Quercus macranthera subsp. syspirensis (K.Koch) Menitsky’in yaprak anatomisi

Abstract

Quercus L. (Fagaceae) cinsi dünya genelinde 461 tür ile temsil edilir. Yayılış alanları ılıman kuzey yarımküreden Malezya ve Kolombiya'ya kadardır. Quercus gövde kabukları tanen bakımından zengindir ve astrenjan olarak kullanılır. Q. macranthera subsp. syspirensis (K.Koch) Menitsky Türkiye için endemik olup "ispir meşesi" olarak bilinir. Bitki 7 m boylanan, yaprak döken küçük ağaçtır. Yapraklar 5-9 kısa loblu, obovat, filiform stipulalı, 6-10 primer damarlı ve 5-20 mm uzunluğunda yaprak saplıdır. Bitki materyali Kastamonu-Araç (Türkiye)'tan toplandı. Bir örneği Ankara Üniversitesi Eczacılık Fakültesi Herbaryumu (AEF)'na kaydedildi. Anatomik çalışmalar için numuneler %70 alkolde korundu. Enine ve yüzey kesitleri el ile jilet kullanılarak mikroskobik preparat haline getirildi. Mikroskobik incelemelerde Sartur solüsyonu kullanıldı. Anatomik analiz ve mikro fotoğraflama için Leica DM 4000B mikroskobu kullanıldı. Anatomik çalışma sonucuna göre, yaprak bifasiyaldir. Üst ve alt epidermada çok sayıda yıldız tüy bulunur. Stomalar sadece alt epidermada yer alır. Yaprak ve yaprak sapı kristaller içerir. Yaprak sapı çok sayıda yıldız tüy ile karakterizedir. İletim demetlerini sklerenkimatik doku halka şeklinde sarmıştır.

Keywords

• Quercus macranthera subsp. syspirensis
• Fagaceae
• yaprak
• anatomi
• endemik

Leaf anatomy of Quercus macranthera subsp. syspirensis (K.Koch) Menitsky

Abstract

The genus Quercus L. (Fagaceae) is represented by 461 species worldwide. Its distribution ranges from the temperate northern hemisphere to Malaysia and Colombia. Quercus bark is rich in tannins and is used as an astringent. Q. macranthera subsp. syspirensis (K.Koch) Menitsky is endemic to Turkey and is known as "ispir meşesi". The plant is a small deciduous tree up to 7 m tall. Leaves obovate with 5-9 short lobes, stipules filiform, primary veins 6-10 and petiole 5-20 mm. The plant material was collected from Kastamonu-Araç (Turkey). A voucher specimen was deposited in the Ankara University Faculty of Pharmacy Herbarium (AEF). The samples for anatomical studies were protected in 70% alcohol. The transverse and surface sections were cut by hand with razor blade into microscopic preparat form. The Sartur solution was used in microscopic examinations. Leica DM 4000B microscope was used for anatomical analysis and micro photographing. According to the results of the anatomical study, the leaf is bifacial. Numerous stellate hairs are found on the upper and lower epidermis. Stomata are located only on the lower epidermis. The leaf and petiole contain solitary crystals. The petiole is characterized by a numerous stellate hairs. The sclerenchymatous tissue surrounds the vascular bundles in the form of a ring.

Keywords

• Quercus macranthera subsp. syspirensis
• Fagaceae
• leaf
• anatomy
• endemic

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