Area documenti

Scientific papers

Di Nezio F, Roman S, Buetti-Dinh A, Sepúlveda Steiner O, Bouffard D, Sengupta A and Storelli N (2023). Motile bacteria leverage bioconvection for eco-physiological benefits in a natural aquatic environment. Front. Microbiol. 14:1253009. doi: 10.3389/fmicb.2023.1253009

Niroshan Gajendra, Jasmine S. Berg, Hendrik Vogel, Longhui Deng, Sarah M. Wolf, Stefano M. Bernasconi, Nathalie Dubois, Carsten J. Schubert, Mark A. Lever; 2023. Carbohydrate compositional trends throughout Holocene sediments of an alpine lake (Lake Cadagno). 

Frontiers in Earth Science, August 2023.

Zander, P. D., Wirth, S. B., Gilli, A., Peduzzi, S., and Grosjean, M.: Hyperspectral imaging sediment core scanning tracks high-resolution Holocene variations in (an)oxygenic phototrophic communities at Lake Cadagno, Swiss Alps, Biogeosciences, 20, 2221–2235,, 2023.

Saini, J.S., Manni, M., Hassler, C. et al. Genomic insights into the coupling of a Chlorella-like microeukaryote and sulfur bacteria in the chemocline of permanently stratified Lake Cadagno. ISME J 17, 903–915 (2023).

Peduzzi S., Peduzzi R., 2022: Formazione interdisciplinare e importanza dei dati scientifici pregressi: esempi dalla Val Piora. Bollettino Società Ticinese Scienze Naturali-110 2022, pp 155-163

Berg JS, Lepine M, Laymand E, Han X, Vogel H,Morlock MA,Gajendra N,  Gilli A, Bernasconi SM,Schubert CJ, Su Gand LeverMA (2022) Ancient and Modern Geochemical Signatures in the 13,500-Year Sedimentary Record of Lake Cadagno. Front.EarthSci.9:754888. doi:10.3389/feart.2021.754888

David J. Janssen, Hendrik Vogel, Jörg Rickli, Olaf Dellwig, Martin Wille, Oscar Sepúlveda Steiner, Jasmine S. Berg, Mark A. Lever, Christel S. Hassler, Damien Bouffard, and Samuel L. Jaccard (2022). Chromium Cycling in Redox-Stratified Basins Challenges δ 53Cr Paleoredox Proxy Applications Geophysical Research Letters 10.1029/2022GL099154

JS. SainiC.HasslerR. Cable  M. FourquezF. DanzaS. RomanM. TonollaN. StorelliS. JacquetE. M. ZdobnovM. B. Duhaime; 2022. Bacterial, Phytoplankton, and Viral Distributions and Their Biogeochemical Contexts in Meromictic Lake Cadagno Offer Insights into the Proterozoic Ocean Microbial Loop. ASM Journals mBio Vol. 13, No. 4 2022

Bartosiewicz M., Venetz J., Läubli S., Sepúlveda Steiner O., Bouffard D., Zopfi J., Lehmann M.J. (2022). Detritus-hosted methanogenesis sustains the methane paradox in an alpine lake. Limnol. Oceanogr. 68, 2023, 248–264

Peduzzi S, Roman S., Tonolla M. & Peduzzi R. (2021). Bilancio limnologico a 14 anni dalla rinuncia della regolazione del livello del lago Cadagno. Bollettino della Società ticinese di scienze naturali -109, pp 139-143

Philippi M., Kitzinger K., Berg J.S. et al. (2021). Purple sulfur bacteria fix N2 via molybdenum-nitrogenase in a low molybdenum Proterozoic ocean analogue. Nat commun 12, 4774

Peduzzi S., Maspoli G., Ferrari S & Peduzzi R. (2021). Rinverdimento spontaneo del delta della Murinascia (lago Ritom) durante l'estate del 2020. Bollettino della Società ticinese di scienze naturali -109, pp 133-137.

Shuka, DonaldAnxhela, RredhiBesimi, GurraBachofen, Reinhard (2021). Photosynthetic activity of the lichen Xanthoria elegans in relation to the daily course of temperature and humidity, a field study in the Piora valley, Ticino, Switzerland. In: Peduzzi, RaffaeleBianconi, Filippo. Scienze alpine, la centralità di piora e del san gottardo. Bellinzona: Edizioni Centro Biologia Alpina di Piora, 73-84.

Francesco Di Nezio, Clarisse Beney, Samuele Roman, Francesco Danza, Antoine Buetti-Dinh, Mauro Tonolla, Nicola Storelli, Anoxygenic photo- and chemo-synthesis of phototrophic sulfur bacteria from an alpine meromictic lakeFEMS Microbiology Ecology, Volume 97, Issue 3, March 2021, fiab010,

Peduzzi R., Borsari A. (2020); Intossicazioni da Veratrum album L. Attualità e storia di due piante da non confondere: genziana e veratro. Bollettino della Società ticinese di scienze naturali - 108, 2020, pp. 115-119 (ISSN 0379-1254).

Rexha K., Bego K., Zyruku D., Shuka L., Husi R., Schneller J., Bachofen R. (2020); Alpine Ecology, plant biodiversity and photosynthetic performance of marker plants in a nitrogen gradient induced by Alnus bushes. BMC Ecol. (2020) 20:23.

Luedin S.M., Storelli N., Danza F., Roman S., Wittwer M., Pothier J.F., Tonolla M. (2019). Mixotrophic Growth Under Micro-Oxic Conditions in the Purple Sulfur Bacterium "Thiodictyion syntrophicum". Frontiers in Microbiology 2019 Mar 5; 10:384

Hunting E.R., Harrison R.G., Bruder A., Van Bodegom P.M., Van der Geest H.G., Kampfraath A.A., Vorenhout M., Admiraal W., Cusell C., Gessner M.O. (2019). Atmospheric Electricity Influencing Biogeochemical Processes in Soils and Sediments. Frontiers in Physiology 2019; 378.

Luedin SM, Liechti N., Cox R.P., Danza F., Frigaard N.U., Posth N.R., Pothier J.F., Roman S, Storelli N., Wittwer M., Tonolla M. (2019). Draft Genome Sequence of Chromatium okenii Isolated from the Stratified Alpine Lake Cadagno. Sci rep. 2019 Feb 13;9(1): 1936.

Danza F, Ravasi D, Storelli N, Roman S, Lüdin S, Bueche M, et al. (2018) Bacterial diversity in the water column of meromictic Lake Cadagno and evidence for seasonal dynamics. PLoS ONE 13(12): e0209743.

Buffa G., Castellano S., Gianotti F., Vescovi E., Tinner W (2018). Scoperta di macrofossili vegetali (4.8-4.7 ka cal BP) al lago Cadagno nell'ambito delle attività dei Naturalisti dell'università di Torino in Val Piora (Canton Ticino, Svizzera). Bollettino della società ticinese di scienze naturali - 106, 2018 123-124.

Berg J.S., Pjevac P., Sommer T., Buckner C.R.T., Hach P.F., Danza F., Liebeke M., Sengupta A., Tonolla M., Schubert C.J., Milucka J., Kuypers M.M.M. (2018). Dark aerobic sulfide oxidation by anoxygenic photoprophs in anoxic water. Environmental Microbiology 2019; Jan 28.

Luedin S.M., Pothier J.F., Danza F., Storelli N., Frigaard N-U., Wittwer M., Tonolla M. (2018). Complete genome sequence of Candidatus "Thiodictyon syntrophicum " sp. nov. strain Cad16T, a photolithoautotrophic purple sulfur bacterium isolated from the alpine meromictic Lake Cadagno. Standards in Genomic Sciences 2018; 13:14.

Danza F., Storelli N., Roman S., Lüdin S., Tonolla M. (2017). Dynamic cellular complexity of anoxygenic phototrophic sulfur bacteria in the chemocline of meromictic Lake Cadagno. PloS ONE

Posth N., Bristow L.A., Cox R.P., Danza F., Tonolla M., Canfield D.E. (2017). Carbon isotope fractionation by anoxygenic pbototrophic bacteria in euxinic Lake Cadagno. Geobiology; 00:1--19.

Sommer T., Danza F., Berg J., Sengupta A., Constantinescu G., Tokyay T., Bürgmann H., Dressler Y. Sepulveda Steiner O.R., Schubert C.J., Tonolla M. Wüest A. (2017). Bacteria-induced mixing in natural waters. Geophysical Research Letters.

Dahl T.W., Wirth S.B. (2017). Molybdenum isotope fractionation and speciation in a euxinic lake-Testing ways to discern isotope fractionation processes in a sulfidic setting. Chemical Geology 460 (2017) 84-92.

R.Dougoud (2016): Rutstroemia alnobetulae sp. nov. (Helotiales, Rutstroemiaceae), une espèce nouvelle des aulnes verts. 7 (6): 336-340.

Berg J.S., Michellod D., Pjevac P., Martinez-Perez C., Buckner C.R., Hach P.F., Schubert C.J., Milucka J., Kuypers M.M. (2016). Intensive cryptic microbial iron cycling in the low iron water column of the meromictic Lake Cadagno. Environ. Microbiol. 2016 Dec;18(12):5288-5302

Bueche M. and Junier P. (2016): Effect of organic carbon and metal accumulation on the bacterial communities in sulphidogenic sediments. Environ. Sci. Pollut. Res. Int. (Epub ahead of print).

Dougoud R., Van Vooren N., Vega M. (2015). Cupulina montana (Pezizales, Pyronemataceae), un nouveau genre et une nouvelle espèce des montagnes d'Europe., 7(2):39-44

Zhori A., Meco M., Brandl H., Bachofen R. (2015). In situ chlorophyll fluorescence kinetics as a tool to quantify effects on photosynthesis in Euphorbia cyparissias by a parasitic infection of the rust fungus Uromyces pisi. BMC Res Notes (2015) 8:698

Milucka J., Kirf M., Lu L., Krupke A., Lam P., Littmann S., Kuypers M.M., Schubert C. (2015): Methane oxidation coupled to oxygenic photosynthesis in anoxic waters. ISME J. 2015 Sep;9(9):1991-2002. doi: 10.1038/ismej.2015.12. Epub 2015 Feb 13.

Zimmermann M., Escrig S., Hübschmann T., Kirf M. K., Brand A., Inglis R. F., Musat N., Müller S., Meibom A., Ackermann M. and Schreiber F. (2015): Phenotypic heterogeneity in metabolic traits among single cells of a rare bacterial species in its natural environment quantified with a combination of flow cell sorting and NanoSIMS. Front. Microbiol. 6: 243. doi: 10.3389/fmicb.2015.00243.

Storelli N., Peduzzi S., Saad M.M., Frigaard N.U., Perret X., Tonolla M. (2013). CO2 assimilation in the chemocline of Lake Cadagno is dominated by a few types of phototrophic purple sulfu bacteria. FEMS Microbiol Ecol. 2013 May; 84(2):421-32.

Wirth S.B., Gilli A., Niemann H., Dahl T.W., Ravasi D., Sax N., Hamanna Y., Peduzzi R., Peduzzi S., Tonolla M., Lehmann M.F., Anselmetti F.S. (2013). Combining sedimentological, trace metal (Mn, Mo) and molecular evidence for reconstructing past water-column redox conditions: the example meromictic Lake Cadagno (Swiss Alps). Geochimica et Cosmochimica Acta, 120, 220-238.

Nieman H. Wirth S.B., Stadnitskaia A., Gilli A., Anselmetti F.S., Sinninghe Damsté J.S., Schouten S., Hoppmans E.C., Lehmann M.F. (2012). Bacterial GDGTs in Holocene sediments and catchment soils of a high-alpine lake: application of the MBT/CBT-paleothermometer. Clim. Past. 8: 889-906.


Peduzzi S., Storelli N., Welsh A., Peduzzi R., Hahn D., Perret X., Tonolla M. (2012). Candidatus "Thiodictyon syntrophicum", sp. nov., a new purple sulfur bacterium isolated from the chemocline of Lake Cadagno forming aggregates and specific associations with Desulfocapsa sp. Syst. Appl. Microbiol. 35: 139-144.

Ravasi D.F., Peduzzi S., Guidi V., Peduzzi R., Wirth S.B., Gilli A., Tonolla M. (2012). Development of a real-time PCR method for the detection of fossil 16S rDNA fragments of phototrophic sulfur bacteria in the sediments of Lake Cadagno. Geobiology 10: 196-204.

Peduzzi S., Welsh A., Demarta A., Decristophoris P., Peduzzi R., Hahn D., Tonolla M. (2011). Thiocystis chemoclinalis sp. nov. and Thiocystis cadagnonensis sp. nov., motile purple sulfur bacteria isolated from the chemocline of a meromictic lake. Internationa Journal of Systematic and Evolutionary Microbiology, 61: 1682-1687.

Niemann H., Wirth S. B., Stadnitskaia A., Gilli A., Anselmetti F. S., Sinninghe Damsté J. S., Schouten S., Hoppmans E. C. and Lehmann M. F. (2011): Validation and application of a novel, terrestrial biomarker-based paleo thermometer to Holocene sediments of Lake Cadagno, Switzerland Geophysical Research Abstracts. Vol. 13, EGU: 2011-1463, 2011 EGU General Assembly 2011.

Habicht K. S., Miller M., Cox R. P., Frigaard N. U., Tonolla M., Peduzzi S., Falkenby L.G. and Andersen J. S. (2011): Comparative proteomics and activity of a green sulfur bacterium through the water column of Lake Cadagno, Switzerland. Environ. Microbiol. 13: 203-15.

Dahl T.W., Anbar A.D., Gordon G.W., Ronsig M.T, Frei R., Canfield D.E. (2010). The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno. Geochimica et Comochimica Acta 74 (1): 144-163.

Canfield D. E., Farquhar J., Aubrey L. and Zerkle A. L. (2010): High isotope fractionations during sulfate reduction in a low-sulfate euxinic ocean analog. Geology. 38: 415-18.

Horath T., Bachofen R. (2009). Molecular Characterization of an Endolithic Microbial Community in Dolomite Rock in the Central Alps (Switzerland). Microb Ecol (2009) 58:290-306

Gregersen L.H., Habicht K.S., Peduzzi S., Tonolla M., Canfield D.E., Miller M., Cox R.P., Frigaard N-U. (2009). Dominance of a clonal green sulfur bacterial population in a stratified Lake. FEMS Microbiol. Ecol. 79: 30-41.

Decristophoris P.M.A., Peduzzi S., Ruggeri-Bernardi N., Hahn D., Tonolla M. (2009). Fine scale analysis of shifs in bacterial community structure in the chemocline of meromictic Lake Cadagno, Switzerland. J.Limnol. 68 (1): 16-24

Halm H., Musat N., Lam P., Langlois R, Musat F., Peduzzi S., Lavik G., Schubert CJ., Singha B., LaRoche J., Kuypers M.M.M. (2009). Co-occurrence of denitrification and nitrogen fixation in a meromictic lake, Lake Cadagno (Switzerland). Environmental Microbiology 11 (8): 1945-1958

Musat N., Halm H., Winteholler B., Hoppe P., Peduzzi S., Hillion F., Horreard F., Amann R., Jorgensen B.B., Kuypers M.M.M. (2008). A single-cell view on the ecophysiology of anaerobic phtotrophic bacteria. PNAS 105 (46): 17861-17866.

Belin G. K. (2008): Investigation of Hopanoid Biomarkers in Lake Sediments by GC-MS and RP-HPLC-APCI-MS. E-Journal of Chemistry. 6: 77-88.

Honeycutt C., Canfield D. and Bjerrum C. (2008): One dimensional physico-chemical ecological modelling of sulfidic oceans: applications to Proterozoic ocean chemistry and euxinic photoic zones. Geophysical Research Abstracts. Vol. 10, EGU: 2008- A-08712, 2008 EGU General Assembly 2008.

Horath T., Neu T. R., Bachofen R. (2006). An endolithic microbial community in dolomite rock in central Switzerland: characterization by reflection spectroscopy, pigment analyses, scanning electron microscopy, and laser scanning microscopy. Microbial Ecology

Bachofen R., Brandl H., Schanz F. (2006). Mikroskopisch klein, aber doch sichtbar! Ein Feldführer für Mikroorganismen. Koprint AG, Alpnach Dorf

Hebting Y., Schaeffer P., Behrens A., Adam P., Schmitt G., Schnekenburger P., Bernasconi S.m., Albrecht P. (2006). Biormarker evidence for a major preservation pathway of sedimentary organic carbon . Science 312 (5780): 1627-1631

Peduzzi R, Demarta A., Peduzzi S., Tonolla M (2006). Ripercussioni biologiche dei cambiamenti climatici sui laghi alpini di alta quota. Rivista Dati 3-2006: 66-69.

Tonolla M., Bottinelli M., Demarta A., Peduzzi R., Hahn D. (2005). Molecular identification of an uncultured bacterium (''morphotype R'') in meromictic Lake Cadagno, Switzerland. FEMS Microbiology Ecology 53: 235-244.

Tonolla M., Peduzzi R., Hahn D. (2005) Long-Term Population Dynamics of Phototrophic Sulfur Bacteria in the Chemocline of Lake Cadagno, Switzerland. Applied Environmental Microbiology 71: 3544-3550.

Egli K., Wiggli M., Fritz M., Klug J., Gerss J., Bachofen R. (2004). Spatial and temporal dynamics of a plume of phototrophic microorganisms in a meromictic alpine laken using turbidity as a measure of cell density. Aquat. Microbiol. Ecol. 35: 105-113.

Tonolla M., Peduzzi S., Demarta A., Peduzzi R., Hahn D. (2004). Phototrophic sulfur and sulfate-reducing bacteria in the chemocline of meromictic Lake Cadagno, Switzerland. J. Limnol. 63(2): 157-166.

Otz M. H., Otz H. K., Siegel D. I. (2003). Surface water/groundwater interaction in the Piora Aquifer, Switzerland: evidence from dye tracing tests. Hydrogeology Journal. 11: 228-239.

Peduzzi S., Tonolla M., Hahn D. (2003). Vertical distribution of sulfate-reducing bacteria in the chemocline of Lake Cadagno, Switzerland, over an annual cycle. Aquat. Microb. Ecol. 30: 295–302.

Peduzzi S., Tonolla M., Hahn D., (2003). Isolation and characterization of aggregate-forming sulfate-reducing and purple sulfur bacteria from the chemocline of meromictic Lake Cadagno, Switzerland. FEMS Microbiology Ecology, 45:29-37

Schramm A., Fuchs B.M., Nielsen J.L., Tonolla M., Stahl D. (2003). Fluorescence in situ hybridization of 16S rRNA gene clones (Clone-FISH) for probe validation and screening of clone libraries. Environ. Microbiol. 4: 713-720.

Siegler V. W., Bachofen R., Zeyer J. (2003). Molecular characterization of endolithic cyanobacteria inhabiting exposed dolomite in central Switzerland. Environmental Microbiology 5: 618-627.

Tonolla M., Peduzzi S., Hahn D., Peduzzi R. (2003). Spatio-temporal distribution of phototrophic sulfur bacteria in the chemocline of meromictic Lake Cadagno (Switzerland). FEMS Microbiology Ecology 43: 89-98.

Glaeser J., Overmann J. (2003). Characterization and in situ carbon metabolism of phototrophic consortia. Applied and Environmental Microbiology 69 (7): 3739-3750

Cereda A., Posse B. (2002). Habitats et reproduction de la Gorgebleue à miroir roux Luscinia svecica svecica au Tessin (Alpes suisses). Réflexions sur le statut de la sous-espèce en Europe moyenne. Nos Oiseaux 49: 215-228.

Gattuso J.P., Peduzzi S., Pizay M.D., Tonolla M. (2002). Changes in freshwater bacterial community composition during measurements of microbial and community respiration. Jour. Plank. Res., 24: 1197-1206.

Schürmann A., Mohn J., Bachofen R. (2002). N2O emissions from snow-covered soils in the Swiss Alps. Tellus 54B: 134-142

Tonolla M., Demarta A., Peduzzi R. (2002). Characterization and in situ detection of Desulfomonile sp. in the anoxic layers of a meromictic alpine lake (lake cadagno). 61st Annual Assempley of Swiss Society for Microbiology, Feb 20/21, Lucern.

Bossard P., Gammeter S., Lehman C., Schanz F., Bachofen R., Gürgi H.-R., Steiner D., Zimmermann U. (2001). Limnological description of the lakes Zürich, Lucerne, and Cadagno. Aquat. Sci. 63: 225-249.

Camacho A., Erez J., Chicote A., Florin M., Squires M. M., Lehmann C., Bachofen R. (2001). Microbial microstratification, inorganic carbon photoassimilation and dark carbon fixation at the chemocline of the meromictic Lake Cadagno (Switzerland) and its relevance to the food web. Aquat. Sci. 63: 91-106.

Casamayor E.O, Muyzer G.,Pedros-Alio C. (2001). Composition and temporal dynamics of planktonic archaeal assemblages from anaerobic sulfurous environments studied by 16S rDNA denaturing gradient gel electrophoresis and sequencing. Aquat. Microb. Ecol. 25: 237-246.

Del Don C., Hanselmann K. W., Peduzzi R., Bachofen R. (2001). The meromictic alpine Lake Cadagno: Orographical and biogechemical description. Aquat. Sci. 63: 70-90.

Bosshard P. P., Stettler R., Bachofen R. (2000b). Seasonal and spatial community dynamics in the meromictic Lake Cadagno. Arch. Microbiol. 174: 168-174.

Bosshard P.P., Santini Y., Grüter D., Stettler R., Bachofen R. (2000a) Bacterial diversity and community composition in the chemocline of in the meromictic Lake Cadagno as revealed by 16S rDNA analysis. FEMS Microbiol. Ecol. 31: 173-182.

Fritz M., Bachofen R. (2000). Volatile organic sulfur compounds in a meromictic alpine lake. Acta hydrochim. Hydrobiol. 28: 185-192.

Lüthy L., Fritz M., Bachofen R. (2000). In situ determination of sulfide turnover rates in a meromictic alpine lake. Appl. Environ. Microbiol. 66: 712-717.

Tonolla M., Demarta A., Peduzzi S., Hahn D., Peduzzi R. (2000). In situ analysis of sulfate-reducing bacteria related to Desulfocapsa thiozymogenes in the chemocline of meromictic Lake Cadagno (Switzerland). Appl. Environ. Microbiol. 66: 820-824.

Stettler R., Bossard P.P., Bachofen R. (2000). Bakterielle Vielfalt. Naturwissenschaftliche Rundschau 53 (5): 217-222

Behrens A., Schaeffer P., Bernasconi S. and Albrecht P. (2000): 7,11-cyclobotryococca-5,12,26-triene, a novel botryococcene-related hydrocarbon occurring in natural environments. Org. Lett. 2: 1271-4.

Lehmann C., Bachofen R. (1999) Images of concentrations of dissolved sulphide in the sediment of a lake and implications for internal sulphur cycling. Sedimentol. 46: 537-545.

Tonolla M., Demarta A., Peduzzi R., Hahn D. (1999). In situ analysis of phototrophic sulfur bacteria in the chemocline of meromictic Lake Cadagno (Switzerland). Appl. Environ. Microbiol. 65: 1325-1330.

Stettler R., Bosshard P., Bachofen R. (1999). Das Ausmass der bakteriellen Vielfat - oder wieviele Bakterien leben in Tessiner Bergseen. Bollettino della Società Ticinese di Scienze Naturali 87 (1-2): 67-69

Bachofen R., Schenk A. (1998). Quorum sensing autoinducers: do they play a role in natural microbial habitats? Microbiol. Res. 153: 61-63.

Bensadoun J.-C., Tonolla M., Demarta A., Barja F., Peduzzi R. (1998). Vertical distribution and microscopic characterization of a non-cultivable micro-organism (morphotype R) of Lake Cadagno. In: Peduzzi, R., Bachofen R. and Tonolla M. (eds) Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 45-51.

Bertoni R., Callieri C., Pugnetti A. (1998). Dinamica del carbonio organico nel Lago di Cadagno e attività microbiche nel mixolimnio. In: Peduzzi, R., Bachofen R. and Tonolla M. (eds) Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 11-17.

Demarta, A., Tonolla M,Caminada A.P., Ruggeri N., Peduzzi R. (1998). Phylogenetic diversity of the bacterial community from the anoxic layer of the meromictic Lake Cadagno. In: Peduzzi, R., R. Bachofen, and. M. Tonolla (eds) 1998. Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 19-30.

Egli K., Wiggli M., Klug J., Bachofen R. (1998). Spatial and temporal dynamics of the cell density in a plume of phototrophic microorganisms in their natural environment. In: Peduzzi R., Bachofen R. and. Tonolla M. (eds) Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 11-17.

Lehmann C., Lühty L., Bachofen R. (1998). Tools for the evaluation of sources and sinks of sulfide in Lake Cadagno. In: Peduzzi, R., R. Bachofen, and. M. Tonolla (eds) 1998. Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 11-17.

Pasini P., Schanz F. (1998). Influence of UV-radiation on the primary production of two high mountain lakes in the Piora Region. In: Peduzzi, R., Bachofen R. and Tonolla M. (eds) Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 65-70.

Peduzzi R., Bachofen R., Tonolla M. (1998). Lake Cadagno: a meromictic alpine lake. Documenta Ist. Ital. Idrobiol. 63.

Peduzzi R., Demarta A., Tonolla M. (1998). The meromictic Lake Cadagno: an overview. In: Peduzzi R., Bachofen R. and. Tonolla M. (eds) Lake Cadagno: a meromictic alpine lake. Documenta Ist. Ital. Idrobiol. 63: 1-4.

Schanz F., Stalder S. (1998). Phytoplankton summer dynamics and sedimentation in the themally stratified Lake Cadagno. In: Peduzzi, R., Bachofen R. and Tonolla M. (eds) Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 71.76.

Schanz F., Fischer-Romero C., Bachofen R. (1998). Photosynthetic production and photoadaptatin of phototrophic sulfur bacteria in Lake Cadagno (Sdwitzerland). Limnol. Oceanogr. 43:1262-1269.

Tonolla M., Demarta A., Peduzzi R. (1998). The chemistry of lake Cadagno. In: Peduzzi R., Bachofen R. and. Tonolla M. (eds). Lake Cadagno: ameromictic alpine lake. Documenta Ist. ital. Idrobiol. 63: 11-17.

Tonolla M., Demarta A., Hahn D., Peduzzi R. (1998). Microscopic and molecular in situ characterization of bacterial populations in the meromictic Lake Cadagno. Doc. Ist. ital. Idrobiol. 63: 31-44.

Birch L., Hanselmann K. W., Bachofen R. (1996). Heavy metal conservation in Lake Cadagno sediments: historical record of anthropogenic emissions in a meromictic alpine lake. Water Res. 30: 679-687.

Fischer C., Wiggli M., Schanz F., Hanselmann K. W., Bachofen R. (1996). Light environment and synthesis of bacterioclorophyll by populations of Chromatium okenii under natural environmental conditions. FEMS Microbiol. Ecol. 21: 1-9.

Glöckner F. O., Amann R. I., Alfreider A., Pernthaler J., Psenner R., Trebesius K., Schleifer K.-H. (1996). An optimized in situ hybridization protocol for planktonic bacteria. System. Appl. Microbiol. 19: 403-406.

Vila X. (1996) Composition and distribution of phototrophic bacterioplancton in the deep communities of several central European lakes: The role of light quality. Arch. Hydrobiol. Spec. Issues Advanc. Limnol. 48: 183-196.

Del Don C., Hanselmann K. W., Peduzzi R., Bachofen R. (1994). Biomass composition and methods for the determination of metabolic reserve polymers in phototrophic sulfur bacteria. Aquat. Sci. 56: 1-15.

Joss A., Mez K., Kanel B., Hanselmann K. W., Bachofen R. (1994). Measurement of fluorescence kinetics of phototrophic bacteria in the natural environment. J. Plant Physiol. 144: 333-338.

Schanz F., Friedl C. (1993). Environmental effects on light utilization by phytoplankton in a meromictic alpine lake. Verh. Int. Verein. Limnol. 25: 621-624.

Bachofen R., Israng R., Del Don C., Hanselmann K.,Tonolla M. (1991). Chemo- and phototactic behavior of phototrophic bacteria under natural conditions in lago di Cadagno a meromictic alpine lake (Abstract). VII Intl. Symp. Phototrop. Prokary. p. 158.

Del Don C., Hanselmann K., Bachofen R. (1991). Metabolic responses of Chromatiaceae to diurnal cycles in a natural lake habitat (Abstract). VII Intl. Symp. Phototrop. Prokary. p. 106.

Stapfer A., (1991).  Pollenanalytische Untersuchungen im Val Piora (Tessin) : ein Beitrag zur Klima- und Vegetationsgeschichte der Nacheiszeit. Geographica Helvetica 1991; 4

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