S. Yi

Publications37
h-index14
Citations860
Highly Influential Citations46
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Rapid cold-hardening protects Drosophila melanogaster from cold-induced apoptosis
TLDR
The hypothesis that the RCH response protects against cold-shock-induced apoptosis in Drosophila melanogaster is supported.
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Aquaporins play a role in desiccation and freeze tolerance in larvae of the goldenrod gall fly, Eurosta solidaginis
TLDR
This study supports the hypothesis that naturally occurring aquaporins in E. solidaginis are regulated during desiccation and promote cell survival during freezing and freezes fat body, midgut and salivary gland tissues in the presence and absence of mercuric chloride.
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Rapid cold-hardening increases membrane fluidity and cold tolerance of insect cells.
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Purification and characterization of an oviposition-stimulating protein of the long hyaline tubules in the male migratory grasshopper, Melanoplus sanguinipes.
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Increased dietary cholesterol enhances cold tolerance in Drosophila melanogaster.
TLDR
Results suggest a mechanistic link between protection from chilling or cold shock injury and modifications to the cellular membrane in Drosophila melanogaster by raising larvae on a cholesterol-augmented diet.
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Mild desiccation rapidly increases freeze tolerance of the goldenrod gall fly, Eurosta solidaginis: evidence for drought-induced rapid cold-hardening
TLDR
The rapidity with which a mild desiccation stress increased freeze tolerance closely resembles the rapidColdhardening response, which occurs during brief sub-lethal chilling, and suggests that drought stress can induce rapid cold-hardening.
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High temperature pulses decrease indirect chilling injury and elevate ATP levels in the flesh fly, Sarcophaga crassipalpis.
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Calcium signaling mediates cold sensing in insect tissues
TLDR
It is firmly established that calcium signaling mediates cold sensing in insect tissues and implies that insect tissues use calcium signaling to instantly detect decreases in temperature and trigger downstream cold-hardening mechanisms.
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Detecting freeze injury and seasonal cold-hardening of cells and tissues in the gall fly larvae, Eurosta solidaginis (Diptera: Tephritidae) using fluorescent vital dyes.
  • S. Yi, R. Lee
  • Biology
    Journal of insect physiology
  • 1 November 2003
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Rapid cold-hardening blocks cold-induced apoptosis by inhibiting the activation of pro-caspases in the flesh fly Sarcophaga crassipalpis
TLDR
It is shown that cold-induced apoptosis varies among different tissues and the rapid cold-hardening (RCH) response protects insects from the otherwise lethal consequences of injury due to cold-shock by significantly reduced apoptotic cell death in all tested tissues.
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