A New Look at Insect Respiration

Sláma, Karel

doi:10.2307/1541570

Cited by 138 publications

(88 citation statements)

References 10 publications

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“…The evolution of autonomic neuroendocrine system, the coelopulse system (review by Sláma 2008), gave insects a selective advantage of homeostatic regulation of ventilation, repairing deficiencies such as CO2 hypercapnia or O2 hypoxia. This physiological type of respiratory adaptations is manifested by perfect neuromuscular coupling and synchronization of spiracular valves with the changes in internal body pressure, which are made by extracardiac haemocoelic pulsations or the abdominal pressure pump (Sláma 1988(Sláma , 2010. The coelopulse system of insects apparently fulfills a similar physiological role as does the autonomic, parasympathetic neuroendocrine system in regulation of respiration in the human body.…”

Section: Discussionmentioning

confidence: 99%

“…The opposite ends of the tubing end up in special connectors cemented to the spiracles. The plastic connectors are needed for easy dismantling and ventilation of the spiracles to prevent possible accumulation of CO2 during prolonged recordings (for more details see Sláma 1988Sláma , 1999.…”

Section: Methodsmentioning

confidence: 99%

“…The findings of Krogh (1920) became generally known in textbooks of insect physiology as the "Krogh´s diffusional theory of insect respiration" (Wigglesworth 1963). Due to the lack of challenging experimental data, the diffusional theory survives until today as the main theoretical concept of insect respiration (Krogh 1941;Wigglesworth 1953;Kuznetzoff 1953;Sláma 1988Sláma , 2010Nation 2002Nation , 2016Klowden 2013).…”

Section: Historical Overviewmentioning

confidence: 99%

“…The microrespirographic method was used for measurement of O2 consumption by the salivary glands in Drosophila melanogaster Meigen, used for the study of gene activation (Farkaš and Sláma 2015). Unfortunately, the role of the neuroendocrine system in regulation of insect respiration by extracardiac pulsations in haemocoelic pressure (Sláma 1988(Sláma , 2009(Sláma , 2010Sláma and Denlinger 1992;Sláma and Jedlička 2012) remains mostly unknown due to technical problems involved in the recording of haemocoelic pressure.…”

Section: Historical Overviewmentioning

confidence: 99%

“…It is thus impossible to record spiracular functions by sensors which close the passage of air through spiracles. To avoid this obstacle, we developed in 1988 a microanemometric method for simultaneous monitoring of openings and closures of up to eight spiracles, without closing the passage of air (Sláma 1988). In pupae of Cossus (Figures 14 and 15) we have monitored only three spiracles (TL, TR, 2AR; see insert in Figure 15 and the connectors in Figure 1C) located on the rigid, anterior body compartment.…”

Section: Microanemometric Recording Of Inspirations and Expirations Tmentioning

confidence: 99%

See 4 more Smart Citations

Terrestrial Insects with Tracheae Breath by Actively Regulating Ventilatory Movements: Physiological Similarities to Humans

Sláma¹,

Santiago‐Blay²

2017

LEB

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Historical Overviewmentioning

confidence: 99%

Section: Historical Overviewmentioning

confidence: 99%

Section: Microanemometric Recording Of Inspirations and Expirations Tmentioning

confidence: 99%

See 3 more Smart Citations

Terrestrial Insects with Tracheae Breath by Actively Regulating Ventilatory Movements: Physiological Similarities to Humans

Sláma¹,

Santiago‐Blay²

2017

LEB

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Effect of corazonin and crustacean cardioactive peptide on heartbeat in the adult American cockroach (Periplaneta americana)

Sláma

Sakai

Takeda

2006

Arch Insect Biochem Physiol

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Changes in the frequency of cardiac pulsations have been monitored in the decapitated body of adult P. americana before and 5 h after the injections of [Arg(7)]-corazonin and CCAP, using newly invented touch-free, noninvasive optocardiographic methods. Relatively large dosages of these peptides (10(-6) M concentrations in the body) had no effect on the rate of the heartbeat beyond the Ringer control limits. It has been concluded, therefore, that Corazonin and CCAP, which are currently cited in the literature as "the most potent cardiostimulating peptides" in insects, have no effect on the physiological regulation of cardiac functions in the living body.

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Infradian cycles of oxygen consumption in diapausing pupae of the flesh fly, Sarcophaga crassipalpis, monitored by a scanning microrespirographic method

Sláma

Denlinger

1992

Arch Insect Biochem Physiol

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Fine details of the infradian O2 consumption cycles that characterize pupal diapause in flesh flies have been monitored by a newly designed microrespirographic method coupled with an electronically regulated O2 generator. During the 4-5 days between the peaks of elevated O2 consumption, the diapausing pupae maintained a very low and fairly constant respiratory rate (13 microl O2 x g-1.h-1). During the intercalated peaks of increased respiratory metabolism, which lasted an average of 33.6 h to 24-27 degrees C, the average maximum rate of O2 consumption was 86.9 microl.g-1.h-1, a value of 6.7 times higher than the interpeak values. The respiratory peaks started abruptly in some cases while the decline was consistently gradual. During the periods between the peaks there were no discontinuous bursts of CO2 release, a feature common to diapause in many other insects. Diapause was characteristically terminated during a peak of the O2 consumption cycle. At diapause termination O2 consumption remained at the maximum values of the peak for many hours and then gradually increased to levels characteristic of nondiapause development.

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A New Look at Insect Respiration

Cited by 138 publications

References 10 publications

Terrestrial Insects with Tracheae Breath by Actively Regulating Ventilatory Movements: Physiological Similarities to Humans

Terrestrial Insects with Tracheae Breath by Actively Regulating Ventilatory Movements: Physiological Similarities to Humans

Effect of corazonin and crustacean cardioactive peptide on heartbeat in the adult American cockroach (Periplaneta americana)

Infradian cycles of oxygen consumption in diapausing pupae of the flesh fly, Sarcophaga crassipalpis, monitored by a scanning microrespirographic method

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