Evidence for oxygen and carbon dioxide receptors in insect CNS influencing ventilation

H. P. Bustami, Jon Harrison, R. Hustert

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Ventilatory efferent discharges in the isolated central nervous system (CNS) of the lubber grasshopper Taeniopoda eques were recorded and the change of ventilatory rates were measured in correlation to changing concentrations of oxygen and carbon dioxide. These in vitro responses were compared to the ventilatory rates of intact animals exposed to various gas tensions. We found highly significant effects of oxygen on the ventilatory response of both the in vitro CNS and the intact animals, with ventilatory rates inverse to the concentration of oxygen. Application of changing carbon dioxide concentrations showed significant effects on ventilatory frequencies in isolated CNS of the American desert locust (Schistocerca americana). Our results provide the first direct evidence for the existence of oxygen and carbon dioxide receptors located in the insect CNS.

Original languageEnglish (US)
Pages (from-to)595-604
Number of pages10
JournalComparative Biochemistry and Physiology - A Molecular and Integrative Physiology
Volume133
Issue number3
DOIs
StatePublished - Nov 1 2002

Fingerprint

Neurology
Ventilation
Insects
Central Nervous System
Oxygen
Grasshoppers
Carbon Dioxide
Animals
Gases
carbon dioxide receptor
In Vitro Techniques

Keywords

  • CO receptor
  • Grasshoppers
  • Insects
  • Isolated CNS
  • Locusts
  • Oxygen receptor
  • Schistocerca americana
  • Taeniopoda eques
  • Ventilation

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Physiology

Cite this

Evidence for oxygen and carbon dioxide receptors in insect CNS influencing ventilation. / Bustami, H. P.; Harrison, Jon; Hustert, R.

In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology, Vol. 133, No. 3, 01.11.2002, p. 595-604.

Research output: Contribution to journalArticle

@article{7985c23086494195b388aa48b1660901,
title = "Evidence for oxygen and carbon dioxide receptors in insect CNS influencing ventilation",
abstract = "Ventilatory efferent discharges in the isolated central nervous system (CNS) of the lubber grasshopper Taeniopoda eques were recorded and the change of ventilatory rates were measured in correlation to changing concentrations of oxygen and carbon dioxide. These in vitro responses were compared to the ventilatory rates of intact animals exposed to various gas tensions. We found highly significant effects of oxygen on the ventilatory response of both the in vitro CNS and the intact animals, with ventilatory rates inverse to the concentration of oxygen. Application of changing carbon dioxide concentrations showed significant effects on ventilatory frequencies in isolated CNS of the American desert locust (Schistocerca americana). Our results provide the first direct evidence for the existence of oxygen and carbon dioxide receptors located in the insect CNS.",
keywords = "CO receptor, Grasshoppers, Insects, Isolated CNS, Locusts, Oxygen receptor, Schistocerca americana, Taeniopoda eques, Ventilation",
author = "Bustami, {H. P.} and Jon Harrison and R. Hustert",
year = "2002",
month = "11",
day = "1",
doi = "10.1016/S1095-6433(02)00155-1",
language = "English (US)",
volume = "133",
pages = "595--604",
journal = "Comparative Biochemistry and Physiology - A Physiology",
issn = "1095-6433",
publisher = "Elsevier Inc.",
number = "3",

}

TY - JOUR

T1 - Evidence for oxygen and carbon dioxide receptors in insect CNS influencing ventilation

AU - Bustami, H. P.

AU - Harrison, Jon

AU - Hustert, R.

PY - 2002/11/1

Y1 - 2002/11/1

N2 - Ventilatory efferent discharges in the isolated central nervous system (CNS) of the lubber grasshopper Taeniopoda eques were recorded and the change of ventilatory rates were measured in correlation to changing concentrations of oxygen and carbon dioxide. These in vitro responses were compared to the ventilatory rates of intact animals exposed to various gas tensions. We found highly significant effects of oxygen on the ventilatory response of both the in vitro CNS and the intact animals, with ventilatory rates inverse to the concentration of oxygen. Application of changing carbon dioxide concentrations showed significant effects on ventilatory frequencies in isolated CNS of the American desert locust (Schistocerca americana). Our results provide the first direct evidence for the existence of oxygen and carbon dioxide receptors located in the insect CNS.

AB - Ventilatory efferent discharges in the isolated central nervous system (CNS) of the lubber grasshopper Taeniopoda eques were recorded and the change of ventilatory rates were measured in correlation to changing concentrations of oxygen and carbon dioxide. These in vitro responses were compared to the ventilatory rates of intact animals exposed to various gas tensions. We found highly significant effects of oxygen on the ventilatory response of both the in vitro CNS and the intact animals, with ventilatory rates inverse to the concentration of oxygen. Application of changing carbon dioxide concentrations showed significant effects on ventilatory frequencies in isolated CNS of the American desert locust (Schistocerca americana). Our results provide the first direct evidence for the existence of oxygen and carbon dioxide receptors located in the insect CNS.

KW - CO receptor

KW - Grasshoppers

KW - Insects

KW - Isolated CNS

KW - Locusts

KW - Oxygen receptor

KW - Schistocerca americana

KW - Taeniopoda eques

KW - Ventilation

UR - http://www.scopus.com/inward/record.url?scp=0036850939&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036850939&partnerID=8YFLogxK

U2 - 10.1016/S1095-6433(02)00155-1

DO - 10.1016/S1095-6433(02)00155-1

M3 - Article

C2 - 12443917

AN - SCOPUS:0036850939

VL - 133

SP - 595

EP - 604

JO - Comparative Biochemistry and Physiology - A Physiology

JF - Comparative Biochemistry and Physiology - A Physiology

SN - 1095-6433

IS - 3

ER -