Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)

Haematophagous insects can ingest large quantities of blood in a single meal producing a large quantity of urine in the following hours to eliminate the excess of water and mineral ions incorporated. The excretory activity of the Malpighian tubules is facilitated by an increase in haemolymph circula...

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Detalles Bibliográficos
Autores principales: Villalobos Sambucaro, María José, Diambra, Luis Aníbal, Noriega, Fernando Gabriel, Ronderos, Jorge Rafael
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Biología
Allatotropin
Allatostatin-C
Rhodnius prolixus
Cardioregulatory
Myoregulatory
Peptides
Neuropeptides
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107792
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-107792
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Allatotropin
Allatostatin-C
Rhodnius prolixus
Cardioregulatory
Myoregulatory
Peptides
Neuropeptides
spellingShingle Biología
Allatotropin
Allatostatin-C
Rhodnius prolixus
Cardioregulatory
Myoregulatory
Peptides
Neuropeptides
Villalobos Sambucaro, María José
Diambra, Luis Aníbal
Noriega, Fernando Gabriel
Ronderos, Jorge Rafael
Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
topic_facet Biología
Allatotropin
Allatostatin-C
Rhodnius prolixus
Cardioregulatory
Myoregulatory
Peptides
Neuropeptides
description Haematophagous insects can ingest large quantities of blood in a single meal producing a large quantity of urine in the following hours to eliminate the excess of water and mineral ions incorporated. The excretory activity of the Malpighian tubules is facilitated by an increase in haemolymph circulation as a result of the intensification of aorta contractions, combined with an increase of anterior midgut peristaltic waves. We have recently shown that haemolymph circulation during post-prandial diuresis is modulated by the synergistic activity of allatotropin (AT) and serotonin, resulting in an increase in aorta and crop contraction rates. In the present study we describe the antagonistic effect of allatostatin-C (AST-C) on the increase of aorta frequency of contractions induced by serotonin/AT in Rhodnius prolixus. The administration of AST-C counteracted the increase in the frequency induced by the treatment with serotonin/ AT, but did not affect the increase in frequency induced by the administration of serotonin alone, suggesting that AST-C is altering the synergism between serotonin and AT. Furthermore, the administration of AST-C during post-prandial diuresis decreases the number of peristaltic waves of the anterior midgut. The AST-C putative receptor is expressed in the hindgut, midgut and dorsal vessel, three critical organs involved in post-prandial diuresis. All together these findings provide evidence that AST-C plays a key role as a myoregulatory and cardioregulatory peptide in R. prolixus.
format Articulo
Articulo
author Villalobos Sambucaro, María José
Diambra, Luis Aníbal
Noriega, Fernando Gabriel
Ronderos, Jorge Rafael
author_facet Villalobos Sambucaro, María José
Diambra, Luis Aníbal
Noriega, Fernando Gabriel
Ronderos, Jorge Rafael
author_sort Villalobos Sambucaro, María José
title Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
title_short Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
title_full Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
title_fullStr Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
title_full_unstemmed Allatostatin-C antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>Rhodnius prolixus</i> (Stal)
title_sort allatostatin-c antagonizes the synergistic myostimulatory effect of allatotropin and serotonin in <i>rhodnius prolixus</i> (stal)
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/107792
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AT ronderosjorgerafael allatostatincantagonizesthesynergisticmyostimulatoryeffectofallatotropinandserotonininirhodniusprolixusistal
bdutipo_str Repositorios
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