A Decapod Hemocyte Classification Scheme Integrating Morphology, Cytochemistry, and Function

The Biological Bulletin
J E HoseA S Gerard

Abstract

We have examined the hemocytes of three decapod crustaceans (Homarus americanus, Panulirus interruptus, and Loxorhynchus grandis) and propose a classification of these cells based on morphology, cytochemistry, and studies of cell functions. In all species, hyaline cells and granulocytes were identified. Although we have retained the widely used names for these cells, we show that traditional morphological features alone do not accurately differentiate between these categories. Historically, the term hyaline cell refers to hemocytes that contain no or only a few cytoplasmic granules, whereas granulocytes contain abundant granules. However, the size and number of granules in hyaline cells vary greatly between species and therefore are not useful criteria for identifying these cells. Since morphological identification alone is inadequate and misleading, especially with regard to hyaline cells, a combination of morphological, cytochemical and functional methods is necessary to identify decapod hemocytes. Features of hyaline cells include: a higher nucleocytoplasmic ratio than that of granulocytes, the presence of abundant small ({approx}50 nm), round, electron-dense deposits in the cytoplasm, and their accumulation of trypan blue d...Continue Reading

Citations

Apr 1, 1993·Journal of Morphology·Gary G MartinGarrett Lam
Jun 2, 2007·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Natarajan VidyaMunusamy Arumugam
Dec 18, 2009·Cellular and Molecular Life Sciences : CMLS·John W Semple, John Freedman
Sep 30, 2010·Cell and Tissue Research·Paula Grazielle Chaves-da-SilvaSilvana Allodi
Aug 10, 2005·Brain, Behavior and Evolution·Clynton Lourenço CorrêaAna Maria Blanco Martinez
Mar 26, 2011·Nature Reviews. Immunology·John W SempleJohn Freedman
Feb 29, 2020·Microscopy Research and Technique·Sivakamavalli JeyachandranVaseeharan Baskaralingam
Nov 1, 1997·Journal of Morphology·Lorena VázquezEdgar Zenteno
Sep 1, 1995·Visual Neuroscience·P J O'NeillS C Chamberlain
Jun 23, 2012·PloS One·Paula Grazielle Chaves da SilvaSilvana Allodi
May 7, 2010·Hybridoma·Caroline H SeibertAguinaldo R Pinto
Nov 12, 2016·International Journal of Cell Biology·Norma EstradaFelipe Ascencio
Dec 2, 1999·Journal of Morphology·G G MartinC Luc
Mar 15, 2011·Parasitology Research·Jessica DittmerMathieu Sicard
Oct 20, 2009·The Journal of Experimental Biology·Gary H DickinsonDaniel Rittschof
Nov 6, 2012·The Journal of Experimental Biology·Monica CeliMirella Vazzana
Sep 28, 2001·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·C SierraL Vázquez
Feb 11, 1999·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·M S YehI H Tsai
Dec 28, 2010·Developmental and Comparative Immunology·Claire Roulston, Valerie J Smith

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.