13 research outputs found

    The Germ Similarity in Ontogeny of Ciliates (Ciliophora)

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    The paper deals with the regularities of ontogenesis of mobile and sessile ciliated protozoans. It is shown, that the germ similarity is characteristic both in mobile and sessile ciliates. The mechanisms of controlling of morphogenesis in ciliates are probably homologues with the controllers of early morphogenesis in multicellular organisms. The special statement for the case of law of germ similarity in unicellular eucaryots named "principle of tomits similarity" has been offered.Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ΡΡ особСнности ΠΎΠ½Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ… ΠΈ ΠΏΡ€ΠΈΠΊΡ€Π΅ΠΏΠ»Π΅Π½Π½Ρ‹Ρ… ΠΈΠ½Ρ„ΡƒΠ·ΠΎΡ€ΠΈΠΉ. Показано, Ρ‡Ρ‚ΠΎ Π·Π°Ρ€ΠΎΠ΄Ρ‹ΡˆΠ΅Π²ΠΎΠ΅ сходство проявляСтся ΠΊΠ°ΠΊ Ρƒ ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ…, Ρ‚Π°ΠΊ ΠΈ Ρƒ сидячих Ρ„ΠΎΡ€ΠΌ. ΠœΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΡ‹ рСгуляции ΠΎΠ½Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° Ρƒ ΠΈΠ½Ρ„ΡƒΠ·ΠΎΡ€ΠΈΠΉ ΠΈ Ρ€Π°Π½Π½ΠΈΡ… этапов ΠΌΠΎΡ€Ρ„ΠΎΠ³Π΅Π½Π΅Π·Π° ΠΌΠ½ΠΎΠ³ΠΎΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ…, вСроятно, Π³ΠΎΠΌΠΎΠ»ΠΎΠ³ΠΈΡ‡Π½Ρ‹. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½Π°Ρ Ρ„ΠΎΡ€ΠΌΡƒΠ»ΠΈΡ€ΠΎΠ²ΠΊΠ° Π·Π°ΠΊΠΎΠ½Π° Π·Π°Ρ€ΠΎΠ΄Ρ‹ΡˆΠ΅Π²ΠΎΠ³ΠΎ сходства для ΠΎΠ½Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° ΠΎΠ΄Π½ΠΎΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… эукариот β€” ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏ сходства Ρ‚ΠΎΠΌΠΈΡ‚ΠΎΠ²

    Early developmental dynamics of cell surface glycoconjugates in the rat left ventricle myocardium relate to the tissue stereological data

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    The purpose of study was to reveal the connection between the dynamics of cellular surface glycoconjugates (detectable by binding plant lectins: PNA, LCA, RCA I, UeA, WGA) and stereological parameters (volume densities of cardiac muscle cells, capillaries and connective tissue) in the left ventricle myocardium of rat heart in early ontogenesis. The weak RCA I binding was observed in the membranes of cardiac myocytes of left ventricle throughout 12-20th days of gestation. There was the moderate reaction with RCA I, LCA and WGA on cellular surface of vascular endothelium, pericardial mesothelium and endocardial luminal cells. LCA and WGA staining revealed the uniform pattern for cardiac muscle cells within the left ventricle myocardium. The weak UeA binding in the cardiac muscle cells appeared after 16th day of gestation in the subepicardial layer of myocardium. PNA binding was not uniform during 14-18th days of gestation in cardiac muscle cells. It was corresponded the stereological differences in regions with the high and low receptors density. During this period, the volume densities of cardiomyocytes and capillaries were higher in areas with strong PNA binding (subepicardial and intramural layers). The volume density of connective tissue was high in areas with weak reaction (subendocardial region). The irregularity in PNA staining of cardiac muscle cells in the left ventricle myocardium disappeared to 20th day of gestation together with Π° loss of statistical difference in the volume densities of structural components in layers of myocardium

    Spirochona americana sp. n. (Ciliophora, Chonotrichia) – a New North American Freshwater Chonotrich Species from the Amphipod Gammarus lacustris

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    Spirochona americana Dovgal, sp. n. is described from specimens collected in Pyramid Lake, Alberta, Canada. The chonotrich was found colonizing the gills of the gammarid amphipod Gammarus lacustris. S. americana differs from eight other species of the genus Spirochona in the ratio of cell length to cell width, cell body shape, size and morphology of the peristomal funnel, maximum cell size, and geographical distribution.Описана Spirochona americana Dovgal, sp. n. ΠΏΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌ ΠΈΠ· ΠΎΠ·. ΠŸΠΈΡ€Π°ΠΌΠΈΠ΄Π°, провинция ΠΠ»ΡŒΠ±Π΅Ρ€Ρ‚Π°, Канада. Π˜Π½Ρ„ΡƒΠ·ΠΎΡ€ΠΈΡ Π±Ρ‹Π»Π° ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Π° Π½Π° ΠΆΠ°Π±Ρ€Π°Ρ… Π³Π°ΠΌΠΌΠ°Ρ€ΠΈΠ΄Ρ‹ Gammarus lacustris. ΠžΡ‚ восьми Π΄Ρ€ΡƒΠ³ΠΈΡ… Π²ΠΈΠ΄ΠΎΠ² Ρ€ΠΎΠ΄Π° Spirochona S. americana отличаСтся пропорциями ΠΈ Ρ„ΠΎΡ€ΠΌΠΎΠΉ Ρ‚Π΅Π»Π°, Ρ€Π°Π·ΠΌΠ΅Ρ€ΠΎΠΌ ΠΈ ΠΌΠΎΡ€Ρ„ΠΎΠ»ΠΎΠ³ΠΈΠ΅ΠΉ ΠΏΡ€Π΅Π΄Ρ€ΠΎΡ‚ΠΎΠ²ΠΎΠΉ Π²ΠΎΡ€ΠΎΠ½ΠΊΠΈ, максимальной Π΄Π»ΠΈΠ½ΠΎΠΉ Ρ‚Π΅Π»Π° ΠΈ гСографичСским распространСниСм

    The Variability of Exoskeleton Elements in Polyplacocystis ambigua (Protista, Centrohelida)

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    Article dealt with the investigation of variability of the scales of periplast in Polyplacocystis ambigua (Penard, 1904). New quantative character of periplast scale (wide of rim) was introduced. Renewed diagnosis of P. ambigua where the quantative characteristics of perilpast scales are taken into account is given.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдования измСнчивости Ρ‡Π΅ΡˆΡƒΠ΅ΠΊ пСрипласта Ρ†Π΅Ρ‚Ρ€ΠΎΡ…Π΅Π»ΠΈΠ΄Π½ΠΎΠ³ΠΎ солнСчника Polyplacocystis ambigua (Penard, 1904). ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ Π½ΠΎΠ²Ρ‹ΠΉ количСствСнный ΠΏΡ€ΠΈΠ·Π½Π°ΠΊ β€” ΡˆΠΈΡ€ΠΈΠ½Π° ΠΊΠ°ΠΉΠΌΡ‹ Ρ‡Π΅ΡˆΡƒΠ΅ΠΊ. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½ΠΎ пСрСописаниС Π²ΠΈΠ΄Π°, составлСнноС с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π° измСнчивости структурных элСмСнтов пСрипласта

    Acineta persiensis sp. n. (Ciliophora, Suctorea) β€” a New Freshwater Suctorian Species from the Water Mites of the Genus Protzia (Acari, Hydrachnidia)

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    Acineta persiensis Dovgal et Pesic, sp. n. β€” a new suctorian ciliate species, was described from specimens collected in Guik stream, Khorrasan Province, Iran and in Stream Bistrica near village Crkvine, Montenegro. The suctorian was found colonizing the legs of the hydrachnid mites Protzia sepasgosariani and P. invalvaris. A new species differs from other species of the genus Acineta in the lorica structure, stalk morphology, the ability to hyperphoretic pseudocolonies formation and geographical distribution.Описан Π½ΠΎΠ²Ρ‹ΠΉ Π²ΠΈΠ΄ сукторий, Acineta persiensis Dovgal et Pesic, sp. n., ΠΏΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌ ΠΈΠ· ΠΏΠΎΡ‚ΠΎΠΊΠ° Π”ΠΆΡƒΠΊ, провинция Π₯орасан, Π˜Ρ€Π°Π½ ΠΈ ΠΏΠΎΡ‚ΠΎΠΊΠ° Быстрица Ρƒ Π΄Π΅Ρ€Π΅Π²Π½ΠΈ Π¦Ρ€ΠΊΠ²ΠΈΠ½, ЧСрногория. Π˜Π½Ρ„ΡƒΠ·ΠΎΡ€ΠΈΡ Π±Ρ‹Π»Π° ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Π° Π½Π° Π½ΠΎΠ³Π°Ρ… ΠΊΠ»Π΅Ρ‰Π΅ΠΉ-Π³ΠΈΠ΄Ρ€Π°Ρ…Π½ΠΈΠ΄ Protzia sepasgosariani ΠΈ P. invalvaris. ΠžΡ‚ Π΄Ρ€ΡƒΠ³ΠΈΡ… Π²ΠΈΠ΄ΠΎΠ² Ρ€ΠΎΠ΄Π° Acineta Π½ΠΎΠ²Ρ‹ΠΉ Π²ΠΈΠ΄ отличаСтся строСниСм Ρ€Π°ΠΊΠΎΠ²ΠΈΠ½Ρ‹ ΠΈ ΡΡ‚Π΅Π±Π΅Π»ΡŒΠΊΠ°, ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒΡŽ Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ гипСрфорСтичСскиС псСвдоколонии, Π° Ρ‚Π°ΠΊΠΆΠ΅ гСографичСским распространСниСм

    Ecological Spectrums of Heterotrophic Flagellates (Protista) in Water Bodies of Ukrainian Polissya Area

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    Dependence of 26 heterotrophic flagellate species development in central part of Ukrainian Polissya area from operating pH and concentrations of dissolved organic matter and oxygen in the waters is considered. Narrowing of existence spectrums in certain types of water body characteristic for some species of heterotrophic flagellates is stated; this peculiarity is strongly expressed in the bogs where specific complex of hydrochemical conditions to have a place.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ свСдСния ΠΎ толСрантности Π²ΠΈΠ΄ΠΎΠ² Π³Π΅Ρ‚Π΅Ρ€ΠΎΡ‚Ρ€ΠΎΡ„Π½Ρ‹Ρ… ΠΆΠ³ΡƒΡ‚ΠΈΠΊΠΎΠ²Ρ‹Ρ… Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠΉ части Украинского ПолСсья ΠΊ гидрохимичСским Ρ„Π°ΠΊΡ‚ΠΎΡ€Π°ΠΌ, Ρ‚Π°ΠΊΠΈΠΌ ΠΊΠ°ΠΊ pH, содСрТаниС растворСнных Π² Π²ΠΎΠ΄Π΅ кислорода ΠΈ органичСских вСщСств. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ экологичСскиС спСктры для 26 Π²ΠΈΠ΄ΠΎΠ² Ρ„Π»Π°Π³Π΅Π»Π»Π°Ρ‚, ΠΈΠ»Π»ΡŽΡΡ‚Ρ€ΠΈΡ€ΡƒΡŽΡ‰ΠΈΠ΅ ΠΈΡ… ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠ΅ ΠΊ ΡƒΠΊΠ°Π·Π°Π½Π½Ρ‹ΠΌ Ρ„Π°ΠΊΡ‚ΠΎΡ€Π°ΠΌ. Показано, Ρ‡Ρ‚ΠΎ для ряда ΠΈΠ·ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π²ΠΈΠ΄ΠΎΠ² Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½ΠΎ суТСниС экологичСских спСктров Π² ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹Ρ… Ρ‚ΠΈΠΏΠ°Ρ… Π²ΠΎΠ΄ΠΎΠ΅ΠΌΠΎΠ², Ρ‡Ρ‚ΠΎ особСнно проявляСтся Π² Π±ΠΎΠ»ΠΎΡ‚Π°Ρ… с ΠΈΡ… спСцифичСским комплСксом условий

    Comparative Morphology of Dendrocometes paradoxus (Ciliophora, Suctorea) from two Distant Regions (Ukraine and Mexico) and Different Host Species

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    Comparative analysis of Dendrocometes paradoxus Stein, 1852 cell morphology from various gammarid amphipod species in different regions of Ukraine, and those attached to several host body parts of Hyalella azteca collected in two Mexican lakes, was carried out in order to demonstrate the morphological variability, due to the hosts species or their geographical distribution. For hosts species and corporal distribution, no significant differences between the two populations were shown. As the result, it was found the suctorians common for amphipod crustaceans from Ukraine and Mexico all are conspecific and belong to D. paradoxus.ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΡΡ‚ΡΡ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΌΠΎΡ€Ρ„ΠΎΠ»ΠΎΠ³ΠΈΠΈ суктории Dendrocometes paradoxus Stein, 1852 ΠΈΠ· Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ€Π΅Π³ΠΈΠΎΠ½ΠΎΠ² Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹ (с Ρ€Π°Π·Π½Ρ‹Ρ… Π²ΠΈΠ΄ΠΎΠ² Π³Π°ΠΌΠΌΠ°Ρ€ΠΈΠ΄) ΠΈ с Π°ΠΌΡ„ΠΈΠΏΠΎΠ΄Ρ‹ Hyalella azteca, собранной Π² Π΄Π²ΡƒΡ… мСксиканских ΠΎΠ·Π΅Ρ€Π°Ρ…. БущСствСнных ΠΎΡ‚Π»ΠΈΡ‡ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρƒ особями ΠΈΠ½Ρ„ΡƒΠ·ΠΎΡ€ΠΈΠΈ с Ρ€Π°Π·Π½Ρ‹Ρ… хозяСв, ΠΏΡ€ΠΈ Ρ€Π°Π·Π½ΠΎΠΉ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π½Π° Ρ‚Π΅Π»Π΅ хозяСв, Π° Ρ‚Π°ΠΊΠΆΠ΅ связанных с гСографичСским распространСниСм хозяСв, ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΎ Π½Π΅ Π±Ρ‹Π»ΠΎ. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, Π½Π° Π°ΠΌΡ„ΠΈΠΏΠΎΠ΄Π°Ρ… ΠΈΠ· прСсных Π²ΠΎΠ΄ΠΎΡ‘ΠΌΠΎΠ² Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹ ΠΈ МСксики ΠΎΠ±ΠΈΡ‚Π°Π΅Ρ‚ ΠΎΠ΄ΠΈΠ½ Π²ΠΈΠ΄ сукторий – D. paradoxus

    New Finds of Tokophrya wenzeli (Ciliophora, Suctorea) a Commensal of Water Mites (Acari, Hydracarina) and Redescription of a Species

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    The article deals with investigations of suctorian species Tokophrya wenzeli Matthes et Stiebler, 1970 which was observed in waterbodies of Ukraine, Poland and Macedonia. New observations permit to precise the morphology of tentacles and show the variability of such sufficient characters of the species as morphology of basal plate, stalk and actinophores. The redescription of the species is also presented.Π‘Ρ‚Π°Ρ‚ΡŒΡ посвящСна ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΡŽ суктории Tokophrya wenzeli Matthes et Stiebler, 1970, ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Π½ΠΎΠΉ Π² Π²ΠΎΠ΄ΠΎΠ΅ΠΌΠ°Ρ… Π£ΠΊΡ€Π°ΠΈΠ½Ρ‹, Польши ΠΈ МакСдонии. НовыС Π΄Π°Π½Π½Ρ‹Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΈ ΡƒΡ‚ΠΎΡ‡Π½ΠΈΡ‚ΡŒ Π΄Π΅Ρ‚Π°Π»ΠΈ строСния Ρ‰ΡƒΠΏΠ°Π»Π΅Ρ† Ρ†ΠΈΠ»ΠΈΠ°Ρ‚Ρ‹, Ρ‚Π°ΠΊΠΆΠ΅ оказалось, Ρ‡Ρ‚ΠΎ Π²Π°ΠΆΠ½Ρ‹Π΅ для диагностики Π²ΠΈΠ΄Π° ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΈ, ΠΊΠ°ΠΊ строСниС базального диска, ΡΡ‚Π΅Π±Π΅Π»ΡŒΠΊΠ° ΠΈ Π°ΠΊΡ‚ΠΈΠ½ΠΎΡ„ΠΎΡ€ΠΎΠ² достаточно ΠΈΠ·ΠΌΠ΅Π½Ρ‡ΠΈΠ²Ρ‹. ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΠΈΡ‚ΡΡ пСрСописаниС Π²ΠΈΠ΄Π°

    Morphometric Variations of Discophrya elongata (Ciliophora, Suctorea) Attached to Two Different Species of Aquatic True Bugs (Hemiptera, Prosorrhyncha, Nepomorpha)

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    Morphometric variation in Discophrya elongata living as epibionts of two species of aquatic true bugs, Corisella edulis and Notonecta unifasciata, collected from the same pond in Mexico are discussed. Factors that may be responsible for observed variability, especially hydrodynamic loads and long-term modifications, also are identified and discussed.Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ обсуТдаСтся ΠΈΠ·ΠΌΠ΅Π½Ρ‡ΠΈΠ²ΠΎΡΡ‚ΡŒ Ρ€Π°Π·ΠΌΠ΅Ρ€Π½Ρ‹Ρ… характСристик ΠΏΠΎΠ»ΠΈΠΌΠΎΡ€Ρ„Π½ΠΎΠ³ΠΎ Π²ΠΈΠ΄Π° сукторий Discophrya elongata ΠΏΡ€ΠΈ посСлСнии Π½Π° Π΄Π²ΡƒΡ… Π²ΠΈΠ΄Π°Ρ… Π²ΠΎΠ΄Π½Ρ‹Ρ… ΠΊΠ»ΠΎΠΏΠΎΠ² Corisella edulis ΠΈ Notonecta unifasciata ΠΈΠ· ΠΎΠ΄Π½ΠΎΠ³ΠΎ мСстообитания – ΠΏΡ€ΡƒΠ΄Π° Π² МСксикС. Π£ΠΊΠ°Π·Π°Π½Ρ‹ Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹, с ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΌΠΈ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ связаны Π½Π°Π±Π»ΡŽΠ΄Π°Π΅ΠΌΡ‹Π΅ различия Π² Ρ€Π°Π·ΠΌΠ΅Ρ€Π°Ρ… Π²ΠΈΠ΄Π°, Π² частности, гидродинамичСскиС Π½Π°Π³Ρ€ΡƒΠ·ΠΊΠΈ ΠΈ Π΄Π»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ

    New record of an epizoic diatom, Pseudohimantidium pacificum on two species of copepods from the Indian Ocean

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    1331-1334Pseudohimantidium pacificum Hustedt and Krasske, 1941, an epizoic diatom was found on the copepod genera Corycaeus Dana and Euterpina acutifrons Dana from the coastal waters of Southwestern Bay of Bengal. The present report forms the first record of the epibiont Pseudohimantidium pacificum from the Indian coast and the Indian Ocean
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