The morphology and biology of <i>Haemolaelaps casalis</i> Berlese (Acarina; Mesostigmata)

McKinley, D. J.

doi:10.1080/00222936308651326

Cited by 14 publications

(11 citation statements)

References 6 publications

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“…The first major rise in thin cell occurrence is at 10 min too-supporting a possible congruent physical cause by drinking. The related mesostigmatid Haemolaelaps casalis is known to drink fluids (McKinley 1963). Furthermore, Table 1 shows overall steady growth of thin cells with a half life of 31.8 min-exactly in the right ball-park to also support the idea that they are produced in the mid phase of lumenal expansion.…”

Section: Simple Squamous Epithelium Formed Of 'Thin' Cellsmentioning

confidence: 63%

“…1 = 'secretory cells', 2 = 'vacuoles' (here non-food pale areas), 3 = nuclei with nucleoli, 4 = basement membrane, 5 = food inclusions (true vacuoles), 6 = 'digestive cells', 7 = 'undifferentiated cells' months, respectively (Luxton 1966) suggesting a class-level fasting competency in mesostigmatids matching that of pseudoscorpions (Jones 1975). Haemolaelaps casalis can last 2 months without food (McKinley 1963). Even the small haematophagous rat mite Echinolaelaps echidninus can survive at least 24 days starvation in good environmental conditions (Knülle 1967, but only 7-8 days without water according to Owen in McKinley 1963).…”

Section: Simple Squamous Epithelium Formed Of 'Thin' Cellsmentioning

confidence: 99%

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The gut epithelium from feeding to fasting in the predatory soil mite Pergamasus longicornis (Mesostigmata: Parasitidae): one tissue, two roles

Bowman

2019

Exp Appl Acarol

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A review of acarine gut physiology based on published narratives dispersed over the historical international literature is given. Then, in an experimental study of the free-living predatory soil mite Pergamasus longicornis (Berlese), quantitative micro-anatomical changes in the gut epithelium are critically assessed from a temporal series of histological sections during and after feeding on larval dipteran prey. An argued functional synthesis based upon comparative kinetics is offered for verification in other mesostigmatids. Midand hind-gut epithelia cell types interconvert in a rational way dependent upon the physical consequences of ingestion, absorption and egestion. The fasted transitional pseudostratified epithelium rapidly becomes first squamous on prey ingestion (by stretching), then columnar during digestion before confirmed partial disintegration (gut 'lumenation') during egestion back to a pseudo-stratified state. Exponential processes within the mid-and endodermic hind-gut exhibit 'stiff' dynamics. Cells expand rapidly (t 1∕2 = 22.9-49.5 min) and vacuolate quickly (t 1∕2 = 1.1 h). Cells shrink very slowly (t 1∕2 = 4.9 days) and devacuolate gently (t 1∕2 = 1.0-1.7 days). Egestive cellular degeneration has an initial t 1∕2 = 7.7 h. Digestion appears to be triggered by maximum gut expansion-estimated at 10 min post start of feeding. Synchrony with changes in gut lumen contents suggests common changes in physiological function over time for the cells as a whole tightly-coupled epithelium. Distinct in architecture as a tissue over time the various constituent cell types appear functionally the same. Functional phases are: early fluid transportation (0-1 h) and extracellular activity (10-90 min); through rising food absorption (10 min to > 1 day); to slow intracellular meal processing and degenerative egestive waste material production (1 to > 12 days) much as in ticks. The same epithelium is both absorptive and degenerative in role. The switch in predominant physiology begins 4 h after the start of feeding. Two separate pulses of clavate cells appear to be a mechanism to facilitate transport by increasing epithelial surface area in contact with the lumen. Free-floating cells may augment early extracellular lumenal digestion. Possible evidence for salivary enzyme alkaline-related extra-corporeal digestion was found. Giant mycetome-like cells were found embedded in the mid-gut wall. Anteriorly, the mid-gut behaves like a temporally expendable food processing tissue and minor long-term resistive store. Posteriorly the mid-gut behaves like a major assimilative/ catabolic tissue and 'last-out' food depot (i.e., a 'hepatopancreas' function) allowing the mite to resist starvation for up to 3.5 weeks after a single meal. A 'conveyor-belt' wave Extended author information available on the last page of the article Research Council grant B/77307818 at Liverpool John Moores University. Thanks go to Susan Bjornson (then at University of Alberta, Canada) for advice on invertebrate sporozoans and Don E Johnston (Ohio Sta...

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Section: Simple Squamous Epithelium Formed Of 'Thin' Cellsmentioning

confidence: 63%

Section: Simple Squamous Epithelium Formed Of 'Thin' Cellsmentioning

confidence: 99%

The gut epithelium from feeding to fasting in the predatory soil mite Pergamasus longicornis (Mesostigmata: Parasitidae): one tissue, two roles

Bowman

2019

Exp Appl Acarol

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“…Evans & Till 1966;Domrow 1980). If the mite identified as Hypoaspis fenilis by Hill and Gordon (1945) was Androlaelaps casalis, it is very unlikely that it was the cause of the reported dermatitis, as it has been shown that A. casalis is a predator (Hughes 1976) and does not bite humans (McKinley 1963;Lesna et al 2009). Hill and Gordon (1945) considered it probable that either Haemogamasus oudemansi or Hyposapis fenilis or both were responsible for the dermatitis they observed, but were careful to point out that their evidence was not conclusive.…”

Section: Discussionmentioning

confidence: 92%

Occurrence of the predatory mite Haemogamasus pontiger (Berlese) (Acari: Laelapidae) in Australia, with a review of its biology

Halliday¹

2011

Australian Journal of Entomology

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Haemogamasus pontiger (Acari: Laelapidae) is shown to be widespread in straw and stored grain in south-eastern Australia. It sometimes invades houses and other structures, and has been suspected of biting humans and causing dermatitis. However, behavioural and morphological evidence has shown that it is a predator. There is no convincing evidence that this species is a parasite of mammals, or that it has any medical significance.

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“…They found no eggs or egg shells in their breeding cages, but larviposition was never observed. Some mite species in several other Gamasid families display ovoviviparity, or reduced duration of the egg stage during unfavorable conditions (Radovsky, 1960;Filipponi & Francaviglia, 1963McKinley, 1963;Costa, 1966;Barker, 1968). Lack of food of suitable quantity or quality is most often mentioned as the cause of these alternate reproductive modes, although other factors such as overcrowding, lack of suitable oviposition substrate, low oxygen tension, and phoresy have also been implicated.…”

Section: Investigations On Variable Egg Hatching Timementioning

confidence: 99%

Life history studies of the predaceous mite Phytoseius hawaiiensis

Sanderson

McMurtry

1984

Entomologia Exp Applicata

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Phytoseius hawaiiensis (Acari: Phytoseiidae) had relatively long periods of preoviposition, oviposition and postoviposition (4.6, 46.9 and 52.0 days, respectively, at 24 °C), and a relatively low fecundity (31.4 eggs per female), compared to other phytoseiid species. The most favorable food tested was all stages of Oligonychus punicae (Hirst), but various other species of mite prey as well as pollen also promoted oviposition. Extreme variation was observed in hatching time of the eggs, from 10 min (rare) to over 4 days (common). Occasionally, females apparently retain their eggs until just before larvae hatch, as eggs containing developed larvae were observed inside some females. Results of experiments suggested that unsuitable substrate (e.g. for oviposition) is a factor which induces longer egg retention prior to oviposition. RÉSUMÉ Données sur la biologie de l'acarien phytophage Phytoseius hawaiiensis (Acari: Phytoseiidae) Chez Phytoseius hawaiiensis, les durées des périodes précédant la ponte, correspondant à la ponte et succédant à la ponte, sont relativement longues; respectivement 4, 6; 31, 4 et 52 jours à 24 °C; dans ces conditions, la fécondité est relativement basse: 31, 4 oeufs par femelle. Oligonychus punicae (aux différents stades) a constitué le meilleur aliment essayé, mais diverses autres espèces d'acariens ainsi que le pollen induisent la ponte. La date d'éclosion des oeufs a présenté une très grande variabilité, de 10 min (rare) à plus de 4 jours (fréquent). Souvent, les femelles semblent retenir leurs oeufs jusqu'au moment précédant l'éclosion des larves, car des oeufs contenant des larves développées ont été observés dans quelques femelles. Les résultats des expériences ont suggére qu'un substrat défavorable (pour la ponte) induit une plus longue rétention de la ponte.

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The morphology and biology of Haemolaelaps casalis Berlese (Acarina; Mesostigmata)

Cited by 14 publications

References 6 publications

The gut epithelium from feeding to fasting in the predatory soil mite Pergamasus longicornis (Mesostigmata: Parasitidae): one tissue, two roles

The gut epithelium from feeding to fasting in the predatory soil mite Pergamasus longicornis (Mesostigmata: Parasitidae): one tissue, two roles

Occurrence of the predatory mite Haemogamasus pontiger (Berlese) (Acari: Laelapidae) in Australia, with a review of its biology

Life history studies of the predaceous mite Phytoseius hawaiiensis

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