References [ 11 ]
Sekimoto S, Beakes GW, Gachon CMM, Müller DG, Küpper FC & Honda D (2008) The development, ultrastructural cytology, and molecular phylogeny of the Basal Oomycete Eurychasma dicksonii, infecting the filamentous Phaeophyte algae Ectocarpus siliculosus and Pylaiella littoralis. Protist 159: 299-318.
Gachon CMM, Strittmatter M, Müller DG, Kleinteich J & Küpper FC (2009) Detection of differential host susceptibility to the marine oomycete pathogen Eurychasma dicksonii by real-time PCR: Not all algae are equal. Applied and Environmental Microbiology 75(2): 32-328.
DOI: 10.1128/AEM.01885-08
Grenville-Briggs L, Gachon CMM, Strittmatter M, Sterck L & Kuepper FC (2011) A molecular insight into algal-oomycete warfare: cDNA analysis of Ectocarpus siliculosus infected with the basal oomycete Eurychasma dicksonii. PLoS ONE 6(9): e24500.
Zambounis A, Strittmatter M & Gachon CMM (2013) Chronic stress and disease resistance in the genome model marine seaweed Ectocarpus siliculosus. Aquatic Botany 104: 147-152.
Tsirigoti A, Kupper FC, Gachon CMM & Katsaros C (2013) Cytoskeleton organization during the infection of three brown algal species Ectocarpus siliculosus, Ectocarpus crouaniorum and Pylaiella littoralis by the intracellular, marine oomycete Eurychasma dicksonii. Plant Biology 1: 272-281.
DOI: 10.1111/plb.12041
Tsirigoti A, Beakes GW, Herve C, Gachon CMM & Katsaros C (2014) Attachment, penetration and early host defense mechanisms during the infection of filamentous brown algae by Eurychasma dicksonii. Protoplasma 252: 845-856.
Strittmatter M, Grenville-Briggs LJ, Breithut L, van West P, Gachon CMM & Küpper FC (2015) Infection of the brown alga Ectocarpus siliculosus by the oomycete Eurychasma dicksonii induces oxidative stress and halogen metabolism. Plant, Cell and Environment 39: 259-271.
DOI: 10.1111/pce.12533
Strittmatter M, Gachon CMM, Müller DG, Kleinteich J, Heesch S, Tsirigoti A, Katsaros C, Kostopoulou M & Küpper FC (2015) Intracellular eukaryotic pathogens in brown macroalgae in the Eastern Mediterranean, including LSU rRNA data for the oomycete Eurychasma dicksonii. Diseases of Aquatic Organisms 104: 1-11.
DOI: 10.3354/dao02583
Tsirigoti A, Küpper FC, Gachon CMM & Katsaros C (2013) Filamentous brown algae infected by the marine, holocarpic oomycete Eurychasma dicksonii. Plant Signaling & Behavior 8: e26367.
DOI: 10.4161/psb.26367
Fletcher KIG, van West P & Gachon CMM (2016) Nonagonal cadherins: A new protein family found within the Stramenopiles. Gene 593: 64-75.
Vallet M, Strittmatter M, Murúa P, Lacoste S, Dupont J, Hubas C, Genta-Jouve G, Gachon CMM, Kim GW & Prado S (2018) Chemically-Mediated Interactions Between Macroalgae, Their Fungal Endophytes, and Protistan Pathogens Frontiers in Microbiology 9: 3161.
Division/Phylum: Heterokontophyta/Ochrophyta Class: Oomycota
Note: for strains where we have DNA barcodes we can be reasonably confident of identity, however for those not yet sequenced we rely on morphology
and the original identification, usually made by the depositor. Although CCAP makes every effort to ensure the correct taxonomic identity of strains, we cannot guarantee
that a strain is correctly identified at the species, genus or class levels. On this basis users are responsible for confirming the identity of the strain(s) they receive
from us on arrival before starting experiments.
For strain taxonomy we generally use AlgaeBase for algae and
Adl et al. (2019) for protists.
Culture media, purity and growth conditions:
Medium:
Modified Provasoli - half strength;
Bacteria present; maintained by serial subculture; 9-15 deg C; lighting 2-10 µE.m-2.s-1 (higher intensities seem to inhibit propagation of Eurychasma)
| Attributes | |
| Authority | (E.P. Wright) Magnus |
| Isolator | Müller (2005) |
| Collection Site | intertidal Le Caro, Rade de Brest, Brittany, France |
| Notes | Isolation: Eurychasma was propagated in its original field host and contaminants were progressively removed by subculturing; This is an unialgal host culture - Eurychasma (an oomycete parasite of brown algae) is an obligate biotroph, i.e. it cannot grow outside its host. The host in which this strain is maintained is Macrocystis pyrifera CCAP 1323/1. The original host was Ectocarpus sp. CCAP 1310/299; Subculture every 2 weeks, transfer into new medium, with addition of some healthy host to ensure the propagation of the infection. |
| Axenicity Status | Bacteria present |
| Area | Europe |
| Country | France |
| Environment | Marine |
| GMO | No |
| In Scope of Nagoya Protocol | No |
| ABS Note | Collected pre Nagoya Protocol. No known Nagoya Protocol restrictions for this strain. |
| Collection Date | c 2005 |
| Original Designation | Eurychasma 2005 Caro |
| Pathogen | Not pathogenic: Hazard Class 1 |
| Strain Maintenance Sheet | SM_Eurychasmadicksonii.pdf |
| Toxin Producer | Not Toxic / No Data |
| Type Culture | No |
| Taxonomy WoRMS ID | 172155 |
| Synonyms | Rhizophydium dicksonii |
CCAP 4018/1
Eurychasma dicksonii
- Product Code: CCAP 4018/1
- Availability: See Availability/Lead Times
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