Transplantation immunity in the American cockroach, Periplaneta americana: The rejection of integumentary grafts from Blatta orientalis

Abstract Background: Ten years ago the main Genome Size (GS) database contained records for 830 insects; although this number has now nearly doubled, 1645 (Gregory 2011 vs Gregory 2021 databases), the paucity of records highlights both the difficulty of animal field trapping and the time-consuming laboratory techniques to evaluate them. Thus, new entries are necessary to reach a satisfactory GS panorama for cockroaches. Results: We report GS values for nine cockroaches (order Blattodea, families Blattidae, Blaberidae and Ectobiidae, ex Blattelidae,), three of which are original additions to the ten already present in the GS database: the death’s head roach (Blaberus craniifer), the Surinam cockroach (Pycnoscelus surinamensis) and the Madeira cockroach (Leucophaea maderae). Three of our values confirm the existing data for the German (Blattella germanica), the oriental (Blatta orientalis) and the giant Mexican (Blabera fusca) cockroaches. Regarding the GS of the American cockroach (Periplaneta americana) the GS database contains two contrasting values (2.72 vs 3.41 pg). We suggest that the 2.72 pg value is likely to be the correct GS as it strikingly similar to our sperm DNA content evaluation (2.80 ± 0.11 pg). Finally, we suggest halving the published GS of the Argentine cockroach Blaptica dubia and the spotted cockroach (the gray cockroach) Nauphoeta cinerea as our estimates come from the evaluation of the sperm DNA content. The data already reported in the literature are based on DNA contents of neural cells (likely polyploid) obtained by grinding entire heads of animals.Conclusions: Although the paucity of the GS data does not allow firm considerations on the possible evolutionary role played by the GS in diversifying cockroach species, we offer two speculative hypotheses that need to be validated by increasing the available GS records: (i) the occurrence of a correlation between increasing 2N chromosome number and GS within the order Blattodea; and (ii) the possible occurrence of a polyploidization phenomenon doubling a basic GS of 0.58 pg of some termite families (superfamily Blattoidea, epifamily Termitoidae) up to the maximum GS value of 3.24 for the Blaberidae family within the order Blattodea (super-order Dictyoptera).

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Orthoptera and allies in the Maritime provinces, Canada: new records and updated provincial checklists

The Canadian Field-Naturalist ◽

10.22621/cfn.v132i4.1984 ◽

2019 ◽

Vol 132 (4) ◽

pp. 319-329 ◽

Cited By ~ 1

Author(s):

John Klymko ◽

Paul Catling ◽

Jeffrey B. Ogden ◽

Robert W. Harding ◽

Donald F. McAlpine ◽

...

Keyword(s):

Prince Edward Island ◽

Native Species ◽

Periplaneta Americana ◽

New Records ◽

American Cockroach ◽

Maritime Provinces ◽

Praying Mantis ◽

Mole Cricket ◽

Oecanthus Nigricornis ◽

Periplaneta Australasiae

We provide an updated checklist of Orthoptera and their allies for each Maritime province of Canada with details for 21 new species records. Drumming Katydid (Meconema thalassinum), recorded from Nova Scotia (NS) and Prince Edward Island (PEI), and Sprinkled Grasshopper (Chloealtis conspersa), recorded from New Brunswick (NB) are reported for the first time from the Maritimes as a whole. We report range extensions in the Maritime region for Australian Cockroach (Periplaneta australasiae; NB), Treetop Bush Katydid (Scudderia fasciata; NS), Short-legged Camel Cricket (Ceuthophilus brevipes; PEI), Spotted Camel Cricket (Ceuthophilus maculatus; PEI), Roesel’s Shield-backed Katydid (Roeseliana roesellii; NS), and Black-horned Tree Cricket (Oecanthus nigricornis; PEI). Short-winged Mole Cricket (Neoscapteriscus abbreviatus; NB) and European Mole Cricket (Gryllotalpa gryllotalpa; NS) are reported as adventives (non-native species that are believed to be not yet established), new to Canada from the Maritimes. Other new records for species not known to be established are Lined Earwig (Doru taeniatum; NS), Australian Cockroach (Periplaneta australasiae; PEI), American Cockroach (Periplaneta americana; NB), Brown Cockroach (Periplaneta brunnea; PEI), Smooth Cockroach (Nyctibora laevigata; NB), West Indian Leaf Cockroach (Blaberus discoidalis; NB), an unidentified Parcoblatta species (NB), Brown-banded Cockroach (Supella longipalpa; PEI), Praying Mantis (Mantis religiosa; NB), and American Bird Grasshopper (Schistocerca americana; NS).

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Cholesterol turnover in the American cockroach, Periplaneta americana (L.)

The Journal of Lipid Research ◽

10.1016/s0022-2275(20)40215-9 ◽

1964 ◽

Vol 5 (3) ◽

pp. 418-421

Author(s):

Hugh E. Vroman ◽

J.N. Kaplanis ◽

W.E. Robbins

Keyword(s):

Periplaneta Americana ◽

American Cockroach

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Molecular cloning of cDNA for lipopolysaccharide-binding protein from the hemolymph of the American cockroach, Periplaneta americana. Similarity of the protein with animal lectins and its acute phase expression

Journal of Biological Chemistry ◽

10.1016/s0021-9258(18)98841-1 ◽

1991 ◽

Vol 266 (20) ◽

pp. 13318-13323

Author(s):

T. Jomori ◽

S. Natori

Keyword(s):

Molecular Cloning ◽

Acute Phase ◽

Periplaneta Americana ◽

Binding Protein ◽

American Cockroach ◽

Lipopolysaccharide Binding Protein ◽

Lipopolysaccharide Binding

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Preparation of Antioxidant and Antibacterial Chitosan Film from Periplaneta americana

Insects ◽

10.3390/insects12010053 ◽

2021 ◽

Vol 12 (1) ◽

pp. 53

Author(s):

Sicong Chen ◽

Xunfan Wei ◽

Zhuoxiao Sui ◽

Mengyuan Guo ◽

Jin Geng ◽

...

Keyword(s):

Food Packaging ◽

Periplaneta Americana ◽

Uv Light ◽

Radical Scavenging ◽

Chitosan Film ◽

American Cockroach ◽

Raw Material ◽

Potential Resource ◽

Radical Scavenging Ability ◽

Dpph Radical Scavenging

Among different insects, the American cockroach (Periplaneta americana) has been bred in industrial scale successfully as a potential resource of protein, lipid, and antibacterial peptide. However, the application of its chitosan has not been studied widely, which has hindered the sufficient utilization of P. americana. In this paper, the chitosan from P. americana was separated, characterized, and processed into film (PaCSF) to examine its potential of being applied in food packaging. As the results of different characterizations showed, PaCSF was similar to shrimp chitosan film (SCSF). However, concerning the performances relating to food packaging, the two chitosan films were different. PaCSF contained more water (42.82%) than SCSF did, resulting in its larger thickness (0.08 mm). PaCSF could resist UV light more effectively than SCSF did. Concerning antioxidant activity, the DPPH radical scavenging ability of PaCSF increased linearly with time passing, reaching 72.46% after 8 h, which was better than that of SCSF. The antibacterial activity assay exhibited that PaCSF resisted the growth of Serratia marcescens and Escherichia coli more effectively than SCSF did. The results implied that P. americana chitosan could be a potential raw material for food packaging, providing a new way to develop P. americana.

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