Pythium spinosum Sawada 1926

Details

Name scientific

Pythium spinosum Sawada in Sawada & Chen, Transactions of the Natural History Society of Formosa 16 199 (1926)

Preferred name

Globisporangium spinosum (Sawada) Uzuhashi, Tojo & Kakish. 2010

Nomenclature

Authors

Sawada

Original authors

Sawada

Publication place

Sawada, K.; Chen 1926: Transactions of the Natural History Society of Formosa 16

Year published

1926

Publication page

199

Nomenclatural code

ICN

Basionym

Pythium spinosum Sawada 1926

Taxonomic rank

species

Canonical form

Pythium spinosum

Classification

Kingdom

Chromista

Phylum

Oomycota

Class

Oomycetes

Order

Peronosporales

Family

Pythiaceae

Genus

Pythium

Species

spinosum

Associations

View full associations record

Association type

Associated organism

Association source

has host

Aphelandra squarrosa Nees

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)

has host

Lactuca sativa L.

Karling, J.S. (1968)

has host

Aphelandra squarrosa Nees

Pennycook, S.R. (1989)

has host

Aphelandra squarrosa Nees

Robertson, G.I. (1973)

has host

Aphelandra squarrosa Nees

Robertson, G.I. (1980)

Descriptions

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) 2005: Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. 4. Fungal Diversity Press.

Pythium spinosum Sawada 1926

Description

Type: Radicicolous Fungi; Description: Colonies on corn meal agar cottony, aerial mycelium abundant, main hyphae 2–5 μm wide. Sporangia globose to subglobose, 12–27 μm in diameter, or ellipsoidal to limoniform, 12–32 × 7–22 μm, occasionally spiny. Oogonia terminal or intercalary, globose to subglobose, 12–25 μm in diameter, wall echinulate with digitate, straight or curved 4–7 μm long spines. Antheridia 1–2 per oogonium, monoclinous, occasionally diclinous. Oospores plerotic, 11–22 μm in diameter.

Distribution

Distribution: Northland, Waikato, Hawkes Bay.; 1st Record: Robertson (1973a).

Notes

Pathogenicity

Significance: Minor. Frequently isolated from diseased roots (Robertson 1973a).; Host(s): Aphelandra squarrosa, Boronia megastigma, Ceanothus sp., Chamaecyparis lawsoniana, Cytisus scoparius, Erica sp., Eucalyptus cinerea, Fuchsia ×hybrida, Grevillea sp., Hebe odora, Leucadendron sp., Pseudopanax sp., Thujopsis dolabrata.