Phytophthora lateralis Tucker & Milbrath 1942

Details

Name scientific

Phytophthora lateralis Tucker & Milbrath, Mycologia 34 97 (1942)

Preferred name

Phytophthora lateralis Tucker & Milbrath 1942

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Recorded in error

New Zealand

Political Region

Comment: Robertson (1982) records P. lateralis as a pathogen of kiwifruit. However, HM Dance (pers. comm. to RE Beever, 13 Sept 2005) indicated that GI Robertson imported a culture of P. lateralis that was used at the Mt Albert Research Centre for experiments to determine the susceptibility of kiwifruit to this pathogen; and he believes P. lateralis in NZ is only known from these experiments. GI Robertson’s strain books (stored in herb. PDD) confirm that strain “CMI40503” [= IMI 040503 = CBS 168.42 from Chamaecyparis] was imported c.1970-77. Perusal of Robertson (1982) implies it is present in the field kiwifruit population. However, it was not reported by Stewart & McCarrison (1991) in their study of kiwifruit Phytophthora species. This species is otherwise known from conifers, primarily as a virulent pathogen of Chamaecyparis lawsoniana in Oregon (Erwin & Ribeiro 1996). While this host is common in NZ, this species has not been reported from it (Gadgil 2005). Gadgil (2005) lists this species from Northland and from Auckland. We have been unable to confirm the basis of the Northland listing. We conclude the record is doubtful and the species should be considered as not present in New Zealand for quarantine purposes.

Nomenclature

Original authors

Tucker & Milbrath

Authors

Tucker & Milbrath

Publication place

Tucker, C.M.; Milbrath, J.A. 1942: Root rot of Chamaecyparis caused by a species of Phytophthora. Mycologia 34(1): 94-103.

Year published

1942

Publication page

Nomenclatural code

ICN

Basionym

Phytophthora lateralis Tucker & Milbrath 1942

Type locality

USA

Taxonomic rank

species

Canonical form

Phytophthora lateralis

Classification

Kingdom

Chromista

Phylum

Oomycota

Class

Oomycetes

Order

Peronosporales

Family

Peronosporaceae

Genus

Phytophthora

Species

lateralis

Associations

View full associations record

Association type

Associated organism

Association source

has host

Actinidia deliciosa (A.Chev.) C.F.Liang & A.R.Ferguson

Brook, P.J.

has host

Actinidia deliciosa (A.Chev.) C.F.Liang & A.R.Ferguson

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

has host

Actinidia deliciosa (A.Chev.) C.F.Liang & A.R.Ferguson

Miller, J.T.; Knowles, F.B. (1990)

has host

Actinidia deliciosa (A.Chev.) C.F.Liang & A.R.Ferguson

Pennycook, S.R. (1989)

has host

Actinidia deliciosa (A.Chev.) C.F.Liang & A.R.Ferguson

Robertson, G.I. (1982)

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.

Phytophthora lateralis Tucker & Milbrath 1942

Description

Type: Radicicolous Fungi; Description: Colonies on agar with little or no aerial mycelium. Chlamydospores abundant, terminal or intercalary, 20–77 μm in diameter. Sporangia borne sym-podially, ovate to obpyriform to elongate or distorted in shape, 20–60 × 12–20 μm, papillate. Oogonia globose, 30–50 μm in diameter, smooth. Antheridia paragynous. Oospores plerotic, 28–46 μm in diameter, deeply pigmented.

Distribution

Distribution: Northland, Auckland.; 1st Record: Robertson (1982).

Notes

Pathogenicity

Significance: Mildly pathogenic to Actinidia deliciosa growing on heavy, compacted soils (Robertson 1982).; Host(s): Actinidia deliciosa.