Descrição dos estágios imaturos e notas sobre a biologia de Phloea subquadrata (Heteroptera, Phloeidae)

Bernardes, Jorge Luiz Cabeleira; Grazia, Jocélia; Barcellos, Aline; Salomão, Adriana Trevizoli

doi:10.1590/s0073-47212005000400012

Cited by 8 publications

(10 citation statements)

References 8 publications

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“…(7.26 ppm) as the internal reference. All spectra were processed using the VNMRJ or TopSpin 2.1 programs and 13 C NMR, with decoupling, distortionless enhancement by polarization transfer (DEPT) 135º, DEPT 90º, and 2D NMR ( 1 H, 13 C heteronuclear single quantum correlation (HSQC), 1 H, 13 C heteronuclear multiple-bond correlation (HMBC), 1 H-1 H correlation spectroscopy (COSY), and nuclear Overhauser effect spectroscopy (NOESY)) were applied in the structural elucidation of the compounds.…”

Section: Nmr Analysismentioning

confidence: 99%

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(E)-4-Oxo-2-hexenal Dimers in the Scent Glands of the Bark BugPhloea subquadrata(Heteroptera, Phloeidae)

Fonseca¹,

Medeiros²,

Salomão³

et al. 2016

Journal of the Brazilian Chemical Society

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Bark bugs belonging to the family Phloeidae are known for their camouflage on tree trunks. The nymphs store in dorsal abdominal glands defensive secretions with a pungent odor mainly constituted of (E)-2-hexenal, (E)-2-octenal, and (E)-4-oxo-2-hexenal. The metathoracic glands of adults (male and female) store (E)-2-hexen-1-ol and (E)-2-hexenyl acetate, which are less irritating than their corresponding aldehydes. Additional compounds of m/z 224 were detected in the scent glands of these insects and were previously suggested to be dimers of the (E)-4-oxo-2-hexenal. Thus, the aim of this study was to elucidate the details of the chemical structure of the dimers found in the scent glands of Phloea subquadrata. These dimers were obtained by synthesis and were compared with the natural products, confirming the dimeric structures of the latter. These (E)-4-oxo-2-hexenal dimeric compounds are novel and have not been reported before.

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Section: Nmr Analysismentioning

confidence: 99%

“…1 This family comprises three genus: Phloea, with two species (Phloea subquadrata and Phloea corticata); Phloeophana (Phloeophana longirostris) and Serbana (Serbana borneensis), both with one species each. 2 P. subquadrata occurs exclusively in Brazil, from Southern Bahia to Rio Grande do Sul.…”

Section: Introductionmentioning

confidence: 99%

(E)-4-Oxo-2-hexenal Dimers in the Scent Glands of the Bark BugPhloea subquadrata(Heteroptera, Phloeidae)

Fonseca¹,

Medeiros²,

Salomão³

et al. 2016

Journal of the Brazilian Chemical Society

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“…The family is distributed mainly in the Neotropical region and has been better studied since the mid-1960s (Lent and Jurberg 1965 ). More recently, thorough studies have been conducted on this exquisite group of bugs (Guilbert 2003 ;Bernardes et al 2005 ;Salomão et al 2012 ).…”

Section: Phloeidaementioning

confidence: 99%

“…25.37 ). Nymphs and adults feed on the vascular system of the hosts (Bernardes et al 2005 Salomão et al ( 2012 ) gave an excellent account about the group and summarized several studies that have been carried on in the Serra do Japi, São Paulo, Brazil, where the three species occur sympatrically.…”

Section: General Biology and Ecologymentioning

confidence: 99%

Less Diverse Pentatomoid Families (Acanthosomatidae, Canopidae, Dinidoridae, Megarididae, Phloeidae, and Tessaratomidae)

Schwertner

Grazia

2015

True Bugs (Heteroptera) of the Neotropics

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“…7 Nymphal development is prolonged and may take almost one year. 7,8 Phloea subquadrata is associated with trees of the families Myrtaceae, 5,8,9 Phyllantaceae 5 and Combretaceae. 6 Both nymphs and adults may form aggregations on tree trunks.…”

Section: Introductionmentioning

confidence: 99%

Volatile Compounds from the Bark Bugs Phloea subquadrata and Phloeophana longirostris (Heteroptera: Phloeidae)

Fonseca¹,

Salomão²,

Vasconcellos‐Neto³

et al. 2017

J. Braz. Chem. Soc.

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Phloea subquadrata and Phloeophana longirostris are subsocial species that differ from each other in their host plants and degrees of aggregation. Until recently, only ten low-molecular weight compounds, a sesquiterpene, and dimers of (E)-4-oxo-2-hexenal had been reported from the contents of P. subquadrata glands. Here, the main goal was to distinguish the volatile compounds released by adult males, adult females and nymphs of the two species. The analyses revealed 103 compounds, of which 44 were exclusive to Phloeophana longirostris and 15 were exclusive to Phloea subquadrata. The data were analyzed by chemometric methods, which discriminated the phloeid species by developmental stage and sex. (E)-2-Hexenal, (E)-4-oxo-2-hexenal and (E)-2-octenal were found in both species. Adult individuals were characterized by the presence of methyl 2-methylbutanoate, (E)-2-hexenyl acetate and 2-hexenyl butanoate, and nymphs were characterized by 5-ethyl-2(3H)-furanone and (E)-2-octenal. There was chemical distinction between volatiles of adults and nymphs of the two species studied.

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Descrição dos estágios imaturos e notas sobre a biologia de Phloea subquadrata (Heteroptera, Phloeidae)

Cited by 8 publications

References 8 publications

(E)-4-Oxo-2-hexenal Dimers in the Scent Glands of the Bark BugPhloea subquadrata(Heteroptera, Phloeidae)

(E)-4-Oxo-2-hexenal Dimers in the Scent Glands of the Bark BugPhloea subquadrata(Heteroptera, Phloeidae)

Less Diverse Pentatomoid Families (Acanthosomatidae, Canopidae, Dinidoridae, Megarididae, Phloeidae, and Tessaratomidae)

Volatile Compounds from the Bark Bugs Phloea subquadrata and Phloeophana longirostris (Heteroptera: Phloeidae)

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