Experimental Studies on the Physiology of the Molluscs—second Paper

Mendel, Lafayette B.; Bradley, H. C.

doi:10.1152/ajplegacy.1905.14.4.313

Cited by 28 publications

(11 citation statements)

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“…There are particular advantages if the number of functions are few, since the elimination of the isotope will be affected by a minimum of environmental variables. The presence of large quantities of zinc in the digestive gland of gastropod mollusks was first reported by Mendel and Bradley ( 1905) . They suggested that the element served as reserve material for the formation of a respiratory pigment, "hemosycotypin."…”

Section: Discussionmentioning

confidence: 97%

Use of 65Zn to Determine the Field Metabolism of the Snail Cepaea nemoralis L.

Williamson¹

1975

Ecology

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Zinc—65 elimination rates were measured in the laboratory for adult land snails, Cepaea nemoralis fed on carrot at 10°, 13°, 16°, and 22° and fed on a natural food material at 13°C, and for juveniles fed on carrot at 13°C. Ingestion, assimilation, production, and respiration were determined for each snail. Regressions between 65Zn loss and various aspects of metabolic activity were significant at each temperature except 22°C. For adult snails at 10°, 13°, and 16°C, excretion of the isotope was best related to weight of food ingested (r = 0.82), but respiration could also be predicted if temperature was known. The digestive gland contained 77% of the total body count, and its secretions were the principal means of 65Zn elimination. The loss of 65Zn under field conditions was used to estimate the amount of energy ingested, assimilated, and respired by adult snails over an annual cycle. Egg production did not involve an appreciable proportion of the total 65Zn loss.

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Section: Discussionmentioning

confidence: 97%

Use of 65Zn to Determine the Field Metabolism of the Snail Cepaea nemoralis L.

Williamson¹

1975

Ecology

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“…86 This dye was also used by Mendel and Bradley to visualize the distribution of metals in hepatic tissues of the sea snail Sycotypus canaliculatus . 87 This study also employed sodium nitroprusside in what was the first demonstration of labile Zn 2+ in these tissues. Although this technique suffered from low sensitivity and therefore attracted little attention at the time, the reaction was later shown to be specific for Zn 2+ detection.…”

Section: A Brief History Of Visualizing Cellular Metal Ion Distributimentioning

confidence: 99%

Fluorescent Sensors for Measuring Metal Ions in Living Systems

2014

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CONTENTS 1. Introduction 4564 2. General Features of Fluorescent Sensors for Metal Ions 4566 2.1. Photophysical Properties of Fluorophores 4566 2.2. Mechanisms of Altering a Fluorescence Signal 4566 2.3. Classes of Sensors for Live-Cell Imaging 4568 2.3.1. Molecular Probes 4568 2.3.2. Genetically Encoded Probes 4568 2.3.3. Hybrid Probes 4569 3. Important Considerations for Introduction of Sensors 4569 3.1. Factors Affecting the Intracellular Concentration of Sensors 4569 3.2. Buffering 4570 3.3. Localization 4570 3.3.1. Factors Governing Localization of Molecular Probes 4571 3.3.2. Genetic Targeting of Probes 4572 4. A Brief History of Visualizing Cellular Metal Ion Distribution with Probes 4572 5. Probes for Zinc 4576 5.1. Zinc Homeostasis 4576 5.2. Small-Molecule Probes for Zn 2+ 4576 5.2.1. Intensity-Based Probes 4576 5.2.2. Ratiometric Probes for Zn 2+ 4580 5.3. Genetically Encoded Sensors for Zn 2+ 4581 5.4. Hybrid Probes for Zn 2+ 4583 6. Probes for Copper 4584 7. Probes for Iron 4587 7.1. Iron Homeostasis 4587 7.2. Early Probes for Labile Iron 4588 7.3. Probes for Fe 2+ 4588 7.4. Probes for Fe 3+ 4589 8. Available Fluorescent Probes for Other Biological Metals 4591 8.1. Manganese (Mn 2+ ) 4591 8.2. Nickel (Ni 2+ ) 4592 8.3. Cobalt (Co 2+ ) 4592 9. Probes for Toxic Metals 4592 9.1. Lead (Pb 2+ ) 4592 9.2. Cadmium (Cd 2+ ) 4594 9.3. Mercury (Hg 2+ ) 4594 10. Outlook 4596 Author Information 4596 Corresponding Author 4596 Notes 4596 Biographies 4597 References 4597

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“…The dye was later applied by Mendel et al for exploring the distribution of inorganic constituents in the liver of sycotypus canalicalatus 26. Haematoxylin is a natural product isolated from the logwood tree.…”

Section: Histochemical Techniquesmentioning

confidence: 99%

“…In 1905, Mendel and Bradley demonstrated for the first time the presence of labile zinc in hepatopancreatic tissues of sycotypus canalicalatus using sodium nitroprusside followed by alkaline sulfide development 26. Due to its low sensitivity, the protocol did not receive much attention at the time, despite the fact that the reaction was later demonstrated to be specific 47.…”

Section: Histochemical Techniquesmentioning

confidence: 99%