Articles by Taxonomic Group

Straminipilous organisms and fungus species on dead fragments of 25 taxa of wetland plants from three water bodies were investigated. A total of 219 fungal taxa, including 85 straminipilous organisms and 134 fungus species were recorded. The largest number of straminipilous organisms and fungus species occurred on fragments of Lathyrus palustre and Rorippa amphibia (45 and 44 species respectively), the fewest on Calla palustris (20). The most common species were Chytridium xylophilum (on 23 plants), Pythium rostratum (on 15), Pithomyces obscuriseptatus (on all plants), Trinacrium subtile (on 17) and Titaea (Tetracladium) maxilliformis (on 16). The larger numbers of species were recorded in running water (Jaroszówka Spring, Supraśl River, 124 and 122 respectively), with fewest (106) in stagnant water at Dojlidy Pond. Thirty-one taxa were recorded for the first time from Poland.

The authors investigated aquatic fungi and chromistan organisms growing on the dead specimens of 11 species of free-floating plants in the water from three limnological and trophical different water bodies (spring, river and pond). On the specimens investigated plants in the water of water bodies of north-eastern Poland they identified 129 species including 57 chromistan organisms and 72 fungus species. The most common taxa were Aphanomyces laevis, Thraustotheca clavata, Pythium inflatum, P. rostratum, Anguillospora filiformis, A. pseudolongissima, Angulospora aquatica, Heliscus submersus, Lemonniera aquatica, Pithomyces obscuriseptatus, Tetracladium marchalianum, Tricellula aquatica. Most fungus species were observed on the specimens of Utricularia minor, U. vulgaris (each 36) and Hydrocharis morsus-ranae (34), fewest on Lemna gibba (22), Aldrowanda vesiculosa and Lemna minor (each 23). The most taxa were growing in the water from River Supraśl (64), the fewest in the water from Spring Jaroszówka (55). A number of chromistan organisms and fungus species (2 and 11 respectively) appeared new to Polish waters.

The authors investigated aquatic fungi and chromistan organisms (fungus-like organisms) growing on dead fragments of 7 species of floating-leaved plants (Limnanthemum nymphoides, Nuphar luteum, Nuphar pumilum, Nymphaea alba, Nymphaea candida, Polygonum amphibium f. natans and Potamogeton natans) in the water from three limnological and trophical different water bodies (spring, river and pond). They identified 106 species including 42 chromistan organisms and 64 fungus species, found on the fragments. A number of chromistan organisms and fungus species (Catenomyces persicinus, Nowakowskiella profusa, Polyphagus parasiticus, Rhipidium americanum, Rhipidium interrupta, Rhipidium partenosporum, Sporodina grandis, Endophragmiella latifusiformia, Pseudocercospora manuensis and Saprochaete ramosissima) are recorded as new to Polish waters.