Glossary

Akinete: a spore produced from a vegetative cell; often considerably larger than the original vegetative cell with similar contents.

Carcinogen: a cancer causing agent.

Colony: a group of cells, joined together or enclosed by a common sheath or surrounding material.

Cyanosis: a dusky bluish or purplish discoloration of skin or mucus membranes due to deficient oxygenation of the blood.

Fasciculation: muscle twitching that involve adjoining groups of muscle fibers.

Filament: thread-like arrangement of cells.

Globose: globular; shaped like a sphere.

Hepatocyte: liver cells.

Hepatotoxin: a substance that adversely affects the liver.

Heptapeptide: a molecule consisting of seven amino acids covalently bonded together.

Heterocyst: a specialized, nitrogen-fixing cell that develops from a vegetative cell; usually somewhat larger than a vegetative cell with transparent contents (often appearing "empty").

Heterotrophic: obtaining food in soluble or particulate form; not photosynthetic.

Hypovolumic shock: shock caused by decrease in volume of circulating blood.

Jaundice: yellowish pigmentation of skin, tissues, and certain body fluids due to released bile pigments; often caused by liver damage.

Neurotoxin: any substance that is toxic to nerve cells or nerve tissue.

Oblong: An elongated circle.

Photosynthetic: Capable of producing food by photosynthesis.

Pseudovacuole: False vacuoles; pockets of gas or mucilage in the cytoplasm resembling vacuoles; usually light-refracting; contribute buoyancy to cells containing them.

Reticulate: netted; arranged in an interconnected net-work.

Spherical: shaped like a sphere or ball.

Toxicosis: a pathological condition caused by the action of a poison or toxin.

Vegetative cell: typical growing and dividing cells that are not specialized for reproduction, nitrogen- fixation, etc.

Acknowledgments

This information is from "Toxic Cyanobacterial Blooms - A Field/Laboratory Guide". This guide was written by Dr. M. A. Crayton from Pacific Lutheran University, Tacoma, Washington and edited by Dr. F. Joan Hardy, Washington State Department of Health. Used with permission.

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