RESPIRATORY RESPONSES IN A BRAZILIAN MILLIPEDE, PSEUDONANNOLENE-TRICOLOR, TO DECLINING OXYGEN PRESSURES

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dc.contributor.authorPenteado, CHS
dc.contributor.authorHeblingberaldo, MJA
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:19:38Z
dc.date.available2014-05-20T15:19:38Z
dc.date.issued1991-01-01
dc.description.abstractOxygen uptake and the influence of declining oxygen pressures (Po2's) were examined in a Brazilian spirostreptid millipede, Pseudonannolene tricolor. The data were obtained in a Warburg respirometer at 25-degrees-C from both male and female animals, sexually inactive, in the intermolt stage, and fasting for 24 h. In a sudden exposure to a decreased Po2 the millipedes regulated respiration down to at least 71 mmHg O2. From a Po2 of 35 mmHg O2 downward the animals started to show oxyconformity. When the millipedes were exposed to a stepwise declining Po2 the results indicated only conformation. After exposure to hypoxia, P. tricolor showed a pattern of underrepayment on return to normoxia, but larger millipedes accumulated more O2 debt than smaller ones.en
dc.description.affiliationUNIV ESTADUAL PAULISTA JULIO MESQUITA FILHO,INST BIOCIENCIAS,DEPT ZOOL,BR-13500 RIO CLARO,SP,BRAZIL
dc.description.affiliationUnespUNIV ESTADUAL PAULISTA JULIO MESQUITA FILHO,INST BIOCIENCIAS,DEPT ZOOL,BR-13500 RIO CLARO,SP,BRAZIL
dc.format.extent232-241
dc.identifierhttp://www.jstor.org/stable/30158521
dc.identifier.citationPhysiological Zoology. Chicago: Univ Chicago Press, v. 64, n. 1, p. 232-241, 1991.
dc.identifier.fileWOSA1991FE24200012.pdf
dc.identifier.issn0031-935X
dc.identifier.urihttp://hdl.handle.net/11449/31072
dc.identifier.wosWOS:A1991FE24200012
dc.language.isoeng
dc.publisherUniv Chicago Press
dc.relation.ispartofPhysiological Zoology
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleRESPIRATORY RESPONSES IN A BRAZILIAN MILLIPEDE, PSEUDONANNOLENE-TRICOLOR, TO DECLINING OXYGEN PRESSURESen
dc.typeArtigo
dcterms.licensehttp://www.jstor.org/page/info/about/policies/terms.jsp
dcterms.rightsHolderUniv Chicago Press
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Zoologia - IBRC