The chemical nature of diatom-derived settlement cue(s) of the marine polychaete hydroides elegans (Haswell)

2003 ◽  
Author(s):  
Ka Sin Lam
Keyword(s):  
Chemical Nature ◽  
Hydroides Elegans ◽  
Marine Polychaete

Formation and Function of the Primary Tube During Settlement and Metamorphosis of the Marine Polychaete Hydroides elegans (Haswell, 1883) (Serpulidae)

2021 ◽  
Vol 240 (2) ◽  
pp. 82-94
Author(s):  
Megan J. Huggett ◽  
Eugenio J. Carpizo-Ituarte ◽  
Brian T. Nedved ◽  
Michael G. Hadfield
Keyword(s):  
Hydroides Elegans ◽  
Settlement And Metamorphosis ◽  
Marine Polychaete ◽  
And Function

scholarly journals Toxicity of silver nanoparticles on fertilization success and early development of the marine polychaete Hydroides elegans (Haswell, 1883)

2017 ◽  
Vol 78 (1) ◽  
Author(s):  
Chandhirasekar Devakumar ◽  
Hemalatha Gopalakrishnan ◽  
Arulvasu Chinnasamy ◽  
Balakumar Subramanian ◽  
Prabhu Durai
Keyword(s):  
Silver Nanoparticles ◽  
Early Development ◽  
Fertilization Success ◽  
Hydroides Elegans ◽  
Marine Polychaete

Acute and chronic toxicities of tributyltin to various life stages of the marine polychaete Hydroides elegans

Chemosphere ◽  
2007 ◽  
Vol 69 (1) ◽  
pp. 135-144 ◽  
Author(s):  
M.C. Lau ◽  
K.M. Chan ◽  
K.M.Y. Leung ◽  
T.G. Luan ◽  
M.S. Yang ◽  
...  
Keyword(s):  
Life Stages ◽  
Hydroides Elegans ◽  
Marine Polychaete

Release of Neurosecretion in the Crayfish Sinus Gland

1968 ◽  
Vol 26 ◽  
pp. 150-151
Author(s):  
Richard R. Shivers
Keyword(s):  
Chemical Nature ◽  
Storage Site ◽  
Neurosecretory Granules ◽  
Sinus Gland ◽  
Diameter Class ◽  
Dense Membrane ◽  
Neurohemal Organ ◽  
Dense Vesicles

The sinus gland is a neurohemal organ located in the crayfish eyestalk and represents a storage site for neurohormones prior to their release into the circulation. The sinus gland contains 3 classes of dense, membrane-limited granules: 1) granules measuring less than 1000 Å in diameter, 2) granules measuring 1100-1400 Å in diameter, and 3) granules measuring 1500-2000 Å in diameter. Class 3 granules are the most electron-dense of the granules found in the sinus gland, while class 2 granules are the most abundant. Generally, all granules appear to undergo similar changes during release.Release of neurosecretory granules may be initiated by a preliminary fragmentation of the “parent granule” into smaller, less dense vesicles which measure about 350 Å in diameter (V, Figs. 1-3). A decrease in density of the granules prior to their fragmentation has been observed and may reflect a change in the chemical nature of the granule contents.

Freeze-fracture cytochemistry: A goal set by Russell Steere in 1957

1993 ◽  
Vol 51 ◽  
pp. 60-61
Author(s):  
Nicholas J Severs
Keyword(s):  
Chemical Nature ◽  
Biological Systems ◽  
Freeze Fracture ◽  
Structural Components ◽  
Major Goal ◽  
Membrane Biology ◽  
Routine Application ◽  
The Future ◽  
Freeze Etching

In his pioneering demonstration of the potential of freeze-etching in biological systems, Russell Steere assessed the future promise and limitations of the technique with remarkable foresight. Item 2 in his list of inherent difficulties as they then stood stated “The chemical nature of the objects seen in the replica cannot be determined”. This defined a major goal for practitioners of freeze-fracture which, for more than a decade, seemed unattainable. It was not until the introduction of the label-fracture-etch technique in the early 1970s that the mould was broken, and not until the following decade that the full scope of modern freeze-fracture cytochemistry took shape. The culmination of these developments in the 1990s now equips the researcher with a set of effective techniques for routine application in cell and membrane biology.Freeze-fracture cytochemical techniques are all designed to provide information on the chemical nature of structural components revealed by freeze-fracture, but differ in how this is achieved, in precisely what type of information is obtained, and in which types of specimen can be studied.

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