Suthaus, Andreas ; Hess, Sebastian (2024)
The vampyrellid amoeba Strigomyxa ruptor gen. et sp. nov. and its remarkable strategy to acquire algal cell contents.
In: Ecology and Evolution, 2024, 14 (8)
doi: 10.26083/tuprints-00028304
Article, Secondary publication, Publisher's Version
Text
ECE3_ECE370191.pdf Copyright Information: CC BY 4.0 International - Creative Commons, Attribution. Download (15MB) |
Item Type: | Article |
---|---|
Type of entry: | Secondary publication |
Title: | The vampyrellid amoeba Strigomyxa ruptor gen. et sp. nov. and its remarkable strategy to acquire algal cell contents |
Language: | English |
Date: | 4 November 2024 |
Place of Publication: | Darmstadt |
Year of primary publication: | August 2024 |
Publisher: | John Wiley & Sons |
Journal or Publication Title: | Ecology and Evolution |
Volume of the journal: | 14 |
Issue Number: | 8 |
Collation: | 15 Seiten |
DOI: | 10.26083/tuprints-00028304 |
Corresponding Links: | |
Origin: | Secondary publication DeepGreen |
Abstract: | The vampire amoebae (Vampyrellida, Rhizaria) inhabit freshwater, marine, and terrestrial ecosystems and consume a wide range of eukaryotic prey. This includes diverse microalgae, fungi, and microscopic animals. One of the most captivating aspects of the vampyrellids is their ability to extract the cell contents of other eukaryotes after local dissolution of the prey cell wall, a feeding strategy that occurs in several vampyrellid families, but is best studied in Vampyrella species that attack zygnematophyte green algae. Here, we report two new vampyrellid strains from temperate moorlands in Germany with a yet‐undescribed feeding strategy: internal protoplast extraction and cell wall regurgitation. This feeding strategy involves the phagocytosis of whole desmid cells (genus Closterium, Zygnematophyceae), internal cleavage of the algal cell wall, extraction of the cell contents, and subsequent exocytosis of bundled empty cell walls. The large primary food vacuole formed during the process has exceptional functions, as it forms internal feeding pseudopodia, packages algal cell contents into smaller secondary vacuoles, and transforms into a "waste vacuole" with cell wall remnants. The new feeding strategy, which – in the widest sense – is reminiscent of the pellet casting of owls, reveals a stunningly sophisticated behavior of single protist cells. Based on morphological, phylogenetic, and autecological data, both vampyrellid strains are nearly identical and here assigned to a new and quite unique vampyrellid taxon, Strigomyxa ruptor gen. et sp. nov. (Leptophryidae, Vampyrellida). |
Uncontrolled Keywords: | algae, amoebae, Cercozoa, Endomyxa, Rhizaria, Zygnematophyceae |
Identification Number: | Artikel-ID: e70191 |
Status: | Publisher's Version |
URN: | urn:nbn:de:tuda-tuprints-283042 |
Classification DDC: | 500 Science and mathematics > 570 Life sciences, biology |
Divisions: | 10 Department of Biology > Biology of Algae and Protozoa |
Date Deposited: | 04 Nov 2024 13:08 |
Last Modified: | 07 Nov 2024 08:52 |
SWORD Depositor: | Deep Green |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/28304 |
PPN: | 52322592X |
Export: |
View Item |