Name and publication

Phytophthora rhizophorae Pires-Zottar, Jesus & Marano (2016)

Marano, Jesus AL, & Pires-Zottar. 2016. Phytophthora rhizophorae. Fungal Diversity 78: 196. in Li GJ, Hyde KD, and Zhao RL. et al. Fungal Diversity (2016) 78: 1. https://doi.org/10.1007/s13225-016-0366-9

Corresponding author: agosvm@hotmail.com

Nomenclature

Mycobank

MB 551607

from Marano et al. (2016)

Index Fungorum

IF 551607

Faces of fungi

FoF 01274

Etymology

refers to Rhizophora mangle, the substrate from where this species was isolated

Typification

Type: BRAZIL, São Paulo, Cananéia,”Parque Estadual da Ilha do Cardoso” (PEIC), 25°03′05″– 25°18′18″S; 47°53′48″–48°05′42″W, Perequê river (salinity 0.8 %), from leaves of Rhizophora mangle, on Sorghum sp. seeds, 30 Aug 2012, A.L. Jesus, C.L.A. Pires-Zottarelli & A.V. Marano (SP 466375, holotype)

Ex-type: CCIBt 4152, MMBF 09/15

Sequences of ex-type in original manuscript: Phytophthora sp. GHJ-2016a voucher CCIBt 4152 ITS rDNA KT886031, nrLSU KT886028

Paratype: Idem (SP 466374)

Ex-paratypes: CCIBt 4121, MMBF 08/15

Ex-type in other collections

(ET) CCIBt 4152, MMBF 09/15

Molecular identification

Voucher sequences for barcoding genes (ITS rDNA and COI) of the ex-type (see Molecular protocols page)

Phytophthora sp. GHJ-2016a voucher CCIBt 4152 ITS rDNA KT886031

Voucher sequences for Molecular Toolbox with seven genes (ITS, β-tub, COI, EF1α, HSP90, L10, and YPT1

(see Molecular protocols page) (In Progress)

Voucher sequences for Metabarcoding High-throughput Sequencing (HTS) Technologies [Molecular Operational Taxonomic Unit (MOTU)]

(see Molecular protocols page) (In Progress)

Sequences with multiple genes for ex-type in other sources

• NCBI: Phytophthora sp. CCIBt 4152
• EPPO-Q-bank: Phytophthora rhizophorae
• BOLDSYSTEMS: Phytophthora rhizophorae (barcoding COI & ITS)

Position in multigenic phylogeny with 7 genes (ITS, β-tub, COI, EF1α, HSP90, L10, and YPT1)

Clade clade:
a taxonomic group of organisms classified together on the basis of homologous features traced to a common ancestor
9a

Morphological identification

adapted from Marano et al. (2016)

Colonies and cardinal temperatures

Colony colony:
assemblage of hyphae which usually develops form a single source and grows in a coordinated way
morphology petaloid in PYGs culture medium. Optimum growth temperature 30°C and maximum 35°C.

Asexual phase

Sporangia nonpapillated or semipapillatesemipapillate:
pertaining to the production of shallow having papilla that are not well developed, shallow and less nipple-like than fully papillate structures
; persistentpersistent:
pertaining to sporangia that remain attached to the sporangiophore and do not separate or detach easily (cf. caducous)
; ovoidovoid:
egg-shaped, with the widest part at the base of the sporangium and the narrow part at the apex
to obpyriformobpyriform:
inversely pear-shaped, i.e. with the widest part at the point of attachment (cf. pyriform)
(35–58 μm long x 20–45 μm wide); basal plugbasal plug:
a plug protruding into a sporangium from the basal cross wall, separating it from the sporangiophore
present; internal (nested and extended) proliferationproliferation:
formation of a sporangium within an empty sporangium that has previously emitted zoospores (internal or nested) or after the sporangiophore has emerged from the empty sporangium (external)
; sporangiasporangia:
sac within which zoospores form, especially when water is cooled to about 10°C below ambient temperature; in solid substrates, sporangia usually germinate by germ tubes
produced in unbranched sporangiophores. Hyphal swellings spherical, globoseglobose:
having a rounded form resembling that of a sphere
, tubular, obpyriformobpyriform:
inversely pear-shaped, i.e. with the widest part at the point of attachment (cf. pyriform)
to irregular shape. ChlamydosporesChlamydospores:
an asexual spore with a thickened inner wall that is delimited from the mycelium by a septum; may be terminal or intercalary, and survives for long periods in soil
absent.

NOTE: Additional vesicle in sporangiasporangia:
sac within which zoospores form, especially when water is cooled to about 10°C below ambient temperature; in solid substrates, sporangia usually germinate by germ tubes
has not been observed in Phytophthora.

Sexual phase

Sterile.

Hosts and distribution

Distribution: South America (Brazil)
Substrate: leaves, seeds
Host: Rhizophora mangle (Rhizophoraceae), Sorghum sp. (Poaceae)

Retrieved June 28, 2018 from U.S. National Fungus Collections Nomenclature Database.

Additional references and links

 

• SMML USDA-ARS: Phytophthora rhizophorae
• EPPO Global Database: Phytophthora rhizophorae
• Forest Phytophthora of the world: Phytophthora rhizophorae
• CABI Digital Library: Phytophthora rhizophorae
• Encyclopedia of Life (EOL):  Phytophthora rhizophorae
• Index Fungorum (IF):  Phytophthora rhizophorae

 

• Google All Phytophthora rhizophorae
• Google Images Phytophthora rhizophorae
• Google Scholar Phytophthora rhizophorae

Fact sheet author

Z. Gloria Abad, Ph.D., USDA-APHIS-PPQ-S&T Plant Pathogen Confirmatory Diagnostics Laboratory (PPCDL), United States of America.