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EFFECT OF ATRAZINE ON CHLORELLA VULGARIS
Author(s) -
Ashton F. M.,
Bisalputra T.,
Risley E. B.
Publication year - 1966
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1966.tb07325.x
Subject(s) - atrazine , chlorella vulgaris , biology , chlorella , photosynthesis , chlorophyll , starch , botany , food science , algae , pesticide , agronomy
Samples of a synchronous culture of Chlorella vulgaris were treated with: (a) atrazine, (b) atrazine + glucose, or (c) glucose. Cultures were sampled 0, 24, 48, and 72 hr, after treatment. Chlorophyll and packed cell volume were determined on each, and electron micrographs were taken. Atrazine prevented normal increase in packed cell volume and chlorophyll; this cessation of growth was counteracted by glucose. Chlorella utilized both the endogenous products of photosynthesis and an exogenous energy source, glucose in this instance, simultaneously. The atrazine‐treated cells did not contain starch; control cells, atrazine‐glucose‐ and glucose‐treated cells did. Atrazine did not cause any observable abnormalities in cell organelles.