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     Strain Information: 4018/2


Division/Phylum: Heterokontophyta    Class: Oomycota
Eurychasma dicksonii (E.P. Wright) Magnus
CCAP 4018/2
Isolator: Küpper & Müller (1996)
Origin: Marine; infecting epiphytic Pylaiella littoralis on Ascophyllum nodosum, Aith Voe, Bressay, Shetland, UK
Culture: Medium half strength Provasoli; Bacteria present; sub; 9-15 deg C; lighting 2-10 µE.m-2.s-1 (higher intensities seem to inhibit propagation of Eurychasma)
Other: Orig. desig. Eurychasma 1996; 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 deposited is Pylaiella littoralis (Pyl IR / CCAP 1330/3).; syn. Rhizophydium dicksonii;
Available Images (3):

References [8]  EMBL Links
Küpper FC, Maier I, Müller DG, Loiseaux-de Goer S & Guillou L (2006) Phylogenetic affinities of two eukaryotic pathogens of marine macroalgae, Eurychasma dicksonii (Wright) Magnus and Chytridium polysiphoniae Cohn. Cryptogamie Algologie 27: 165-184.
DOI: none

Küpper FC, Müller DG, Peters AF, Kloareg B & Potin P (2002) Oligoalginate recognition and oxidative burst play a key role in natural and induced resistance of sporophytes of Laminariales. Journal of Chemical Ecology 28: 2057-2081.
DOI: 10.1023/A:1020706129624

Küpper FC & Müller DG (1999) Massive occurence of the heterokont and fungal parasites Anisolpidium, Eurychasma and Chytridium in Pylaiella littoralis (Ectocarpales, Phaeophyceae). Nova Hedwigia 69: 381-389.
DOI: none

Müller DG, Küpper FC & Küpper H (1999) Infection experiments reveal broad host ranges of Eurychasma dicksonii (Oomycota) and Chytridium polysiphoniae (Chytridiomycota), two eukaryotic parasites in marine brown algae (Phaeophyceae). Phycological Research 47: 217-223.
DOI: 10.1111/j.1440-1835.1999.tb00301.x

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.
DOI: 10.1016/j.protis.2007.11.004

Müller DG, Gachon CMM & Küpper FC (2008) Axenic clonal cultures of filamentous brown algae: initiation and maintenance. Cahiers de Biologie Marine 49: 59-65.
DOI: none

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

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 -: -.
DOI: 10.1111/plb.12041

AB368178 (COX2)
FR696318 (LSU (28S))
AY032607 (SSU (18S))