Der Wassergehalt des von den Pflanzen produzierten Nektars kann variieren. Um seine Konservierung in den Waben zu gewährleisten, darf er nicht gären. Deshalb wird er von den Bienen in Honig umgewandelt, indem sie seinen Wassergehalt senken und folglich den Zuckergehalt erhöhen. Dies verhindert die Entwicklung der Mikroorganismen. In der Dunkelheit des Bienenstocks ist es schwierig, den Herstellungsprozess des Honigs zu beobachten. Aus diesem Grund ist er auch nur wenig erforscht. Um die Umwandlung von Nektar in Honig zu untersuchen, haben wir die Technik der Tomographie eingesetzt. Sie ermöglicht es, den Zuckergehalt des eingelagerten Nektars sehr präzise zu messen, ohne den Bienenstock öffnen zu müssen und das Bienenvolk zu stören.
Publikationen Jürg Enkerli
Eckard S., Ansari M. A., Butt T. M., Enkerli J., Grabenweger G.
Biological control of wireworms with entomopathogenic fungi.
IOBC/wprs Bulletin, 90, 2013, 17-20.
Meyling N. V., Pilz C., Keller S., Widmer F., Enkerli J.
Diversity of Beauveria spp. isolates from pollen beetles Meligethes aeneus in Switzerland.
Journal of Invertebrate Pathology, 109, 2012, 76-82.
Inglis G. D., Enkerli J., Goettel M. S.
Laboratory techniques used for entomopathogenic fungi: Hypocreales.
In: Manual of techniques in invertebrate pathology, 2nd edition. New York, Hrsg. L. A. Lacey , Academic Press . 2012, 189-253.
Schneider S., Widmer F., Jacot Ammann K., Kölliker R., Enkerli J.
Spatial distribution of Metarhizium clade 1 in agricultural landscapes with arable land and different semi-natural habitats.
Applied Soil Ecology, 52, 2012, 20-28.
Schneider S., Rehner S. A., Widmer F., Enkerli J.
A PCR-based tool for cultivation-independent detection and quantification of Metarhizium clade 1.
Journal of Invertebrate Pathology, 108, 2011, 106-114.
Pilz C., Enkerli J., Wegensteiner R., Keller S.
Establishment and persistence of the entomopathogenic fungus Metarhizium anisopliae in maize fields.
Journal of Applied Entomology, 135, 2011, 939-403.
Dessimoz M., Michel V., Enkerli J., Widmer F.
Development of molecular diagnostics for characterization of Verticillium infestation in strawberry production systems.
IOBC-WPRS Bulletin, 70, 2011, 75-79.
Ehlers R.-F., Crickmore N., Enkerli J., Glazer I., Kirchmair M., Lopez-Ferber M., Neuhauser S., Strasser H., Tkaczuk C., Traugott M.
Proceedings of the 13th meeting of the IOBC/WPRS working group “Insect Pathogens and Insect Parasitic Nematodes“, Innsbruck, Austria, 19 - 23 June, 2011.
IOBC-WPRS Bulletin, 66, 2011, 1-550.
Schneider S., Jacot-Ammann K., Widmer F., Enkerli J.
Investigation of Metarhizium spp. abundance in different habitat types based on cultivation-independent detection and quantification.
IOBC-WPRS Bulletin, 66, 2011, 125-128.
Steinwender B. M., Enkerli J., Widmer F., Eilenberg J., Meyling N. V.
Molecular diversity of the Metarhizium anisopliae lineage in anagricultural field.
IOBC-WPRS Bulletin, 66, 2011, 113-115.
Vogelgsang S., Enkerli J., Jenny-Ludwig E., Roffler, S. , Widmer F.
Characterization of Fusarium poae microsatellite markers on strains from Switzerland and other countries.
Phytopathology, 159, (3), 2011, 197-200.
Enkerli J., Widmer F.
Molecular ecology of fungal entomopathogens: molecular genetic tools and their applications in population and fate studies.
BioControl, 55, (1), 2010, 17-37.
Schneider S., Hartmann, M., Enkerli J., Widmer F.
Fungal community structure in soils of conventional and organic farming systems.
Fungal Ecology, 3, (3), 2010, 215-224.
Fournier, A., Widmer F., Enkerli J.
Development of a single-nucleotide polymorphism (SNP) assay for genotyping of Pandora neoaphidis.
Fungal Ecology, 114, (5-6), 2010, 498-506.
Fournier, A., Widmer F., Enkerli J.
Assessing winter-survival of Pandora neoaphidis in soil with bioassays and molecular approaches.
Biological Control, 54, (2), 2010, 126-134.
Ehlers R.-U., Crickmore N., Enkerli J., Glazer I., Lopez-Ferber M., Tkaczuk C.
Proceedings of the 12th meeting of the IOBC/WPRS working group “Insect Pathogens and Insect Parasitic Nematodes“, Pamplona, Spain, 22 - 25 June.
IOBC-WPRS Bulletin, 45, 2009, 1-519.
Toepfer, S., Enkerli J., Kuhlmann, U.
Research needs and promising approaches for the biological control of Diabrotica and other emerging soil insect pests with pathogens or nematodes.
IOBC-WPRS Bulletin, 45, 2009, 47-58.
Enkerli J., Schwarzenbach, K. , Widmer F.
Biological control of the European cockchafer: Does Beauveria brongniartii have effects on fungal community structures in soil microcosms? .
IOBC-WPRS Bulletin, 45, 2009, 431-435.
Vogelgsang S., Widmer F., Jenny-Ludwig E., Enkerli J.
Characterisation of novel Fusarium graminearum microsatellite markers in different Fusarium species from various countries.
European Journal of Plant Pathology, 123, (4), 2009, 477-482.
Enkerli J., Ghormade, V., Oulevey, C. , Widmer F.
PCR-RFLP analysis of chitinase genes enables efficient genotyping of Metarhizium anisopliae var. anisopliae.
Journal of Invertebrate Pathology, 102, (2), 2009, 185-188.
