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Related to haustoria: 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 ?
Dodder twines around stems, uses numerous small haustoria to penetrate the tissues of the host plants, and feeds from the vascular system.
reflexa from Asia that Albert studies; instead, it gets its skinny little haustoria whipped.
Once a dodder plant makes contact with a host, it quickly coils repeatedly around the stem, and through the use of numerous haustoria, penetrates the plant.
and acetic acid bacteria that showed reduction in Striga haustoria may be due to production of catalase enzyme.
The parasite seedlings then infect the nearby host roots forming haustoria on them.
In order to penetrate the host vascular tissue, the dodder seedling then produces specialized structures called haustoria, which form direct connections with the phloem and xylem (Birschwilks et al.
DMBQ applied to Striga germilings resulted from seeds previously conditioned in water and GR24 induced 70% haustoria (Figure 10).
Haustoria in Castilleja are small (less than 1 mm in diameter) and are not as invasive or penetrating as haustoria of other parasitic flowering plants.
In novice learners, for example, reasoning about the dodder's haustoria is typically different from reasoning about penguin wings, whereas for experts it is not.
Subsequent to germination, which occurs in close proximity of the host roots, Striga germlings, in response to a second chemical signal from the host roots, produce haustoria.