Neural circuit s are strongly affected by temperature and failure ensues at extreme s. However, detrimental effects of high temperature on neural pathways can be mitigated by prior exposure to high, but sub-lethal temperatures (heat shock). Using the migratory locust, Locusta migratoria, we investigated the effects of heat shock on the thermosensitivity of a visual interneuron (the descending c...

Immature mosquito development and survival of adults are highly sensitive to environmental temperature, which can alter gene expression during the mosquito life-cycle. To further understand how heat shock proteins are developmentally expressed in mosquitoes, we subjected Þrst instar larvae, 16-h old pupae and female of Aedes aegypti (L.) (Diptera: Culicidae) to heat shock treatment for 0, 15, 3...

Whereas in Escherichia coli only one heat shock regulon is transiently induced by mild heat stress, for Bacillus subtilis three classes of heat shock genes regulated by different mechanisms have been described. Regulation of class I heat shock genes (dnaK and groE operons) involves an inverted repeat (CIRCE element) which most probably serves as an operator for a repressor. Here, we report on t...

Temperature is important for mosquito development and physiological response. Several genes of heat shock protein (HSP) families are known to be expressed in mosquitoes and may be crucial in responding to stress induced by elevated temperature. Suppression subtractive hybridization (SSH) was used to identify target transcripts to heat shock treatment in female Aedes aegypti. Subtraction was per...

Small heat shock protein (sHsp) responses were studied for two evergreen perennial shrubs in the northern California chaparral; one common on warm, south-facing slopes (Ceanothus cuneatus), and the other on cooler, north-facing slopes (Prunus ilicifolia). Small Hsp expression was induced experimentally for field collected leaves. Leaf collections were made where the species co-occur. Small Hsp ...

There is a high association of heat shock on the alteration of energy and lipid metabolism. The alterations associated with thermal stress are composed of gene expression changes and adaptation through biochemical responses. Previous study showed that Angelica gigas Nakai (AGN) root extract promoted adipogenic differentiation in murine 3T3-L1 preadipocytes under the normal temperature condition...

Shabtay, Ariel, and Zeev Arad. Reciprocal activation of HSF1 and HSF3 in brain and blood tissues: is redundancy developmentally related? Am J Physiol Regul Integr Comp Physiol 291: R566–R572, 2006. First published February 23, 2006; doi:10.1152/ajpregu.00685.2005.— Transcriptional induction of heat-shock genes in response to temperature elevation and other stresses is mediated by heat-shock tra...

At low temperature, the synthesis of the colicin A lysis protein in Escherichia coli was slowed down, and consequently its functioning was retarded. The rates were restored when the bacteria were shifted for 10 min to 42 degrees C, except in an rpoH mutant, suggesting that one or more proteins regulated by sigma 32 is necessary for expression of colicin A lysis protein.

BACKGROUND Escherichia coli induces heat shock genes to the temperature up-shift, and changes the metabolism by complicated mechanism. The heat shock response is of practical importance for the variety of applications such as temperature-induced heterologous protein production, simultaneous saccharification and fermentation (SSF) etc. However, the effect of heat shock on the metabolic regulatio...