Systematics Collections Data

ICMP 3869 – Pseudopithomyces toxicarius B.S. Weir, D. Lee, J.S. Sidhu & C.R. Voisey

Data provider:
International Collection Of Microorganisms
Barcode:
ICMP 3869
Culture type:
Fungal Culture
Database record added:
25 January 2002
Database record updated:
14 July 2025
Components
Primary component
Active identification
Determined name:
Pseudopithomyces toxicarius B.S. Weir, D. Lee, J.S. Sidhu & C.R. Voisey
Determiner:
B.S. Weir
Identification date:
2025-05-09 (Verbatim: 9 May 2025)
Preferred name:
Pseudopithomyces toxicarius B.S. Weir, D. Lee, J.S. Sidhu & C.R. Voisey
Division:
Ascomycota
Class:
Dothideomycetes
Order:
Pleosporales
Family:
Didymosphaeriaceae
Identification type:
Determination
Note:
ITS sequence
Associations:
isolated from Paspalum dilatatum Poir.
Other identifications
Identification
Determined name:
Pseudopithomyces sp. nov. NZ B.S. Weir ined.
Determiner:
B.S. Weir
Identification date:
2022-10-27 (Verbatim: 27 Oct 2022)
Preferred name:
Pseudopithomyces toxicarius B.S. Weir, D. Lee, J.S. Sidhu & C.R. Voisey
Active:
no
Identification type:
Determination
Note:
ITS sequence
Identification
Determined name:
Pithomyces chartarum
Determiner:
Identification date:
Preferred name:
Pseudopithomyces chartarum (Berk. & M.A. Curtis) J.F. Li, Ariyawansa & K.D. Hyde
Active:
no
Identification type:
Received as
Identification
Determined name:
Pithomyces chartarum (Berk. & M.A. Curtis) M.B. Ellis
Determiner:
Identification date:
Preferred name:
Pseudopithomyces chartarum (Berk. & M.A. Curtis) J.F. Li, Ariyawansa & K.D. Hyde
Active:
no
Identification type:
Determination
Other components
Active identification
Determined name:
Paspalum dilatatum Poir.
Determiner:
Identification date:
Preferred name:
Paspalum dilatatum Poir.
Division:
Tracheophyta
Class:
Liliopsida
Order:
Poales
Family:
Gramineae
Identification type:
Determination
Part affected:
Plant debris
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Mount Albert
Georeferences:
Latitude and Longitude (WGS84):  -36.884  174.716 
Verbatim locality:
Mount Albert
Verbatim collector:
J.M. Dingley
Standardised collector:
Joan M. Dingley
Verbatim date:
20 May 1959
Start date:
1959-05-20
Country:
New Zealand
New Zealand Area Codes:
Auckland
Native lands:
Ngāi Tai ki Tāmaki
Ngāti Maru (Hauraki)
Ngāti Paoa
Ngāti Tamaoho
Ngāti Tamaterā
Ngāti Whātua
Ngāti Whātua o Ōrākei
Te Ākitai Waiohua
Te Kawerau a Maki
Georeferences:
Latitude and Longitude (WGS84):  -36.884  174.716 
Culture flags
Price Category:
Category 1  (ref culture)
Culture notes
Strain Data:
Isolate S73a was isolated from a sporing colony on debris of Paspalurn dilatatum (May 1959, Mount Albert, Auckland). Like isolate C optimum growth was obtained between 25-28 C but the cultures were light coloured with more superficial floccose mycelium. Dark chlamydospores and dark verrucose mycelium were commonly produced. Conidia were formed in small clusters in among the floccose superficial mycelium; conidia (21-29 x 9.5-13 um) were muriform with 2 but more usually 3, transverse septa. High Sporidesmin production
Dingley et al., 1962
Strain Data:
produces sporidesmin toxin
Park, Parkes, Beever, 1995
Strain Data:
Dingleys old fax correspondance on ICMP 3869 (strain S73a)"...it will be seen that the isolate strain C is more stable in its behaviour in culture than the field isolate 73a. Although hyphal fusion is not uncommon in both isolates, nuclear number in mycelium in strain C never exceeds 2 in number whiles in S73a it is very erratic and can vary from a single nucleus to up to 8 in number within a single hyphal cell. No doubt this can explain the unstable behaviour of S73 in culture during successive transfers. Each evidence implies that most field isolates, anyway, of P. chartarum behave in culture as heterokargons and as a result are unstable in their behaviour"
External links
GenBank:

OR691733 - genomic DNA

Literature:

Dingley, J. M.; Done, J.; Taylor, A.; Russell, D. W. (1962)The Production of Sporidesmin and Sporidesmolides by Wild Isolates of Pithomyces chartarum in Surface and in Submerged Culture.Journal of General Microbiology29(1)127-135. DOI: 10.1099/00221287-29-1-127

Thornton, R. H. (1963)Anti-fungal activity of fatty acids toPithomyces chartarum(Berk. & Curt.) M. B. Ellis and other fungi.New Zealand Journal of Agricultural Research6(6)469-483. DOI: 10.1080/00288233.1963.10420006

Culture events
Isolated:
Date:
20 May 1959 (Verbatim: 20 May 1959)
Deposited:
Note:
Derived from earliest batch date
Actioned by:
Joan M. Dingley (Reference number S73A)
Date:
01 April 1974 (Verbatim: 01 Apr 1974)
Duplicates
Ross Beever: REB 641-1
Direction:
Sent
Assigned reference numbers
PDDCC:
PDDCC 3869
Permissions
Project permits
Project title:
Local Contexts - ICMP Culture Collection
Reference:
ICMP Collection - Local Contexts
Biocultural (BC) Notice