Phoma pomorum Thüm. 1879 [1878]

Details

Name scientific

Phoma pomorum Thüm., Fung. Pomic. 105 (1879 [1878])

Preferred name

Didymella pomorum (Thüm.) Q. Chen & L. Cai 2015

Taxonomy reference

Chen, Q.; Jiang, J.R.; Zhang, G.Z.; Cai, L.; Crous, P.W. 2015: Resolving the Phoma enigma. Studies in Mycology 82: 137-217.

Nomenclature

Original authors

Thüm.

Authors

Thüm.

Publication place

Thümen, F.K.A.E.J. von (ed) 1879[1878]: Fungi Pomicoli. Wilhelm Braumüller.

Year published

1879

Year on publication

1878

Publication page

105

Nomenclatural code

ICN

Basionym

Phoma pomorum Thüm. 1879 [1878]

Taxonomic rank

species

Canonical form

Phoma pomorum

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Dothideomycetes

Order

Pleosporales

Family

Didymellaceae

Genus

Phoma

Species

pomorum

Associations

View full associations record

Association type

Associated organism

Association source

has host

Astelia

Anonymous (2005)

has host

Prunus armeniaca L.

Blackmore, J.C. (1894)

has host

Prunus ×domestica L.

Brien, R.M. (1939)

has host

Malus ×domestica Borkh.

Cunningham, G.H. (1921)

has host

Malus ×domestica Borkh.

Cunningham, G.H. (1925)

has host

Malus ×domestica Borkh.

Dingley, J.M. (1969)

has host

Malus ×domestica Borkh.

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

has host

Prunus armeniaca L.

Kirk, T.W. (1895)

has host

Prunus persica (L.) Batsch

Kirk, T.W. (1904)

has host

Prunus salicina Lindl.

Kirk, T.W. (1906)

has host

Malus ×domestica Borkh.

Kirk, T.W. (1907)

has host

Malus ×domestica Borkh.

Pennycook, S.R. (1989)

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.

Phoma pomorum Thüm. 1879 [1878]

Description

Type: Foliicolous Fungi; Description: Conidiomata pycnidial, scattered, subepidermal becoming erumpent, ovoid, rusty brown to black, ostiolate; on spots on leaves or fruit. Conidia cylindrical or ellipsoid, straight to slightly curved, 5–8 × 2–3 μm, smooth, hyaline.

Distribution

Distribution: Northland, Auckland, Waikato, Bay of Plenty, Wanganui, Wairarapa, Nelson, Mid Canterbury, Central Otago.; 1st Record: Blackmore (1894).

Notes

Pathogenicity

Significance: A common cause of leaf spot and fruit spot of apples and occasionally on leaves of peaches and plums. It is of minor economic importance.; Host(s): Malus ×domestica, Prunus armeniaca, P. avium, P. ×domestica, P. dulcis, P. persica, P. persica var. nucipersica, P. salicina.

Johnston, P.R. 1981: Phoma on New Zealand grasses and pasture legumes. New Zealand Journal of Botany 19(2): 173-186.

Phoma pomorum Thüm. 1879 [1878]

Collections Examined

REPRESENTATIVE CULTURES: PDDCC 6633, 6634.

Description

COLONY MORPHOLOGY OA: Colonies 55-75 mm diam. after 7 days. Mycelium: cottony, dense with an uneven, tufted surface, pale to dark olivaceous at centre, white at edge. Reverse; grey or saffron. ME: Colonies 64-70 mm. Mycelium; dense, cottony, even in height; dark, occasionally pale, olivaceous. Reverse; dark olivaceous. CHLAMYDOSPORES: Solitary or in long chains or as dictyochlamydospores. They may take several weeks to appear and the number present varies between isolates. CONIDIA: Uniform in shape, oblong with rounded ends. (4.5-)5.5-8(-11) x 2-3(-4.5) µm.

Habitat

OCCURRENCE: Plurivorous saprophyte.