Book of Abstracts (PDF) - International Mycological Association

IMC7 Main Congress Theme I: BIODIVERSITY AND CONSERVATION Posters
recorded at single visit (H. reidii, H. marchii, H.
subpapillata, together with some gasteromycetes and rare
Clavariaceae. LPA Horná Orava - wet meadows and
peatbogs with species as H. calyptraeformis, H.
substrangulata, H. coccineocrenata, H. turunda a.o.
National Park (NP) Slovenský Raj - seminatural grasslands
of European importance with very high biodiversity.
Mycological research has just started, but species as H.
nitrata, H. marchii, H. perzistens and H. substrangulata
were recorded.
528 - Building of the central database of biological
collections in the museums of the Slovak Republic
I. Kautmanova * , J. Uhlirova & J. Kautman
Slovak National Museum - Nature Historical Museum,
Vajanského nábr.2, 821 05 Bratislava, Slovakia. - E-mail:
botanika@snm.sk
In 2001 the project of building national database of
biological collections, in which 31 Slovak museum take
part, has started. Guarantee is the Nature Historical
Museum (NHM) of the Slovak National Museum and the
project is aimed to the identification and documentation of
chosen components of the Slovak flora and fauna, with the
accent on the rare and endangered species. At present the
structure of database program is prepared and in 2003 first
data will be filled in. Central node of the database will be at
the NHM and in 2005 first outputs will be presented on the
web. Herbary collections preserved in 25 museums contain
721 405 specimens. Fungi (including lichens) are 157 936
specimens. Main mycological collections are at: Slovak
National Museum-Nature Historical Museum, Bratislava
(BRA) - 146 877, Museum of the Tatra National Park
(TNP) - 5 348, Forestry and Timber Museum, Zvolen - 1
910, Museum Nitra (NIM) - 1139, Central-Slovakian
Museum, Banská Bystrica (SMBB) - 491, Povazie
Museum, Zilina - 463, Orava Museum of P.O.Hviezdoslav,
Dolný Kubín - 415, Slovak Museum of Nature Protection
and Speleology, Liptovský Mikulás (MOP) - 334, Saris
Museum, Bardejov (SMB) - 200 specimens.
529 - Role of mobile introns in diversity of mtDNAs of
imperfect black Aspergilli
F. Kevei * , Á. Juhász & Zs. Hamari
Department of Microbiology, Faculty of Sciences,
Univesity of Szeged, H-6701 SZEGED, P.Ö.Box 533,
Hungary. - E-mail: kevei@bio.u-szeged.hu
A high level of intraspecific mtDNA variability was
reported earlier among black Aspergilli, indicated by
various RFLP profiles of isolates of Aspergillus niger, A.
tubingensis, A. carbonarius and A. japonicus. To study the
reason for the mtDNA polymorphism physical- and
functional maps of mtDNAs representing different
RFLPtypes were constructed than the variable regions
cloned and sequenced. These revealed that apart from
minor nucleotide changes, the presence of introns at
different positions and their appearance in various numbers
in the mtDNAs are responsible for the mitochondrial
genome diversity and size differences. The reasons of
variability between two mtDNA types of A. carbonarius
can be attributed to the presence or absence of a 1.1 kb
group I intron in their cox2 subunit. Sequence comparison
of two mtDNA RFLP types of A. japonicus revealed that
they differed from each other in at least two group I introns
in cox1 subunit and one group I intron in cob gene.
Organisation of four A. niger mtDNA types proved to be
very similar, but one of the three observed variable regions
included a group I intron in the cox1 subunit was present in
three different forms. The mobile introns (bearing ORFs)
play an important role with their homing process
generating recombinant mtDNAs in the interaction among
mitochondrial genomes after mitochondrial transmission.
The homing endonucleases activate a double strand break
that is finally repaired by a repaire mechanism.
530 - Arbuscular mycorrhizal status of plant species
from Western Ghats of Goa, India
S. Khade * & B. Rodrigues
Department of Botany, Goa University, India. - E-mail:
shardakhade@rediffmail.com
Western Ghats are one of the hot spots of biodiversity in
the world and the state of Goa lies in the heart of Western
Ghats. In the present paper, AM fungal status of 62 plant
species, viz. pteridophytes, herbs, shrubs, trees and plants
with under storage ground organs from Western Ghats of
Goa have been discussed. All the plant species selected for
study, exhibited the presence of AM fungal association.
The average root colonization ranged from 30%
(pteridophytes) to 70% (shrubs). Whereas the average
spore density of AM fungi ranged from 52 spores 100 -1 g
soil (pteridophytes) to 528 spores 100 -1 g soil (plants with
under ground storage organs). Species composition of AM
fungi revealed the presence of five genera viz.,
Acaulospora (9), Glomus (19), Gigiaspora (3),
Scutellospora (5) and Sclerocystis (5) with species number
given in parenthesis. A total of 41 species of AM fungi
were recovered during the study. Scutellospora gregaria,
Glomus fasiculatum and Sclerocystis taiwanensis were the
most frequently occurring AM fungal species. The present
paper is first report on AM fungal association in plant
species from Western Ghats of Goa and contributes data
necessary for further studies on AM fungi from this region
of which very little has been explored so far.
531 - Field identification of marne yeasts using DNA
hybridization macroarrays
T. Kiesling, M. Diaz, A. Statzell-Tallman & J.W. Fell *
University of Miami, 4600 Rickenbacker Causeway, Key
Biscayne, Fl, U.S.A. - E-mail: jfell@rsmas.miami.edu
Book of Abstracts 161