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Javal M, Thomas S, Lehmann P, et al. The Effect of Oxygen Limitation on a Xylophagous Insect's Heat Tolerance Is Influenced by Life-Stage Through Variation in Aerobic Scope and Respiratory Anatomy. Front Physiol. 2019;10:1426doi: 10.3389/fphys.2019.01426.
Javal, M., Thomas, S., Lehmann, P., Barton, M. G., Conlong, D. E., Du Plessis, A., & Terblanche, J. S. (2019). The Effect of Oxygen Limitation on a Xylophagous Insect's Heat Tolerance Is Influenced by Life-Stage Through Variation in Aerobic Scope and Respiratory Anatomy. Frontiers in physiology, 101426. https://doi.org/10.3389/fphys.2019.01426
Javal, Marion, et al. "The Effect of Oxygen Limitation on a Xylophagous Insect's Heat Tolerance Is Influenced by Life-Stage Through Variation in Aerobic Scope and Respiratory Anatomy." Frontiers in physiology vol. 10 (2019): 1426. doi: https://doi.org/10.3389/fphys.2019.01426
Javal M, Thomas S, Lehmann P, Barton MG, Conlong DE, Du Plessis A, Terblanche JS. The Effect of Oxygen Limitation on a Xylophagous Insect's Heat Tolerance Is Influenced by Life-Stage Through Variation in Aerobic Scope and Respiratory Anatomy. Front Physiol. 2019 Nov 20;10:1426. doi: 10.3389/fphys.2019.01426. eCollection 2019. PMID: 31824337; PMCID: PMC6879455.
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Front Physiol. 2019 Nov 20;10:1426. doi: 10.3389/fphys.2019.01426. eCollection 2019.

The Effect of Oxygen Limitation on a Xylophagous Insect's Heat Tolerance Is Influenced by Life-Stage Through Variation in Aerobic Scope and Respiratory Anatomy.

Frontiers in physiology

Marion Javal, Saskia Thomas, Philipp Lehmann, Madeleine G Barton, Desmond E Conlong, Anton Du Plessis, John S Terblanche

Affiliations

  1. Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Centre for Invasion Biology, Stellenbosch University, Stellenbosch, South Africa.
  2. Department of Zoology, Stockholm University, Stockholm, Sweden.
  3. South African Sugarcane Research Institute, Mount Edgecombe, South Africa.
  4. CT Scanner Facility, Central Analytical Facilities, Stellenbosch University, Stellenbosch, South Africa.
  5. Physics Department, Stellenbosch University, Stellenbosch, South Africa.

PMID: 31824337 PMCID: PMC6879455 DOI: 10.3389/fphys.2019.01426

Abstract

Temperature has a profound impact on insect fitness and performance via metabolic, enzymatic or chemical reaction rate effects. However, oxygen availability can interact with these thermal responses in complex and often poorly understood ways, especially in hypoxia-adapted species. Here we test the hypothesis that thermal limits are reduced under low oxygen availability - such as might happen when key life-stages reside within plants - but also extend this test to attempt to explain that the magnitude of the effect of hypoxia depends on variation in key respiration-related parameters such as aerobic scope and respiratory morphology. Using two life-stages of a xylophagous cerambycid beetle,

Copyright © 2019 Javal, Thomas, Lehmann, Barton, Conlong, Du Plessis and Terblanche.

Keywords: Cacosceles newmannii; critical temperature; hypoxia; thermolimit respirometry; tracheal system

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