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6 results for “Theodoxus fluviatilis”
FIG. 4 in A neritid gastropod name "Theodoxus dniestroviensis Put', 1972" is a junior subjective synonym of Th. fluviatilis (L., 1758): decision based on the topotypic specimens study
FIG. 4. Shells of Theodoxus fluviatilis (Linnaeus, 1758). A–C. Three topotypes of "Theodoxus dniestroviensis", NMNH NASU, PD, no number, locality 1. D. Lectotype of Th. dniestroviensis, designated here, locality 1, photo reproduced after Put', 1972. E. Specimen from Seret River, IZAN #614, locality 2. F. Specimen from Hnizna River, IZAN #616, locality 4. G. Specimen from Strypa River, IZAN #615, locality 3. H, I. Specimens from Dniester River, IZAN #333, locality 6. K. Specimen from Dniester River, IZAN #335, locality 5. L. Th. obliteratus-morphotype, ZIN #5912/1, locality 7. M. Lectotype of Th. lacrymans-morphotype, ZIN #6052/1, locality 8. N. Lectotype of Th. alboguttatus-morphotype, ZIN #6051/1, locality 8. O. Lectotype of Th. pulcherrimus-morphotype, ZIN #6053/1, locality 8. L–O. Reproduced after V. Anistratenko et al., 2020. РИС. 4. Theodoxus fluviatilis (Linnaeus, 1758). A –C. Топотипы "Theodoxus dniestroviensis", NMNH NASU, PD, беЗ номера, локалитет 1. D. Лектотип Th. dniestroviensis, обоЗначен Здесь, локалитет 1, фото воспроиЗведено по Put', 1972. E. ЭкЗемпляр иЗ р. Серет, IZAN #614, локалитет 2. F. ЭкЗемпляр иЗ р. ГниЗна, IZAN #616, локалитет 4. G. ЭкЗемпляр иЗ р. Стрыпа, IZAN #615, локалитет 3. H, I. ЭкЗемпляры иЗ р. Днестр, IZAN #333, локалитет 6. K. ЭкЗемпляр иЗ р. Днестр, IZAN #335, локалитет 5. L. Морфотип Th. obliteratus, ZIN #5912/1, локалитет 7. M. Лектотип морфотипа Th. lacrymans, ZIN #6052/1, локалитет 8. N. Лектотип морфотипа Th. alboguttatus, ZIN #6051/1, локалитет 8. O. Лектотип морфотипа Th. pulcherrimus, ZIN #6053/1, локалитет 8. L–O. ВоспроиЗведены по V. Anistratenko et al., 2020.
FIG. 3 in A neritid gastropod name "Theodoxus dniestroviensis Put', 1972" is a junior subjective synonym of Th. fluviatilis (L., 1758): decision based on the topotypic specimens study
FIG. 3. Selected ecotopes of the Dniester River near Monastyrok village, locality 6 (A, B) and Halych village, locality 5 (C, D). Photo E. Degtyarenko. РИС. 3. Некоторые Экотопы р. Днестр воЗле с. Монастырок, локалитет 6 (A, B) и с. Галич, локалитет 5 (C, D). Фото Е. Дегтяренко.
FIG. 1 in A neritid gastropod name "Theodoxus dniestroviensis Put', 1972" is a junior subjective synonym of Th. fluviatilis (L., 1758): decision based on the topotypic specimens study
FIG. 1. Map of the study area with indication of sampling points of Theodoxus. The numbers of localities correspond to those in the Table 1. РИС. 1. Карта иЗученного региона с укаЗанием точек сбора Theodoxus. Номера локалитетов соответствуют таковым в Табл. 1.
FIG. 2 in A neritid gastropod name "Theodoxus dniestroviensis Put', 1972" is a junior subjective synonym of Th. fluviatilis (L., 1758): decision based on the topotypic specimens study
FIG. 2. Some lots of river nerites collected by A.L. Put' on May 26, 1950 from the Dniester River near Rukhotyn village, the type locality of "Theodoxus dniestroviensis" (Fig. 1, locality 1). РИС. 2. Некоторые пробы лунок, собранные А.Л. Путем 26 мая 1950 года иЗ р. Днестр воЗле с. Рухотин, типового местонахоЖдения "Theodoxus dniestroviensis" (Рис. 1, локалитет 1).
Expression levels and activities of energy-yielding ATPases in the oligohaline neritid snail Theodoxus fluviatilis under changing environmental salinities
<p>The aquatic gastropod Theodoxus fluviatilis occurs in Europe and adjacent areas of Asia. The snail species has formed two genetically closely related subgroups, the freshwater ecotype (FW) and the brackish water ecotype (BW). Other than individuals of the FW ecotype, those of the BW ecotype survive in salinities of up to 28‰. Coastal aquatic ecosystems may be affected by climate change due to salinization. Thus, we investigated how the two Theodoxus ecotypes adjust to changes in environmental salinity focussing on the question whether Na+ /K+ -ATPase or V-ATPase are regulated on the transcriptional, the translational or at the activity level under changing external salinities. Animals were gradually adjusted to extreme salinities in containers under long-day conditions and constant temperature. Whole body RNA- or protein extracts were prepared. Semi-quantitative PCR and Western Blot-analyses did not reveal major changes in transcript or protein abundances for the two transporters under low or high salinity conditions. No significant changes in ATPase activities in whole body extracts of animals adjusted to high or low salinity conditions were detected. We conclude that constitutive expression of ATPases is sufficient to support osmotic and ion regulation in this species under changing salinities given the high level of tolerance with respect to changes in body fluid volume.</p>
Expression levels and activities of energy-yielding ATPases in the oligohaline neritid snail Theodoxus fluviatilis under changing environmental salinities
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