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21,780 results
  • A standardized battery of tests to measure Octopus vulgaris' behavioural performance. [Journal Article]
    Invert Neurosci 2020; 20(1):4Borrelli L, Chiandetti C, Fiorito G
  • Here we introduce a series of behavioural tasks to assess inter-individual variability in behaviours exhibited by the cephalopod mollusc Octopus vulgaris. We propose that, by using octopus' predatory behavioural response, it is possible to measure: (1) the ability to adapt to the captive condition (acclimatization), (2) the response towards novel stimuli (neophobia), (3) the capability of social …
  • Adventurous tourism: acclimatization problems and decisions in trans-boundary travels. [Journal Article]
    Int J Biometeorol 2020Grigorieva EA
  • As the twenty-first-Century Maritime Silk Road tourism program aims on development of new tourist routes with special interest on the polar regions of the Arctic and the Antarctic, as well as the Tibetan Plateau, management of climate risks in travels and their reduction is an important issue for achievement of its goals at national and local levels. Acclimatization is crucial for adventurous tou…
  • Neuronal HIF-1α in the nucleus tractus solitarius contributes to ventilatory acclimatization to hypoxia. [Journal Article]
    J Physiol 2020Moya EA, Go A, … Powell FL
  • CONCLUSIONS: We hypothesized that hypoxia inducible factor 1α (HIF-1α) in central nervous system (CNS) respiratory centers is necessary for ventilatory acclimatization to hypoxia (VAH); VAH is a time-dependent increase in baseline ventilation and the hypoxic ventilatory response (HVR) occurring over days to weeks of chronic sustained hypoxia (CH). Constitutive deletion of HIF-1α in CNS neurons in transgenic mice tended to blunt the increase in HVR that occurs in wild-type mice with CH. Conditional deletion of HIF-1α in glutamatergic neurons of the NTS during CH significantly decreased ventilation in acute hypoxia but not normoxia in CH mice. These effects are not explained by changes in metabolic rate nor CO2 and there were no changes in the HVR in normoxic mice. HIF-1α mediated changes in gene expression in CNS respiratory centers are necessary in addition to plasticity of arterial chemoreceptors for normal VAH.
  • Review: Seasonal differences in the physiology of wild northern ruminants. [Journal Article]
    Animal 2020; 14(S1):s124-s132Arnold W
  • Ruminants living in seasonal environments face a two-fold challenge during winter. The energetic cost of maintaining a high body temperature is higher at lower ambient temperatures, and this is compounded by poor availability and quality of feed. Wild ruminants acclimatize to this energetic challenge by hypothermia, that is, reduced endogenous heat production and abandoning the maintenance of a h…
  • Quantitative trait loci analysis of potato tuber greening. [Journal Article]
    Mol Biol Rep 2020Plich J, Zimnoch-Guzowska E, … Śliwka J
  • A conversion of amyloplasts into chloroplasts in the potato tuber after light exposure is known as tuber greening and is one of the major causes of tuber loss. We report here the first mapping of the factors affecting tuber greening in potato. We used an F1 mapping population of diploid potatoes and DArTseq™ markers to construct a genetic map. The individuals of the mapping population, parents an…
  • Coral microbiome composition along the northern Red Sea suggests high plasticity of bacterial and specificity of endosymbiotic dinoflagellate communities. [Journal Article]
    Microbiome 2020; 8(1):8Osman EO, Suggett DJ, … Smith DJ
  • CONCLUSIONS: The conserved endosymbiotic community suggests high physiological plasticity to support holobiont productivity across the different latitudinal regimes. Further, the presence of five novel algal endosymbionts suggests selection of certain genotypes (or genetic adaptation) within the semi-isolated Red Sea. In contrast, the dynamic composition of bacteria associated with the SML across sites may contribute to holobiont function and broaden the ecological niche. In doing so, SML bacterial communities may aid holobiont local acclimatization (or adaptation) by readily responding to changes in the host environment. Our study provides novel insight about the selective and endemic nature of coral microbiomes along the northern Red Sea refugia.
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