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Chrysophycean stomatocysts associated with the carnivorous plants (genus Utricularia) from Jeleniak-Mikuliny Nature Reserve

Wołowski K., Piątek J., Płachno B. J.

Oceanological and Hydrobiological Studies

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2013

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Vol. 42, No. 4

398--405

EN

An account is given of chrysophycean stomatocysts and algae occurring together with the carnivorous plants known as bladderworts, Utricularia intermedia, U. minor and U. australis, in the peat bog of Jeleniak-Mikuliny Nature Reserve. Eleven chrysophycean stomatocyst morphotypes were found, all reported for the first time from this nature reserve. Among them, two are new records for Europe (stomatocysts 330 and 208) and another two are new for Poland (stomatocysts 112 and 387). Descriptions are provided together with SEM illustrations. General data about cyanobacteria and eukaryotic algae occurring with these stomatocysts are enumerated.

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The epilithon of a cooling tower of the power plant at Bełchatów, Poland

Hindák F., Wołowski K., Hindáková A.

Oceanological and Hydrobiological Studies

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2011

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Vol. 40, No.4

38-43

EN

We studied the diversity of the photosynthetic microscopic epilithon overgrowing the concrete walls of a cooling tower of the power plant at Bełchatów, central Poland. Epilithon samples were collected from the open upper part of concrete walls of a cooling tower in March 2006 and examined in labs as dried material in September 2006, and again in March 2011. The aerophytic assemblages were strongly dominated by a nostocalean cyanobacterium, Scytonema myochrous C. Agardh ex Bornet et Flahault. Other cyanobacteria and algae occurred very sporadically and in low abundance. The trichome morphology of S. myochrous growing directly on the tower differs considerably from that of lab-cultured ones. Trichomes from field material were very long, conspicuously sheathed and dark brown, with relatively sparse ramification and with cylindrical cells and heterocytes. Trichomes cultivated in the laboratory were shorter and thicker, with thin, hyaline sheaths which were not layered; they were frequently ramified, and the cells and heterocytes were discoid. Besides Scytonema myochrous, the first revitalized cyanobacteria growing in laboratory conditions included Nostoc sp., Leptolyngbya gracillima (Zopf ex Hansgirg) Anagnostidis et Komárek, and Gloeothece rupestris (Lyngbye) Bornet in Witrock et Nordstedt.

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Pediastrum privum (Printz) Hegewald (Chlorophyceae) in Lake Małe Zmarłe, northern Poland

Kowalska J., Wołowski K.

Oceanological and Hydrobiological Studies

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2010

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Vol. 39, No.3

137-143

EN

This report on Pediastrum privum (Printz) Hegewald in Lake Małe Zmarłe (Tuchola Forest) is only the second for Poland and the first to describe its morphological variability in a natural population. This study was performed using light microscopy (LM) micrographs, together with data on its ecology.

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Microorganisms in selected sulphuric springs of the Polish Carpathians

Rajchel L., Rajchel J., Wołowski K.

Geological Quarterly

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2002

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Vol. 46, No 2

189-198

EN

Microorganisms colonising sulphurous waters were found at the bottoms of the spring niches and along spring outflows. Five springs from the Carpathians and two from the Carpathian Foredeep were selected for investigations. Sulphurous flora is represented mainly by sulphuric bacteria. They occur as individual threads, spider-webs, festoons, encrustations and covers. Their colours may be white, creamy, violet, pink and purple. Altogether 31 microorganism taxa: bacteria (16), cyanoprokaryota (3) and algae (12) were identified and illustrated. The bacterial occurrences have been correlated with physico-chemical state of the waters.

5

Some Trachelomonas species from street puddles

Tuszyńska L., Wołowski K.

Oceanological Studies

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1998

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Vol. 27, No. 2

69-76

EN

Five taxa: Trachelomoas volvocina, T. volvocina var. subglobosa, T. hispida var. hispida, T. obovata, and T. intermedia fo. papillata. were found in puddles in Warszawa and Ko?obrzeg. From among them T. intermedia fo. papillata was for the first time recorded in Poland; while T. obovata and T. volvocina var. subglobosa are rarely recorded in Poland. All of them are briefly described; and accompanied by SEM photographs.