In botany and mycology, a haustorium (plural haustoria) is a rootlike structure that grows into or around another structure to absorb water or nutrients. For example, in mistletoe or members of the broomrape family, the structure penetrates the host's tissue and draws nutrients from it.

haustorium, highly modified stem or root of a parasitic plant or a specialized branch or tube originating from a hairlike filament (hypha) of a fungus. The haustorium penetrates the tissues of a host and absorbs nutrients and water.

在植物學和真菌學中，吸器（英語： Haustorium ）是一種根狀結構，生長在另一個結構中或周圍以吸收水分或養分。 例如，在 槲寄生 或掃帚草家族的成員中，這種結構會穿透宿主的組織並從中吸取營養。

Parasitic plants thrive by infecting other plants. Flowering plants evolved parasitism independently at least 12 times, in all cases developing a unique multicellular organ called the haustorium that forms upon detection of haustorium-inducing factors derived from the host plant.

寄生植物 是指植物的整個或部分生命週期，其 營養 乃全部或部分來自其他 植物 （寄主植物）者。 寄生植物具特化的根，稱作 吸器 （haustorium），會穿過 宿主 的組織達到 木質部 、或 韌皮部，或二者皆有以吸取水份及養份。 目前已發現營寄生的 開花植物 大約有19科，4,100種 [1]。 寄生植物具有下列的特性： 1a. 專性寄生 （obligate parasite）——當寄生物沒有宿主時便無法完成其生活史者。 1b. 兼性寄生 （facultative parasite）——當沒有宿主時，寄生物仍可以完成其生 …

Oct 1, 2018 · Despite multiple independent origins, a common feature to parasitism is the formation of an invasive organ termed the haustorium. Parasitic plants form haustoria in their stems or roots and use this structure to penetrate host tissues and form vascular connections, often with distantly related species.

Aug 28, 2022 · The haustorium, a specialized infection structure, is the key organ for biotrophic fungal pathogens. The haustorium is not only essential in the uptake of nutrients without killing the host, but also in the secretion and delivery of effectors into the host cells to manipulate host immune system and defense responses and reprogram the metabolic ...

The meaning of HAUSTORIUM is a nutrient-absorbing outgrowth of a fungus or parasitic plant that penetrates the tissues of the host organism.

The haustorium is a location of extensive vitamin B synthesis and mediates the suppression of host defense and cell death (the latter possibly by targeting the host bax inhibitor). A reduction of Hechtian strands around the penetration site might contribute to reduced cell-wall-associated defense responses.

Feb 10, 2021 · Parasitic flowering plants are characterized by the development of an organ known as haustorium, which has evolved in multiple independent angiosperms clades. The haustorium has also been deemed “the most plastic of organs” due to its ability to accommodate physiological and anatomical differences between the parasite itself and its host ...