Protists associated to the root system of plants under arid and hyper arid conditions
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| Title: | Main Title: Protists associated to the root system of plants under arid and hyper arid conditions |
| Description: | Abstract: The small size of protists and their ability to form cysts allow their association to plants as well as to soil habitats even in extremely arid systems. Only a few plants, animals, and microbes managed to adapt to the extremely harsh environment of Atacama and Namib Desert. Biologists were puzzled, how living organisms could have adapted to survive in such a dry desert habitats. Nevertheless, our preliminary studies in these deserts revealed the presence of protists, such as colpodid ciliates, and Nematodes associated to the root system of endemic plants. Preliminary studies of protist diversity from cacti and several endemic grasses will be shown. Strong fragmentation of plant populations might cause a strong fragmentation also of associated heterotrophic eukaryote populations. Two ciliates from Atacama Desert and Namib Desert were isolated and sequenced. The sequence analysis revealed a classification to the genus Colpoda. A morphologic and phylogenetic analysis supported this finding and underlined the classification for one species with about 100% molecular identity (rDNA) to Colpoda steinii. The other species from the Namib was closely related to Colpoda cucullus, but showed a remarkable difference to the original sequence (p-value 1.2) and to Colpoda inflata but showed a remarkable difference to the original sequence (p-value 0.6) indicating that this widely distributed morphospecies might possess a hidden molecular (and probably ecological) diversity. The analysis of protists adapted to the specific belowground interactions of bacteria and root systems of endemic desert plants may form a model system allowing an analysis of dynamics of evolutionary processes in future. |
Responsible Party
| Creator: | Lukas Neuhaus (Author) |
| Publisher: | CRC1211 Database (CRC1211DB) |
| Publication Year: | 2019 |
Topic
| CRC1211 Topic: | Biology |
| Related Subproject: | B3 |
| Subject: | Keyword: Biodiversity |
| Geogr. Information Topic: | Biota |
File Details
| Filename: | Neuhaus.pdf |
| Data Type: | Text - Text |
| File Size: | 451 KB |
| Date: | Available: 25.07.2014 |
| 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 |
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Specific Information - Report
| Report Date: | 25th of July, 2014 |
| Report Type: | Bachelor Thesis |
| Report City: | Cologne |
| Report Institution: | University of Cologne |
Metadata Details
| Metadata Creator: | Frank Nitsche |
| Metadata Created: | 25.10.2019 |
| Metadata Last Updated: | 25.10.2019 |
| Subproject: | B3 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 102 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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