MONDAY August 16, 2004

I Registration and hanging up posters 11.00–18.00 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

II Welcome picnic 19.00–21.00 in the Botanical Garden of the University of Tartu (Lai Street 38/40, Tartu)

TUESDAY August 17, 2004 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

I Opening 9.00–10.20
9.00–9.10 Piece of music – Artur Kapp (1878–1952) Sonata in f (1897) I Allegro –
performed on organ by T. TRASS
9.10–9.15 Welcome words from the Local Organising Committee
9.15–9.30 Official opening by the Rector of the University of Tartu J. AAVIKSOO
9.30–9.50 Speech of the President of IAL P. L. NIMIS
9.50–10.20 A. DOUGLAS (invited lecture): Symbiosis: cooperation, slavery or domestication?
10.20–10.50 Coffee break

II Discussion Session 1: Translation of phylogenetic analyses into classification 10.50–13.00
CONVENER – Thorsten Lumbsch
10.50–10.55 T. LUMBSCH: Introductory Comments
10.55–11.25 E. PARMASTO: Integrating molecular and morphological data in the systematics of fungi
11.25–11.40 M. WEDIN, H. DÖRING & G. GILENSTAM: Optional lichenization – an overlooked fungal evolutionary strategy, and alternatives for dealing with this in classification and naming
11.40–11.55 A. CRESPO, O. BLANCO, P. K. DIVAKAR & D. L. HAWKSWORTH: Development of a revised generic system for parmelioid lichens based on molecular phylogenetic studies using three molecular data sets (IST and LSU nu rDNA and mt SSU rDNA)
11.55–12.10 R. LÜCKING: From phylogeny to classification: what to do with paraphyletic grades, and is the phylocode a valid alternative?
12.10–12.25 P. DEPRIEST: Linnean nomenclature in a phylogenetic world
12.25–13.00: Discussion on basic rules for the translation of phylogenetic analyses into classification under the current code
13.00–15.00 Lunch

III Opening of poster session 15.00–17.50
15.00–15.10 T. RANDLANE: Introductory Comments
15.10–15.30 S. HEIDMARSSON: Review on posters of Session 1
15.30–15.50 S. TCHABANENKO: Review on posters of Session 2
15.50–16.10 D. FAHSELT: Review on posters of Session 3
16.10–16.30 P.-A. ESSEEN: Review on posters of Session 4
16.30–17.00 Coffee break
17.00–17.20 W. B. SANDERS: Review on posters of Session 5
17.20–17.50 S. LOPPI: Review on posters of Session 6

IV Poster session 1: Systematics and Evolution (authors standing at their posters) 18.00–19.00
POSTER-CHAIRPERSON-– Starri Heidmarsson

WEDNESDAY August 18, 2004 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

I Oral session 1: Systematics and Evolution 9.00–13.00
CONVENER – Mats Wedin
CHAIRPERSON – David L. Hawksworth
9.00–9.05 M. WEDIN: Introductory Comments
9.05–9.20 S. LAGRECA: Chemical variation in the Ramalina siliquosa chemotype complex: revisiting an old question with new methods
9. 20–9.35 J. BUSCHBOM & G. MUELLER: Testing "species pair" concepts: An analysis of processes driving the evolution of Porpidia flavocoerulescens/P. melinodes
9.35–9.50 F. BUNGARTZ & T. H. NASH III: The lichen genus Buellia De Not. in the Greater Sonoran Desert Region: saxicolous species with one-septate ascospores
9.50–10.05 C. PRINTZEN & S. EKMAN: Phylogenetic methods and the delimitation and detection of lichen species
10.05–10.20 F. HÖGNABBA: Molecular phylogeny of the genus Stereocaulon
10.20–10.35 G. KANTVILAS & M. GRUBE: A phylogenetic study of Siphula
10.35–10.40 Questions
10.40–11.10 Coffee break
11.10–11.25 B. STAIGER & M. GRUBE: Molecular phylogeny and character evolution in Graphidaceae (Ostropomycetidae)
11.25–11.40 E. A. DAVYDOV, D. PERSOH & G. RAMBOLD: Phylogenetic analyses of the lichen family Umbilicariaceae based on material from Siberia
11.40–11.55 E. BALOCH & M. GRUBE: Phylogenetic studies in Porinaceae
11.55–12.10 R. DEL PRADO & H. T. LUMBSCH: Phylogeny of pyrenocarpous lichens: implications for the evolution of ascomata
12.10–12.25 E. WIKLUND, H. T. LUMBSCH, S. EKMAN, A. CREWE, A. & M. WEDIN: Phylogenetic relationships of the Lecanoromycetes utilizing combined mtSSU rDNA and nLSU rDNA sequence datasets
12.25–12.40 D. PERSOH: New insights in the phylogenetic relationships of lichenized Pezizomycotina
12.40–12.50 Questions
12.50–13.00 D. L. HAWKSWORTH: Golden thread
13.00–14.00 Lunch

II Poster session 2: Lichen diversity (authors standing at their posters) 14.00–15.00
POSTER-CHAIRPERSON-– Svetlana Tchabanenko

III Oral session 2: Lichen diversity 15.00–19.00
CONVENER – Christoph Scheidegger
CHAIRPERSON – Irwin Brodo
15.00–15.10 I. BRODO: Introductory Comments
Biodiversity Assessment and Biogeography
15.10–15.30 P. L. NIMIS & S. MARTELLOS: Biogeography of lichens in Italy
15.30–15.50 M. A. HERRERA-CAMPOS & M. E. MARTÍNEZ: Analysis of the potential distribution of pendulous species of Usnea in Mexico
15.50–16.10 S. STOFER, C. SCHEIDEGGER, A. BERGAMINI, P. CARVALHO, S. DAVEY, M. DIETRICH, E. FARKAS, U. GRONER, K. KÄRKKÄINEN, C. KELLER, L. LÖKÖS, S. LOMMI, C. MÁGUAS, R. MITCHELL, P. PINHO, V. J. RICO, G. A. RUBIO, A.-M. TRUSCOTT, P. WOLSELEY & A. WATT: Impact of land use intensity on lichen diversity across European biogeographic regions
16.10–16.30 P. WOLSELEY, C. SCHEIDEGGER, S. STOFER, R. MITCHELL, A.-M. TRUSCOTT & A. VANBERGEN: Variation of lichen communities with landuse in Aberdeenshire
16.30–16.50 F. BATIC, D. KASTELEC, R. MAVSAR, H. MAYRHOFER & T. MRAK: Epiphytic lichens as indicators of anthropogenic impact and biodiversity in Slovenian forests
16.50 – 17.10 Coffee break
Infraspecific variation and Phylogeography
17.10–17.30 N. WIRTZ, C. PRINTZEN, B. SCHROETER & H. T. LUMBSCH: Molecular phylogeography of the bipolar lichen Usnea sphacelata and related species
17.30–17.50 H. DÖRING & M. WEDIN: Infraspecific variation within Stereocaulon species complexes – genetic markers, individuals, populations and species
17.50–18.10 C. SCHEIDEGGER, J.-C. WALSER, S. WERTH, J. KALWIJ, D. CSENCSICS, C. CORNEJO, C. KELLER, I. MIKHAILOVA, S. TCHABANENKO, T. PYSTINA & I. JÜRIADO: Regional population differentiation in Lobaria pulmonaria and its implication for conservation strategies
Floristics and Conservation practice
18.10–18.20 S. TCHABANENKO: Lichens of southern part of Sakhalin and Kurile islands
18.20–18.30 A. G. PAUKOV & S. N. TRAPEZNIKOVA: Lithophilous lichens of Middle Urals
18.30–18.40 I. N. URBANAVICHENE: Lichens of the boreal forests of Russia – questions of conservation
18.40–18.50 G. P. URBANAVICHUS: Biogeographical survey of Russian "red book" lichens
18.50–19.00 M. KUKWA: Lichen genus Lepraria in Poland

THURSDAY August 19, 2004 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

I Oral session 3: Genes, Physiology and Structure 9.00–13.00
CONVENER – Peter Crittenden
CHAIRPERSON – Richard Beckett
9.00–9.05 R. BECKETT: Introductory Comments
9.05–9.20 A. ZAVARZIN: How much do we know about morphogenesis and secondary growth of a lichen thallus?
9.20–9.35 W. B. SANDERS: Investigating lichen life cycles on transparent substrates placed in situ
9.35–9.50 P. CRISAFULLI, P. MODENESI, E. PITTAO, E. ROCCOTIELLO & M. TRETIACH: Influence of isidia development on CO2 gas exchanges in the epiphytic lichen Pseudevernia furfuracea (L.) Zopf var. furfuracea
9.50–10.05 M. JENSEN & P. ROSENKRANZ: Imaging of photosynthetic activity of lichens using chlorophyll fluorescence: the water supersaturation effect
10.05–10.20 R. P. BECKETT & F. V. MINIBAYEVA: Extracellular reactive oxygen production and metabolism by lichens
10.20–10.35 K. A. SOLHAUG & Y. GAUSLAA: Testing of ecological roles of secondary lichen compounds
10.35–11.00 Coffee break
11.00–11.15 I. SCHMITT & H. T. LUMBSCH: Diversity and evolution of secondary metabolite encoding genes in the Pertusariaceae
11.15–11.30 F. A. SEYMOUR, P. D. CRITTENDEN, M. J. DICKINSON, M. PAOLETTI, D. MONTIEL & P. S. DYER: Breeding systems in the lichen-forming fungal genus Cladonia
11.30–11.45 R. HONEGGER, U. ZIPPLER & S. SCHERRER: Mating systems and genetic diversity in the genus Xanthoria
11.45–12.00 S. SCHERRER, U. ZIPPLER & R. HONEGGER: Characterisation of the mating-type locus in the genus Xanthoria
12.00–12.15 L. LINDBLOM & S. EKMAN: Population structure and habitat-correlated genetic differentiation in Xanthoria parietina
12.15–12.30 S. WERTH, J. KALWIJ, D. CSENCSICS, C. CORNEJO & C. SCHEIDEGGER: Does disturbance matter? A landscape genetic approach for Lobaria pulmonaria
12.30–12.45 V. REEB, P. HAUGEN, F. LUTZONI & D. BHATTACHARAYA: Phylogeography of homing endonucleases found in Pleopsidium (Acarosporaceae) and its implication for group I intron mobility
12.45–13.00 J. MIADLIKOWSKA, A. E. ARNOLD, V. HOFSTETTER & F. LUTZONI: High diversity of cryptic fungi inhabiting healthy lichen thalli in a temperate and tropical forest
13.00–14.00 Lunch

II Poster session 3: Genes, Physiology and Structure 14.00–15.00 (authors standing at their posters)
POSTER-CHAIRPERSON-– Diane Fahselt

III Discussion session 2: In search of model organisms 15.00–17.50
CONVENER – Rosmarie Honegger
15.00–15.20 E. STOCKER-WÖRGÖTTER, T. FEUERER & J. ELIX: Secondary chemistry, molecular studies and ecophysiology of crustose lichens: culture of selected mycobionts of the genera Haematomma and Rhizocarpon
15.20–15.40 R. HONEGGER: Why do we need model organisms in experimental lichenology?
15.40–16.40 Open discussion: Re-lichenization under sterile conditions
Which systems were so far successful?
– culturing conditions, substrates and media
– reproducibility
– synchronization
– standardization
Search for new model organisms:
– among main groups of lichen-forming fungi? Crustose or microfilamentous species rather than morphologically advanced ones with internal stratification?
– any fungal species which re-lichenizes easily under sterile conditions?
– profiles of potential candidates
Sexual reproduction in the Petri dish:
– which species of lichen-forming fungi did so far complete their sexual reproductive cycle under sterile culturing conditions?
–which external factors induce fruiting body formation in lichen thalli in nature?
Genomic libraries:
– available
– under construction
16.40–17.10 Coffee break
17.10–17.50 Open discussion: Sterile culturing and long-term storage of lichen-forming fungi and their photobionts
– genetic stability of isolates and how to test it
– suitability of isolates for studies on secondary metabolism and relichenization after long periods of sterile culturing
– how do we keep our reference strains? Conventional vs. cryopreservation
– culture collections: where do we deposit our isolates?
Conclusions

IV IAL meeting 18.00–19.30

FRIDAY August 20, 2004 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

I Oral session 4: Lichen Ecology 9.00–13.00
CONVENER – Susan Will-Wolf
CHAIRPERSON – Bruce McCune
9.00–9.25 S. C. SILLETT & M. E. ANTOINE: Epiphytic cyanolichens: ecology, conservation, and directions for future research
9.25–9.45 J. BEVAN, R. ALEXANDER & R. LAZARO SUAU: Soil crust lichens in the El Cautivo badlands, SE Spain
9.45–10.05 H. BÜLTMANN: Lichen strategy-types on non-calcareous soils with a consideration of species richness
10.05–10.25 A. DE LOS RIOS, J. WIERZCHOS, L. G. SANCHO & C. ASCASO: Ecology of endolithic Antarctic lichens
10.25–10.45 P. GIORDANI: The influence of environmental variables on epiphytic lichen diversity in Liguria (NW-Italy)
10.45–11.15 Coffee break
11.15–11.35 M. HAUCK & A. PAUL: Manganese as a site factor for epiphytic lichens
11.35–11.55 H. HEDENÅS: Spatial distribution of epiphytic lichens on aspen, at stand and landscape level
11.55–12.15 G. KANTVILAS & S. J. JARMAN: Impacts on lichens and bryophytes of alternative silvicultural regimes in Tasmania's wet forest: preliminary results
12.15–12.35 L. KIVISTÖ: Epiphytic lichens in a fragmenting boreal forest landscape
12.35–12.55 I. MIKHAILOVA: Populations of epiphytic lichens under stress conditions: survival strategies
12. 55–13.00 B. MCCUNE: Golden thread
13.00–14.00 Lunch

II Poster session 4: Lichen Ecology 14.00–15.00 (authors standing at their posters)
POSTER-CHAIRPERSON-– Per-Anders Esseen

III Oral session 5: Photobionts 15.00–18.00
CONVENER – Thomas Friedl
CHAIRPERSON – Burkhard Büdel
15.00–15.20 R. YAHR, R. VILGALYS & P. T. DEPRIEST: Geographic variation in photobiont specificity points to ecological, not evolutionary, specialization in Cladonia
15.20–15.40 W. B. SANDERS, R. L. MOE & C. ASCASO: Symbiont transformation in the unique phaeolichen formed by Verrucaria tavaresiae and its brown algal phycobiont Petroderma maculiforme
15.40–16.00 G. HELMS & T. FRIEDL: Photobionts of the Physciaceae and the genus Trebouxia
16.00–16.20 H. THÜS, G. HELMS, T. FRIEDL & B. BÜDEL: High diversity of sub-alpine aquatic lichens – is it determined by the submersion resistance of lichen photobionts?
16.20–16.50 Coffee break
16.50–17.10 J. RIKKINEN: tRNALeu (UAA) intron morphotypes among lichen-forming Nostoc strains
17.10–17.30 H. O'BRIEN, J. MIADLIKOWSKA & F. LUTZONI: Patterns of specifity in cyanobacterial lichen symbioses
17.30–17.50 L. MYLLYS, S. STENROOS & M. KUUSINEN: Photobiont specifity of cyanobacteial lichens – evidence from epiphytic communities
17.50–18.00 B. BÜDEL: Golden thread

IV Poster session 5: Photobionts 18.00–18.30 (authors standing at their posters)
POSTER-CHAIRPERSON-– William B. Sanders

V IAL dinner 19.30–23.00 in the White Hall of the Museum of Tartu University History (Lossi Street 25, Tartu)
19.45 Presentation of Acharius Medals, Hale Award and Sharnoff Price
20.15 Buffet dinner

SATURDAY August 21, 2004 at the Vanemuise Concert Hall (Vanemuise Street 6, Tartu)

I Oral session 6: Lichen uses 9.00–13.00
CONVENER – Ole William Purvis
CHAIRPERSON – Mark R. Seaward
9.00–9.20 A. APTROOT: Lichens and global warming: further evidence and the role of Trentepohlia
9.20–9.40 Z. JERAN, R. JACIMOVIC, T. MRAK, F. BATIC, D. KASTELEC, R. MAVSAR & P. KALAN: Epiphytic lichens as biomonitors of atmospheric pollution in Slovenian forests
9.40–10.00 P. ADAMO, C. AGNORELLI, R. BARGAGLI, L. BARUFFO, S. GIORDANO, P. MODENESI, S. ORLANDO, E. PITTAO & M. TRETIACH: Lichen and moss bags as monitoring devices: active or passive uptake of trace metals?
10.00–10.20 W. SAIPUNKAEW, P. WOLSELEY, P. J. CHIMONIDES, & K. BOONPRAGOB: Lichens as monitors of urban pollution in northern Thailand
10.20–10.40 R. S. LARSEN, J. N. B. BELL, P. J. CHIMONIDES, P. W. JAMES, O. W. PURVIS, F. RUMSEY & A. TREMPER: Impact of current atmospheric conditions on epiphytic lichens and bryophytes in London
10.40–11.10 Coffee break
11.10–11.30 L. G. SANCHO, R. DE LA TORRE, G. HORNECK, C. ASCASO, J. WIERZCHOS, A. DE LOS RIOS & A. PINTADO: Lichens in outer space: the BIOPAN experiment
11.30–11.50 R. LÜCKING: Rainforest lichens as models of community formation and indicators of microclimatic zonation and ecological continuity
11.50–12.10 R. ALEXANDER, J. BEVAN & R. LAZARO-SUAU: Mapping and monitoring biological soil crusts in SE Spain
12.10–12.30 J. W. BJERKE: Concentration of secondary substances in arctic-alpine lichens in relation to UV-B radiation and co-occuring variables
12.30–12.50 E. STOCKER-WÖRGÖTTER: Formation and accumulation of pharmaceutically relevant lichen metabolites in mycobiont cultures: are they induced by environmental stress factors?
12.50–13.00 M. SEAWARD: Golden thread
13.00–14.00 Lunch

II Poster session 6: Lichen uses 14.00–15.00 (authors standing at their posters)
POSTER-CHAIRPERSON-– Stefano Loppi

III Discussion session 3: Phylogenetic methods 15.00–17.50
CONVENER – Francois Lutzoni
15.00–15.35 P. O. LEWIS, M. HOLDER & K. E. HOLSINGER: Allowing polytomies in Bayesian phylogenetic analyses, and an introduction to the next generation of collaborative phylogenetics software
15.35–16.10 M. M. MCMAHON: Demonstration of MacClade and Mesquite
16.10–16.40 coffee break
16.40–17.15 C. COX & F. KAUFF: A data management framework for the AFTOL project
17.15–17.50 F. LUTZONI ET AL.: Where are we in assembling the fungal tree of life, classifying the fungi, and understanding the evolution of their subcellular traits?

IV Finish 18.00–19.00
18.00–18.15 Transfer of power from the old IAL Council to the new; speech of the new IAL president
18.15–18.20 Welcoming words from the Organiser of IAL 6
Fairwell

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