Biodiversity and the functioning of hypersaline lake ecosystems from Crimea Peninsula (Black Sea)

Голубков, С. М.; Кемп, Р. Б.; Golubkov, Mikhail; Balushkina, E. V.; Litvinchuk, L. F.; Gubelit, Yulia I.

doi:10.1127/1863-9135/2007/0169-0079

Cited by 19 publications

(13 citation statements)

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“…Stratiomys japonica larvae were collected in August 2006 at Kunashir Island from volcanic thermal springs with a temperature of 30-408C and high concentrations of hydrogen sulphide, silica and boric acids (Garbuz et al, 2008). Three other species that reside under extreme conditions were collected from the shorelines of hypersaline lakes (Koyashskoe and Kirkoyashskoe in the Crimea) that have temperatures reaching 408C and that demonstrated high mineralization up to hundreds of g/l (Golubkov et al, 2007;Przhiboro, 2014). Two species, S. singularior and Od.…”

Section: Stratiomyidaementioning

confidence: 99%

ADrosophilaheat shock response represents an exception rather than a rule amongst Diptera species

Zatsepina

Пржиборо

Yushenova

et al. 2016

Insect Molecular Biology

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Heat shock protein 70 (Hsp70) is the major player that underlies adaptive response to hyperthermia in all organisms studied to date. We investigated patterns of Hsp70 expression in larvae of dipteran species collected from natural populations of species belonging to four families from different evolutionary lineages of the order Diptera: Stratiomyidae, Tabanidae, Chironomidae and Ceratopogonidae. All investigated species showed a Hsp70 expression pattern that was different from the pattern in Drosophila. In contrast to Drosophila, all of the species in the families studied were characterized by high constitutive levels of Hsp70, which was more stable than that in Drosophila. When Stratiomyidae Hsp70 proteins were expressed in Drosophila cells, they became as short-lived as the endogenous Hsp70. Interestingly, three species of Ceratopogonidae and a cold-water species of Chironomidae exhibited high constitutive levels of Hsp70 mRNA and high basal levels of Hsp70. Furthermore, two species of Tabanidae were characterized by significant constitutive levels of Hsp70 and highly stable Hsp70 mRNA. In most cases, heat-resistant species were characterized by a higher basal level of Hsp70 than more thermosensitive species. These data suggest that different trends were realized during the evolution of the molecular mechanisms underlying the regulation of the responses of Hsp70 genes to temperature fluctuations in the studied families.

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Section: Stratiomyidaementioning

confidence: 99%

ADrosophilaheat shock response represents an exception rather than a rule amongst Diptera species

Zatsepina

Пржиборо

Yushenova

et al. 2016

Insect Molecular Biology

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“…Nemotelus bipunctatus was also collected in Crimea in the water margin zone of coastal lagoonderived Lake Koyashskoe where mineralization of water near the shore was about 280 g/l (Golubkov et al 2007 ). singularior is a very common and widely-distributed Transpalaearctic typical eurythermal species.…”

Section: Organisms From High Temperature and Salinity Areas (Extremopmentioning

confidence: 99%

Heat Shock Proteins and Whole Body Adaptation to Extreme Environments

Evgen’ev

Гарбуз

Zatsepina

2014

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“…The larvae were abundant at sites protected from strong wave action, on a mixture of sand, mud and detritus. The mineralization averaged by the lake varied year by year within the range 209-429 g/L (Golubkov et al 2007). The mineralization of lake water near the shore at the sampling site in the sampling periods in 2006-2008 was about 280 g/L.…”

Section: Insects and Habitatsmentioning

confidence: 99%

Larvae of related Diptera species from thermally contrasting habitats exhibit continuous up‐regulation of heat shock proteins and high thermotolerance

et al. 2008

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A population of Stratiomys japonica, a species belonging to the family Stratiomyidae (Diptera), common name 'soldier flies', occurs in a hot volcanic spring, which is apparently among the most inhospitable environments for animals because of chemical and thermal conditions. Larvae of this species, which naturally often experience temperatures more than 40 degrees C, have constitutively high concentrations of the normally inducible heat-shock protein Hsp70, but very low level of corresponding mRNA. Larvae of three other species of the same family, Stratiomys singularior, Nemotelus bipunctatus and Oxycera pardalina, are confined to different type semi-aquatic habitats with contrasting thermal regime. However, all of them shared the same pattern of Hsp70 expression. Interestingly, heat-shock treatment of S. japonica larvae activates heat-shock factor and significantly induces Hsp70 synthesis, whereas larvae of O. pardalina, a species from constant cold environment, produce significantly less Hsp70 in response to heat shock. Adults of the four species also exhibit lower, but detectable levels of Hsp70 without heat shock. Larvae of all species studied have very high tolerance to temperature stress in comparison with other Diptera species investigated, probably representing an inherent adaptive feature of all Stratiomyidae enabling successful colonization of highly variable and extreme habitats.

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Biodiversity and the functioning of hypersaline lake ecosystems from Crimea Peninsula (Black Sea)

Cited by 19 publications

References 0 publications

ADrosophilaheat shock response represents an exception rather than a rule amongst Diptera species

ADrosophilaheat shock response represents an exception rather than a rule amongst Diptera species

Heat Shock Proteins and Whole Body Adaptation to Extreme Environments

Larvae of related Diptera species from thermally contrasting habitats exhibit continuous up‐regulation of heat shock proteins and high thermotolerance

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