tailieunhanh - Leaf anatomy of Agropyron Gaertn. (Gramineae) in Turkey

Agropyron cristatum (L.) Gaertn. is represented by 2 subspecies in Turkey, namely subsp. incanum (Nábĕlek) Melderis and subsp. pectinatum (.) Tzvelev. This study examines the taxonomic significance of the leaf properties of the taxa of Agropyron Gaertn., comprising diagnostic anatomical features obtained from leaf transverse sections as well as leaf surface micromorphology. | D. Ö. MAVİ, M. DOĞAN, E. CABİ Research Article Turk J Bot 35 (2011) 527-534 © TÜBİTAK doi: Leaf anatomy of Agropyron Gaertn. (Gramineae) in Turkey D. Özlem MAVİ*, Musa DOĞAN, Evren CABİ Department of Biological Sciences, Middle East Technical University, 06530, Ankara - TURKEY Received: Accepted: Abstract: Agropyron cristatum (L.) Gaertn. is represented by 2 subspecies in Turkey, namely subsp. incanum (Nábĕlek) Melderis and subsp. pectinatum (.) Tzvelev. This study examines the taxonomic significance of the leaf properties of the taxa of Agropyron Gaertn., comprising diagnostic anatomical features obtained from leaf transverse sections as well as leaf surface micromorphology. Results of the study show that most of the characters, such as the shape of the leaf blades; the size and number of stomata; the density, arrangement, and length of macro hairs; and the presence or absence of midrib and bulliform cells are different in the studied samples of Agropyron cristatum. Key words: Agropyron, anatomy, Gramineae, Turkey Türkiye’deki Agropyron Gaertn. (Gramineae) cinsinin yaprak anatomisi Özet: Agropyron cristatum (L.) Gaertn. türü subsp. incanum (Nábĕlek) Melderis ve subsp. pectinatum (.) Tzvelev olmak üzere Türkiye’de 2 alttür ile temsil edilir. Bu çalışma, Agropyron Gaertn. türlerinde yaprakların, enine kesitleri ve yüzey mikromorfolojilerinden elde edilen ayırt edici anatomik özellikleri incelemektedir. Çalışmanın sonuçları, yaprak ayası şekli; stomaların büyüklükleri ve sayıları; makro tüylerin yoğunluk, dizilim ve uzunlukları; bulliform hücrelerinin ve orta damarın bulunup bulunmaması gibi pek çok karakterin, Agropyron cristatum’un çalışılan örneklerinde farklılık gösterdiği görülmektedir. Anahtar sözcükler: Agropyron, anatomi, Gramineae, Türkiye Introduction The genus Agropyron Gaertn. was once thought to be one of the largest genera in the tribe Triticeae Dumortier, comprising more than 100 .