar axis, equatorial diameter and spine length were important characters distingushing the taxa from each other. We found some matches and mismatches between pollen and morphological characters, whose significance requires further study.
Repository logo
Collections
  • Scopus Collection
  • WoS Collection
  • TrDizin Collection
  • PubMed Collection
About
  • Contact
  • GCRIS
  • Research Ecosystems
  • Feedback
  • OAI-PMH

Powered by Research Ecosystems

  • Privacy policy
  • End User Agreement
  • Feedback