Investigations on cacti associated protists of the Atacama Desert
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| Title: | Main Title: Investigations on cacti associated protists of the Atacama Desert |
| Description: | Abstract: The harsh conditions dominating the Atacama Desert in northern Chile lead to speciation of endemic plants and isolation of plant populations due to water restriction. As plants form their own microbiome, it can be assumed that the restricted gene flow in isolated plant populations has an impact on the community of microorganisms. Within the microbiome, the paraphyletic group of heterotrophic protists account for a considerable fraction. Hypothetically, the evolution of new protist species associated to endemic plants is supported by their short generation time leading to rapid fixation of mutations and, thus, speciation. However, the prevalence of endemic protists associated to endemic plants has not yet been proven. In this study, thirteen different protist strains from three isolated cacti populations were investigated and morphologically and molecularly identified. Additionally, the strains were analysed in a phylogenetical context. Six cercozoan and four colpodid ciliates, as well as one Vahlkampfidea, one Phalansteriida and one Theacofilosea strain were isolated and described on the basis of morphological and molecular data. Several protists of the same species were not found on different plant species, supporting the idea of endemic protists associated to specific cacti. In addition, cosmopolitan species could be observed. The results of this study indicate, that potentially endemic protists exist in the Atacama Desert associated to cacti. To verify this hypothesis, the sampling effort should be intensified worldwide, especially in remote areas with isolated plant populations, like the Atacama Desert. |
Responsible Party
| Creator: | Victoria Fincke (Author) |
| Publisher: | CRC1211 Database (CRC1211DB) |
| Publication Year: | 2019 |
Topic
| CRC1211 Topic: | Biology |
| Related Subproject: | B3 |
| Subject: | Keyword: Biogeography |
| Geogr. Information Topic: | Biota |
File Details
| Filename: | FinckeBA.pdf |
| Data Type: | Text - Text |
| File Size: | 434 KB |
| Date: | Available: 24.07.2018 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Own Subproject |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. |
| Access Limitations: | According to the CRC1211DB data policy agreement. |
| Licence: | None |
Geographic
Specific Information - Report
| Report Date: | 24th of July, 2018 |
| Report Type: | Bachelor Thesis |
| Report City: | Cologne |
| Report Institution: | University of Cologne |
Metadata Details
| Metadata Creator: | Frank Nitsche |
| Metadata Created: | 24.10.2019 |
| Metadata Last Updated: | 24.10.2019 |
| Subproject: | B3 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 96 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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