20.500.12556/DKUM-64364 Anatomske značilnosti izbranih vrst halofitov slovenske obale Anatomical characteristics of selectet halophytes from the Slovenian coast Diplomsko delo obsega raziskavo, s katero smo želeli proučiti anatomske in funkcionalne značilnosti halofitov slovenske obale in rezultate predstaviti v obliki anatomskega atlasa. Te vrste so: Halimione portulacoides, Atriplex hastata, Suaeda maritima, Arthrocnemum fruticosum, Limonium angustifolium, Aster tripolium, Inula crithmoides, Artemisia caerulescens, Juncus maritimus. Raziskavo smo izvajali v laboratoriju za biologijo Fakultete za naravoslovje in matematiko Univerze v Mariboru. Ker so halofiti prilagojeni na slana rastišča s številnimi mehanizmi ter anatomskimi in funkcionalnimi prilagoditvami, smo za vsako nabrano vrsto naredili sveže mikroskopske preparate različnih rastlinskih organov s prostoročnim rezanjem. Uporabili smo svetlobni mikroskop nadgrajen s fluorescenco. Posneli smo fotografije ter izdelali skice. Želeli smo predvsem izpostaviti anatomsko zgradbo in strukture nabranih vrst ter njihovo razporeditev, ki je ključnega pomena za življenje v slanem okolju. Z raziskavo smo potrdili, da so vse vrste, ki smo jih proučili, imele anatomske prilagoditve v povezavi s stresom povišane slanosti. Proučene vrste so bile prilagojene na ekstremne razmere s sukulenco, solnimi žlezami, specializiranimi trihomi, odebeljenimi epidermalnimi celicami z debelo kutikulo, povečano vsebnostjo opornih in mehanskih tkiv itd. Mnoge posebnosti, ki jih imajo halofiti, so značilne tudi za rastline, ki živijo v pomanjkanju vode. Stres slanosti predstavlja fiziološko sušo in odziv rastlin je podoben odzivu na sušo, saj voda vstopa v rastlino po principu razlik v vodnem potencialu. Koncentracija soli je v slanih tleh večja in posledično je voda v takem okolju za rastlino manj dostopna. The thesis comprises research, with which we wanted to examine the anatomical and functional characteristics of halophytes of Slovenian coast and presents results in the form of an anatomical atlas. These species are: Halimione portulacoides, Atriplex hastata, Suaeda maritima, Arthrocnemum fruticosum, Limonium angustifolium, Aster tripolium, Inula crithmoides, Artemisia caerulescens, Juncus maritimus. The research was conducted in the laboratory of Biology, at the Faculty of Natural Sciences and Mathematics. Since the halophytes are adapted to saline habitats with multiple mechanisms, we needed to make fresh microscope slides of different plant organs by manually cutting. We used a light microscope upgraded with fluorescence. Images were recorded and sketches were produced. We wanted to recognize anatomical structures, which are essential for life in a salty environment. The study confirmed that all studied species exhibit anatomical adaptations, which enable them to tolerate salt stress. Studied species are adapted to extreme conditions by succulent tissue, salt glands, specialized trichomes, thickened epidermal cells with cutinized cell walls, developed enhancing and supporting tissue, etc. Many features, characteristic for halophytes, are also typical for plants tolerant to drought. Salt stress is in close association with water stress and is regarded as a form of physiological drought. The increased concentration of salt in saline soils prevents water to be available for non-halophytes – plants without special adaptations. slanuše slovensko primorje Halimione portulacoides Atriplex hastata Suaeda maritima Arthrocnemum fruticosum Limonium angustifolium Aster tripolium Inula crithmoides Artemisia caerulescens Juncus maritimus halophytes saline habitats the Slovenian coast Halimione portulacoides Atriplex hastata Suaeda maritima Arthrocnemum fruticosum Limonium angustifolium Aster tripolium Inula crithmoides Artemisia caerulescens Juncus maritimus true true false [N. Toplak] Slovenski jezik Angleški jezik Diplomsko delo 2016-09-27 23:06:47 2016-11-15 16:21:59 2022-07-05 03:07:17 2019-07-11 13:59:32 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 581.526.52(497.4)(043.2) 22762760 URN:SI:UM:DK:OKOO8IW7 UN_Toplak_Natalija_2016.pdf UN_Toplak_Natalija_2016.pdf 1 776FFB56EB3C8E91A54293A6B9741923 9cac0dddf82f67d4f35ef2454b20b51e900f871a8aa702ad7d3bbfa60d08c1f0 aed28594-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=106723 Fakulteta za naravoslovje in matematiko 0 0 0