Peculiarities of the effect of octyl- and nonylphenols on the growth and development of microalgae
| Autor: | N. G. Medvedeva, T. B. Zaytseva, V. N. Mamontova |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Cyanobacteria
biology Chemical structure Aquatic Science biology.organism_classification Photosynthesis Geosmin Pigment chemistry.chemical_compound chemistry Algae visual_art Environmental chemistry Botany visual_art.visual_art_medium Green algae Xenobiotic Ecology Evolution Behavior and Systematics |
| Zdroj: | Inland Water Biology. 8:406-413 |
| ISSN: | 1995-0837 1995-0829 |
| DOI: | 10.1134/s1995082915040161 |
| Popis: | The influence of hormonelike xenobiotics (HLXs), i.e., octyland nonylphenols, on microalgae has been investigated. Studies have shown that the effect of HLXs on the life and activity of the hydrobionts under consideration depends on their chemical structure, concentration, and algae taxonomic group. Nonylphenols (NPs) have shown greater toxicity than that of octylphenols (OPs) for all algae studied: the concentrations of NPs (EC 50) that induce 50% inhibition of the growth of microalgae are 1.5–3.3 times lower than EC 50 for OP (depending on the culture). It has been established that blue-green algae are more sensitive to alkylphenols, while green algae are less sensitive to them. The 20–30% stimulation of the growth of cyanobacteria of genus Microcystis was revealed in the presence of low NP and OP concentrations. Under stress conditions induced by alkylphenols, changes in the formation of photosynthetic pigments are observed and the stimulation of the synthesis of algotoxins and odorants (geosmin and 2-methylisoborneol) is possible. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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