The histology of the excretory kidney of the paddlefish, <i>Polyodon spathula</i>

Georgi, T.A.; Beedle, Dennis

doi:10.1111/j.1095-8649.1978.tb03471.x

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…The juvenile American paddlefish kidney was similar to previously described teleost kidney tissue (Ellis, 1977; Georgi & Beedle, 1978; Fange 1986; Petrie‐Hanson & Ainsworth, 2000). Teleost RHT is believed to have an equivalent function to mammalian bone marrow; the haematopoietic tissue generates stem cells and the renal elements filter blood and regulate water, electrolyte and protein balance (Ellis, 1977; Zapata & Cooper, 1990; Castillo et al ., 1993; Petrie‐Hanson & Ainsworth, 2000).…”

Section: Discussionmentioning

confidence: 99%

American paddlefish leukocytes demonstrate mammalian‐like cytochemical staining characteristics in lymphoid tissues

Petrie‐Hanson

Peterman

2005

Journal of Fish Biology

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American paddlefish Polyodon spathula leukocytes demonstrated cytoplasmic staining patterns very similar to mammalian leukocytes when stained with acid phosphatase, a-naphthyl butyrate esterase and b-glucuronidase. American paddlefish monocytes, lymphocytes and granulocytes stained positive for acid phosphatase. Monocytes stained positive for a-naphthyl butyrate esterase. Lymphocytes that stained positive for a-naphthyl butyrate esterase were designated type A. Lymphocytes that stained positive with antibodies to the L chain of white sturgeon Acipenser transmontanus immunoglobulin (Ig) were designated type B. Type A and type B lymphocytes stained positive for b-glucuronidase. All leukocytes observed were negative for Sudan Black B. Monocytes, lymphocytes and granulocytes were present in the renal haematopoietic tissue, spleen, thymus, pericardial myeloid tissue, lamina propria of the spiral valve, and in meningeal myeloid tissue located dorsal to the brain, at the base of the brain and around the notochord. Peyer's patches were present in the gut. Morphological characteristics of leukocytes stained with Wright's and haematoxylin and eosin and appeared very similar to those of other fish species. # 2005 The Fisheries Society of the British Isles

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Section: Discussionmentioning

confidence: 99%

American paddlefish leukocytes demonstrate mammalian‐like cytochemical staining characteristics in lymphoid tissues

Petrie‐Hanson

Peterman

2005

Journal of Fish Biology

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“…The MMT adjacent to the kidney appeared to originate in the meninges and continued posteriorly along the notochord toward the RHT. Other studies report the anterior portion of the chondrostean kidney to consist largely of lymphoid tissue (Georgi & Beedle, 1978). Fange (1986) found imprints of the kidney of hybrid sturgeon contained numerous blast cells, medium sized lymphocytes, granulocytes, macrophages and erythrocytes.…”

Section: Discussionmentioning

confidence: 99%

“…The paddlefish has glomerular elements similar to those of higher vertebrates; arteries near the glomeruli, including afferent arterioles, exhibited staining characteristics similar to renin producing arterial cells found in other vertebrates (Georgi & Beedle, 1978).…”

Section: Discussionmentioning

confidence: 99%

Ontogeny of American paddlefish lymphoid tissues

Peterman

Petrie‐Hanson

2006

Journal of Fish Biology

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The temporal and spatial distribution of American paddlefish Polyodon spathula immune cell populations was determined using enzyme cytochemistry and immunohistochemistry. Monocytes and macrophages were present in the renal haematopoietic tissue, spleen, meningeal myeloid tissue, cardiac myeloid tissue and lamina propria of the spiral valve at 7 days post‐hatch (dph). Immature lymphocytes were present in the renal haematopoietic tissue, spleen, meningeal myeloid tissue, cardiac myeloid tissue, thymus and lamina propria of the spiral valve at 7 dph. Type A lymphocytes (T‐cell like) were demonstrated in the thymus by 21 dph. Type B immunoglobulin positive lymphocytes (B‐cell like) were present in the renal haematopoietic tissue, cardiac myeloid tissue and lamina propria of the spiral valve by 7 dph, the thymus at 21 dph, the spleen by 56 dph, and were not observed in the meningeal myeloid tissue of paddlefish aged 7–28 dph. Granulocytes were present in the renal haematopoietic tissue, thymus, spleen, meningeal myeloid tissue, cardiac myeloid tissue and lamina propria of the spiral valve by 7 dph. The spleens in 7–28 dph fish were predominately red pulp. Differentiation of leukocytic and erythrocytic compartments (white and red pulp, respectively) was not apparent in the spleen until 56 dph. Remarkable thymic cortical and medullary differentiation was not yet present at 28 dph, and the thymus was not sampled at 56, 84 or 112 dph. The cardiac myeloid tissue was not developed until 56 dph. Peyer’s patches were present in the lamina propria by 56 dph. Paddlefish lympho‐myeloid structures are therefore slow to develop, and vaccination procedures should be performed at 2–4 months post‐hatch.

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Biology

Shelton¹

2015

Paddlefish Aquaculture

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The histology of the excretory kidney of the paddlefish, Polyodon spathula

Cited by 7 publications

References 7 publications

American paddlefish leukocytes demonstrate mammalian‐like cytochemical staining characteristics in lymphoid tissues

American paddlefish leukocytes demonstrate mammalian‐like cytochemical staining characteristics in lymphoid tissues

Ontogeny of American paddlefish lymphoid tissues

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