References [ 7 ]
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.
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.
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, 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.
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.
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.
Sequences [ 2 ]
EMBL/Genbank Links
(Bold text = submission by CCAP staff or collaborators)
28S
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 °C; 2-10 µE.m-2.s-1 (higher light intensities seem to inhibit propagation)
Attributes
Authority(E.P. Wright) Magnus
IsolatorGachon (2006)
Collection Siteintertidal Dunstaffnage, Oban, Scotland
Climatic Zone Temperate
Notes Isolation: a Eurychasma-infected Ectocarpus individual was collected, and a clonal isolate of the alga (still infected with Eurychasma) was obtained. Eurychasma is a brown alga parasite; original field host = CCAP 1310/300 Ectocarpus sp. The host in which this strain is maintained is Macrocystis pyrifera CCAP 1323/1; Subculture every 2 weeks, transfer into new medium with addition of some healthy host to ensure the propagation of the infection. Algal cultures used for Eurychasma inoculation must have been grown for 2-3 weeks in liquid medium.
Axenicity Status Bacteria present
Area Europe
Country UK
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 2006
Original Designation Eurychasma Oban 06-29-7
Pathogen Not pathogenic: Hazard Class 1
Strain Maintenance Sheet
Toxin Producer Not Toxic / No Data
Type Culture No
Taxonomy WoRMS ID 172155
Synonyms Rhizophydium dicksonii

CCAP 4018/3

Eurychasma dicksonii


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