TAILIEUCHUNG - Pollen and seed morphology of the genus Hesperis L. (Brassicaceae) in Turkey

Pollen and seed morphology were examined in 35 specimens representing 25 Turkish species of the taxonomically complex genus Hesperis L. by light and scanning electron microscopes. Three main types and 2 subtypes were recognized based on the seed coat surface, pollen shape, and exine sculpturing. | Research Article Turk J Bot 33 (2009) 83-96 © TÜBİTAK doi: Pollen and Seed Morphology of the Genus Hesperis L. (Brassicaceae) in Turkey Nur Münevver PINAR1,*, Ahmet DURAN2, Talip ÇETER3, G. Nilhan TUĞ1 1 Ankara University, Science Faculty, Department of Biology, 06100 Tandoğan, Ankara - TURKEY 2 Selçuk University, Education Faculty, Department of Biology Education, 42090 Meram, Konya - TURKEY 3 Kastamonu University, Arts and Sciences Faculty, Department of Biology, 37100 Kuzeykent, Kastamonu - TURKEY Received: Accepted: Abstract: Pollen and seed morphology were examined in 35 specimens representing 25 Turkish species of the taxonomically complex genus Hesperis L. by light and scanning electron microscopes. Three main types and 2 subtypes were recognized based on the seed coat surface, pollen shape, and exine sculpturing. The seed coat ornamentation of Type I was ocellate, and pollen shape was oblatespheroidal. While Type II was represented by reticulate seed coat and prolate-spheroidal pollen shape, Type III had tuberculate seed coat. This study revealed that both palynological and seed morphological characters are of significant importance in the taxonomy of the genus. Key Words: Cruciferae, Hesperis, morphology, pollen, seed, Turkey Türkiye Hesperis L. Cinsinin Polen ve Tohum Morfolojisi Özet: Taksonomik problemleri olan Hesperis L. cinsinin Türkiye’de yayılış gösteren 25 türüne ait 35 örneğin polen ve tohum yüzeyi morfolojisi ışık ve taramalı elektron mikroskobu ile çalışılmıştır. Tohum kabuğu yüzeyi, polen şekli ve ekzin skulpturuna göre üç ana tip ve iki alt tip saptanmıştır. Tip I’in tohum yüzeyi süsü ocellat, polen şekli oblat-siferoidal’dır. Tip II, retikülat tohum süsü ve prolatsiferoidal polen şekli ile, Tip III tüberkülat tohum yüzey süsü ile karakterize edilmiştir. Bu çalışma göstermiştir ki, hem palinolojik hemde tohum morfolojik karekterler cinsin taksonomik ayırımında öneme sahiptir. Anahtar .

• Nông nghiệp
• Hesperis L
• Seed morphology
• Pollen morphology
• Genus Hesperis L
• Scanning electron microscopes
• Journal of Botany
• Cyperoideae Cyperaceae taxa
• Epidermal cell shape
• Periclinal cell walls
• Body Imaging
• Like science Body Imaging
• Electron Microscopes
• X rays
• Contrast X rays
• CT Scanning
• Molecular analyses
• Stalked puffballs
• Fungal DNA barcode
• Nuclear ribosomal DNA