20.500.12556/DiRROS-25592 Pollen morphological study of some species of the genus Rubus L. (Rosaceae) of the flora of Armenia Pollen morphology of 10 Armenian species of the genus Rubus L. was studied using both light microscopy (LM) and scanning electron microscopy (SEM), including the species R. candicans, R.cartalinicus and R. takhtadjanii investigated for the first time. The data received revealed the significant palynomorphological uniformity in the aperture type: mainly 3-zonocolporate, geniculate, occasionally 4-zonocolp-orate one. In some 4-zonocolporate pollen grains of the species R. armeniacus, additional slit-like or colpus-like areas were also noted at one or both poles. Exine ornamentation was predominantly finely striate-perforate (SEM), sometimes in combination with finely striate-microreticulate one (R. armeniacus and R. caesius). Pollen grains were small, sometimes of medium size also. The smallest pollen grains (according to polar axis length) were observed in the species R. takhtadjanii (on average 14.2 μm), and the largest ones in R. caucasicus (on average 26.3 μm). Our data support the previously held view that pollen grain morphology within the genus Rubus can only be used as an auxiliary feature for the diagnosis of individual species. S pomočjo svetlobne (LM) in vrstične elektronske mikroskopije (SEM) smo preučili morfologijo pelodnih zrn desetih vrst rodu Rubus iz Armenije. Pelod vrst R. candicans, R.cartalinicus in R. takhtadjanii smo preučili prvič. Dobljeni rezultati kažejo značilno palinomorfološko uniformnost tipa odprtine, večinoma 3-zonokolporatne, genikulatne, občasno 4-zonokolporatne. Pri nekaterih 4-kolporatnih pelodnih zrnih vrste R. armeniacusse pojavljajo še dodatne strukture, podobne brazdam na obeh polih. Ornamentacija eksine je bila večinoma striatno-perforatna (SEM), včasih v kombinaciji s fino striatno-mikroretikulatno (R. armeniacus in R. caesius). Pelodna zrna so bila majhna, včasih tudi srednje velika. Najmanjša pelodna zrna (glede na dolžino polarne osi) ima vrsta R. takhtadjanii (v povprečju 14,2 μm), vrsta R. caucasicus pa največja (v povprečju 26,3 μm). Ugotovitve prejšnjih raziskav, da lahko morfologijo pelodnih zrn pri vrstah rodu Rubus uporabljamo samo kot pomožne znake za opis posameznih vrst, je potrdila tudi naša raziskava. brambles pollen aperture exine ornamentation light microscopy scanning electron microscopy robide pelodna odprtina ornamentacija eksine svetlobna mikroskopija vrstična elektronska mikroskopija true false true Angleški jezik Slovenski jezik Imetniki avtorskih pravic na prispevkih so avtorji Neznano 2026-01-24 11:36:58 2026-01-24 11:36:58 2026-01-25 03:45:59 0000-00-00 00:00:00 2025 0 0 str. 67-81 št. 1 letn. 24 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-08-26 582.639.12:581.33(479.25) 1581-4661 10.3986/hacq-2025-0006 230912771 https://ojs.zrc-sazu.si/hacquetia/article/view/13749/12098 1 9d2a3c64-f910-11f0-a15d-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=38782 HACQUETIA_24-1_2025_6_Hayrapetyan+et+al.pdf HACQUETIA_24-1_2025_6_Hayrapetyan+et+al.pdf 1 AC55DF4CAA6755CBE37B403064615A91 349c9d24a8195606586e6fe265226bb278fae7f2da354d4a2e546de9075dbb3f 2f678d49-f911-11f0-a15d-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=38783 Znanstvenoraziskovalni center Slovenske akademije znanosti in umetnosti Hacquetia 0 0 0