Abstract
Lack of nitrogen, phosphorus, or all nutrients, extremes of pH (<4, >11), presence of ‘heavy’ metals (Co, Cu, Zn, Hg, Pb; 0.5–10 ppm) or pesticides (carbofuran, 2,4-D, dithane, phorate, or bavistin; 1–50 ppm) decreased to various extent or completely inhibited the survival of vegetative cells in all studied algae. The formation of akinetes, thier viability and germination inAnabaena iyengarii, Westiellopsis prolifica, Nostochopsis lobatus andPithophora oedogonia and the formation of zoosporangia, their viability, and the germination of zoospores inCladophora glomerata andRhizoclonium hieroglyphicum was affected. The formation of viable akinetes or zoosporangia was shown to be directly linked with vegetative cell survival and growth; it could not be induced by any chemical stress imposed.
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Agrawal, S.C., Misra, U. Vegetative survival, akinete and zoosporangium formation and germination in some selected algae as affected by nutrients, pH, metals, and pesticides. Folia Microbiol 47, 527–534 (2002). https://doi.org/10.1007/BF02818793
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DOI: https://doi.org/10.1007/BF02818793