Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)?
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842020000100073 |
Resumo: | Abstract Stresses can be caused by multiple biotic and abiotic factors and their effects can affect both the biology and the immune system of insects. American cockroach – Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) –besides being an excellent model species, has great medical importance because it can act as a mechanical vector of several pathogens. This study aimed to evaluate the influence of starvation, dehydration and both stresses on weight, and total and differential haemocyte count in P. americana adults. Each specimen was isolated in glass flasks containing or not food and/or water. They were weighed periodically. Another group received water for 24 h after the end of stress period. In the immunologic bioassay, we counted their haemocytes after the final weighing. All stresses reduced the insect weight, especially when the stresses were combined. Females of the control group gained weight and males had it unaltered. Different stress conditions and time did not influence on total haemocyte count. Insects without food and water had the proportion of prohaemocytes increased and plasmatocytes decreased. This study can serve as a basis of further studies of bioecology, behaviour and the ability of resisting insecticides, besides serving as a model to studies in other insect species. |
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Brazilian Journal of Biology |
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Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)?body masscockroachdehydrationhaemocytesstarvationAbstract Stresses can be caused by multiple biotic and abiotic factors and their effects can affect both the biology and the immune system of insects. American cockroach – Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) –besides being an excellent model species, has great medical importance because it can act as a mechanical vector of several pathogens. This study aimed to evaluate the influence of starvation, dehydration and both stresses on weight, and total and differential haemocyte count in P. americana adults. Each specimen was isolated in glass flasks containing or not food and/or water. They were weighed periodically. Another group received water for 24 h after the end of stress period. In the immunologic bioassay, we counted their haemocytes after the final weighing. All stresses reduced the insect weight, especially when the stresses were combined. Females of the control group gained weight and males had it unaltered. Different stress conditions and time did not influence on total haemocyte count. Insects without food and water had the proportion of prohaemocytes increased and plasmatocytes decreased. This study can serve as a basis of further studies of bioecology, behaviour and the ability of resisting insecticides, besides serving as a model to studies in other insect species.Instituto Internacional de Ecologia2020-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842020000100073Brazilian Journal of Biology v.80 n.1 2020reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.190035info:eu-repo/semantics/openAccessDuarte,J. P.Silva,C. E.Ribeiro,P. B.Cárcamo,M. C.eng2021-02-19T00:00:00Zoai:scielo:S1519-69842020000100073Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2021-02-19T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
title |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
spellingShingle |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? Duarte,J. P. body mass cockroach dehydration haemocytes starvation |
title_short |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
title_full |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
title_fullStr |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
title_full_unstemmed |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
title_sort |
Do dietary stresses affect the immune system of Periplaneta americana (Blattaria: Blattidae)? |
author |
Duarte,J. P. |
author_facet |
Duarte,J. P. Silva,C. E. Ribeiro,P. B. Cárcamo,M. C. |
author_role |
author |
author2 |
Silva,C. E. Ribeiro,P. B. Cárcamo,M. C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Duarte,J. P. Silva,C. E. Ribeiro,P. B. Cárcamo,M. C. |
dc.subject.por.fl_str_mv |
body mass cockroach dehydration haemocytes starvation |
topic |
body mass cockroach dehydration haemocytes starvation |
description |
Abstract Stresses can be caused by multiple biotic and abiotic factors and their effects can affect both the biology and the immune system of insects. American cockroach – Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) –besides being an excellent model species, has great medical importance because it can act as a mechanical vector of several pathogens. This study aimed to evaluate the influence of starvation, dehydration and both stresses on weight, and total and differential haemocyte count in P. americana adults. Each specimen was isolated in glass flasks containing or not food and/or water. They were weighed periodically. Another group received water for 24 h after the end of stress period. In the immunologic bioassay, we counted their haemocytes after the final weighing. All stresses reduced the insect weight, especially when the stresses were combined. Females of the control group gained weight and males had it unaltered. Different stress conditions and time did not influence on total haemocyte count. Insects without food and water had the proportion of prohaemocytes increased and plasmatocytes decreased. This study can serve as a basis of further studies of bioecology, behaviour and the ability of resisting insecticides, besides serving as a model to studies in other insect species. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842020000100073 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842020000100073 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1519-6984.190035 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.80 n.1 2020 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129886627037184 |