Pythium coloratum Vaartaja 1965

Caption:

Details

Name scientific

Pythium coloratum Vaartaja, Mycologia 57 417 (1965)

Preferred name

Pythium coloratum Vaartaja 1965

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Exotic

Present

New Zealand

Political Region

Anon

Nomenclature

Authors

Vaartaja

Original authors

Vaartaja

Publication place

Vaartaja, O. 1965: New Pythium species from South Australia. Mycologia 57(3): 417-430.

Year published

1965

Publication page

417

Nomenclatural code

ICN

Basionym

Pythium coloratum Vaartaja 1965

Type locality

Australia

Taxonomic rank

species

Canonical form

Pythium coloratum

Classification

Kingdom

Chromista

Phylum

Oomycota

Class

Oomycetes

Order

Peronosporales

Family

Pythiaceae

Genus

Pythium

Species

coloratum

Associations

View full associations record

Association type

Associated organism

Association source

has host

Allium cepa L.

Fullerton, R.A.; Stewart, A.; Hale, C.N.; Wood, R.J. (1986)

has host

Persea americana Mill.

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

has host

Medicago sativa L.

Hawthorne, B.T. (1988)

has host

Allium cepa L.

Pennycook, S.R. (1989)

has host

Allium cepa L.

Robertson, G.I. (1976)

has host

Persea americana Mill.

Robertson, G.I. (1977)

has host

Allium cepa L.

Robertson, G.I. (1980)

has host

Trifolium pratense L.

Robertson, G.I. (1982)

has host

Trifolium repens L.

Skipp, R.A.; Christensen, M.J. (1982)

isolated from

Daucus carota var. sativus (L.) Schübl. & G.Martens

ICMP (1 records from New Zealand.)

isolated from

Pastinaca sativa L.

ICMP (1 records from New Zealand.)

has host

Daucus carota var. sativus (L.) Schübl. & G.Martens

PDD (1 records from New Zealand.)

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 coloratum Vaartaja 1965

Description

Type: Radicicolous Fungi; Description: Colonies on corn meal agar submerged, no aerial mycelium, main hyphae up to 10 μm wide. Sporangia filamentous, similar to vegetative hyphae, 300 μm or more in length. Oogonia globose to subglobose, mostly terminal, 12–22 μm in diameter. Antheridia 1–2 per oogonium, mostly diclinous. Oospores aplerotic, 10–18 μm in diameter, with a characteristic lilac-coloured wall.

Distribution

Distribution: Northland, Auckland, Bay of Plenty, Rangitikei, Wellington, Hawkes Bay.; 1st Record: Robertson (1976).

Notes

Pathogenicity

Significance: Frequently isolated from diseased roots and damped-off seedlings. Reported as moderately pathogenic to roots of vegetable seedlings (Robertson 1976).; Host(s): Persea americana.