Erythrodynamics in Goldfish, Carassius auratus L.: Temperature Effects

Houston, A. H.; Murad, Ajmal

doi:10.1086/physzool.65.1.30158239

Cited by 33 publications

(20 citation statements)

References 31 publications

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“…The present data confinn the need for examination of at least three fields from at least two blood smears (Houston and Murad 1992). In the case of head kidney and spleen smears, consistent CV values were obtained with five fields from at least two slides.…”

Section: Scoring Proceduressupporting

confidence: 80%

“…Circulating juvenile, labeled juvenile and mature erythrocytes were identified using previously developed cytomorphic criteria (Houston and Murad 1991: Murad and Houston 1992. Mature erythrocytes were readily recognizable in tissue smears.…”

Section: Samplingmentioning

confidence: 99%

“…The most obvious feature of maturation is cell elongation with only modest change in width (Murad and Houston 1992). Therefore the relationship between major axis (as an index of cell length) and two measures of circularity were examined: minor:major axis ratio and form factor (4re area)/ (perimeter2).…”

Section: Labeling and Cell Mmphologymentioning

confidence: 99%

“…Pronephric erythropoiesis is presumably augmented to some degree by that of the spleen and also through division of circulating juvenile red cells. Numbers of circulating juvenile and maturing cells then increase significantly (Murad et al 1990(Murad et al , 1993Houston and Murad 1992). Karyorrhectic response: Release of stored cells together with increased erythropoiesis and juvenile cell division inevitably lead to increases in peripheral red cell concentrations.…”

Section: Hematological Response Dynamicsmentioning

confidence: 99%

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Hematological response in fish: pronephric and splenic involvements in the goldfish,Carassius auratus L.

Houston

Roberts

Kennington

1996

Fish Physiol Biochem

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Pronephric and splenic involvements in erythropoiesis and in stress-induced hematological response by goldfish,Carassius auratus, were examined under conditions of minimal stress and following transient (3h) temperature-induced elevation of O2 demand and transient (3h) exposure to hypoxia. Although hemoglobin content and red cell numbers were little affected, the ontogenic composition of the circulating erythrocyte population was significantly altered by both types of respiratory challenge and also by the stresses associated with capture, air exposure during transfer and intraperitoneal administration of label. Juvenile cell numbers increased sharply while mature erythrocyte abundances declined. Consistent with this, [(3)H] methylthymidine-labeled cell numbers rose in both spleen and pronephros following imposition of stress. Splenic erythropoietic activity was modest relative to that of the pronephros. Our observations point to a readily triggered response involving: [1] release of cells reservoired in the spleen and pronephros, [2] increased erythropoiesis and [3] karyorrhexis. We suggest that while the magnitude of response may depend on the quality and magnitude of the imposed stress, its central features are essentially constant.

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Section: Scoring Proceduressupporting

confidence: 80%

Section: Samplingmentioning

confidence: 99%

Section: Labeling and Cell Mmphologymentioning

confidence: 99%

Section: Hematological Response Dynamicsmentioning

confidence: 99%

See 2 more Smart Citations

Hematological response in fish: pronephric and splenic involvements in the goldfish,Carassius auratus L.

Houston

Roberts

Kennington

1996

Fish Physiol Biochem

View full text Add to dashboard Cite

show abstract

“…Under hypoxic conditions, fish erythrocytes may undergo amitotic divisions (Murad, Everill, and Houston 1993;Soldatov 1996). Schindler and de Vries (1986), Speckner, Schindler, and Albers (1989), and Houston and Murad (1992) reported that young mature erythrocytes of fish might still synthesize hemoglobin.…”

Section: Erythropoiesismentioning

confidence: 99%