Post‐eclosion diuresis in a flightless insect, the silkmoth Bombyx mori

Strathie, L. W.; Nicolson, Susan W.

doi:10.1111/j.1365-3032.1993.tb00618.x

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…We speculate that the biological half-life of 137 Cs in this butterfly is probably just several days because most 137 Cs would be consumed at the late fourth-instar stage, most of which would be excreted upon pupation and eclosion within several days. Excretion of potassium is likely an active process in butterflies [ 92 , 93 ], and thus, radioactive cesium ions may be excreted together with potassium ions. It seems that carnivorous arthropods accumulate higher levels of 137 Cs through a food web [ 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ], but such biological accumulation would not occur in herbivorous butterflies.…”

Section: Discussionmentioning

confidence: 99%

Imaging Plate Autoradiography for Ingested Anthropogenic Cesium-137 in Butterfly Bodies: Implications for the Biological Impacts of the Fukushima Nuclear Accident

Sakauchi

Otaki

2023

Life

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The Fukushima nuclear accident in March 2011 caused biological impacts on the pale grass blue butterfly Zizeeria maha. At least some of the impacts are likely mediated by the host plant, resulting in “field effects”. However, to obtain the whole picture of the impacts, direct exposure effects should also be evaluated. Here, we examined the distribution of experimentally ingested anthropogenic cesium-137 (137Cs) in adult butterfly bodies using imaging plate autoradiography. We showed that 137Cs ingested by larvae was incorporated into adult bodies and was biased to females, although the majority of ingested 137Cs was excreted in the pupal cuticle and excretory material during eclosion. 137Cs accumulation in adult bodies was the highest in the abdomen, followed by the thorax and other organs. These results suggest that 137Cs accumulation in reproductive organs may cause adverse transgenerational or maternal effects mediated by reactive oxygen species (ROS) on germ cells. 137Cs accumulation was detected in field individuals collected in September 2011 and September 2016 but not in May 2011, which is consistent with the abnormality dynamics known from previous studies. Taken together, these results contribute to an integrative understanding of the multifaceted biological effects of the Fukushima nuclear accident in the field.

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Section: Discussionmentioning

confidence: 99%

Imaging Plate Autoradiography for Ingested Anthropogenic Cesium-137 in Butterfly Bodies: Implications for the Biological Impacts of the Fukushima Nuclear Accident

Sakauchi

Otaki

2023

Life

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“…For example, eclosion in insects (i.e. the passage of pupa to adult) triggers 'eclosion diuresis' (see Glossary) in aquatic, terrestrial and flightless insects (Bushman et al, 1989;Coast, 1998;Gillett, 1982Gillett, , 1983Nicolson, 1976;Strathie and Nicolson, 1993). In the case of the moth Heliothis zea, eclosion diuresis reduces body weight by as much as 20%, with ).…”

Section: Ecf Homeostasis In Insects Responding To Environmental Challmentioning

confidence: 99%

The plasticity of extracellular fluid homeostasis in insects

Beyenbach

2016

Journal of Experimental Biology

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In chemistry, the ratio of all dissolved solutes to the solution's volume yields the osmotic concentration. The present Review uses this chemical perspective to examine how insects deal with challenges to extracellular fluid (ECF) volume, solute content and osmotic concentration (pressure). Solute/volume plots of the ECF (hemolymph) reveal that insects tolerate large changes in all three of these ECF variables. Challenges beyond those tolerances may be 'corrected' or 'compensated'. While a correction simply reverses the challenge, compensation accommodates the challenge with changes in the other two variables. Most insects osmoregulate by keeping ECF volume and osmotic concentration within a wide range of tolerance. Other insects osmoconform, allowing the ECF osmotic concentration to match the ambient osmotic concentration. Aphids are unique in handling solute and volume loads largely outside the ECF, in the lumen of the gut. This strategy may be related to the apparent absence of Malpighian tubules in aphids. Other insects can suspend ECF homeostasis altogether in order to survive extreme temperatures. Thus, ECF homeostasis in insects is highly dynamic and plastic, which may partly explain why insects remain the most successful class of animals in terms of both species number and biomass.

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Excretory Systems

Klowden

2013

Physiological Systems in Insects

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Post‐eclosion diuresis in a flightless insect, the silkmoth Bombyx mori

Cited by 6 publications

References 23 publications

Imaging Plate Autoradiography for Ingested Anthropogenic Cesium-137 in Butterfly Bodies: Implications for the Biological Impacts of the Fukushima Nuclear Accident

Imaging Plate Autoradiography for Ingested Anthropogenic Cesium-137 in Butterfly Bodies: Implications for the Biological Impacts of the Fukushima Nuclear Accident

The plasticity of extracellular fluid homeostasis in insects

Excretory Systems

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