Fruit and seed morphology of some Alyssum (Brassicaceae) taxa from Anatolia

Abstract

The fruit and seed morphologies of five taxa (Al. desertorum Sapf., Al. linifolium Stephan ex. Willd. var. teheranicum Bornm., Al. minus (L.) Rothm. var. minus, Al. strigosum Banks & Sol. subsp. cedrorum (Schott & Kotschy) and Al. strigosum Banks & Sol. subsp. strigosum) belonging to Alyssum L. were investigated with scanning electron microscopy (SEM) in order to determine the significance of fruit and seed features as taxonomic characters. This study presents macro- and micromorphological characters, including seed shape, winged, measures, epidermal cell pattern and fruit shape, colour, measures, trichome morphology. Three epidermal cell patterns were observed; micro-reticulate, normal-reticulate, rugose-foveate and the same number trichome morphologies were distinguished; glabrous, monomorphic (stellate), dimorphic (bifurcate and stellate). The results showed that the morphological characteristics of fruit and seed could be used as criteria to distinguish taxa.

Keywords

• Alyssum
• Brassicaceae
• Fruit
• Micromorphology Seed
• Silicula

Anadolu’dan bazı Alyssum (Brassicaceae) taksonlarının meyve ve tohum morfolojisi

Abstract

Alyssum L. cinsine ait olan beş taksonun (Al. desertorum Sapf., Al. linifolium Stephan ex. Willd. var. teheranicum Bornm., Al. minus (L.) Rothm. var. minus, Al. strigosum Banks & Sol. subsp. cedrorum (Schott & Kotschy) ve Al. strigosum Banks & Sol. subsp. strigosum) meyve ve tohum morfolojileri, taramalı electron mikroskobu (SEM) ile incelenerek taksonomik karakter olarak önemleri belirlendi. Makro- ve mikromorfolojik karakterleri, tohum şekli, kanatı, ölçüsü, epidermal hücre modeli ve meyve şekli, rengi, büyüklüğü, tüy morfolojisi incelendi. Üç epidermal hücre modeli; mikro-retikulat, normal-retikulat, rugoz-foveat gözlendi ve aynı sayıda tüy morfolojisi; tek morfolojili (stellat), çift morfolojili (bifurkat ve stellat) tespit edildi. Sonuçlar meyve ve tohumların morfolojik karakterlerinin taksonların ayrımında kullanılabileceğini göstermiştir.

Keywords

• Alyssum
• Brassicaceae
• meyve
• mikromorfoloji
• silikula
• tohum

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