Book of Abstracts (PDF) - International Mycological Association

IMC7 Main Congress Theme I: BIODIVERSITY AND CONSERVATION Posters
Mycelium mats are patches with a high rate of leaf litter
decomposition and at the same time represent a high
density of hyphae available for soil fungivores. We
investigated the spatial and temporal distribution of
mycelium mats on the soil of a rain forest in Mexico and
whether fine roots and soil arthropods were influenced by
mats. The abundance and size of mats varied seasonally.
There was a low number of mats after the rainy season and
in general they were small. By contrast in the dry and early
rains seasons mats were abundant and on average they
were larger than those found after the rainy season. Also
there was an effect of mats on the distribution of fine roots.
In the dry season the amount of observed roots in non-mat
soil was 4-fold than that observed in mat soil and by early
rains there was more roots in mat soil than in non-mat soil.
Also, mats affected the chemical content of fine roots.
Roots in mat soil had lower concentration of Ca y K over
the year whereas effects on Na concentration varied among
seasons. Soil arthropods were also effected by mycelium
mats. Arthropod diversity was higher in mycelium mat soil
than in non-mycelium mat soil. This study shows that the
guild of mycelium mat forming fungi is an important
component of the tropical rain forest in southern Mexico
beyond its potential species richness. Mats effect the
distribution and chemical content fine roots (plants) and
diversity of soil arthropods two key components of
ecosystem diversity.
512 - A database of Italian keratinophilic fungi
M. Guglielminetti 1* , N. Solari 1 , S. Martellos 2 & G. Del
Frate 1
1 Dep. Ecologia del Territorio e degli Ambienti Terrestri -
Sez. Micologia - Univ. di Pavia, Via S. Epifanio, 14 -
27100 Pavia, Italy. - 2 Dep. Biologia - Univ. di Trieste, Via
l. Giorgieri, 9 - 34127 Trieste, Italy. - E-mail:
mariag@et.unipv.it
The term 'keratinophilic' is used both for fungi capable of
decomposing keratin, including those that cause superficial
mycoses in humans and animals (dermatophyte), and for
fungi only able to use products of keratin's hydrolysis, or
material which naturally associates to it (1). Since the
beginning the 19th century many studies were carried out
in Italy about this group of fungi, isolated from soil,
humans or animals. An on-line database is being created
which could be useful for mycologists, physicians and
veterinaries needing information on keratinophilic fungi
isolated in Italy. This database presently includes 118
infrageneric taxa and will be available on the web before
the end of 2002. A list of Italian papers in which a species
is cited is provided as well. This is the first step towards a
larger nomenclatural database covering all of the Italian
microfungi. Two other databases are being implemented,
which will contain morphological and physiological
information, and will be connected to the first one to
generate a complex information system. This database is
part of larger co-operative effort, involving several other
Italian research centres, the MIUR project 'A network of
databases on the diversity of terrestrial cryptogams in Italy'.
References 1. Kirk, P.M., Cannon, P.F., David, J.C. &
156
Book of Abstracts
Stalpers, J.A., 2001. Ainsworth & Bisby's Dictionary of the
fungi. 9th Edition. CAB International, Wallingford UK.
513 - Biodiversity informatics and the development of
the GLOPP information system
G. Hagedorn * , M. Burhenne, M. Gliech, T. Gräfenhan &
M. Weiss
Federal Biological Research Center for Agriculture and
Forestry, Institute for Plant Virology, Microbiology and
Biological Safety, Königin-Luise-Straße 19, D-14195
Berlin, Germany. - E-mail: g.hagedorn@bba.de
The GLOPP project (Global Information System for the
Biodiversity of Plant Pathogenic Fungi) is creating an
integrated information system on the biodiversity of plant
pathogenic fungi and their hosts by gathering descriptive
and collection data, literature references, resource
information and taxonomic names. The IT project within
GLOPP provides data entry applications and develops the
public access system on the Internet. This task requires the
development of new concepts and information models as
well as substantial efforts in application development. To
simplify analysis and improve collaboration with other
developers, a modular and component based approach has
been choosen. This 'DiversityWorkbench' application suite
ultimately will contain major application components like
DiversityDescriptions (derived from DeltaAccess version
1.7), DiversityReferences (with SpecialIndexing for
organism interactions and distribution),
DiversityCollection, DiversityTaxonomy and
DiversityIdentify as well as support modules like
DiversityUsers, the DiversityGazetteer,
DiversityResources, or DiversityExsiccatae. Developers
interested in collaboration are invited to discuss how the
total development cost and effort can be shared.
514 - Digitization of important European host-pathogen
indices for fungi
G. Hagedorn 1* , G. Deml 1 , W. Brandenburger 2 & M.
Burhenne 1
1 Federal Biological Research Center for Agriculture and
Forestry, Institute for Plant Virology, Microbiology and
Biological Safety, Königin-Luise-Straße 19, D-14195
Berlin, Germany. - 2 @THE DATABASE DID NOT ALLOW
TO LEAVE THIS EMPTY BUT IT SHOULD BE@,
Ostenallee 48, 59063 Hamm, Germany. - E-mail:
g.hagedorn@bba.de
The GLOPP-LIT project focuses on capturing published or
unpublished scientific information on plant pathogenic
fungi. In the framework of the collaborative GLOPP
project (Global Information System for the Biodiversity of
Plant Pathogenic Fungi) the literature project provides a
base layer of information for the identification of plant
pathogenic fungi that is supplemented with more detailed