FUNGI AND LICHENS IN THE BALTICS AND BEYOND XVIII ...

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MYCOLOGY OCCURENCE OF THREE RARE MYXOMYCETE SPECIES IN GREAT CORMORANT COLONY IN LITHUANIA G. ADAMONYTĖ 1 , R. TARAŠKEVIČIUS 2 , D. MATULEVIČIŪTĖ 1 1 Institute of Botany, Nature Research Centre, Žaliųjų Ežerų Str. 49, LT-08406 Vilnius, Lithuania 2 Institute of Geology and Geography, Nature Research Centre, Ševčenkos Str. 13, LT-03223 Vilnius, Lithuania E-mails: grazina.adamonyte@botanika.lt, taraskevicius@geo.lt, dalyte.matuleviciute@botanika.lt Three worldwide rare species – Arcyria leiocarpa, Badhamia apiculospora and Comatricha mirabilis – were recorded on various substrata in a colony of continental subspecies of a great cormorant (Phalacrocorax carbo sinensis) in the western Lithuania, the Curronian Spit. Seven collections of Comatricha mirabilis from litter, 22 collections of Arcyria leiocarpa from Sambucus spp. and Pinus sylvestris bark as well as litter, and 113 collections of Badhamia apiculospora from Quercus robur, Sambucus spp., Pinus sylvestris bark and litter were obtained from moist chamber cultures. These are the first records of all three species for Lithuania. The greatest abundance of these myxomycetes was observed within the most active part of the colony with sporadic records in the oldest colony part and a territory adjacent to the colony (control plots). All species demonstrated their preference to substrates with high pH. Acknowledgements. This research was funded by a grant No LEK-23/2010 from the Research Council of Lithuania. Erysiphales – NEW TENDENCIES OF SYSTEMATICS B. BANKINA, G. BIMSTEINE Institute of Soil and Plant Sciences, Latvia University of Agriculture Liela Street 2, LV 3001 Jelgava, Latvia E-mail: Biruta.Bankina@llu.lv Mildew is a common disease of different wild and cultivated plants. Causal agents of mildew belong to order Erysiphales, division Ascomycota. Life cycle of these fungi include anamorph and teleomorph. Previous systematics of Erysiphales was based on the morphological features of ascocarp appendages and number of ascospores in the ascocarp. Typical ascocarp formed by Erysiphales is chasmothecium, previous term cleistothecium. Chasmothecium is a spherical fruiting body without natural opening. Systematics of powdery mildew causal agents has significantly changed during the last years (Glawe, 2008). Identification of pathogens from Erysiphales now requires morphological characters of teleomorph and anamorph incorporating characteristics of the whole fungus (anamorph plus teleomorph, i.e., the holomorph). New systematic system was supported by DNA sequences, evolutionary lineages within Erysiphales are more clearly reflected in differences in anamorphic states than in teleomorphic features, such as ascocarp appendages. Morphological peculiarities of chasmothecia appendages, number of asci and
production of conidia (a single conidium, true chain or a pseudochain) are the most important factors for identification of causal agent of mildew. New tendencies of systematics have been illustrated by identification of two comparatively new Erysiphales genera in Latvia. Mildew of strawberries was noted first in 2007 in an open field in Latvia, but regular observations were started in 2008 in the Research and Study farm “Vecauce” of the Latvia University of Agriculture (Jarmolica, Bankina, 2009). Causal agent of strawberry mildew belongs to genus Podosphaera according to present systematics (previous name Sphaerotecha). Chasmothecia of Podosphaera contain single ascus, appendages are hyphalike and conidia form true chains. Two species were mentioned (P. aphanis and P. macularis) as causal agents of strawberry mildew, these pathogens do not differ in morphological features, but P. aphanis was described as the most important pathogen in UK and other countries. Since 2006 symptoms of powdery mildew have been detected on rhododendron in Latvia. In the summer of 2009 several collections of rhododendrons have been inspected in different regions of Latvia to identify the pathogen and evaluate the spread of the disease (Bankina et al., in press). Symptoms differed depending on rhododendron variety: white mycelium covered the surface of upper or lower leaves or only purple blotch on the leaves were observed during first stage of infection. Chasmothecia contained several asci, they had more than 20 short, equatorial, hyaline appendages. Branching of appendages was regular, dichotomous. Conidia were ellipsoid-cylindrical, formed singly. The fungus was identified as Erysiphe azaleae (U. Braun) U. Braun & S. Takam according to morphological and anatomical characteristics (previous name Microsphaera azalea). FUNGI COLLECTED IN RIGA FROM THE COLLECTION OF THE NATURAL HISTORY MUSEUM OF LATVIA I. DANIELE, D. MEIERE Natural History Museum of Latvia, K. Barona Str. 4, LV-1050 Riga, Latvia E-mails: inita.daniele@ldm.gov.lv, diana.meiere@ldm.gov.lv Collection of macroscopic fungi of the Natural History Museum of Latvia consists of 6594 units, and 665 specimens belonging to 402 species are from the territory of Riga City. Most of specimens are occasional collections of the specialists of the museum or have been brought to the museum by visitors for the identification. There is variety of different biotopes on the territory of Riga, they include parks, gardens, dunes, pine forests as well as deciduous and mixed forests. Lists of rare for Latvia species are given in the abstract. Rare species on old deciduous trees, dead wood and stumps in gardens and parks of Riga: Aleurodiscus disciforme, Artromyces pyxidatus, Fistulina hepatica, Flammulina velutipes, Grifola frondosa, Hapalopilus croceus, Hericium clathroides, Hypsizygus ulmarius, Pleurotus calyptratus, Pleurotus cornucopiae, Pluteus luteovirens, Pluteus pellitus, Ramicola centunculus, Volvariella bombycina, Xerula radicata. Rare species in park lawns and gardens: Agaricus augustus, Agaricus macrosporus, Agaricus vaporarius, Agaricus xanthoderma, Arrhenia sphathulata, Boletus reticulatus, Calocybe carnea, Clitocybe inornata, Clitopilus scyphoides, Coprinus auricomus, Coprinus radians, Inocybe erubescens, Lepiota oreadiformis, Leucoagaricus holosericus, Leucoagaricus bresadola, Leucocoprinus cepistipes, Lepiota subincarnata, Limacella vinosorubescens, Xerocomus rubellus.
Page 1 and 2: FUNGI AND LICHENS IN THE BALTICS AN
Page 3 and 4: CONTENTS Programme Field trip sites
Page 5 and 6: LICHENOLOGICAL SECTION E. Farkas, L
Page 7: Alternative trip: Šakymas Strict N
Page 11 and 12: Among the collected 81 herbarium sp
Page 13 and 14: different fungal species of the sam
Page 15 and 16: FUNGI IN SOIL BELOW CORMORANT (PHAL
Page 17 and 18: FUNGI ASSOCIATED WITH SEED AND PLAN
Page 19 and 20: North America. Presence of this fun
Page 21 and 22: pathogen of shoots, and was detecte
Page 23 and 24: The frequency more than 10% showed
Page 25 and 26: 1. Disc surface waxy-looking - Belo
Page 27 and 28: ON THE LICHENS OF SVALBARD ARCHIPEL
Page 29 and 30: important because of the recently d
Page 31 and 32: EPIPHYTIC AND EPIXYLIC LICHENS IN G
Page 33 and 34: LICHEN STUDIES ON KARELIAN ISTHMUS
Page 35 and 36: Nordic Lichen Flora vol. 4 - Parmel
Page 37 and 38: LIST OF PARTICIPANTS BELARUS Ann Te
Page 39 and 40: Dmitry E. Himelbrant, Faculty of Bi

FUNGI AND LICHENS IN THE BALTICS AND BEYOND XVIII ...

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