Book of Abstracts (PDF) - International Mycological Association

IMC7 Main Congress Theme I: BIODIVERSITY AND CONSERVATION Posters
was found 30 species from the indigenous rhizosphere of
M. denticulata. The effects of indigenous AM fungi on
growth of M. denticulata were assessed by growing the
plants in pots containing soil (sandy loam and equal
available P as indigenous soil, 3.5 mg/kg) that was set up to
have pH 4.9 by mixing with soluble aluminium. AM
colonization in roots of M. denticulata was highest (87.8%)
in the treatment of no added N and P that was similar to
AM colonization in the natural rhizosphere in wet season
and lowest in the treatment of added N and P 50 mg/kg soil
(51.0%). Spore numbers of AM fungi ranged from 13 to 37
spores/g fresh soil. In treatments with inoculated AM fungi
the growth of M. denticulata was higher than in noninoculated
AM fungi. The highest growth of M. denticulata
was obserbed in inoculated soil with 50 mg/kg soil of N
and no added P (AM colonization, 70.4%).
616 - Lichens on littoral of the White and Barents seas
(Northwest Russia)
A.A. Zavarzin * & D.E. Himelbrant
St.Petersburg State University, Universitetskaya emb., 7/9,
St.Petersburg 199034, Russia. - E-mail:
zavarzin@yahoo.com
Littoral lichen communities composed of species adapted
to both periodic over wetting and high salinity are among
the least studied by lichenologists. Investigations of littoral
lichens along the extensive coastal strip of Russia are
lacking. Lichen diversity of the White (Kandalaksha bay)
and Barents (Dalnie Zelentsy) seas' coasts were studied
during the field trips, supported by Federal Program
Integratsia. Coinciding with data on British coasts three
groups of lichensit were revealed: (1) coastal, (2)
supralittoral, (3) littoral, with the latter being the least
diverse but most specific. The littoral group is restricted to
lower supralittoral and whole littoral zones. Barents coasts
are dominated by lichen communities formed by
Verrucaria mucosa in middle and lower littoral (were it is
competing with red alga Hildenbrantia sp.), substituted by
Verrucaria maura and satellite Verrucaria species in upper
littoral. Both species form clear belts with coverage up to
98%. On the White sea coasts the same species are present,
though with less developed coverage and V. mucosa does
not extend into lower littoral. Additionally filamentous
Lichina confinis is common in midlittoral on granite
outcrops. In contrast with the former sea coast Verrucaria
species here prefer littorals that are not exposed to direct
waving. All littoral lichens are growing on basic rocks, and
only Pyrenocollema sublitorale inhabits calcareous shells
of Semibalanus balanoides.
617 - Mycocoenological studies in beech-woods in
Western Liguria (Italy)
M. Zotti 1* , S. Zappatore 2 & G. Barberis 1
1 DIP.TE.RIS - University of Genoa, Corso Dogali 1M - I-
16136 Genoa, Italy. - 2 DIST - Univeristy of Genoa, Via
Opera Pia 13 - I 16145 Genoa, Italy. - E-mail:
milla@klaatu.com.dist.unige.it
The work presents a study carried out in selected plots of
several beech woods in Western Liguria (Italy) through
five years. The zone investigated were the subject of some
previous researches, devoted to study the mycological
flora. From a phytosociological point of view and despite
the limited diversity of the flora, the woods belong to
Trochiscantho-Fagetum association (Geranio-Fagion
alliance), quite common in Northern and Central
Apennines of Italy. The macrofungi collected and
identified amount to three hundred and fifty seven species.
These species were attributed to the following five
ecological groups: 173 ectomycorrizal fungi, 75
saprotrophic on dead wood, 60 saprotrophic on soil or
humus, 47 saprotrophic in the litter, 2 parasitic on leaving
trees. Gathered data point out that the mycological flora is
rich in species which can be deemed strictly related to the
beech, but they have a rather wide synecological relevance,
occuring in all kinds of beech woods. Finally, some
preliminary results are also reported, exploiting statistical
analysis techniques based on both myco-floristic and
enviromental data.
618 - Filamentous fungi associated with the bivalve
mollusk Corbicula japonica Prime
L.V. Zvereva * & A.M. Vysotskaya
Institute of Marine Biology, Far East Branch, Russian
Academy of Sciences, Palchevskogo Street, 17,
Vladivostok-41, 690041, Russia. - E-mail:
inmarbio@mail.primorye.ru
The bivalve mollusk Corbicula japonica Prime
(Corbiculidae) is a commercially valuable species and has
unique pharmacological (hepatoprotective) properties.
Mollusks were collected in the brackish water Ainskoye
Lake (Sakhalin) on September 25, 2000. Adult individuals
with shells 25 - 35 cm wide were selected. To remove sand
and mud from the internal organs, animals were maintained
for a day in flowing water. Then the mollusks were frozen
and kept in a refrigerator at -18°C until the mycological
investigation. Internal organs of the mollusks - mantle,
muscles, gills, kidneys, digestive glands, male and female
gonads - were prepared for the experimental study. Before
inoculation to the liquid nutrient media, the organs of the
mollusks were kept for two hours in sterilized distillated
water with antibiotics to inhibit the bacterial flora. Several
nutrient media were used: glucoso-yeast extract medium,
Tubaki's medium, and others. We isolated and identified
ten species of the filamentous fungi associated with the
mollusk Corbicula japonica. They are Mortierella
longicollis, M. vinacea, M. sp., Mucor circinelloides,
Gymnoascus sp., Trichoderma aureoviride, T. hamatum,
Penicillium atramentosum, Aspergillus ochraceum, and
Cladosporium sphaerospermum. Growth of the yeast fungi
was observed. Fungi were found in the digestive gland, in
the female gonads, in the male gonads, in the mantle, and
in the kidneys. Fungi were not found in the gills and
muscles.
Book of Abstracts 187