Relationship of environmental water content to glycerol accumulation in the freezing tolerant larvae of Eurosta solidaginis (Fitch)

Rojas, Robert R.; Lee, Richard; Baust, John G.

doi:10.1016/0011-2240(86)90117-3

Cited by 20 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…closely correlated with the drying of the surrounding (Table l ) , although southern populations sometimes gall tissues as the plant senesces (Rojas et al 1986). have a value of -14°C or lower (Baust & Lee 1981).…”

Section: Cold-hardinessmentioning

confidence: 94%

“…Generally weight of approximately 40% from November to Januinsects enter diapause before the onset of adverse ary, with water content remaining constant in the environmental conditions. Since food is unavailable range of 60 to 64% (Rojas et al 1986). In contrast, during winter, energy reserves in the form of lipid and Storey & Storey (1986) reported relatively constant larglycogen are accumulated in preparation for winter.…”

Section: Cold-hardinessmentioning

confidence: 99%

See 1 more Smart Citation

Cryobiology of the freeze-tolerant gall fly Eurosta solidaginis: overwintering energetics and heat shock proteins

Lee¹,

Dommel²,

Joplin³

et al. 1995

Clim. Res.

View full text Add to dashboard Cite

The goldenrod gall fly Eurosta sohdaglnis (Diptera: Tephntidae) ranges from the southern U.S. northward into Canada. The larva overwinters within a ball gall on the stem of goldenrod Sohdago spp The galls often extend above the sno\vpack, exposing the larva to a w~d e range of environmental extremes In lv~nter This species has received extensive attention as a freeze-tolerant ~n s e c t model. A seasonal study of the overwintenng bioenergetics of an Ohio. USA, population revealed marked decreases In body weight, lipid and total caloric content in October and November when environmental temperatures were the highest. Overwintenng larvae produce heat shock proteins in response to hightemperature exposure. However, unlike other insects E. solidag~nis does not appear to synthesize heat shock proteins In response to low-temperature exposure.

show abstract

Section: Cold-hardinessmentioning

confidence: 94%

Section: Cold-hardinessmentioning

confidence: 99%

Cryobiology of the freeze-tolerant gall fly Eurosta solidaginis: overwintering energetics and heat shock proteins

Lee¹,

Dommel²,

Joplin³

et al. 1995

Clim. Res.

View full text Add to dashboard Cite

show abstract

“…Low temperature is the immediate stimulus that initiates polyol accumulation in most insects (Ziegler et al, 1979;Storey & Storey, 1983). Nevertheless, other environmental cues are also involved, for instance photoperiod, food and water availability (Furusawa et al, 1982;Storey & Storey, 1986;Rojas et al, 1986;Hodková & Hodek, 2004).…”

Section: Introductionmentioning

confidence: 99%

Seasonal activity-profiles of enzymes involved in cryoprotectant biosynthesis in Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

Tollarová¹

2008

Eur. J. Entomol.

View full text Add to dashboard Cite

Abstract. The activities of three enzymes involved in polyol biosynthesis (aldose reductase, AR; ketose reductase, KR; and polyol dehydrogenase, PDH) were studied in adult females of the linden bug, Pyrrhocoris apterus, collected from the field during 2005/2006. While the activities of three enzymes were low in reproductive females, activities greater by one or two orders were seen in reproductively arrested females. AR and KR showed similar seasonal trends in activity. Activities were low during diapause initation and later increased and stabilized during autumnal diapause development. Further increases of AR and KR activities were seen during low temperature quiescence and finally the activities sharply decreased during vernal resumption of direct development. The activity of PDH was relatively high (but fluctuating) during diapause, then decreased in quiescent insects and almost disapeared in reproductively active females. Insects collected in February were subjected to laboratory de-acclimation (exposure to high temperatures) followed by re-acclimation (exposure to low temperatures) which resulted in loss of activity in all three enzymes and no regain. High activities of AR, KR and PDH in reproductively arrested females thus conform well with their previously observed high capacity to synthesize and accumulate polyol cryoprotectants.

show abstract

“…Freezing may also impair activity in biological membranes. Various solutes limit this damage, both in living organisms and in model systems (Steponkus, 1984;Leopold, 1986;Anchodorguy et al, 1987;Hincha, 1989;Sun et al, 1996;Shakir and Santarius, 1995;Crowe et al, 1997;Ring and Danks, 1998;Sampedro et al, 1998) and these solutes are accumulated by some freezing-tolerant and desiccation tolerant species (Lee, 1989;Ring, 1980;Rojas et al, 1986;Waslyk et al, 1988;Koster and Lynch, 1992). In this paper we analyse the interactions of membranes with water and solutes at freezing temperatures and/or low hydration.…”

Section: Introductionmentioning

confidence: 99%

Freezing, Drying, and/or Vitrification of Membrane– Solute–Water Systems

1999

View full text Add to dashboard Cite

Membranes are often damaged by freezing and/or dehydration, and this damage may be reduced by solutes. In many cases, these phenomena can be explained by the physical behaviour of membranesolute-water systems. Both solutes and membranes reduce the freezing temperature of water, although their effects are not simply additive. The dehydration of membranes induces large mechanical stresses in the membranes. These stresses produce a range of physical deformations and changes in the phase behaviour. These membrane stresses and strains are in general reduced by osmotic effects, and possibly other effects of solutes-provided of course that the solutes can approach the membrane in question. Membrane stresses may also be affected by vitrification where this occurs between membranes. Many of the differences among the effects of different solutes can be explained by the differences in the cystallization, vitrification, volumetric, partitioning and permeability properties of the solutes.

show abstract

Relationship of environmental water content to glycerol accumulation in the freezing tolerant larvae of Eurosta solidaginis (Fitch)

Cited by 20 publications

References 0 publications

Cryobiology of the freeze-tolerant gall fly Eurosta solidaginis: overwintering energetics and heat shock proteins

Cryobiology of the freeze-tolerant gall fly Eurosta solidaginis: overwintering energetics and heat shock proteins

Seasonal activity-profiles of enzymes involved in cryoprotectant biosynthesis in Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

Freezing, Drying, and/or Vitrification of Membrane– Solute–Water Systems

Contact Info

Product

Resources

About