Spore Morphologies of Some Acrocarpous Mosses (Bryophyta): Taxonomical and Ecological Significance

Year 2022, , 106 - 113, 30.11.2022

Züleyha Aslan , Harun Çulha , Tülay Ezer , Cahit Doğan

https://doi.org/10.26672/anatolianbryology.1189719

Cited By: 1

Abstract

In this study, the spore morphologies of five different acrocarpous moss species (Weissia brachycarpa, Distichium inclinatum, Pterygoneurum ovatum, Ceratodon purpureus and Ptychostomum donianum) were investigated and discussed the taxonomical and ecological value of spores morphological characters of these species. Spores were prepared according to standard palynological techniques such as acetolysis and Wodehouse and analyzed using light microscopy to reveal sporoderm structures. The spores of the three moss species except Pterygoneurum ovatum and Ceratodon purpureus which are heteromorph are heteropolar and monolete. Also, in all species, the shape of the spores was determined as suboblate in equatorial view. In polar views, the shapes of spores vary as oblate-spheroid and suboblate. In equatorial view of the spores, the length of the polar axis (P) range from 9.60 μm to 27.90 μm on average, the length of the equatorial axis (E) is between 12.00 μm and 31.96 μm on average. The sporoderm layers of the spores were also examined and measured. It has been determined that the spores of the examined species have five different ornamentation types as verrucate, clavate-gemmate, baculate, clavate and baculate-clavate. The results obtained are discussed in terms of taxonomical and ecological aspects.

Keywords

Acrocarpous, Bryophyte, Moss, Spore, Taxonomy

Bazı Akrokarp Karayosunlarının (Bryophyta) Spor Morfolojileri: Taksonomik ve Ekolojik Önemi

Abstract

Bu çalışmada, beş farklı akrokarp karayosunu türünün (Weissia brachycarpa, Distichium inclinatum, Pterygoneurum ovatum, Ceratodon purpureus ve Ptychostomum donianum) spor morfolojileri araştırılmış ve bu türlerin palinolojik karakterlerinin taksonomik ve ekolojik önemi tartışılmıştır. Sporlar, asetoliz ve Wodehouse gibi standart palinolojik tekniklere göre hazırlandı ve sporoderm yapılarını ortaya çıkarmak için ışık mikroskobu kullanılarak analiz edildi. Heteromorf olan Pterygoneurum ovatum ve Ceratodon purpureus dışındaki üç karayosunu türünün sporları heteropolar ve monolettir. Ayrıca, tüm türlerde sporların şekli ekvatoral görünümde suboblat olarak tespit edilmiştir. Kutupsal görünümlerde, sporların şekilleri oblate-sferoid ve suboblate olarak değişmektedir. Sporların ekvatoral görünümünde kutup ekseninin uzunluğu (P) ortalama 9,60 μm ile 27,90 μm arasında, ekvator ekseninin (E) uzunluğu ise ortalama 12,00 μm ile 31,96 μm arasındadır. Sporların sporoderm tabakaları da incelenmiş ve ölçümleri yapılmıştır. İncelenen türlerin sporlarının verrukat, klavat-gemmat, bakulat, klavat ve bakulat-klavat olmak üzere beş farklı süsleme tipine sahip olduğu belirlenmiştir. Elde edilen sonuçlar taksonomik ve ekolojik açıdan tartışılmıştır.

Keywords

Akrokarp, Briyofit, Karayosunu, Spor, Taksonomi

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