Diversity of algal species present in waste stabilisation ponds and different factors affecting its enrichment and phototaxis
| Autor: | Swati Dahiya, Pradeep Kumar, Gowtham Balasundaram, Aparajita Shilpie, Raja Chowdhury, Arun Kumar Mishra |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
021110 strategic
defence & security studies Ecology biology Algal species musculoskeletal neural and ocular physiology fungi 0211 other engineering and technologies food and beverages macromolecular substances 02 engineering and technology 010501 environmental sciences biology.organism_classification 01 natural sciences nervous system Algae Metagenomics Phototaxis General Earth and Planetary Sciences Sewage treatment Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Chemistry and Ecology. :1-15 |
| ISSN: | 1029-0370 0275-7540 |
| Popis: | Several algal species were found in the samples collected from a wastewater treatment plant located in Uttarakhand, India. Several media and their modifications were employed to understand the role of these elements and compounds in the species composition and proliferation. Euglena, Chlamydomonas-reinhardtii, Chlorella-sorokiniana, Chlorococcum, several diatoms and cyanobacteria were found in the wastewater samples. In stagnant and flowing municipal wastewater, Euglena, Chlorococcum, cyanobacteria and Volvox were predominant. In a bold basal medium, Scenedesmus and several diatom species were observed along with Chlorococcum. In the presence of acetate Selenastrum species were abundant. Metagenomic analysis of wastewater collected during winter revealed that Tetradesmus wisconsinensis (21.23%) and Actinastrum hantzchii (11.48%) were the dominant species. Some cyanobacterial species accumulated near the high-intensity light region. Hence, subsequent phototaxis experiments were performed. Under the white light, most species showed positive phototaxis. However, under the blue and red light, all the algal species present in the sample showed negative phototaxis. Under the green light, Chlorococcum and Chlamydomonas showed positive phototaxis and Euglena showed negative phototaxis. However, under the pink light, neither negative nor positive phototaxis was observed. Hence, the obtained results provided new insights into the effects of the studied parameters on the species’ diversity and proliferation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|