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International Journal on Algae

Publication de 4  numéros par an

ISSN Imprimer: 1521-9429

ISSN En ligne: 1940-4328

SJR: 0.168 SNIP: 0.377 CiteScore™:: 0.6 H-Index: 11

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The dimensional-age structure of a laboratory population of Scenedesmus quadricauda (Turp.) Breb. in the presence of imazalyl sulfate

Volume 5, Numéro 1, 2003, pp. 82-90
DOI: 10.1615/InterJAlgae.v5.i1.90
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RÉSUMÉ

The laboratory population of the alga Scenedesmus quadricauda (Turp.) Breb. was studied under the influence of the fungicide imazalyl sulfate. The simultaneous presence of two groups of cells ("large", 4.0-4.5 mm in width, mainly in the composition of two-cellular coenobia, and "small", 3.0 mm, in the composition of four-cellular coenobia) proved to be a specific feature of the dimensional-age structure of the control population at different stages of its growth. The toxicant at concentrations of 0.001 and 1.0 mg/L was found to inhibit the division of cells and imparted to them anomalous increase in length and the formation of gigantic cells. At concentration of 0.1 mg/L the division of cells resumed within 1-2 days of intoxication. At high imazalyl concentrations (5, 10, and 20 mg/L) division stimulation preceded the fast death of the culture. The main types of the microalgal population's response to the toxicant are presented. Data on the population structure will be appropriate for use to indicate the toxic action of different substances.

CITÉ PAR
  1. Hilt nee Körner Sabine, Beutler Eike, Bauer Nadine, COMPARISON OF METHODS TO DETECT ALLELOPATHIC EFFECTS OF SUBMERGED MACROPHYTES ON GREEN ALGAE1, Journal of Phycology, 48, 1, 2012. Crossref

  2. Ipatova Valentina, Prokhotskaya Valeria, Dmitrieva Aida, The Structure of Algal Population in the Presence of Toxicants, in Unifying Themes in Complex Systems, 2011. Crossref

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