Specifically, we found that ILK regulates the expression of hsf-1 and of specific stress response genes via a neuronal circuit that includes neurons involved in thermosensation to establish a systemic stress response that may mediate, or accompany, pat-4/ILK RNAi-induced lifespan extension in C. elegans (Fig. 6).
Upstream molecular mechanisms are involved in the plant response to abiotic stress, above all in the regulation of timings and amount of specific stress responses.
Plant adaptation to environmental stresses is dependent upon the activation of cascades of molecular networks involved in stress perception, signal transduction, and the expression of specific stress-related genes and metabolites.
Stress also often leads to reorganization of nuclear architecture, reflecting the simultaneous inhibition of major nuclear pathways (e.g., replication and transcription) and activation of specific stress responses (e.g., DNA repair).
We present a general formalism for incorporating dislocations in Phase Field methods (PFM) based on the elastic equivalence between a dislocation loop and a platelet inclusion of specific stress-free strain.
To this end, several fundamental discoveries related to the molecular response of cells to cold stress have recently been reported, including the co-initiation of apoptotic cell death and cell survival responses, the characterization of specific genes and pathways involved and the identification of specific stress related trigger events resulting in cellular demise.
Environmental stress can accelerate the evolutionary rate of specific stress-response proteins and create new functions specialized for different environments, enhancing an organism's fitness to stressful environments.
This adaptive response to changing environmental conditions results in an acceleration of evolutionary rate of the lineage and the functional evolution of specific stress-response proteins, which favors organismic fitness to a new environment.
We set out to investigate the role of p53 phosphorylated at Serine 46 (S46) in comparison to p53 phosphorylated at Serine 15 (S15), a post-translational modification that is thought to activate and stabilize p53 independently of specific stress signals.
In C. elegans, HSF-1 and DAF-16 together activate the expression of specific stress genes, of which the sHSPs,suggesting a cross-talk between the two pathways [5].But although there is an evident connection between these two factors, neither DAF-16 nor HSF-1 is completely required for each other's activity.
