The painted turtle (Chrysemys picta) is the most widespread native turtle of North America. (wikipedia.org)
This turtle is a member of the genus Chrysemys, which is part of the pond turtle family Emydidae. (wikipedia.org)
The southern painted turtle (C. dorsalis) is alternately considered the only other species in Chrysemys, or another subspecies of C. picta. (wikipedia.org)
The painted turtle (C. picta) is the only species in the genus Chrysemys. (wikipedia.org)
Originally described in 1783 by Johann Gottlob Schneider as Testudo picta, the painted turtle was called Chrysemys picta first by John Edward Gray in 1855. (wikipedia.org)
Here, we investigated the effects of cadmium on the expression of two gene regulators of TSD in the painted turtle, Chrysemys picta, incubated at male-producing and female-producing temperatures using qPCR. (nsf.gov)
Here we use novel experiments exposing eggs of Painted Turtles ( Chrysemys picta ) to replicated profiles recorded in field nests plus mathematically-modified profiles of similar shape but wider oscillations, and develop a new mathematical model for analysis. (nsf.gov)
Natural history notes: Chrysemys picta marginata (Midland Painted Turtle). (repfocus.dk)
Tolerant2
The Characterization of humanin-like mitochondrial peptide in anoxia tolerant freshwater turtle. (wijelab.ca)
1) Gene expression studies identify genes that are up-regulated in response so hypoxia/anoxia and also evaluate the activity status of specific transcription factors and the suite of genes under their control in order to determine how anoxia tolerant systems respond when oxygen is withdrawn. (kenstoreylab.com)
Freshwater turtle1
Dynamic regulation of six histone H3 lysine (K) methyltransferases in response to prolonged anoxia exposure in a freshwater turtle. (wijelab.ca)
Molecular1
Molecular systematics of the genus Clemmys and the intergeneric relationships of emydid turtles. (dtwg.org)
Nests1
Cues used by raccoons to find turtle nests: effects of flags, human scent, and diamondback terrapin sign. (dtwg.org)
Midland painted turtle1
The midland painted turtle (C. p. marginata) is 10-25 cm (4-10 in) long. (wikipedia.org)
North America1
While habitat loss and road killings have reduced the turtle's population, its ability to live in human-disturbed settings has helped it remain the most abundant turtle in North America. (wikipedia.org)
Aquatic1
High incidence of deformity in aquatic turtles in the John Heinz National Wildlife Refuge. (repfocus.dk)
The male eastern painted turtle (C. p. picta) is 13-17 cm (5-7 in) long, while the female is 14-17 cm (6-7 in). (wikipedia.org)
Picta1
The four subspecies of the painted turtle are the eastern (C. p. picta), midland (C. p. marginata), southern (C. p. dorsalis), and western (C. p. bellii). (wikipedia.org)
Regulation1
Metabolic reorganization in winter: Regulation of pyruvate dehydrogenase (PDH) during long-term freezing and anoxia. (wijelab.ca)
Species4
Four subspecies were then recognized: the eastern by Schneider in 1783, the western by Gray in 1831, and the midland and southern by Louis Agassiz in 1857, though the southern painted turtle is now generally considered a full species. (wikipedia.org)
Morphometrics of six turtle species from South Dakota. (repfocus.dk)
Some epizoophytes on six turtle species collected in Massachusetts and Michigan. (repfocus.dk)
Influence of feeding ecology on blood mercury concentrations in four species of turtles. (repfocus.dk)
Genes1
Yet, whether cadmium alters DNA methylation of genes underlying gonadal formation in turtles remains unknown. (nsf.gov)
Conservation1
The diamondback terrapin in Florida Bay and the Florida Keys: insights into turtle conservation and ecology. (dtwg.org)
Habitat1
Terrestrial habitat use by nesting Painted Turtles in landscapes with different levels of fragmentation. (repfocus.dk)
Nest1
Winter severity and phenology of spring emergence from the nest in freshwater turtles. (repfocus.dk)
Eggs1
Although they are frequently consumed as eggs or hatchlings by rodents, canines, and snakes, the adult turtles' hard shells protect them from most predators. (wikipedia.org)
Oxygen1
The tolerance of modern animals to high temperature and low oxygen is expected to be similar to Permian animals because they had evolved under similar environmental conditions. (geologicalenterprises.com)
Reptile1
In modern times, four U.S. states (Colorado, Illinois, Michigan, and Vermont) have named the painted turtle their official reptile. (wikipedia.org)
Marine1
Food ingestion in the Estuarine turtle diamondback turtle Malaclemys terrapin: comparison with the marine leatherback turtle Dermochelys coriacea. (dtwg.org)
Common2
An alternate East Coast common name for the painted turtle is "skilpot", from the Dutch for turtle, schildpad. (wikipedia.org)
Elodea nuttallii may have a higher salinity tolerance (up to 10 ppt) than common waterweed. (maryland.gov)
Sexual2
Hatched turtles grow until sexual maturity: 2-9 years for males, 6-16 for females. (wikipedia.org)
Results revealed that cadmium alters transcription of Dmrt1 and aromatase, overriding the normal thermal effects during embryogenesis, which could potentially disrupt the sexual development of TSD turtles. (nsf.gov)
Natural1
The role of humanin in natural stress tolerance: An underexplored therapeutic avenue. (wijelab.ca)
Freeze-tolerance10
Multiple, interactive stresses, in addition to diminished cryoprotectant levels, contribute to the reduced capacity for freeze tolerance in posthibernal frogs. (hindawi.com)
Elucidation of these mechanisms will require comprehensive study of organisms for which the fundamental adaptations of freeze tolerance are reasonably well known. (hindawi.com)
The relatively robust freeze tolerance exhibited by certain woodland frogs is associated with their ability to accrue high concentrations of the cryoprotectants, glucose, and/or glycerol, which during freezing are mobilized from glycogen in the liver. (hindawi.com)
Because the hepatic glycogen store is substantially reduced following hibernation and mating, spring frogs can accrue only modest amounts of these agents, and this difference purportedly is the cause of their reduced freeze tolerance [ 4 - 8 ]. (hindawi.com)
It was recently reported [ 9 ] that some freeze-tolerant frogs also use urea as a cryoprotectant, but whether variation in urea levels also contributes to seasonality of freeze tolerance has not been investigated. (hindawi.com)
Aside from cryoprotectant levels, freeze-tolerance capacity is influenced by physiological factors such as the osmotic activity of body fluids, hydration state of the tissues, and distribution of the water between "bulk" and "bound" fractions. (hindawi.com)
Investigation of the putative roles of these factors in the seasonality of freeze tolerance in vertebrates has been hampered by the rather modest limits for freezing survival in these organisms, as even fully cold-hardened frogs survive freezing to temperatures only as low as −4°C to −6°C. Recently, however, extreme freeze tolerance was documented in wood frogs ( Rana sylvatica ) endemic to Interior Alaska [ 10 ]. (hindawi.com)
Exceptional freeze tolerance was also attributed to an unusually large proportion of body water that was "bound" (i.e., unfreezable by virtue of its close association with macromolecules). (hindawi.com)
Our present aim was to characterize freeze-tolerance capacity and physiological aspects of the freezing adaptation in a northern population of R. sylvatica shortly following their emergence from hibernation. (hindawi.com)
The data expand our understanding of metabolic regulation during natural freeze tolerance. (kenstoreylab.com)
Testudo3
Originally described in 1783 by Johann Gottlob Schneider as Testudo picta, the painted turtle was called Chrysemys picta first by John Edward Gray in 1855. (wikipedia.org)
In both the turtle, Pseudemys scripta , and the tortoise, Testudo graeca , lung ventilation is closely accompanied by a tachycardia of predictable magnitude and duration. (silverchair.com)
the turtle Pseudemys scripta , and the tortoise Testudo graeca . (silverchair.com)
Glycogen1
Whereas winter frogs can survive freezing at temperatures at least as low as −16°C, the lower limit of tolerance for spring frogs was between −2.5°C and −5°C. Spring frogs had comparatively low levels of the urea in blood plasma, liver, heart, brain, and skeletal muscle, as well as a smaller hepatic reserve of glycogen, which is converted to glucose after freezing begins. (hindawi.com)
Factors1
Forkhead box 'other' (FOXO) transcription factors have important roles in various cellular processes such as metabolism, cellular proliferation, stress tolerance and lifespan. (kenstoreylab.com)