2192 KB0 KB199820242023Balzano, AngelaChiatante, DonatoČufar, KatarinaDimitrova, AnastazijaMerela, MaksMontagnoli, AntonioNyam-Osor, BatkhuuScippa, Gabriella S.Tsedensodnom Chimgee, Enkhchimegštevilka:2letnik:72str. 37-48DOI:10.26614/les-wood.2023.v72n02a02COBISSID_HOST:176550403ISSN:2590-9932URN:URN:NBN:SI:doc-ANR910U5enZaložba UniverzeLes (Ljubljana)cambiumdeblofloemkambijkoreninaksilemmicrocoremikro izvrtekphloemPopulus sibiricarootSiberian elmSiberian poplarsibirski brestsibirski topolstemUlmus pumilaxylemAnatomy of xylem and phloem in stems and roots of Populus sibirica and Ulmus pumila from semi-arid steppe in Mongolia| Anatomija ksilema in floema debel in korenin drevesnih vrst Populus sibirica in Ulmus pumila iz polsuhestepe v Mongolij|The present study focuses on the cambium and the anatomy of secondary tissues (xylem – wood and phloem) of Siberian poplar (Populus sibirica) and Siberian elm (Ulmus pumila) grown in a plantation in the semi-arid Mongolian steppe. Stem and root microcores from both species were collected and subsequently processed to obtain cross-sections for light microscopy by paraffin embedding, sectioning with a rotary microtome, and staining with safranin and astra blue. The results present the anatomy of the secondary xylem and phloem of stems and roots of both species, along with the characteristics of the youngest xylem and phloem annual rings. We discuss the critical aspects which need to be considered when using the microcoring methodology, along with the need for further studies on wood and phloem formation of less-commonly studied tree species and their characteristics when grown in semi-arid environmentsRaziskali smo kambij in anatomijo sekundarnih tkiv (ksilema - lesa in floema) sibirskega topola (Populus sibirica) in sibirskega bresta (Ulmus pumila) s plantaže v polsuhi stepi v Mongoliji. Tkivo za analize (mikro izvrtke) smo odvzeli iz debel in korenin dreves. Mikro izvrtke smo vklopili v parafin in z rotacijskim mikrotomom narezali preparate prečnih prerezov, ki smo jih obarvali z barviloma safranin in astra modro in pregledali pod svetlobnim mikroskopom. Rezultati predstavljajo anatomijo ksilema in floema debel in korenin obeh vrst. Posebno pozornost smo posvetili prikazu značilnosti najmlajših letnih prirastkov ksilema in floema. V razpravi poudarjamo kritične vidike metodologije odvzema, priprave mikro izvrtkov in anatomskih preparatov, ter potrebo po nadaljevanju raziskav nastajanja ter lastnosti lesa in floema manj znanih drevesnih vrst iz polsuhih okolijTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZveza lesarjev Slovenije