Temporal variation in constitutive and inducible heat shock proteins in the Zebra Finch <i>Taeniopygia guttata</i>

Finger, John W.; Hoffman, Alexander; Wada, Haruka

doi:10.1111/ibi.12537

Cited by 10 publications

(4 citation statements)

References 30 publications

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“…We find that heat shock proteins do change in response to temperature; for instance, HSPA2, which is involved in male fertility in birds (Nixon et al, 2017; Scieglinska & Krawczyk, 2015), had significantly higher expression in the testis in response to heat. However, we found a relatively small number of heat shock proteins among differentially expressed genes, and we saw relatively low connectivity of heat shock proteins in thermally sensitive gene regulatory networks, consistent with studies that have found few (Xie et al, 2018) to no (Finger Jr et al, 2018) candidate heat shock proteins upregulated under acute heat exposure in zebra finches, and highlighting the need to understand system‐wide responses to heat.…”

Section: Discussionsupporting

confidence: 89%

“…However, we found a relatively small number of heat shock proteins among differentially expressed genes, and we saw relatively low connectivity of heat shock proteins in thermally sensitive gene regulatory networks, consistent with studies that have found few (Xie et al, 2018) to no (Finger Jr et al, 2018) candidate heat shock proteins upregulated under acute heat exposure in zebra finches, and highlighting the need to understand system-wide responses to heat.…”

Section: Moving Beyond Heat Shock Proteinssupporting

confidence: 88%

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How thermal challenges change gene regulation in the songbird brain and gonad: Implications for sexual selection in our changing world

et al. 2022

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Life on Earth is currently experiencing the highest temperatures in recorded history (Wallace-Wells, 2020). Whereas extreme heat anomalies were limited to <1% of the Earth's surface in the past, extreme events now cover more than 10% of the land area (Hansen et al., 2012). Despite this global challenge, we know relatively little about the impact of heat waves on terrestrial animal populations (Stillman, 2019). Furthermore, the effects of heat on behaviour and physiology are far less well understood in endotherms than

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Section: Discussionsupporting

confidence: 89%

Section: Moving Beyond Heat Shock Proteinssupporting

confidence: 88%

How thermal challenges change gene regulation in the songbird brain and gonad: Implications for sexual selection in our changing world

et al. 2022

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“…This increase in body temperature may be accompanied by initiation of stress responses such as heat shock protein synthesis and glucocorticoid secretion (Feder & Hoffmann, ; Wingfield et al., ) without resulting in oxidative damage or a decrease in growth (Costantini et al., ). On treatment days, groups of 3–7 finches were placed in brooders starting between 8:30 and 9:30 a.m., where they received ad libitum cold water, which was replaced after the first and second hour of the 3‐hr treatment period (Costantini et al., ; Finger, Hoffman, & Wada, ). The remaining juveniles served as a control group and were placed in brooders set to room temperature (21°C–23°C) in the same fashion as the mild heat group.…”

Section: Methodsmentioning

confidence: 99%

Early stress priming and the effects on fitness‐related traits following an adult stress exposure

2018

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Developmental stressors can have strong effects that persist well into adulthood, and are generally seen as detrimental. However, recent work suggests that a mild developmental stressor can have beneficial effects by preparing the organism to better withstand negative impacts when exposed to high levels of the stressor later in life, also known as a conditioning hormesis. Still, little is known about the influence of such hormetic effects on fitness-related measures. We hypothesized that exposure to a mild stressor during development will protect individuals later in life from the negative effects of a high heat stressor on immune function and reproduction. To test this hypothesis, we subjected zebra finches (Taeniopygia guttata) to a repeated mild heat stressor (38°C) as juveniles for 28 days. As adults, the birds were then exposed to a high heat stressor (42°C) for 3 consecutive days and we examined the effects on immune function via wound healing, and on female reproductive output. We found that females given the mild heat stressor as juveniles healed wounds marginally slower, but also had higher clutch viability than controls. For the adult treatment, we saw that high heat had a stimulatory effect on clutch viability as well. Our findings point toward the occurrence of trade-offs between immune function and reproduction due to a cost of hormetic priming when the adult environment does not match that of early life.

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“…Hsp70 and Hsp90 significantly decrease following acute (30 min–2 hr) stressors, lasting up to several hours (e.g. Finger, Hoffman, & Wada, 2018). Longer stressors lasting weeks can also increase or decrease Hsp expression, depending on the stimulus (Li et al., 2011; Pusch et al., 2018).…”

Section: Molecular/cellularmentioning

confidence: 99%

What are you actually measuring? A review of techniques that integrate the stress response on distinct time‐scales

Gormally

Romero

2020

Functional Ecology

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1. The field of stress physiology has rapidly expanded, particularly in those fields interested in identifying chronic stress in wild animals. Despite this expansion, stress remains difficult to assess and understand, due in large part to the temporal complexities of common stress measurement techniques. 2. While the stress response happens on a short timescale , chronic stress results over longer timescales. Therefore, the temporal dynamics of techniques used to assess 'stress' need to be fully understood in order to be applied correctly. 3. In this review, we provide information on 37 physiological and behavioural metrics that are commonly used to measure stress, especially in wild free-living vertebrates, with a particular focus on which timescale they integrate stress. 4. We organize these metrics into seven broad categories based on which physiological system they are most closely associated with (glucocorticoids, sympathetic/ parasympathetic nervous system, immune, metabolic, cellular/molecular, tissue development and behaviour). 5. We conclude by summarizing which kind of biological questions and variation each technique is most suitable for. 6. This review will enable researchers to understand the temporal dynamics of stress measurement techniques for better design of future studies.

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Temporal variation in constitutive and inducible heat shock proteins in the Zebra Finch Taeniopygia guttata

Cited by 10 publications

References 30 publications

How thermal challenges change gene regulation in the songbird brain and gonad: Implications for sexual selection in our changing world

How thermal challenges change gene regulation in the songbird brain and gonad: Implications for sexual selection in our changing world

Early stress priming and the effects on fitness‐related traits following an adult stress exposure

What are you actually measuring? A review of techniques that integrate the stress response on distinct time‐scales

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