Madagascar hissing cockroach mite,<i>Gromphadorholaelaps schaeferi</i>, prevents fungal infection in its cockroach host: evidence for a mutualistic symbiosis

Yoder, Jay A.; Benoit, Joshua B.; Hedges, Brian Z.; Jajack, Andrew J.; Zettler, Lawrence W.

doi:10.1080/01647954.2012.662248

Cited by 4 publications

(6 citation statements)

References 27 publications

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“…31,54 The MHC mycoflora includes species of Rhizopus , Penicillium , Mucor , Trichoderma , and Alternaria . 58 In this report, many of the chitinous and ventriculus lesions were associated with abundant luminal bacteria that superficially extended into the areas of inflammation associated with mucosal damage. To a lesser extent, there were also fungi associated with mucosal damage.…”

Section: Discussionmentioning

confidence: 56%

“…A. schaeferi is a known symbiont of the MHC. 38,58,63 A. schaeferi is an approximately 1-mm-long, brown mite, which is most commonly found on the underparts, near the mouth, at the base of the legs, and around the spiracles of MHC. 38 A. schaeferi is host-specific, so much so that upon the death of the MHC, A. schaeferi dies with it rather than move to a different MHC.…”

Section: Discussionmentioning

confidence: 99%

“…schaeferi-infested MHC. 38,47,48,[58][59][60] A previous study reported that A. schaeferi-infested MHC had their life spans extended by approximately 9 months compared with A. schaeferi-free MHC. 58 However, there are rare reports where A. schaeferi has been associated with grossly evident yellow foci (necrosis) with lifting of the arthrodial membrane near mite aggregates.…”

Section: Discussionmentioning

confidence: 99%

“…38,47,48,[58][59][60] A previous study reported that A. schaeferi-infested MHC had their life spans extended by approximately 9 months compared with A. schaeferi-free MHC. 58 However, there are rare reports where A. schaeferi has been associated with grossly evident yellow foci (necrosis) with lifting of the arthrodial membrane near mite aggregates. Inflammatory cell infiltrates were observed within the leg muscles in A. schaeferi-infested colonies, but were absent in A. schaeferi-free colonies.…”

Section: Discussionmentioning

confidence: 99%

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Histological Findings in Captive Madagascar Hissing Cockroaches (Gromphadorhina portentosa) and a Literature Review

Monahan

Bogan

LaDouceur³

2023

Vet Pathol

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Madagascar hissing cockroaches (MHC, Gromphadorhina portentosa) are members of the Blaberidae (giant cockroaches) family of the Insecta class. They are native to the African island of Madagascar where they live within leaf litter on the rainforest floor. Due to their large size, relative tameness, and general easy keeping, they have become popular in classrooms, zoological collections, museums, research laboratories, and as private exotic pets; however, descriptions of diseases of MHC in the literature are rare. The objective of this study is to describe and characterize postmortem histological findings in 18 captive MHC from a single zoological collection. In this retrospective study, 18 (4 females and 14 males) adult MHC necropsies were submitted to Northwest ZooPath between 2016 and 2020 for evaluation. The main organs with histological lesions were chitinous gut (foregut and/or hindgut; n = 17), tracheae ( n = 15), fat body ( n = 14), ventriculus (midgut) ( n = 13), body wall ( n = 12), Malpighian tubules ( n = 12), and hemolymphatic sinuses ( n = 12). All animals had inflammatory lesions affecting various organs. Inflammatory lesions typically consisted of aggregates of hemocytes with variable amounts of melanization and/or encapsulation. Bacterial, fungal, and parasitic infections were common and variably associated with hemocytic inflammation. Many of these organisms may represent symbiotic organisms of the MHC that cause opportunistic infections. This study contributes to the current knowledge of pathological findings and disease response of MHC and reviews diseases reported in multiple cockroach species.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Histological Findings in Captive Madagascar Hissing Cockroaches (Gromphadorhina portentosa) and a Literature Review

Monahan

Bogan

LaDouceur³

2023

Vet Pathol

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“…As is common in reared Gromphadorhina colonies, the individual scanned was infested with mites (see fig. 117), likely Gromphadorholaelaps schaeferi, found to be possibly beneficial by Yoder et al (2012).…”

Section: Order Blattodeamentioning

confidence: 99%

Comparative Anatomy of the Insect Tracheal System Part 1: Introduction, Apterygotes, Paleoptera, Polyneoptera

Herhold

Davis

DeGrey

et al. 2023

Bulletin of the American Museum of Natural History

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A broad comparative study of insect respiratory morphology is presented. Tracheae, epidermal invaginations extending into the body in branching networks of tubes, supply tissues with direct access to air for gas exchange. While previous tracheal studies focused on a handful of taxa and lacked in consistency, here a unified system of tracheal nomenclature is established using visualizations from micro-CT scanning of representatives from apterygotes, Paleoptera, and Polyneoptera, totaling 29 species, 29 genera, and 26 families in 13 insect orders. Three-dimensional visualizations of named tracheal branches establish robust assessments of homology and provide a framework for further studies across class Insecta. Patterns in respiratory architecture are presented along with a discussion of future investigations into phylogenetic and physiological questions.

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The enemy of my parasite is my friend: the possible role of predatory mites as biological control agents of pest beetles in soil

Halliday

2019

International Journal of Acarology

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Madagascar hissing cockroach mite,Gromphadorholaelaps schaeferi, prevents fungal infection in its cockroach host: evidence for a mutualistic symbiosis

Cited by 4 publications

References 27 publications

Histological Findings in Captive Madagascar Hissing Cockroaches (Gromphadorhina portentosa) and a Literature Review

Histological Findings in Captive Madagascar Hissing Cockroaches (Gromphadorhina portentosa) and a Literature Review

Comparative Anatomy of the Insect Tracheal System Part 1: Introduction, Apterygotes, Paleoptera, Polyneoptera

The enemy of my parasite is my friend: the possible role of predatory mites as biological control agents of pest beetles in soil

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