Investigation of Morphological, Anatomical and Micromorphological Characteristics of Centaurea cheirolopha (Fenzl) Wagenitz and Centaurea lycopifolia Boiss. & Kotschy (Asteraceae) Taxa

Yıl 2019, , 1341 - 1355, 31.12.2019

Burcu Yılmaz Çıtak , Hüseyin Dural , Rahim Aydın

https://doi.org/10.18185/erzifbed.515623

Öz

With this study, C.
lycopifolia and C. cheirolopha
which are close species with their anatomical, palynological and achene micro
morphological traits were presented in detail. The anatomical researches have
been carried out by paraffin method or using handmade sections. In the
anatomical structures of taxa, it was observed that C. cheirolopha contains sclerenchymatic cells and that two species
differed from each other. The cross sections taken from stems were reflected
the typical dicotyledonous stem anatomical structure and were determined that
species have cortex parenchyma with cylindrical shaped and collenchymatic
cells. The rows of vascular bundles in stem are two in C. lycopifolia as one in C.
cheirolopha. Mesophyll were detected as equifacial in both species in
leaves. The numbers of vascular bundles in midrib are variable between studied
species and were three in C. cheirolopha
and one in C. lycopifolia. The
studied taxa have monad, isopolar, prolate-spheroidal and tricolporate pollen
grains. For two examined species, exine sculpture were observed as
scabrate-perforate. Both of examined species have brown-straw color achene but C. cheirolopha has also distinct cream
lines. The shapes of pappus of spines were observed distinctly different in
species. As a conclusion, the characteristics of anatomical, palynological and
micro morphological in C. lycopifolia
and C. cheirolopha have been revealed
supporting the separation of species.

Anahtar Kelimeler

Anatomy, Centaurea, Compositae

Centaurea cheirolopha (Fenzl) Wagenitz ve Centaurea lycopifolia Boiss. & Kotschy (Asteraceae) Taksonlarının Anatomik ve Mikromorfolojik Karakterlerinin İncelenmesi

Öz

Bu
araştırma ile Türkiye’de yayılış gösteren Centaurea
cinsine ait morfolojik olarak birbirine oldukça yakın karakterlere sahip C. lycopifolia ve C. cheirolopha taksonlarının anatomik, palinolojik ve aken
mikromorfolojik özellikleri ayrıntılı olarak ortaya konulmuştur. Anatomik
araştırmalar, parafin yöntemi ya da el ile alınan kesitlerin kullanılmasıyla
gerçekleştirilmiştir. Türlerin anatomik yapılarında, kök korteksinde C.
cheirolopha’nın sklerenkimatik hücreler ihtiva etmesi ile iki türün
birbirinden farklılık gösterdiği gözlenmiştir. Gövdelerden alınan enine
kesitler, tipik dikotiledon anatomik yapısını yansıtmış olup, türlerin
silindirik yapıda korteks tabakası ile kollenkimatik hücreler ihtiva ettiği
tespit edilmiştir. Gövdedeki iletim demetlerinin sıra sayısı C. lycopifolia’da iki iken, C. cheirolopha’da tektir. Yaprak
anatomisinde mezofil dokusu her iki takson içinde ekvifasiyal olarak tespit
edilmiştir. Midripteki iletim demet sayısı yine türler arasında farklılık
göstermekte olup, C. cheirolopha’da
üç, C. lycopifolia’da tektir.
İncelenen türler, monad, izopolar, prolat-sferoidal ve trikolporat polen
tanelerine sahiptir. Her iki takson için ekzin skülptürü skabrat-perforat
olarak gözlenmiştir. Araştırılan taksonların her ikisi de kahverengi-saman
renkli akenlere sahip fakat C.
cheirolopha’da belirgin krem çizgiler mevcuttur. Pappustaki kılçık
şekillerinin taksonlar arasında açık şekilde farklılık gösterdiği
gözlemlenmiştir. Sonuç olarak, C.
lycopifolia ve C. cheirolopha
taksonlarının anatomik, palinolojik ve mikromorfolojik karakterlerinin
taksonların ayrımına destek sağladığı ortaya konulmuştur.

Anahtar Kelimeler

Anatomi, Centaurea, Asteraceae

Kaynakça

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