Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Eicosanoid involvement in the regulation of behavioral fever in the desert locust, Schistocerca gregaria
AU - Bundey, S
AU - Raymond, S
AU - Dean, P
AU - Roberts, S K
AU - Dillon, R J
AU - Charnley, A K
PY - 2003/4
Y1 - 2003/4
N2 - The desert locust Schistocerca gregaria behaviorally thermoregulates in order to try and maintain a favoured "set point" body temperature. locusts infected with the deuteromycete fungal pathogen Metarhizium anisopliae var acridum choose a significantly elevated temperature. This "behavioral fever" greatly delays the progress of mycosis. We have confirmed this phenomenon and shown that desert locusts also fever when infected with the bacterial pathogen Serratia marcescens. Elevation in the prefered environmental temperature occurs also upon injection with laminarin and lipopolysocchoride (microbial cell wall components). Since such treatments also stimulate the immune system it would appear that "behavioral fever" is probably a feature of the immune response. The eicosanoid biosynthesis inhibitor dexamethasone prevented laminarin invoked fever. This effect was reversable by arachidonic acid. Therefore in common with the febrile response in mammals behavioral fever in insects may be mediated locally by circulating eicosanoids. Arch. Insect Biochem. Physiol. 52:183-192, 2003. (C) 2003 Wiley-Liss, Inc.
AB - The desert locust Schistocerca gregaria behaviorally thermoregulates in order to try and maintain a favoured "set point" body temperature. locusts infected with the deuteromycete fungal pathogen Metarhizium anisopliae var acridum choose a significantly elevated temperature. This "behavioral fever" greatly delays the progress of mycosis. We have confirmed this phenomenon and shown that desert locusts also fever when infected with the bacterial pathogen Serratia marcescens. Elevation in the prefered environmental temperature occurs also upon injection with laminarin and lipopolysocchoride (microbial cell wall components). Since such treatments also stimulate the immune system it would appear that "behavioral fever" is probably a feature of the immune response. The eicosanoid biosynthesis inhibitor dexamethasone prevented laminarin invoked fever. This effect was reversable by arachidonic acid. Therefore in common with the febrile response in mammals behavioral fever in insects may be mediated locally by circulating eicosanoids. Arch. Insect Biochem. Physiol. 52:183-192, 2003. (C) 2003 Wiley-Liss, Inc.
KW - Metarhizium anisopliae
KW - locust
KW - fever
KW - lipopolysaccharide
KW - laminarin-eicosanoid
KW - METARHIZIUM-ANISOPLIAE
KW - BODY-TEMPERATURE
KW - MANDUCA-SEXTA
KW - NODULATION RESPONSES
KW - BACTERIAL-INFECTIONS
KW - BEAUVERIA-BASSIANA
KW - GRASSHOPPER
KW - ORTHOPTERA
KW - THERMOREGULATION
KW - FLAVOVIRIDE
U2 - 10.1002/arch.10081
DO - 10.1002/arch.10081
M3 - Journal article
VL - 52
SP - 183
EP - 192
JO - Archives of Insect Biochemistry and Physiology
JF - Archives of Insect Biochemistry and Physiology
SN - 0739-4462
IS - 4
ER -