A physiological and biochemical model for digestion in the ectoparasitic mite, Psoroptes ovis (Acari, Psoroptidae)

K. A. Hamilton, A. J. Nisbet, M. J. Lehane, M. Taylor, Peter Francis Billingsley

    Research output: Contribution to journalArticle

    35 Citations (Scopus)

    Abstract

    Mites are an important group of arthropod pests affecting crops, animals and humans. Despite this, detailed physiological studies on these organisms remain sparse due largely to their small size. Unifying models are required to draw together the diverse information from studies on different groups and species. This paper describes a model for digestion in the parasitic mite, Psoroptes ovis, the causative agent of psoroptic mange or sheep scab disease. The limited information about this species is supplemented with data from other acarines, especially house dust mites and ticks. We review the range of enzymes and allergens found in mites and consider their possible roles in digestion in mites, generally and in particular, P. ovis. Histological studies, enzyme biochemistry and molecular biology and experimental evidence suggest that P. ovis utilises a digestive system reliant upon acid peptidases functioning in a largely intracellular environment. The actions of the digestive enzymes are supplemented by the involvement of bacteria as potential direct and indirect sources of nutrition. It is possible that some extra-corporeal digestion also takes place. The interaction of bacteria and digestive enzymes on the skin surface of the sheep may be responsible for the excessive pathological reactions evident in clinical sheep scab. (C) 2003 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)773-785
    Number of pages12
    JournalInternational Journal for Parasitology
    Volume33
    DOIs
    Publication statusPublished - 2003

    Keywords

    • digestion
    • Psoroptes ovis
    • proteolytic
    • enzymes
    • allergens
    • house dust mites
    • HOUSE-DUST MITE
    • SHEEP SCAB MITE
    • GLUTATHIONE-S-TRANSFERASE
    • GROUP-I ALLERGENS
    • DERMATOPHAGOIDES-PTERONYSSINUS
    • LEPIDOGLYPHUS-DESTRUCTOR
    • TYROPHAGUS-PUTRESCENTIAE
    • HYDROLYTIC ENZYMES
    • BLOMIA-TROPICALIS
    • CYSTEINE PROTEASE

    Cite this

    A physiological and biochemical model for digestion in the ectoparasitic mite, Psoroptes ovis (Acari, Psoroptidae). / Hamilton, K. A.; Nisbet, A. J.; Lehane, M. J.; Taylor, M.; Billingsley, Peter Francis.

    In: International Journal for Parasitology, Vol. 33, 2003, p. 773-785.

    Research output: Contribution to journalArticle

    Hamilton, K. A. ; Nisbet, A. J. ; Lehane, M. J. ; Taylor, M. ; Billingsley, Peter Francis. / A physiological and biochemical model for digestion in the ectoparasitic mite, Psoroptes ovis (Acari, Psoroptidae). In: International Journal for Parasitology. 2003 ; Vol. 33. pp. 773-785.
    @article{a3322785e9674814931981eadedc3e22,
    title = "A physiological and biochemical model for digestion in the ectoparasitic mite, Psoroptes ovis (Acari, Psoroptidae)",
    abstract = "Mites are an important group of arthropod pests affecting crops, animals and humans. Despite this, detailed physiological studies on these organisms remain sparse due largely to their small size. Unifying models are required to draw together the diverse information from studies on different groups and species. This paper describes a model for digestion in the parasitic mite, Psoroptes ovis, the causative agent of psoroptic mange or sheep scab disease. The limited information about this species is supplemented with data from other acarines, especially house dust mites and ticks. We review the range of enzymes and allergens found in mites and consider their possible roles in digestion in mites, generally and in particular, P. ovis. Histological studies, enzyme biochemistry and molecular biology and experimental evidence suggest that P. ovis utilises a digestive system reliant upon acid peptidases functioning in a largely intracellular environment. The actions of the digestive enzymes are supplemented by the involvement of bacteria as potential direct and indirect sources of nutrition. It is possible that some extra-corporeal digestion also takes place. The interaction of bacteria and digestive enzymes on the skin surface of the sheep may be responsible for the excessive pathological reactions evident in clinical sheep scab. (C) 2003 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.",
    keywords = "digestion, Psoroptes ovis, proteolytic, enzymes, allergens, house dust mites, HOUSE-DUST MITE, SHEEP SCAB MITE, GLUTATHIONE-S-TRANSFERASE, GROUP-I ALLERGENS, DERMATOPHAGOIDES-PTERONYSSINUS, LEPIDOGLYPHUS-DESTRUCTOR, TYROPHAGUS-PUTRESCENTIAE, HYDROLYTIC ENZYMES, BLOMIA-TROPICALIS, CYSTEINE PROTEASE",
    author = "Hamilton, {K. A.} and Nisbet, {A. J.} and Lehane, {M. J.} and M. Taylor and Billingsley, {Peter Francis}",
    year = "2003",
    doi = "10.1016/S0020-7519(03)00089-4",
    language = "English",
    volume = "33",
    pages = "773--785",
    journal = "International Journal for Parasitology",
    issn = "0020-7519",
    publisher = "ELSEVIER APPL SCI PUBL LTD",

    }

    TY - JOUR

    T1 - A physiological and biochemical model for digestion in the ectoparasitic mite, Psoroptes ovis (Acari, Psoroptidae)

    AU - Hamilton, K. A.

    AU - Nisbet, A. J.

    AU - Lehane, M. J.

    AU - Taylor, M.

    AU - Billingsley, Peter Francis

    PY - 2003

    Y1 - 2003

    N2 - Mites are an important group of arthropod pests affecting crops, animals and humans. Despite this, detailed physiological studies on these organisms remain sparse due largely to their small size. Unifying models are required to draw together the diverse information from studies on different groups and species. This paper describes a model for digestion in the parasitic mite, Psoroptes ovis, the causative agent of psoroptic mange or sheep scab disease. The limited information about this species is supplemented with data from other acarines, especially house dust mites and ticks. We review the range of enzymes and allergens found in mites and consider their possible roles in digestion in mites, generally and in particular, P. ovis. Histological studies, enzyme biochemistry and molecular biology and experimental evidence suggest that P. ovis utilises a digestive system reliant upon acid peptidases functioning in a largely intracellular environment. The actions of the digestive enzymes are supplemented by the involvement of bacteria as potential direct and indirect sources of nutrition. It is possible that some extra-corporeal digestion also takes place. The interaction of bacteria and digestive enzymes on the skin surface of the sheep may be responsible for the excessive pathological reactions evident in clinical sheep scab. (C) 2003 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.

    AB - Mites are an important group of arthropod pests affecting crops, animals and humans. Despite this, detailed physiological studies on these organisms remain sparse due largely to their small size. Unifying models are required to draw together the diverse information from studies on different groups and species. This paper describes a model for digestion in the parasitic mite, Psoroptes ovis, the causative agent of psoroptic mange or sheep scab disease. The limited information about this species is supplemented with data from other acarines, especially house dust mites and ticks. We review the range of enzymes and allergens found in mites and consider their possible roles in digestion in mites, generally and in particular, P. ovis. Histological studies, enzyme biochemistry and molecular biology and experimental evidence suggest that P. ovis utilises a digestive system reliant upon acid peptidases functioning in a largely intracellular environment. The actions of the digestive enzymes are supplemented by the involvement of bacteria as potential direct and indirect sources of nutrition. It is possible that some extra-corporeal digestion also takes place. The interaction of bacteria and digestive enzymes on the skin surface of the sheep may be responsible for the excessive pathological reactions evident in clinical sheep scab. (C) 2003 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.

    KW - digestion

    KW - Psoroptes ovis

    KW - proteolytic

    KW - enzymes

    KW - allergens

    KW - house dust mites

    KW - HOUSE-DUST MITE

    KW - SHEEP SCAB MITE

    KW - GLUTATHIONE-S-TRANSFERASE

    KW - GROUP-I ALLERGENS

    KW - DERMATOPHAGOIDES-PTERONYSSINUS

    KW - LEPIDOGLYPHUS-DESTRUCTOR

    KW - TYROPHAGUS-PUTRESCENTIAE

    KW - HYDROLYTIC ENZYMES

    KW - BLOMIA-TROPICALIS

    KW - CYSTEINE PROTEASE

    U2 - 10.1016/S0020-7519(03)00089-4

    DO - 10.1016/S0020-7519(03)00089-4

    M3 - Article

    VL - 33

    SP - 773

    EP - 785

    JO - International Journal for Parasitology

    JF - International Journal for Parasitology

    SN - 0020-7519

    ER -