Didymosphenia geminata is a microscopic unicellular algae called a diatom (Bacillariophyta). Diatoms are unique for their distinctive siliceous cell walls, which make them very hardy. D. geminata, a Pennate diatom1 (bilaterally symmetrical), often possess a raphe system which consist of slits along the valve of the cell that secrete a mucous for motility and, sometimes stalk growth. In the case of didymo, apical pore fields also allow the secretion of mucilage pads and stalks. As I will discuss later, these stalks and the large cell structure compared to other species amongst the... [continues]
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(2008, 11). A Characterization of the Organism Known as Didymo. and What Makes It a Pest in New Zealand.. StudyMode.com. Retrieved 11, 2008, from http://www.studymode.com/essays/Characterization-Organism-Known-Didymo-Makes-Pest-178257.html
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