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23. Hypogeous fungi diversity and ecology in SE EuropeTine Grebenc, María P. Martín, Marcelo Aloisio Sulzbacher, Mitko Karadelev, Niccolo G. M. Benucci, Dalibor Ballian, Tomislav Lukić, Jelena Lazarević, Hojka Kraigher, 2015, published scientific conference contribution abstract Published in DiRROS: 03.11.2021; Views: 798; Downloads: 261
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26. Global homogenization of the structure and function in the soil microbiome of urban greenspacesManuel Delgado-Baquerizo, David J. Eldridge, Yu-Rong Liu, Blessing Sokoya, Jun-Tao Wang, Hang-Wei Hu, Ji-Zheng He, Felipe Bastida, José L. Moreno, Adebola R. Bamigboye, Tine Grebenc, Tina Unuk Nahberger, 2021, original scientific article Abstract: The structure and function of the soil microbiome of urban greenspaces remain largely undetermined. We conducted a global field survey in urban greenspaces and neighboring natural ecosystems across 56 cities from six continents, and found that urban soils are important hotspots for soil bacterial, protist and functional gene diversity, but support highly homogenized microbial communities worldwide. Urban greenspaces had a greater proportion of fast-growing bacteria, algae, amoebae, and fungal pathogens, but a lower proportion of ectomycorrhizal fungi than natural ecosystems. These urban ecosystems also showed higher proportions of genes associated with human pathogens, greenhouse gas emissions, faster nutrient cycling, and more intense abiotic stress than natural environments. City affluence, management practices, and climate were fundamental drivers of urban soil communities. Our work paves the way toward a more comprehensive global-scale perspective on urban greenspaces, which is integral to managing the health of these ecosystems and the well-being of human populations.
Keywords: soil biodiversity, structural diversity, functional diversity, urban soils
Published in DiRROS: 15.07.2021; Views: 1027; Downloads: 865
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27. Effect of earthworms on mycorrhization, root morphology and biomass of silver fir seedlings inoculated with black summer truffle (Tuber aestivum Vittad.)Tina Unuk Nahberger, Niccolo G. M. Benucci, Tine Grebenc, Hojka Kraigher, 2021, original scientific article Abstract: Species of the genus Tuber have gained a lot of attention in recent decades due to their aromatic hypogenous fruitbodies, which can bring high prices on the market. The tendency in truffle production is to infect oak, hazel, beech, etc. in greenhouse conditions. We aimed to show whether silver fir (Abies alba Mill.) can be an appropriate host partner for commercial mycorrhization with truffles, and how earthworms in the inoculation substrate would affect the mycorrhization dynamics. Silver fir seedlings inoculated with Tuber. aestivum were analyzed for root system parameters and mycorrhization, how earthworms affect the bare root system, and if mycorrhization parameters change when earthworms are added to the inoculation substrate. Seedlings were analyzed 6 and 12 months after spore inoculation. Mycorrhization with or without earthworms revealed contrasting effects on fine root biomass and morphology of silver fir seedlings. Only a few of the assessed fine root parameters showed statistically significant response, namely higher fine root biomass and fine root tip density in inoculated seedlings without earthworms 6 months after inoculation, lower fine root tip density when earthworms were added, the specific root tip density increased in inoculated seedlings without earthworms 12 months after inoculation, and general negative effect of earthworm on branching density. Silver fir was confirmed as a suitable host partner for commercial mycorrhization with truffles, with 6% and 35% mycorrhization 6 months after inoculation and between 36% and 55% mycorrhization 12 months after inoculation. The effect of earthworms on mycorrhization of silver fir with Tuber aestivum was positive only after 6 months of mycorrhization, while this effect disappeared and turned insignificantly negative after 12 months due to the secondary effect of grazing on ectomycorrhizal root tips.
Keywords: mycorrhiza, truffles, silver fir, inoculation, earthworms, spore inoculation
Published in DiRROS: 22.03.2021; Views: 1090; Downloads: 752
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28. Protokol za določanje kvalitete sadik gozdnega drevja : Naloga JGS 3/2.4 "Analize kvalitete sadik in koreninskega sistema" : standardni operativni postopekPeter Železnik, Natalija Dovč, Tine Grebenc, Gregor Božič, 2021, treatise, preliminary study, study Keywords: tehnična navodila, laboratorij, programska oprema, standardni operativni postopek, laboratorijska oprema, določenje kvalitete, kvaliteta sadik, koreninski sistem
Published in DiRROS: 04.02.2021; Views: 1422; Downloads: 512
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29. First report of European truffle ectomycorrhiza in the semi%arid climate of Saudi ArabiaSeema R. Bajaj, Sandesh J. Marathe, Tine Grebenc, Alessandra Zambonelli, Salem Shamekh, 2021, original scientific article Abstract: Tuber melanosporum Vittad. (Black or Périgord truffle) is a truffle native to the Mediterranean Southern Europe, popular for its unique flavor, and has great economic importance. The present work focused on assessing the possibility of cultivating T. melanosporum associated with Quercus robur L. in the desert climate of Saudi Arabia. The plantation was initiated in November 2018 by planting 271 oak seedlings in the Al-Qassim desert area and checked for survival and ectomycorrhiza development after 1.5 years of plantation maintenance. Amongst the 271 seedlings planted, 243 plants survived two harsh seasons (2019 and 2020), and the randomly selected and tested seedlings were still mycorrhized with T. melanosporum. The mycorrhization level with T. melanosporum was between 5 and 35% of all fine roots, and the share of contaminant ectomycorrhiza was low. In comparison to other areas where T. melanosporum is successfully cultivated, the Al-Qassim desert area has 10%15 °C higher average summer temperatures and a low total annual precipitation, which necessitates regular irrigation of the plantation. This work opens the avenue for an adapted, yet sustainable cultivation of T. melanosporum-inoculated oak tree in a desert climatic condition and introduces new opportunities of the agro-forest business in Saudi Arabia and GCC region.
Keywords: Tuber melanosporum, Quercus robur, Desert climate, Truffle cultivation, Ectomycorrhiza
Published in DiRROS: 26.01.2021; Views: 1136; Downloads: 310
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30. Not every edible orange milkcap is Lactarius deliciosus : first record of Lactarius quieticolor (sect. Deliciosi) from BrazilAlexandre G. S. Silva-Filho, Marcelo Aloisio Sulzbacher, Tine Grebenc, Felipe Wartchow, 2020, original scientific article Keywords: ectomycorrhizal fungi, edible mushroom, Russulaceae, Pinaceae, pine plantation
Published in DiRROS: 14.01.2021; Views: 1087; Downloads: 800
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