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323. Elektrokemoterapija melanomaGregor Serša, Maja Čemažar, Nebojša Glumac, Marko Snoj, 2013, published professional conference contribution Abstract: Elektrokemoterapija je način zdravljenja raka, ki združuje uporabo standardnih kemoterapevtikov in aplikacijo električnih pulzov na območje tumorja. S tem se večkrat poveča učinkovitost bleomicina ali cisplatina samo na področju dovedenih električnih pulzov. Elektrokemoterapija je sedaj v Evropi uveljavljen način zdravljenja različnih kožnih tumorjev, predvsem pa se je uveljavila pri zdravljenju kožnih in podkožnih zasevkov melanoma. Njena učinkovitost je okrog 80 % objektivnih odgovorov in okrog 60 % popolnih odgovorov po enkratni terapiji, z možnostjo izboljšanja odgovora ob ponavljajoči se terapiji. Elektrokemoterapijo uporabljamo predvsem pri zdravljenju kožnih, podkožnih in tranzit zasevkov melanoma ter krvavečih tumorjev in zasevkov v predhodno tretiranih področjih.
Keywords: elektrokemoterapija, melanom, zdravljenje
Published in DiRROS: 31.08.2018; Views: 2852; Downloads: 771
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326. Record of a new location for tropical root knot nematode Meloidogyne luci in SloveniaBarbara Gerič Stare, Polona Strajnar, Saša Širca, Nik Susič, Gregor Urek, original scientific article Abstract: The plant parasitic nematode Meloidogyne ethiopica Whitehead has been reported from several European countries, including Slovenia, where it was first found in 2003. However, the description in 2014 of a new sister species, Meloidogyne luci Carneiro et al., 2014, called for the reclassification of all European and Turkish populations of M. ethiopica reported up to this date as M. luci. Both species M. ethiopica and M. luci have a very wide host range of
monocotyledons and dicotyledons. They are pests of important agricultural crops such as maize, potatoes and variety of vegetables, and represent a serious threat for agricultural production in greenhouses as well as in the open fields in many EPPO countries. This paper reports a new location of the tropical root knot nematode species M. luci found in Slovenia in 2015.
Keywords: parasitic nematode, root knot nematode, classification, populations
Published in DiRROS: 20.07.2018; Views: 2813; Downloads: 1220
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327. Discrimination between abiotic and biotic drought stress in tomatoes using hyperspectral imagingNik Susič, Uroš Žibrat, Saša Širca, Polona Strajnar, Jaka Razinger, Matej Knapič, Andrej Vončina, Gregor Urek, Barbara Gerič Stare, original scientific article Abstract: Crop plants are subjected to various biotic and abiotic stresses. Both root-knot nematodes (biotic stress) and water deficiency (abiotic stress) lead to similar drought symptoms in the plant canopy. In this work, hyperspectral imaging was used for early detection of nematode infestation and water deficiency (drought) stress in tomato plants. Hyperspectral data in the range from 400 to 2500 nm of plants subjected to different watering regimes and nematode infestation levels were analysed by partial least squares – discriminant analysis (PLS-DA) and partial least squares – support vector machine (PLS-SVM) classification. PLS-SVM classification achieved up to 100% accuracy differentiating between well-watered and water-deficient plants, and between 90 and 100% when identifying nematode-infested plants. Grouping the data according to the time of imaging increased the accuracy of classification. Shortwave infrared spectral regions associated with the OH and CH stretches were most relevant for the identification of nematode infested plants and severity of infestation. This study demonstrates the capability of hyperspectral imaging to identify and discriminate between biotic and abiotic plant stresses.
Keywords: nematode, Hyperspectral imaging, Drought stress, Root-knot nematode, Tomato
Published in DiRROS: 20.07.2018; Views: 3907; Downloads: 2421
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328. Genetic diversity of core vs. peripheral Norway spruce native populations at a local scale in SloveniaMarjana Westergren, Gregor Božič, Hojka Kraigher, original scientific article Abstract: We investigated the levels of genetic diversity and population differentiation among core and peripheral populations of Norway spruce along an altitudinal gradient (from inversions to upper tree line) using isoenzymes (ISO) and nuclear simple-sequence repeats (SSR) markers on overlapping set of populations. Twenty-seven to seventy trees from 11 and 7 populations were genotyped with isoenzymes and SSRs, respectively. The results partially conform to the expectations of the central-peripheral hypothesis (CPH) and are consistent for both marker sets. Genetic differentiation among peripheral populations was low but significantly different from zero (FST-ISO = 0.013, FST-SSR = 0.009) and higher than that among core populations (FST-ISO = 0.007, FST-SSR = 0.005), conforming to central peripheral hypothesis. Contrastingly, levels of genetic diversity assessed by both richness and equitability measures did not significantly differ between peripheral and core populations (AR-ISO = 2.20 vs. 2.14, AR-SSR = 17.16 vs. 17.68, HE-ISO = 0.183 vs. 0.185, and HE-SSR = 0.935 vs. 0.935 for peripheral and core populations, respectively).
Keywords: central peripheral hypothesis, Picea abies (L.) Karst., genetic diversity, genetic differentiation, upper tree line, inversion
Published in DiRROS: 07.05.2018; Views: 8080; Downloads: 1779
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329. Gozd v Valvasorjevi Slavi vojvodine kranjskeŠpela Hrast, Gregor Torkar, 2017, original scientific article Abstract: Z gozdom povezujemo veliko število vlog in funkcij, ki se lahko s časom in prostorom spreminjajo ter tako nosijo pomembne informacije o dojemanju in odnosu do gozda tako posameznika kot družbe. Analizirali smo Valvasorjevo prepoznavanje vlog in funkcij gozda preko vsebinske analize Slave vojvodine Kranjske. Ugotovili smo, da lahko v njej prepoznamo enajst od sedemnajstih različnih funkcij gozda, kar priča o avtorjevem širokem dojemanju gozdov. Valvasorju lahko pripišemo tudi dobro prepoznavanje vrstne pestrosti gozdov Kranjske. Prepoznamo lahko 25 različnih lesnatih rastlin, pri čemer so najpogosteje omenjeni predstavniki rodov bukve, smreke, hrasta, kostanja in jelke. Omenja tudi 78 različnih gozdnih vrst ali skupin živali. Pri tem nevretenčarjem pripisuje manjšo pomembnost kot vretenčarjem. Vendar mu niso enako pomembni vsi vretenčarji, ampak predvsem predstavniki ptic in sesalcev, ki jih povezuje z lovom ali lepim petjem.
Keywords: ekosistemske storitve, vrstna pestrost, funkcije gozdov, vloge gozdov, Slava vojvodine Kranjske
Published in DiRROS: 25.10.2017; Views: 5608; Downloads: 2989
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330. RivLaBob : Odnos človek - bober v obvodni krajini na porečju KrkeMiha Robar, Gregor Senegačnik, Lea Hrastovšek, Luka Jernejčič, Blaž Rekanje, Klavdija Zupančič, Klemen Juršič, Miha Ogorelec, Rudi Kraševec, Rok Medved, Urša Fležar, Marija Černe, Milan Kobal, 2017, popular article Keywords: bober, projekti, porečje reke Krke
Published in DiRROS: 03.09.2017; Views: 3766; Downloads: 724
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