Pleomorphism in Selected Genera of Algae Page: 54
vi, 79 leaves : ill.View a full description of this thesis.
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CHAPTER IV
DISCUSSION
Although each genera of algae has been ascribed with a
specific set of morphological characteristics, experimental
evidence indicates that these characters may be altered by
algae (4, 16, 24). The role of various inorganic salts and
other chemicals in the maintenance of taxonomically important
characters has been well documented (5, 8, 11, 12, 21, 26),
but as yet has not met with wide application in the problem
of algal classification. In this study, morphological char-
acteristics of Tetraedron bitridens, Ankistrodesmus falcatus,
and Ankistrodesmus sp. cultured in complete BBM were compared
to characteristics of the same organisms when cultured in
deficient BBM.
T?. bitridens showed considerable variation under the
prescribed culturing conditions, but few of the variations
could be correlated to specific nutritional deficiency.
Thickening of cell walls accompanied by chlorosis and absence
of pyrenoids was observed in both ammonium nitrate deficient
BBM and BBM lacking microelements. Kingsbury (13), and
54
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Bruton, Barbara A. Pleomorphism in Selected Genera of Algae, thesis, June 1967; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc163903/m1/60/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .