Metal ions in insect reproduction: a crosstalk between reproductive physiology and immunity

Cardoso-Jaime, Víctor; Broderick, Nichole A.; Maya-Maldonado, Krystal

doi:10.1016/j.cois.2022.100924

Cited by 9 publications

(2 citation statements)

References 83 publications

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“…2020). Zinc is essential for insect reproduction and immunity (Cardoso-Jaime et al . 2022), and Zn homeostasis is known to be strictly controlled in insects (Xiao and Zhou 2016, Slobodian et al .…”

Section: Discussionmentioning

confidence: 99%

Metals and metal isotopes in insect wings: Implications for diet, geolocation and pollution exposure

Reich

Kindra

Dargent

et al. 2022

Preprint

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Anthropogenic activities are exposing insects to abnormal levels of toxic metals, with unknown implications for migratory insects. Simultaneously, metals and metal isotopes have become promising tools for the geolocation of migratory insects. Furthering our understanding of metal cycling in insect tissues is essential, both for the development of metals and metal isotopes as geolocation tools, and for assessing the toxicity risks of metals to insects. We conducted a diet-switching experiment on monarch butterflies (Danaus plexippus) with controlled larval and adult diets to evaluate the dietary and environmental sources of 23 metals and metalloids, strontium isotopes, and lead isotopes to insect wing tissues over a period of 8 weeks. Concentrations of Ca, Co, and Sb differed between the sexes. Ni and Zn bioaccumulated in the insect wing tissues over time, likely from the adult diet, while increases in Al, Cr, Cd, Cu, Fe, and Pb were likely from external sources (i.e., dust aerosols). Bioaccumulation of Pb in the monarch wings was confirmed by Pb isotopes to be from external anthropogenic sources, revealing the potential of Pb isotopes to become an indicator and tracer of metal pollution exposure along migratory paths. Concentrations of Ba, Cs, Mg, Na, Rb, Sr, Ti, Tl, and U appeared to be unaffected by dietary or environmental contamination and should be further developed for geolocation purposes. Strontium isotope ratios remained indicative of the larval diet, at least in males, supporting its potential as a geolocation tool. However, the difference in strontium isotope ratios between sexes, as well as the possibility of external contamination by wetting, requires further investigation. Our results demonstrate the complexity of metal cycling in insects and the need for further investigations, as well as the value of studying metals to develop new tools to quantify pollution exposure, metal toxicity and insect mobility.

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Section: Discussionmentioning

confidence: 99%

Metals and metal isotopes in insect wings: Implications for diet, geolocation and pollution exposure

Reich

Kindra

Dargent

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The high Zn in the laboratory monarch wings is unlikely to be purely a result of high Zn in the larval diet because the Zn levels in the milkweed provided in the diet-switching experiment (18 ± 4 ng/mg, n = 3; Supplementary Table S2) are low compared to Zn concentrations measured in wild milkweed (10-66 ng/ mg, Mitchell et al, 2020). Zinc is essential for insect reproduction and immunity (Cardoso-Jaime et al, 2022), and Zn homeostasis is known to be strictly controlled in insects (Xiao and Zhou, 2016;Slobodian et al, 2021). However, excessive Zn can lead to decreased survival, growth rate, body size, and longevity (Jin et al, 2020).…”

Section: Bioaccumulation Of Metals In Insect Wingsmentioning

confidence: 97%

Metals and metal isotopes incorporation in insect wings: Implications for geolocation and pollution exposure

et al. 2023

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Anthropogenic activities are exposing insects to elevated levels of toxic metals and are altering the bioavailability of essential metals. Metals and metal isotopes have also become promising tools for the geolocation of migratory insects. Understanding the pathways of metal incorporation in insect tissues is thus important for assessing the role of metals in insect physiology and ecology and for the development of metals and metal isotopes as geolocation tools. We conducted a diet-switching experiment on monarch butterflies [Danaus plexippus (L.)] with controlled larval and adult diets to evaluate the sources of 23 metals and metalloids, strontium isotopes, and lead isotopes to insect wing tissues over a period of 8 weeks. Concentrations of Ca, Co, Mo, and Sb differed between the sexes or with body mass. Ni and Zn bioaccumulated in the insect wing tissues over time, likely from the adult diet, while increases in Al, Cr, Cd, Cu, Fe, and Pb were, at least partially, from external sources (i.e., dust aerosols). Bioaccumulation of Pb in the monarch wings was confirmed by Pb isotopes to mainly be sourced from external anthropogenic sources, revealing the potential of Pb isotopes to become an indicator and tracer of metal pollution exposure along migratory paths. Concentrations of Ba, Cs, Mg, Na, Rb, Sr, Ti, Tl, and U appeared to be unaffected by intrinsic factors or additions of metals from adult dietary or external sources, and their potential for geolocation should be further explored. Strontium isotope ratios remained indicative of the larval diet, at least in males, supporting its potential as a geolocation tool. However, the difference in strontium isotope ratios between sexes, as well as the possibility of external contamination by wetting, requires further investigation. Our results demonstrate the complexity of metal incorporation processes in insects and the value of studying metals to develop new tools to quantify pollution exposure, metal toxicity, micronutrient uptake, and insect mobility.

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Upcycling of recycled minerals from sewage sludge through black soldier fly larvae (Hermetia illucens): Impact on growth and mineral accumulation

Seyedalmoosavi

Mielenz

Schleifer

et al. 2023

Journal of Environmental Management

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Metal ions in insect reproduction: a crosstalk between reproductive physiology and immunity

Cited by 9 publications

References 83 publications

Metals and metal isotopes in insect wings: Implications for diet, geolocation and pollution exposure

Metals and metal isotopes in insect wings: Implications for diet, geolocation and pollution exposure

Metals and metal isotopes incorporation in insect wings: Implications for geolocation and pollution exposure

Upcycling of recycled minerals from sewage sludge through black soldier fly larvae (Hermetia illucens): Impact on growth and mineral accumulation

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