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Related to haustorium: Appressorium, haustorial


n. pl. haus·to·ri·a (hô-stôr′ē-ə)
A specialized structure of a parasitic fungus or plant, used to absorb nutrients and water from the host plant.

[New Latin haustōrium, from Latin haustus, a drawing in, absorption, from past participle of haurīre, to draw up.]

haus·to′ri·al adj.


n, pl -ria (-rɪə)
(Plant Pathology) the organ of a parasitic plant that penetrates the host tissues and absorbs food and water from them
[C19: from New Latin, from Late Latin haustor a water-drawer; see haustellum]
hausˈtorial adj


(hɔˈstɔr i əm, -ˈstoʊr-)

n., pl. haus•to•ri•a (hɔˈstɔr i ə, -ˈstoʊr-)
1. a projection from the hypha of a fungus into the organic matter from which it absorbs nutrients.
2. the penetrating feeding organ of certain parasites.
[1870–75; < New Latin, = Latin haus-, variant s. of haurīre to scoop up, draw + -tōrium -tory2]
haus•to′ri•al, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.haustorium - a root-like attachment in parasitic plants that penetrates and obtains food from the host
plant process, enation - a natural projection or outgrowth from a plant body or organ
References in periodicals archive ?
The obligate parasites which require a host for maturation; hemi parasites which contain chlorophyll when mature (hence are photosynthetic) and obtain water, with its dissolved nutrients, by connecting to the host xylem via the haustorium, they can be grown to maturity without hosts.
Perhaps the water had been absorbed by early germination, typical of Panama Tall (Harries, 1981), but Oviedo does not mention the soft, sweet and very edible haustorium (or "apple") that would immediately identify a real coconut.
Such fruits were tied with nylon fiber to the twigs of guava plants (Psidium guajava) to allow the formation of the holdfast and the emergence of the haustorium.
Cell I subspherical, partially to entirely inserted within host's integument; thallus penetrating beneath integument with large haustorium (rhizomycelium).
The haustorium attaches, penetrates and establishes connection with the host xylem.
Structure and function of transfer cells in the sporophyte haustorium of Funaria hygrometrica Hedw.
This experiment was undertaken to investigate the effects of bacterial strains and isolates on in situ germination, haustorium initiation and penetration of intact sorghum roots.