oidium

See also: Oidium and oïdium

English

Grapes affected by Erysiphe necator

Etymology

From New Latin ōidium, from Ancient Greek ᾠόν (ōión, “egg”) +‎ -idium.

Noun

oidium (plural oidia)

1. A fragile spore produced by some fungi.
   • 2003 August, Competition Science Vision, page 802:

     • Oidia are hyaline, small and thin-walled unicellular sections or fragments of the mycelium.
     • Oidia may be uni- or binucleate as whether they are produced by the breaking up of the primary or secondary mycelium.

   • 2004, P.D. Sharma, The Fungi, page 241:

     However, in some forms mainly some Hymenomycetes it occurs by the formation of oidia. The oidia are of two main types.

   • 2006, A. V. S. S. Sambamurty, A Textbook of Plant Pathology, page 239:

     Later the pods become covered completely with white powdery mass composed of mycelium, oidiophores and oidia of the fungus.

2. The fungus Erysiphe necator (= Uncinula necator), which produces powdery mildew in grapes.

Coordinate terms

• conidium

Related terms

• oidial
• oidiomycosis
• oidiophore

 

Translations

fragile spore

• Ukrainian: ої́дія f (ojídija)

cognate translations of oidium — otherwise see powdery mildew

• Catalan: oïdi (ca) m
• French: oïdium (fr) m
• Italian: oidio m (1,2)
• Spanish: oídio m
• Ukrainian: ої́діум m (ojídium)

Romanian

Etymology

Borrowed from French oïdium.

Noun

oidium n (uncountable)

1. powdery mildew

Declension

declension of oidium (singular only)

	singular
n gender	indefinite articulation	definite articulation
nominative/accusative	(un) oidium	oidiumul
genitive/dative	(unui) oidium	oidiumului
vocative	oidiumule