Nenad Keča

ORCID: 0000-0003-3899-4525
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Research Areas
  • Mycorrhizal Fungi and Plant Interactions
  • Plant Pathogens and Fungal Diseases
  • Fungal Biology and Applications
  • Yeasts and Rust Fungi Studies
  • Bioenergy crop production and management
  • Plant Pathogens and Resistance
  • Botany and Plant Ecology Studies
  • Forest Insect Ecology and Management
  • Forest Ecology and Biodiversity Studies
  • Forest Management and Policy
  • Agriculture, Plant Science, Crop Management
  • Forest Biomass Utilization and Management
  • Bioeconomy and Sustainability Development
  • Slime Mold and Myxomycetes Research
  • Chemical synthesis and alkaloids
  • Strategic Planning and Analysis
  • Fermentation and Sensory Analysis
  • Global Trade and Competitiveness
  • Nanocomposite Films for Food Packaging
  • Plant and Fungal Interactions Research
  • Bee Products Chemical Analysis
  • Turfgrass Adaptation and Management
  • Law, logistics, and international trade
  • Powdery Mildew Fungal Diseases
  • Botanical Research and Applications

University of Belgrade
2010-2023

University of Belgrade – Faculty of Forestry
2016

University of Montenegro
2015

Croatian Forest Research Institute
2002-2013

Summary An analysis of incidence Phytophthora spp. in 732 European nurseries producing forest transplants, larger specimen trees, landscape plants and ornamentals, plus 2525 areas which trees shrubs were planted, is presented based on work conducted by 38 research groups 23 countries between 1972 2013. Forty‐nine taxa recorded 670 (91.5%); within these nurseries, 1614 1992 nursery stands (81.0%) infested, although most affected appeared healthy. In plantings, 56 recovered from 1667 tested...

10.1111/efp.12239 article EN Forest Pathology 2015-10-30

Abstract The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods pest development. Especially, pathogens from Phytophthora genus profit soil saturation with water. They are alien invasive species, which attack severely damage fine roots. In drought occurring the subsequent year, many oaks die as they encounter problem water uptake. Additionally, insect defoliators followed mildew infections...

10.1515/ffp-2016-0019 article EN Folia Forestalia Polonica 2016-09-01

SUMMARY Net Present Value and Internal Rate of Return were indicators used in the cost analysis commercial poplar plantations Serbia. The study was conducted on four types sites under Populus x euramericana cl. I-214 aged 24–42 years. aim to examine financial results different ages at discount rates. For a rate r = 12%, all tested areas had negative NPV, regardless age site quality. At 6%, shorter production cycles up 28 years better classes positive NPVs (80–580 €ha-1), while 4% investments...

10.1505/146554812800923345 article EN The International Forestry Review 2012-06-01

Armillaria possesses several intriguing characteristics that have inspired wide interest in understanding phylogenetic relationships within and among species of this genus. Nuclear ribosomal DNA sequence-based analyses provide only limited information for studies widely divergent taxa. More recent shown translation elongation factor 1-α (tef1) sequences are highly informative analysis diverse global regions. This study used Neighbor-net coalescence-based Bayesian to examine newly determined...

10.1080/00275514.2017.1286572 article EN Mycologia 2017-01-02

During a survey in three declining and healthy poplar plantations Serbia, six different Phytophthora species were obtained. plurivora was the most common, followed by P. pini, polonica, lacustris, cactorum, gonapodyides. Pathogenicity of all isolated to four-month one-year-old cuttings Populus hybrid clones I-214 Pánnonia, respectively, tested using both soil infestation stem inoculation test. Isolates × cambivora, cryptogea, serendipita from other host plants included as comparison. In...

10.3390/f9060330 article EN Forests 2018-06-06

Summary Armillaria causes problems of root rot, kill trees and decay wood in the forests Serbia Montenegro, but species involved have not hitherto been identified. The aim this study was to identify field isolates collected on 25 localities. Identification based restriction fragment length polymorphism (RFLP) analysis intergenic spacer 1 (IGS1) region comparisons IGS1 sequence with those available NCBI database. Phylogenetic performed information from selected determine possible...

10.1111/j.1439-0329.2006.00434.x article EN Forest Pathology 2006-01-24

SUMMARY In recent decades, gathering and utilization of non-wood forest products (NWFPs) have enjoyed a noticeable increase in the interest both scientific professional organizations, non-governmental institutions private sector Serbia. The Western Balkans rich biodiversity with long history collection use NWFPs an increasing level commercialisation. paper presents analysis commercialization using value chain method. is useful determining importance stakeholders or individuals, such as...

10.1505/146554813807700164 article EN The International Forestry Review 2013-09-01

Summary The occurence of Armillaria species was assessed in Norway, enabling the northern‐most distribution this genus to be determined Europe. Four were found Norway. borealis most common occurring on woody vegetation permafrost zone (ca. 69°N). cepistipes present southern and central but not further than 66°N. solidipes gallica rare, at only one locality each; 59°40′ 59°32′, respectively. 14 hosts, there no significant difference between occurrence A. declining dead trees. Phylogenetic...

10.1111/j.1439-0329.2010.00644.x article EN Forest Pathology 2010-03-05

Aim of study: This study aims to provide basic information about physiological characteristics isolates Lactarius deliciosus (L.) Gray, Russula sanguinaria (Schumach.) Rauschert, Suillus collinitus (Fr) Kuntze, granulatus Rousell, Tricholoma batchii Gulden and imbricatum (Fr.) Kumm.Area The are obtained from Pinus heldreichii H. Christ forest in the south-eastern part Montenegro.Material methods: were molecularly characterised by internal transcribed spacer (ITS) sequencing restriction...

10.5424/fs/2016251-07036 article EN cc-by Forest Systems 2016-04-01

Summary The distribution of Armillaria species was investigated in Serbian forest ecosystems, relation to the main host attacked, forest‐types, geography and altitude. In total, 388 isolates were identified from 36 47 sites. gallica most commonly observed with widest an altitudinal range 70–1450 m, it dominating lowland alluvial forests Quercus Fagus at higher elevations. mellea occurred spp. – dominated north central regions 70–1050 m. Sixty‐eight per cent A. collected living hosts,...

10.1111/j.1439-0329.2008.00578.x article EN Forest Pathology 2009-03-12

The European Fraxinus species are threatened by the alien invasive pathogen Hymenoscyphus fraxineus, which was introduced into Poland in 1990s and has spread throughout continent, causing a large-scale decline of ash. There no effective treatments to protect ash trees against dieback, is caused this pathogen, showing high variations susceptibility at individual level. Earlier studies have shown that application phosphites could improve health treated seedlings after artificial inoculation...

10.3390/f9080442 article EN Forests 2018-07-24

Summary Species of Armillaria were identified from 645 isolates obtained in a nation‐wide survey Albania. The material was collected ca. 250 permanent plots, established for monitoring forest health, and forests orchards attacked by . mellea s.s. occurred on several coniferous broadleaved trees most areas examined, although it absent above 1100–1200 m northern This species damaged Abies Quercus spp. and, to lesser extent, other trees. also commonly recorded causing damage vineyards. gallica...

10.1111/j.1439-0329.2009.00624.x article EN Forest Pathology 2009-10-21

Summary Between 2010 and 2014, symptoms of a shot hole disease were observed on cherry laurel ( Prunus laurocerasus L.) trees shrubs in parks other public plantings Belgrade, Serbia. Ten symptomatic leaves collected from each the diseased plants associated fungus isolated identified using multigene phylogenetic analyses asexual morphological characters. The pathogen was as Neofusicoccum parvum . same produced when inoculated test plants. To best our knowledge, this is first report N. causing P.

10.1111/efp.12300 article EN Forest Pathology 2016-07-05

Seedling mycorrhization acts as an efficient tool for improving the quality of seedlings. In this study, effectiveness Suillus granulatus, originating from Pinus heldreichii forests (Montenegro), to produce containerized ectomycorrhizal seedlings autochthonous nigra in open field conditions was investigated. Spore (106, 107, 108) and vegetative (1:16, 1:8, 1:4) inoculation on formation seedling growth were tested. inoculums Pisolithus arhizus used same trial additional control treatments....

10.5424/fs/2012213-02895 article EN cc-by Forest Systems 2012-11-28

Poplars are fast-growing broadleaved tree species inhabiting river banks and sites with accessible water supplies. Vegetative propagation makes them suitable for establishing highly productive plantations along big rivers in flooded plains. The production of large quantities biomass provides a good substrate various organisms. aim this study was to identify fungal occurring the poplar Serbia determine their frequency role decomposition parts. Fifty belonging divisions Ascomycota,...

10.17221/13/2014-jfs article EN cc-by-nc Journal of Forest Science 2015-04-22

According to many surveys of pathogenic organisms in forest soils, the presence Phytophthora genus is very common both dominant and mixed stands European beech. In Serbia, species were isolated from rhizosphere soil declining, as well apparently healthy stands. After detailed morphological molecular identification, several confirmed. The most pathogen fine roots Serbian beech was plurivora Jung Burgess. This characterized homothallic, semipapillate, produces sporangia various shapes, has an...

10.5281/zenodo.30775 article EN 2012-12-01

Summary Armillaria species have a global distribution and play variable ecological roles, including causing root disease of diverse forest, ornamental horticultural trees. Accurate identification A rmillaria is critical to understand their roles. This work focused on characterizing an unidentified isolate from S erbian forest using pairing, sequencing the partial large subunit intergenic spacer‐1 regions r DNA ( LSU ‐ IGS 1) translation elongation factor‐1 alpha gene tef‐1α ) genes,...

10.1111/efp.12135 article EN Forest Pathology 2014-07-22

Eigenshape analysis and Relative Warp Analysis were employed in the study of shape highly variable sporangia Phytophthora plurivora, a widespread oomycetous pathogen isolated from woody species, several South-East European countries: Bulgaria, Greece, Serbia Romania. The aim was to estimate whether variables permitted quantitative assessment sporangial variability P. plurivora also, discrimination between species based solely on shape, cactorum being selected for comparisons. Both Analyses...

10.15287/afr.2015.411 article EN publisher-specific-oa Annals of Forest Research 2015-06-29

Interaction between Armillaria species and seven other fungi were tested in vitro. Tree antagonistic (Trichoderma viride, Trichotecium roseum Penicillium sp.) four decaying (Hypholoma fasciculare? Hypholoma capnoides, Phlebiopsis gigantea, Pleurotus ostreatus) chosen for this study. The best results noted Trichoderma because fungus was able to kill both mycelia rhizomorphs of species, while spp. inhibited growth colonies rhizomorph production.

10.2298/gsf0900129k article EN cc-by Glasnik Sumarskog fakulteta 2009-01-01

Previous research shows that 5 Armillaria species are identified in forest ecosystems Serbia. This paper presents the Pegler's key of identification based on fruiting bodies - mushrooms. reference data from Serbia refer only to A. mellea. Because insufficient information bioecology individual genus we studied effect temperature, as one most important ecological factors for development mycelium and rhisomorphs.

10.2298/gsf0591149k article EN cc-by Glasnik Sumarskog fakulteta 2005-01-01

Production of poplar plantation is in great part correlation with its health condition. Big areas under the trees same age and almost identical (sort) or (clones) genetical characteristics are ideal environment for occurrence development different diseases. They could easy reach epyphitotic intensity, such conditions start to endanger wood mass production cause big financial loss. Aim paper was present most important diseases worldwide, which reported on species sections: Leuce, Aigeiros...

10.2298/gsf0897007k article EN cc-by Glasnik Sumarskog fakulteta 2008-01-01

The aim of this study was to test the protection clone Populus deltoides cl. S-6-36, with several fungicides, against loss height and diameter increment. idea protect leaf immediately from beginning vegetation growth attack pathogens. By planed treatments, foliage would be protected fungal during first two three months growth, which presumably contribute avoid significant decrease increments. most efficient fungicide two-year research, both in control fungus Marssonina brunnea, Melampsora...

10.2298/gsf0388103k article EN cc-by Glasnik Sumarskog fakulteta 2003-01-01
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