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Publications

Monography

  • SFILIGOJ-SMOLE, Majda, HRIBERNIK, Silvo, KUREČIČ, Manja, URBANEK KRAJNC, Andreja, KREŽE, Tatjana, STANA-KLEINSCHEK, Karin. Surface properties of non-conventional cellulose fibres, (Springer briefs in molecular science (Print)), (Springer briefs in molecular science (Internet)), (SpringerBriefs in molecular science. Biobased polymers (Print)), (SpringerBriefs in molecular science. Biobased polymers (Online)). Cham: Springer Nature, cop. 2019. XVII, 88 str. ISBN 978-3-030-10407-8. ISBN 978-3-030-10406-1. https://link.springer.com/book/10.1007%2F978-3-030-10407-8, doi: 10.1007/978-3-030-10407-8_1. [COBISS.SI-ID 22157590]

Different cellulose fibres have been traditionally used for textile and technical applications, however in addition to the traditional cellulosic fibres, fibres isolated from some other non-traditional plants are recently studied for different advanced applications, e.g. cellulose based composites or nanocomposites, etc.

Original science articles

  • URBANEK KRAJNC, Andreja, UGULIN, Tina, PAUŠIČ, Andrej, RABENSTEINER, Johannes, BUKOVAC, Vesna, MIKULIČ PETKOVŠEK, Maja, JANŽEKOVIČ, Franc, BAKONYI, Tamás, BERČIČ, Rebeka Lucijana, FELICIJAN, Mateja (2019). Morphometric and Biochemical Screening of Old Mulberry Trees (Morus alba L.) in the Former Sericulture Region of Slovenia. Acta Societatis Botanicorum Poloniae, 2019, Vol. 1; DOI: 10.5586/asbp.3614; IF 2017: 0.876; 5-year IF 2017: 1.321

Over centuries, in many European countries, the white mulberry trees (Morus alba L.) became an integral part of the cultural landscape, bearing witness to past sericulture activities The distribution records of white mulberry trees in the cultural landscape are incomplete and in general poorly documented. The aim of the presented research was to collect data regarding geographical locations of mulberry trees and to define their morphological and biochemical variability in Goriška region, one of the historically hotspot regions of Slovenia regarding sericulture in the past. Principal component analysis of all morphometrical leaf-traits allowed us to characterise two separate groups of morphotypes. Recordings of the tree pruning management revealed that annual base cutting is traditionally used in Goriška region. Significant correlations between pruning management and leaf morphology traits showed that frequently pruned trees form leaves in generally larger dimensions. From biochemical perspective mulberry leaves are shown to be rich in proteins containing threonine, arginine, asparagine, serine and glutamine as the most prominent free amino acids. The main phenolic compounds were identified as caffeoylquininic acid derivatives, quercetin malonyl-hexoside, rutin, kaempferol acetyl-hexoside, quercetin-3-glucoside and p-coumaric acid derivatives. Pruning management and morphotype show different correlations to the concentrations of the investigated metabolites. Pruning significantly affects the levels of asparagine, alanine, and serine, which were higher in the annually pruned trees independent of morphotype. Furthermore, we were able to confirm a significant effect of pruning on total phenolics as well as rutin, quercetin malonyl-hexoside and quercetin-3-glucoside contents. Multivariate analysis allowed us to determine seven chemotypes with distinctive biochemical traits. The presented results are the basic for defining superior high-yielding genotypes with optimum metabolic composition for both silkworm feeding as well as innovative usage in food processing and pharmaceutical industries.

  • UGULIN, Tina, BAKONYI, Tamas, BERČIČ, Rebeka Lucijana, URBANEK KRAJNC, Andreja. Variations in leaf total protein, phenolic and thiol contents amongst old varieties of mulberry from the Gorizia region. Agricultura, ISSN 1580-8432. [Print ed.], December 2015, vol. 12, no. 1-2, str. 41-47, ilustr., doi: 10.1515/agricultura-2016-0006. [COBISS.SI-ID 4132652]

Preserving the plant genetic resources of genus Morus is insufficient but undoubtedly vital for conservation of the world’s germplasm for our successors. This research was focused on old mulberry varieties from the Gorizia region in Slovenia which were assessed for their contents on crucial metabolites (proteins, phenolics and thiols) in leaves regarding their antioxidant and nutraceutical potentials. Total proteins were measured spectrophotometrically by following the procedure of Bradford, the total phenolic contents were determined using the Folin-Ciocalteu method and thiols were established with monobromobimane fluorescent dye. The presented metabolite screening showed that some of the evaluated genotypes had higher concentrations of glutathione and were superior in contents of proteins and phenolics when compared to the results of other authors and could be propagated as highly recommendable feed for silkworms, and other animals.

Professional articles

  • URBANEK KRAJNC, Andreja. Črno-bela štorija o murvah. Gaia : glasilo kluba Gaia, ISSN 1408-7774, 2016, letn. 22, št. 12, str. 28-29, ilustr. [COBISS.SI-ID 4266284]
  • URBANEK KRAJNC, Andreja, RABENSTEINER, Johannes. Geschichte über Grenzen hinweg Maulbeerbäume als lebende Monumente : der Fast vergessenen Seidenkultur = Zgodba, ki sega čez meje murve – živi spomeniki : skoraj pozabljene kulture gojenja sviloprejk. VII : das Magazin der Sloweninnen und Slowenen in der Steiermark, 2018, 2017/2018, str. 71-81, ilustr. [COBISS.SI-ID 4449836]

Today, mulberries are unknown for many people. When anyone mentions these trees among the rural inhabitants of the former silk regions, they are enthusiastically reminded of childhood when they experienced the taste of mulberry fruits. These often magnificent trees bear sweet white, pink or black fruits, which seem to remind on blackberries and ripen richly early in the summer. Many people, however, do not know much about the origin, traditional uses and the potential of trees that give this popular delicacy from childhood. This topic has been dedicated since 2015 within the research project at the University of Maribor, which revives the former mulberry cultivation and opens new possibilities of their use in sustainable agriculture.

Interviews

  • URBANEK KRAJNC, Andreja (intervjuvanec). Slovenska svilena pot : RTV SLO, oddaja Tednik, 18. 9. 2017 ob 20.00 (cca. 8 min 25 sek). http://4d.rtvslo.si/arhiv/tednik/174491725. [COBISS.SI-ID 4355372]

In the broadcast, which was filmed at the Faculty of Agriculture and Life Sciences and at pilot rearer Janez Škalič, the history of sericulture and the project’s main tasks were presented. The collection of mulberries at the field and in the nursery was presented. The importance of the project in terms of preserving the natural and cultural heritage associated with sericulture was underlined. The history of sericulture was presented and the problems regarding silkworm diseases were addressed. The process of silk rearing was demonstrated. Silk and mulberry products were presented by stressing their multipurpose usage.

  • URBANEK KRAJNC, Andreja (intervjuvanec). Drevo z družinsko simboliko. Večer, ISSN 0350-4972. [Tiskana izd.], 1. 12. 2018, 74, št. 277, ilustr. [COBISS.SI-ID 4509740]
  • URBANEK KRAJNC, Andreja (intervjuvanec). Drevo, pod katerim se ne sedi. Večer v nedeljo, ISSN 2350-5699, 9. december 2018, št. 49, str. 26-27, ilustr. [COBISS.SI-ID 4542764]
  • URBANEK KRAJNC, Andreja (intervjuvanec). Kako do svile? : prispevek v oddaji “Ugriznimo znanost” – izobraževalni program TVS1, 14. junij 2018. [COBISS.SI-ID 4494892]

Bite the Science: How to produce silk?

In the broadcast, which was filmed in the studio and on the field, the history of sericulture and the potential for re-establishment in Slovenia was presented. In the field cast, a collection of mulberries and the importance of conserving mulberry genetic resources was presented. In the laboratory, research on the identification of important metabolites in leaves was presented. Furthermore, the silkworm rearing, the process of unwinding the cocoons and determination of the silk thread quality were demonstrated. We filmed the submissions at the Faculty of Agriculture and Life Sciences, Faculty of Mechanical Engineering (Silk Research) and at pilot rearer in Goričko.

  • URBANEK KRAJNC, Andreja (intervjuvanec), RABENSTEINER, Johannes (intervjuvanec). Murve živi spomeniki : prispevek na Radiu AGORA Divan, 5. 6. 2018, ob 13.00 uri. http://agora.at/Sendungen/AGORA-Divan/Murve-zivi-spomeniki-I-Maulbeerbaeume-als-lebende-Monumente. [COBISS.SI-ID 4496940]

In the magazine of Styrian Slovenes, named VII, we read a story that goes beyond the borders. These are mulberries – living monuments of the almost forgotten culture of silkworm rearing. The authors of the article are biologist Andreja Urbanek Krajnc and Johannes Rabensteiner, that revealed the origin and the traditional use of the trees that give this many popular delicacies from childhood, which to many people today are unknown. About the research project that revives the former mulberry cultivation and opens up new possibilities for use in sustainable agriculture can you hear in the continuation of the interview prepared by Jasmina Godec for the cast of Agora Divan.

  • URBANEK KRAJNC, Andreja (intervjuvanec). Od jajčeca prek gosenic do svilene niti : prispevek v oddaji Prvi na obisku, na prvem programu Radia Slovenija, 8. 11. 2018. https://radioprvi.rtvslo.si/2018/10/prvi-na-obisku-165/. [COBISS.SI-ID 4494636]

The process of silk production, from the cultivation of mulberries, leaf harvesting, egg hatching, silkworm development to cocoon production has been presented. The problems of the systematics and distribution of mulberries in Slovenia (A. Urbanek Krajnc), silkworm diseases and the history of sericulture in Slovenia (Rebeka L. Berčič) have been addressed. Pilot rearer (Janez Škalič) presented the experience of raising silkworms in Goričko.

  • RTV SLO, februar 2018; oddaja Ljudje in zemlja: Predstavitev projekta z naslovom Vpliv hranjenja ličink hibridov sviloprejke (Bombyx mori L.) z listi starih lokalnih madžarskih in slovenskih genotipov murv (Morus alba L.) na razvoj in zdravstveni status ličink.

Lectures

  • SUŠNIK, Polona, URBANEK KRAJNC, Andreja. Murve v Sloveniji in na Madžarskem: dediščina nekdanjega svilogojstva : predavanje v okviru vsakoletnega srečanja Botaničnega društva Slovenije z naslovom Wraberjev dan 2017, Koper, 11. 11. 2017. [COBISS.SI-ID 4376876]
  • RABENSTEINER, Johannes. Über die Maulbeerbäume: Lebende Kulturrelikte in der Landschaft : predavanje na predstavitvi projekta v organizaciji “Naturwissenschaftlicher Verein für Steiermark” in “Institut für Pflanzenwissenschaften “, Graz, 16. 1. 2018. [COBISS.SI-ID 4398892]
  • URBANEK KRAJNC, Andreja. Postopek pridobivanja svilnatih kokonov : predstavitev v sklopu projekta za oživitev vzgoje sviloprejk v Prekmurju, ki je potekala v vrtcu Martjanci in Moravske Toplice, 28. 9. 2017. [COBISS.SI-ID 4365100]
  • URBANEK KRAJNC, Andreja. S svilogojstvom povezana morikultura : predstavitev na “Svilogojskem posvetu”, ki se je odvijal v organizaciji Zavoda Gozvin, Univerze za veterinarsko medicino iz Budimpešte in Fakultete za kmetijstvo in biosistemske vede Univerze v Mariboru, v Prosenjakovcih, 17. marca 2018. [COBISS.SI-ID 4494124]
  • RABENSTEINER, Johannes. Über die Maulbeerbäume: Lebende Kulturrelikte in der Landschaft: predavanje na predstavitvi projekta v organizaciji “Naturwissenschaftlicher Verein für Steiermark” in “Institut für Pflanzenwissenschaften “, Graz, 16. 1. 2018. [COBISS.SI-ID 4398892]
  • URBANEK KRAJNC, Andreja. Razvoj ustreznih tehnologij pridelave, spremljanje metabolitov in analiza možnosti uporabe starih lokalnih genotipov murv v trajnostnem kmetijstvu : predstavitev rezultatov projekta “Po kreativni poti do znanja” na dogodku z naslovom Novim izzivom naproti, Ljubljana, 14. 11. 2017. [COBISS.SI-ID 4377388]

Symposium

  • FELICIJAN, Mateja, SUŠNIK, Polona, UGULIN, Tina, PAUŠIČ, Andrej, RABENSTEINER, Johannes, BAKONYI, Tamás, BERČIČ, Rebeka Lucijana, MIKULIČ PETKOVŠEK, Maja, URBANEK KRAJNC, Andreja. Steps towards revival of moriculture in Slovenia – Biochemical screening of leaves of centuries-old mulberry varieties. V: BAEBLER, Špela (ur.), et al. 7th Slovenian Symposium on Plant Biology with International Participation, Biotechnical Faculty, University of Ljubljana, September 17-18, 2018, Ljubljana, Slovenia. 1st electronic ed. Ljubljana: Silva Slovenica Publishing Centre, Slovenian Foresty Institute. 2018, str. 33. [COBISS.SI-ID 4476460]

Over centuries, in many European countries, including Slovenia, the white mulberry trees (Morus alba L., Moraceae) became an integral part of the cultural landscape. It was brought from Southeastern Asia in 12th century in order to establish a functioning European sericulture; since the leaves are the silk worm´s (Bombyx mori L.) preferred food. The cultivation of mulberries was introduced to Slovenia during the 16th century. It reached its peak in the mid-18th century, known as “The golden century of Slovenian sericulture”. Despite the tradition of hundreds of years, the silk production in Europe decreasing and became irrelevant at the beginning of the 20th century because of the introduction of artificial silk [1-4]. Nevertheless, former sericultural regions retained a number of centuries old mulberry trees, which represent a still living cultural and natural heritage. The aim of the presented research was to collect data regarding geographical locations of historical mulberry trees in Slovenia and to screen the content of proteins and phenolics in leaves. During field excursions to different regions of Slovenia, we recorded exact GPS locations and collected leaf samples of more than 600 trees. The highest density of trees was recorded in submediterranean region, followed by subpannonean region and Southeast Slovenia. Wide variation in biochemical composition of mulberry leaves was observed between analysed genotypes. Mulberry leaves are shown to be rich in proteins (up to 16 g/ 100 g DW) containing threonine, asparagine, methionine, arginine, serine, glutamine, glycine and lysine as the most prominent amino acids. The total phenolic concentrations ranged from 0.7 to 2.3 g/ 100 g DW gallic acid equivalent. The main phenolic compounds were identified as caffeoylquininic acid derivatives, quercetin malonyl-hexoside, rutin, kaempferol acetyl-hexoside, quercetin-3-glucoside and p-coumaric acid derivatives. The statistical evaluation allowed us to present correlations between measured biochemical components with respects to pruning management and geographical distribution. The presented results will be the basic tools to defining superior high-yielding genotypes with optimum metabolic composition for silkworm feeding as well as for innovative usage in food processing and pharmaceutical industries.

  • SUŠNIK, Polona, FELICIJAN, Mateja, PAUŠIČ, Andrej, RABENSTEINER, Johannes, URBANEK KRAJNC, Andreja. Following mulberry (Morus sp.) footprints : Geographical distribution and diversity of leaf morphology of heritage trees in Slovenia. V: Conference book. Graz: Austrian Society of Plant Biology: UNI Graz. 2018, str. 68. [COBISS.SI-ID 4427564]

White mulberry (Morus alba L., Moraceae) was brought to Europe from Southeastern Asia in 12th century and has through the centuries become characteristic tree of former silk-producing regions since the leaves were widely used as silkworm’s feed [1, 2]. Mulberry trees were introduced in Slovenia in the 16th century in the Gorizia region from where it was spread inwards towards Savinja and Mura region. Sericulture had reached its peak in the mid-18th century, known as “golden century” of Gorizian sericulture. However, since then it was in huge decline because of bacterial disease which spread through Europe from France. Until the beginning of the sixties of the 20th century the silk-producing industry was finished because of predomination of Asian silk production. Centuries-old mulberry varieties can still be found in the former silk-producing regions in Slovenia as living cultural and natural heritage of sericulture. Their distribution records are incomplete and in general poorly investigated. [2, 3]

The aim of the presented research was to collect data regarding locations of mulberry plants and to create a distribution map. The highest density of trees was recorded in Coastal-Karst and Gorizia region, followed by Mura region and Southeast Slovenian region. Furthermore, the aim was to define the morphological variability of M. alba, as wide variations in leaf morphology were observed within the species.

Exact locations of mulberries and leaf samples were collected during field excursions in different regions of Slovenia in years 2015-17. For morphometrical analyses 20 to 30 leaves (fifth to seventh leaf from the apex) were harvested from different sun exposed positions of the canopy. Leaves were pressed and dried for herbarium collection. Eight leaf morphometrical parameters were measured, including leaf area, peduncle length, leaf length, leaf width, left and right leaf width from the rachis, the length of the left and right basal vein.

The shape of the leaf is known to vary according to the age of the plant, position within the canopy, pruning, period of growth [4, 5], but there is also a possibility that morphotypes do belong to different taxa. Furthermore, variation of leaf size may also be a result of environmental, in particular abiotic, factors. It is a well-known fact that plants react to water stress and higher temperatures by reducing their leaf area [6]. The annual rainfall and temperatures differ significantly among ecological regions [7,8]. Genotypes from regions with significantly lower rainfall and higher temperatures would thus be expected to have the smallest leaves.

Principal component analysis (PCA) allowed us to establish the best differentiating traits and to define closer morphotypes, to present correlations between measured parameters, with respects to pruning and geographical distribution in Slovenia. The genotypes of Morus alba included in these morphometric analyses are part of a broader genetic analysis, which is ongoing. It will provide additional insight into the variability of the species, and it is expected to confirm the findings of our morphometric analysis.

  • UGULIN, Tina, URBANEK KRAJNC, Andreja, ZELLNIG, Günther, MUELLER, Maria. Morphometric analyses of phytoliths in different mulberry genotypes. V: Conference book. Graz: Austrian Society of Plant Biology: UNI Graz. 2018, str. 72. [COBISS.SI-ID 4427820]

Many plant groups are known to deposit opal silica (SiO2) within and between cells and tissues in solid form creating amorphous structures commonly known as phytoliths or silica bodies. They are essential for growth, mechanical strength rigidity, predator and fungal defense, stiffness and cooling. Plants attacked by herbivores tend to accumulate more silica in their leaves than non-attacked plants, and higher level of silicification is associated with lower herbivory [1]. Phytoliths are of vital importance for the fields of taxonomy, paleoecology, and archeobotany [2], They have a defined anatomical shape and allow distinction among taxonomical groups. Furthermore, they are highly durable under a wide range of depositional conditions. Silica nanoparticles have proven to be important for several biotechnological and biomedical applications such as biosensor design, drug delivery, cell labelling etc. [3]. In last decade, mulberries became model organisms with respect to phytolith formation in cell walls [4,5]. Silica opals in mulberry leaves offer complementary features as they can be used as byproducts in sericulture. The question arises whether morphometric variables associated with size are sufficiently reliable for taxonomical distinction among mulberry taxa, and whether the size increases with ploidy level.

In the present research, phytolith number, size (area, perimeter) and shape (convexity and roundness) among 19 mulberry taxa were analyzed with the respect to idioblast’s size. Microscopical investigations were performed on Olympus microscope (Provis AX 70) equipped with a 100 W mercury arc lamp under UV fluorescence by applying semi-automatic image analysis.

The results showed quantitative and qualitative differences amongst different taxa, which depended on their ploidy level and were significantly correlated with idioblasts’ size. The largest phytolith area was determined in leaves of Morus nigra, a polyploid species with 2n = 22x = 308. Significant differences were also obtained between closely related taxa. We used this preliminary study to explore, which attributes can be used as reliable in taxa evaluation. As the results of this preliminary study showed significant differences, the presented morphometrical traits will be used in further evaluations of the old mulberry varieties, which can be found in the former silk-producing regions.

  • BERČIČ, Rebeka Lucijana, CAPPELLOZZA, Silvia, SAVIANE, Alessio, TETTAMANTI, Gianluca, BODNÁR, Vivien Alexandra, URBANEK KRAJNC, Andreja, BAKONYI, Tamás. Detection of Bombyx mori nucleopolyhedrovirus DNA by loop-mediated isothermal aplification (LAMP) assay. V: Abstracts, 11th International Congress of Veterinary Virology, Montpellier, 2018. Vienna: European Society for Veterinary Virology. 2018, str. 95. [COBISS.SI-ID 4478252]

Graduate and master thesis

  • KOREZ, Julija. Morfološka variabilnost listov starih genotipov murv v Vipavski regiji : diplomsko delo. Maribor: [J. Korez], 2016. VII, 27, [5] f., ilustr. https://dk.um.si/IzpisGradiva.php?id=63643. [COBISS.SI-ID 4231724]

Morphological variation of leaves of old local mulberry genotypes in Vipava region

White mulberry (Morus alba L.) originates from East Asia. To Europe it was introduced in the 16th century. From the second half of the 17th century until the end of II. World War mulberries were planted in Vipava valley for the purpose of sericulture. The aim of presented diploma thesis was to examine differences in the morphometric characteristics of leaves of different mulberry genotypes sampled in the Vipava Valley. We sampled the fifth to seventh leaf from the apex irrespective of the exposition. The leaf area, peduncle length, leaf length, leaf width, the right and the left width from the rachis, the length of the left basal vein and the length of the right basal vein. Pruning affects the size of the leaves and also the expression of heterophylly. Pearson correlation coefficient between pruning and measured parameters indicated a strong correlative relationship. The highest mean values of all measured parameters were analyzed for trees that were trimmed every year and the lowest mean value were determined for trees that remained uncut. Based on the results we can conclude that the pruning affects the size of the leaves as the tree strikes a balance between roots and canopy. By increasing the leaf surface area the tree provides itself a sufficient amount of photoassimilates for growth and development.

  • UGULIN, Tina. Spremenljivost vsebnosti skupnih proteinov, fenolov in tiolov v listih starih genotipov murv v Goriški regiji : magistrsko delo. Maribor: [T. Ugulin], 2016. VII, 24, [24] barvnih f. pril., ilustr. https://dk.um.si/IzpisGradiva.php?id=60241. [COBISS.SI-ID 4165676]

Variations in leaf total protein, phenolic and thiol contents amongst old varieties of mulberry from the Gorizia region.

Preserving the plant genetic resources of genus Morus is insufficient but undoubtedly vital for conservation of the world’s germ plasm for our successors. In the master’s thesis we documented and sampled old mulberry genotypes from Gorizia region, that were used as a silkworm’s feed in the past. Research was focused on old mulberry varieties from the Gorizia region in Slovenia which were assessed for their contents on crucial metabolites (proteins, phenolics and thiols) in leaves regarding their antioxidant and nutraceutical potentials. Total proteins were measured spectrophotometrically by following the procedure of Bradford, the total phenolic contents were determined using the Folin-Ciocalteu method. Thiols were marked with monobromobimane fluorescent dye and determined fluorometrically by HPLC. Total proteins in leaves of different mulberry genotypes ranged from 35 to 126 mg/g dry matter (DM), total phenolics reached 16 g gallic acid equivalent /100 g, glutathione varied from 705 to 2019 nmol/g DM and cysteine from 24 to 73 nmol/g DM. The presented metabolite screening showed that some of the evaluated genotypes had higher concentrations of glutathione and were superior in contents of proteins and phenolics when compared to the results of other authors and could be propagated as highly recommendable feed for silkworms, and other animals.

  • ARNEJČIČ, Ana. Časovna analiza vsebnosti proteinov v listih različnih genotipov murv : diplomsko delo. Maribor: [A. Arnejčič], 2018. VI, 27 f., [3] f. pril., graf. prikazi. https://dk.um.si/IzpisGradiva.php?id=71138. [COBISS.SI-ID 4464172]

Mulberry leaves are the only food of silkworms, which are characterized by extremely important composition of key metabolites that the silkworms need for growth and development. The analysis of nutrients in the leaves of the various mulberry genotypes, which are maintained in the collection of the Faculty of Agriculture and Life Sciences University of Maribor, allows us to collect those superior genotypes, which are best suited for the growth and development of silkworms. The presented diploma research is based on the determination of the protein contents within the leaves of the (1) old high-yielded mulberry varieties used in sericulture, (2) local Hungarian genotypes and (3) new hybrids used for fruit production. The time-course analysis of changes in the protein contents through the vegetation period allowed us to determine the best time to harvest mulberry leaves to obtain optimal yields of beneficial functional components. The total proteins in the leaves were defined in range from 33 to 175 mg/g DM. The highest levels were achieved in leaves of hybrids M. alba x M. rubra. The optimum protein contents of all three studied mulberry groups were measured at the transition from June to July 2017, the lowest protein content at the transition from July to August. Towards the end of vegetation the protein content of mulberry leaves again increased. The time analysis allowed us to define the best time for leave harvesting and helped us in selecting superior genotypes that will be propagated in future to reestablish Slovenian sericulture.

Posters

  • URBANEK KRAJNC, Andreja, RABENSTEINER, Johannes (avtor, prevajalec). Črna murva (Murus nigra L.) = Schwarzer Maulbeerbaum (Morus nigra L.). Maribor; Budimpešta: Fakulteta za kmetijstvo in biosistemske vede UM: Veterinarska univerza, [2018]. 1 plakat. [COBISS.SI-ID 4543020]
  • URBANEK KRAJNC, Andreja, RABENSTEINER, Johannes (avtor, prevajalec). Murve – Živi spomeniki svilogojstva = Mulberries – living monuments of sericultural history. Maribor; Budimpešta: Fakulteta za kmetijstvo in biosistemske vede UM: Veterinarska univerza, [2018]. 1 plakat (118×160). [COBISS.SI-ID 4544300]

Other

  • URBANEK KRAJNC, Andreja, PAUŠIČ, Andrej, RAKUN, Jurij, BUKOVAC, Vesna, URBANEK, Katja. Razvoj ustreznih tehnologij pridelave, spremljanje metabolitov in analiza možnosti uporabe starih lokalnih genotipov murv v trajnostnem kmetijstvu : končno poročilo o doseženih ciljih : javni razpis projektno delo z gospodarstvom in negospodarstvom v lokalnem in regionalnem okolju – Po kreativni poti do znanja 2016/2017. Maribor: Univerza v Mariboru, Fakulteta za kmetijstvo in biosistemske vede, 2017. [17] str., ilustr. [COBISS.SI-ID 4409388]

The project Taking a Creative Path to Knowledge 2016/2017 (Fund staff, MISP, European Social Fund) was supervised by pedagogical mentors from different research fields A. Urbanek Krajnc (botany), Vesna Bukovac (chemistry), Andrej Paušič (botany), Jurij Rakun (computing and informatics), Students of various study programs FALS and the Faculty of Natural Sciences and Mathematics and a working supervisor from a company (Garden Nursery Urbanek, Katja Urbanek) participated in the project.