ENDEMİK THYMUS BRACHYCHILUS JALAS (LAMIACEAE) ÜZERİNDE ANATOMİK, PALİNOLOJİK VE MİKROMORFOLOJİK ARAŞTIRMALAR

Amaç: Bu çalışmada, endemik Thymus brachychilus Jalas'ın anatomik ve palinolojik özelliklerinin araştırılması amaçlanmıştır. Gereç ve Yöntem: Anatomik inceleme için bitki materyali %70 alkol içinde fikse edildi. Gövde ve yaprak enine kesitleri, yaprak yüzey kesitleri sartur solüsyonu ile boyandı ve anatomik açıdan incelendi. Yaprak ve gövdenin trikom yapıları, mezofil hücreleri, stoma indeksi, salgı ve örtü tüyleri incelendi, aynı zamanda diğer Thymus türlerinin anatomik bulguları ile karşılaştırıldı. Ayrıca anatomik yapıların ölçümleri yapıldı. SEM'de polen, çiçek kısımları, yaprakların epidermis ve trikom yapısı, kısımları incelenmiştir. Sonuç ve Tartışma: Thymus brachychilus üzerinde yapılan ilk anatomik, palinolojik ve mikromorfolojik çalışmadır. Yaprağın epidermisi tek sıra uzun şekilli hücrelerden oluşur ve ince bir kütikül ile kaplanmıştır. Üst ve alt epidermiste glandüler olmayan ve glandüler trikomlar vardır. İki farklı tipte nonglandüler trikom bulundu. Stomalar diastiktir ve epidermis amfistomatiktir. Mezofil tabakası dorsiventraldir. Gövde enine kesiti karedir. En dıştaki tek sıralı, uzun, kare veya dikdörtgen epidermis ince bir kütikül ile kaplıdır. Polen simetrisi izopolardır ve şekli suboblate. Hexacolpate ve bireticulate özelliklere sahiptir.

Anahtar Kelimeler:

Aladağlar, mikromorfoloji, palinoloji, bitki anatomisi, Thymus brachychilus

ANATOMICAL, PALYNOLOGICAL AND MICROMORPHOLOGICAL INVESTIGATIONS ON ENDEMIC THYMUS BRACHYCHILUS JALAS (LAMIACEAE)

Objective: In this study, it was aimed to investigate the anatomical and palynological features of endemic Thymus brachychilus Jalas. Material and Method: The plant material was fixed in 70% alcohol for anatomical investigation. Cross sections of the stem, leaves, and leaf surface sections were stained with sartur solution, and the anatomical aspects were examined. The trichome architectures, mesophyll cells, stomatal index, and glandular and non-glandular trichomes features of leaves and stem have been investigated and compared with the other Thymus species anatomical findings. In addition, measurements of anatomical structures were made. Pollen, flower parts, epidermis and trichome structure of the leaves, were examined in SEM. Result and Discussion: This is the first anatomical, palynological and micromorphological study on Thymus brachychilus. The epidermis of leaf consists of a single row of elongated shaped cells and is covered with a thin cuticle. There are nonglandular and glandular trichomes in the upper and lower epidermis. Two different types of nonglandular trichomes were found. Stomata are diacytic, and the epidermis is amphistomatic. The mesophyll layer is dorsiventral. The stem cross-section is square. The outermost single-row, elongated, square or rectangular epidermis is covered with a thin cuticle. The pollen symmetry is isopolar, shape is suboblate. It has hexacolpate and bireticulate properties.

Keywords:

Thymus brachychilus, plant anatomy, Aladağlar, micromorphology, palynology,

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