Secretion of Inulin, Xylose and Dyes and Its Bearing on the Manner of Urine-Formation by the Kidney of the Crayfish

Maluf, N. S. Rustum

doi:10.2307/1537790

Cited by 24 publications

(3 citation statements)

References 30 publications

(18 reference statements)

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“…Forster and Zia-Wohlrath (1941), working with higher blood inulin levels (192-65 mg. %), also found inulin U/P ratios of one. In the lobster, inulin is not secreted by the nephridium as reported for the crayfish (Maluf, 1941). Since the inulin U/P ratio is substantially one, the U/P ratios alone of other test substances should offer a reasonably accurate guide for determining the partitioning ability of the nephridium, and there is no need to compare the concentration of a test substance with the urinary concentration of inulin in subsequent experiments, as would be necessary if there were a differential separation of water and inulin.…”

Section: Resultsmentioning

confidence: 64%

The General Form of Excretion in the Lobster, Homarus

Burger¹

1957

The Biological Bulletin

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Section: Resultsmentioning

confidence: 64%

The General Form of Excretion in the Lobster, Homarus

Burger¹

1957

The Biological Bulletin

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“…The antennal gland of the crayfish is supplied by two major blood vessels which penetrate the organ and break up into capillaries that finally open into blood spaces bathing the entire tu bule.4,5) Physiologically, the coelomic sac has been shown to be the site of filtration and primary urine formation. [12][13][14][15][16] …”

mentioning

confidence: 99%

Structure of Antennal Gland in Kuruma Prawn Penaeus japonicus.

Nakamura¹,

Nishigaki²

1991

NIPPON SUISAN GAKKAISHI

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A gross anatomy of the antennal gland was conducted for the prawn Penaeus japonicus.Using the histological slices of the second antenna, contour lines of the antennal gland were traced to reconstruct its clay model.The opening site of the organ was observed with a scanning electron microscope to obtain information about urine excretion.The antennal gland was composed of a coelomosac, labyrinth and urinary bladder. The coelomosac as well as the urinary bladder showed a complex of highly diverged vesicles. It had basically a median, transversal and lateral sacs. Some of these components spread to the thoracic r egion. The labyrinth was located in the median coelomosac.The transversal coelomosac con nected the two glands behind the brain.The urinary bladder was situated distal to the labyrinth, leading to an opening slit on a small disc which was formed as a cuticular protrusion at the inside coxopodite of the second antenna.Urine excretion seemed to occur due to hemolymph pressure or inner pressure of the coelomosac.

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“…for the sake of brevity. The simple filtration of inulin is assumed on the basis of osmotic and hydrostatic measurements on Care-inns by Picken (1936), inulin blood : urine ratios of unity found in the lobster, Homarus, by Forster and Zia-Walrath (1941) and by Burger (1955Burger ( , 1957, and the possibility that the work of Maluf (1941), originally thought to indicate inulin secretion in the crayfish, Cambarus, may be interpreted differently as pointed out by Martin (1957).…”

mentioning

confidence: 99%

Salt and Water Anatomy, Constancy and Regulation in Related Crabs From Marine and Terrestrial Habitats

Flemister¹

1958

The Biological Bulletin

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Among the numerous species of brachyuran crabs may be found some which are terrestrial, others which are semi-terrestrial and many which are marine.Within this definitive group of animals of close morphological and taxonomic similarities there is a spectrum of adaptation and the implied regulation of salt and water.This adaptation has succeeded across the marine-terrestrial path of emergence which has proved an insurmountable barrier to all but a few animals. Three species were selected to represent three different degrees of exposure of the animal to the electrolyte and water environment of the sea. The relationship between the electrolyte concentration of the marine environment and that within these animals was investigated to determine the degree of independence and the direction, degree and pathways of electrolyte and water regulation.The common land crab, Gecarcinus latcralis (Frem.), was selected to represent the greatest independence from the marine habitat. It is found in burrows sufficiently high in the banks of beach sand on Nonesuch Island, Bermuda, that these burrows at their deepest do not approach within a meter of the high tide level.Nocturnal and beach scavenger in habit, it is able to go weeks, or even months, without entering the surf. The ghost crab, Ocypode albicans (Bosq), selected to represent a somewhat closer relationship to the marine habitat, is found in burrows near and above high tide level on the Delaware ocean beaches. These

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Secretion of Inulin, Xylose and Dyes and Its Bearing on the Manner of Urine-Formation by the Kidney of the Crayfish

Cited by 24 publications

References 30 publications

The General Form of Excretion in the Lobster, Homarus

The General Form of Excretion in the Lobster, Homarus

Structure of Antennal Gland in Kuruma Prawn Penaeus japonicus.

Salt and Water Anatomy, Constancy and Regulation in Related Crabs From Marine and Terrestrial Habitats

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