The Basidial Stage of Phymatotrichum omnivorum

Baniecki, John F.; Bloss, H. E.

doi:10.2307/3757489

Cited by 9 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a few cases, clavate or moniliform conidophores with apically borne conidia formed (Fig. 1l, m), similar in appearance to the ‘basidia’ observed previously (Baniecki & Bloss 1969). Examined herbarium specimens from FH of P. omnivorum possessed either characteristic hirsute mycelial cords (‘ Ozonium ’ stage) on cotton roots (GLH #2869 and GLH #2870) or crustose sporemats adhering to peds of black clay (GLH # 2868).…”

Section: Resultssupporting

confidence: 83%

“…Shear 5267, BPI 259732) from that of Ozonium omnivorum or Phymatotrichum omnivorum . Later, a corticioid homobasidiomycete fruiting body was discovered in a culture of Phymatotrichum omnivorum and identified as Sistotrema brinkmannii (Baniecki & Bloss 1969). Basidiospores of the Sistotrema failed to form the mycelium of Phymatotrichum , and Weresub & LeClair (1971) considered this report to be based on a homothallic culture contaminant.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molecular systematics of the cotton root rot pathogen, <I>Phymatotrichopsis omnivora</I>

Marek¹,

Hansen²,

Romanish³

et al. 2009

Pers - Int Mycol J

View full text Add to dashboard Cite

Cotton root rot is an important soilborne disease of cotton and numerous dicot plants in the south-western United States and Mexico. The causal organism, Phymatotrichopsis omnivora (= Phymatotrichum omnivorum), is known only as an asexual, holoanamorphic (mitosporic) fungus, and produces conidia resembling those of Botrytis. Although the corticoid basidiomycetes Phanerochaete omnivora (Polyporales) and Sistotrema brinkmannii (Cantharellales; both Agaricomycetes) have been suggested as teleomorphs of Phymatotrichopsis omnivora, phylogenetic analyses of nuclear small- and large-subunit ribosomal DNA and subunit 2 of RNA polymerase II from multiple isolates indicate that it is neither a basidiomycete nor closely related to other species of Botrytis (Sclerotiniaceae, Leotiomycetes). Phymatotrichopsis omnivora is a member of the family Rhizinaceae, Pezizales (Ascomycota: Pezizomycetes) allied to Psilopezia and Rhizina.

show abstract

Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Molecular systematics of the cotton root rot pathogen, <I>Phymatotrichopsis omnivora</I>

Marek¹,

Hansen²,

Romanish³

et al. 2009

Pers - Int Mycol J

View full text Add to dashboard Cite

show abstract

“…J. Erikss. (Baniecki and Bloss, 1969), but these were subsequently refuted (Dong et al ., 1981; Weresub and Leclair, 1971). Finally, the fungus was renamed Phymatotrichopsis omnivora (Duggar) Hennebert (1973) to reassert its mitosporic affinity to Botrytis ‐like species.…”

Section: Taxonomy and Life Cyclementioning

confidence: 99%

Phymatotrichum (cotton) root rot caused by Phymatotrichopsis omnivora: retrospects and prospects

Uppalapati

Young

Marek

et al. 2010

Molecular Plant Pathology

View full text Add to dashboard Cite

show abstract

“…T. brinkmannii is a saprophytic fungal species, widespread on wood and plant debris (Farr et al., ). Trechispora brinkmannii has been reported by Baniecki and Bloss () to be the teleomorph of Phymatotrichopsis omnivora , but this has been considered incorrect by Hennebert () and Dong et al. ().…”

Section: Introductionmentioning

confidence: 99%

“…The observation of hydnoid homobasidiomycete fruiting bodies on the plants infected by P. omnivorum has led to the misidentification of the sexual stage as Hydnum omnivorum Shear by Shear (). Later, Baniecki and Bloss () found a homobasidiomycete fruiting body in a culture of P. omnivorum and identified S. brinkmannii (Bres.) J. Erikss.…”

mentioning

confidence: 99%

Pest categorisation of Phymatotrichopsis omnivora

Bragard¹,

Dehnen‐Schmutz²,

Serio³

et al. 2019

EFS2

View full text Add to dashboard Cite

The Panel on Plant Health performed a pest categorisation of Phymatotrichopsis omnivora, the causal agent of Phymatotrichum root rot of more than 2,000 dicotyledonous plant species, for the EU. The pest is listed as Trechispora brinkmannii in Annex IAI of Directive 2000/29/EC. P. omnivora is a well‐defined fungal species and reliable methods exist for its detection and identification. It is present in south‐western USA, northern Mexico, Libya and Venezuela. The pest is not known to occur in the EU. P. omnivora has an extremely wide host range; quantitative impacts have been documented for Gossypium spp. (cotton), Medicago sativa (alfalfa), Malus domestica (apple), Prunus persica (peach) and Vitis vinifera (grapevine) as the major cultivated hosts. All major hosts and pathways of entry of the pest into the EU are currently regulated, except for soil and growing media attached or associated with plants originating in Libya. Host availability and climate and edaphic matching suggest that P. omnivora could establish in parts of the EU and further spread mainly by human‐assisted means. The pest infects the roots causing wilting and death of its host plants. The introduction of the pest in the EU territory would potentially cause direct and indirect impacts at least to cotton, alfalfa, apple, peach and grapevine production. The main uncertainties concern the host range, the extrapolation to the EU of the climatic and edaphic conditions favouring the disease in some of the infested areas, the role of conidia in the epidemiology of the disease and the magnitude of potential impacts to the EU. P. omnivora meets all the criteria assessed by EFSA for consideration as potential Union quarantine pest. The criteria for considering P. omnivora as a potential Union regulated non‐quarantine pest are not met, since the pest is not known to occur in the EU.

show abstract

The Basidial Stage of Phymatotrichum omnivorum

Cited by 9 publications

References 0 publications

Molecular systematics of the cotton root rot pathogen, <I>Phymatotrichopsis omnivora</I>

Molecular systematics of the cotton root rot pathogen, <I>Phymatotrichopsis omnivora</I>

Phymatotrichum (cotton) root rot caused by Phymatotrichopsis omnivora: retrospects and prospects

Pest categorisation of Phymatotrichopsis omnivora

Contact Info

Product

Resources

About