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Anchusa L. (Boraginaceae) cinsine ait bazı taksonların Anchusa undulata L. subsp. hybrida (Ten.) Coutinho, Anchusa azurea Miller var. azurea, Anchusa leptophylla Roemer & Schultes subsp. incana (Ledeb.) Chamb.) yaprak sapı anatomisi

Authors: Sapmaz, Sibel; Akgül, Gençay;

Anchusa L. (Boraginaceae) cinsine ait bazı taksonların Anchusa undulata L. subsp. hybrida (Ten.) Coutinho, Anchusa azurea Miller var. azurea, Anchusa leptophylla Roemer & Schultes subsp. incana (Ledeb.) Chamb.) yaprak sapı anatomisi

Abstract

In this study, three taxa of the genus Anchusa L. (Boraginaceae) distributed in Turkey (A. leptophylla Roemer & Schultes subsp. incana (Ledeb.) Chamb., A. azurea Miller var. azurea, A. undulata L. subsp. hybrida (Ten.) Coutinho) petiole anatomical structures were investigated. Sections taken from the petiole of the samples belonging to the taxa were made into permanent preparations and examined under the light microscope (LM). Photographs of the anatomical sections of the species were taken with a light microscope with a camera. Cell diameter measurements were made in the program called LASEZ on these photographs. In order to better determine the variations, the highest (maximum) and the smallest (minimum) values of the anatomical petiole anatomical measurements were determined, and the petiole anatomical characteristics of the species were determined. As a result of the study, petiole shapes vary according to species. In A. leptophylla subsp. incana and A. azurea var. azurea, A. undulata ssp. hybrida it is straight and slightly concave. There is a cuticle layer on the single layered epidermis. The epidermis is single-rowed A. leptophylla ssp. incana with thick walls, and the cells are angular or oval. Chlorenchyma layer consisting of one or more rows of cells was found under the epidermis layer in the species. The collenchyma layer is multi-rowed at the petiole corners. The parenchyma layer covers a large area in all species. In the middle of the petiole, there is a single large vascular bundle, the shape of which varies according to the species (arc-shaped in A. leptophylla ssp. incana and A. undulata subsp. hybrida, slightly curved rectangular in A. azurea var. azurea). Towards the corners, there are different numbers of small vascular bundles of various sizes and generally rounded shapes. Conduction bundle is of closed collateral type. In addition, there are covering and glandular hairs on the epidermis of the species.

Bu çalışmada, Türkiye'de yayılış gösteren Anchusa L. (Boraginaceae) cinsine ait üç taksonun (A. leptophylla Roemer & Schultes ssp. incana (Ledeb.) Chamb. , A. azurea Miller var. azurea, A. undulata L. ssp. hybrida (Ten.) Coutinho, yaprak sapı anatomik yapıları incelenmiştir. Taksonlara ait örneklerin yaprak saplarından alınan kesitler, preparat haline getirilmiş ve ışık mikroskobunda (LM) incelenmiştir. Türlere ait anatomik kesitlerin fotoğrafları kameralı ışık mikroskobuyla çekilmiştir. Çekilen bu fotoğraflar üzerinden LASEZ adlı programda hücre çap ölçümleri yapılmıştır. Varyasyonların daha iyi belirlenebilmesi amacıyla, yapılan yaprak sapı anatomik ölçümlerinin en yüksek (maximum) ve en küçük (minimum) değerleri de tespit edilerek, türlerin yaprak sapı anatomik özellikleri belirlenmiştir. Yapılan çalışma sonucu türlere göre yaprak sapı şekilleri değişmektedir. A. leptophylla ssp. incana ve A. azurea var. azurea'da, genişçe oluklu ve köşeleri uzamış keskin kenarlı, A. undulata ssp. hybrida'da düz ve hafif konkavdır. Tek sıralı epidermis üzerinde bir kutikula tabakası bulunmaktadır. Epidermis tek sıralı A. leptophylla ssp. incana'da çeperleri kalın, hücreler köşeli veya ovaldir. Türlerde epidermis tabakası altında bir veya birkaç sıralı hücrelerden oluşan klorenkima tabakasına rastlanmıştır. Kollenkima tabakası yaprak sapı köşelerinde çok sıralıdır. Parankima tabakası tüm türlerde geniş bir bölgeyi kaplamaktadır. Yaprak sapı ortasında tek, şekli türlere göre değişen (A. leptophylla ssp. incana'da ve A. undulata ssp. hybrida yay şeklinde, A. azurea var. azurea'da genişçe yaysı şeklinde) büyük bir iletim demeti bulunmaktadır. Köşelere doğru irili ufaklı ve genellikle yuvarlak şekilli değişik sayıda küçük iletim demeti bulunmaktadır. İletim demeti kapalı kollateral tiptedir. Ayrıca türlerin epidermisleri üzerinde örtü ve salgı tüyleri bulunmaktadır.

Country
Turkey
Keywords

Türkiye, Turkey, Petiole, Anchusa, Anatomi, Anatomy, Boraginaceae, Yaprak sapı

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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