rhizoid


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rhizoid

 [ri´zoid]
resembling a root.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

rhi·zoid

(rī'zoyd),
1. Rootlike.
2. Irregularly branching, like a root; denoting a form of bacterial growth.
3. mycology the rootlike hyphae of fungi that arise at the nodes of the hyphae of Rhizopus species.
[rhizo- + G. eidos, resemblance]
Farlex Partner Medical Dictionary © Farlex 2012

rhizoid

(rī′zoid′)
n.
A slender rootlike filament that grows from an alga, a fungus, or the gametophyte of a moss, liverwort, or fern, used for attachment and nourishment.
rhi′zoid′, rhi·zoi′dal (-zoid′l) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

rhi·zoid

(rī'zoyd)
1. Rootlike.
2. Irregularly branching, like a root; denoting a form of bacterial growth.
3. In fungi, the rootlike hyphae that arise at the nodes of the hyphae of Rhizopus species.
[rhizo- + G. eidos, resemblance]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

rhizoid

a hairlike structure that functions as a root in lower organisms such as certain fungi and mosses. Rhizoids are important in penetrating a substance, giving anchorage and absorbing nutrients.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
B: first stage of germination, with one rhizoid and a perpendicular first prothallial cell, 11 days.
Gametofito de Doryopteris triphylla (Pteridaceae, Polypodiopsida)
Rhizoids unicellular, emerging proximally from pericentral cells, separated by the wall of the parent cell.
New records of red algae (rhodophyta) for Cabezo reef, National Park Sistema Arrecifal Veracruzano, Gulf of Mexico
In both species, the basal cell second division produces a brownish rhizoid that emerges through the laesura, and forms the first initial filament cell (Fig.
Gametophyte morphology of Acrostichum aureum and A. danaeifolium (Pteridaceae)
But, in Chara rhizoids, the membrane-bound vesicles that are located close to the rhizoid apex appear to serve this function [ILLUSTRATION FOR FIGURE 1 OMITTED].
Gravitropism in the rhizoids of the alga Chara: a model system for microgravity research
cm= meristematic cell, r= rhizoid, zm= meristematic zone.
Desarrollo de los gametofitos de especies mexicanas de helechos de la familia Gleicheniaceae
The polarity-determination window is specified by a simple assay in which the spore position is changed by 180 [degrees] at various times after the initiation of germination by light, but before rhizoid emergence, and then the subsequent direction of rhizoid emergence and growth is recorded (Edwards and Roux, 1994).
The influence of gravity and light on developmental polarity of single cells of Ceratopteris richardii gametophytes
On the agar, colonies were yellow-orange, flat, rather small and had irregular edges (rhizoid) but some colonies were more rhizoid than others and had different sizes and shapes, non-adherent to the agar (Figure 3), translucent, pale yellow due to flexirubin type pigments but the color was of different intensities on Anacker and Ordal agar as described by Bernardet and Grimont (1989).
Isolation and characterization of Flavobacterium columnare (Bernardet et al. 2002) from four tropical fish species in Brazil/Isolamento e caracterizacao de Flavobacterium columnare de quatro especies de peixes tropicais no Brasil
Purity of isolated culture was confirmed by identification of white clear rhizoid shaped colony and also through microscopic observation using gram staining method.
Characterization and experimental infection of Flexibacter maritimus (Wakabayashi et al. 1986) in hatcheries of post-larvae of Litopenaeus vannamei Boone, 1931/Caracterizacao e infeccao experimental de Flexibacter maritimus em pos- larvas de Litopenaeus vannamei
vittata showed that spores germinated after eight days and they gave rise to a few cell filaments, and a rhizoid able to differentiate.
Mycorrhizal association in gametophytes and sporophytes of the fern Pteris vittata (pteridaceae) with Glomus intraradices
First division produces a rhizoid and a prothallial cell which cut perpendicularly (Fig.
Sporophyte morphology and gametophyte development of the fern Blechnum sprucei (Pteridophyta: Blechnaceae)
Microscopic examination of young, actively growing moulds was on the basis of structures bearing spores and on the spores themselves; presence or absence of septation, rhizoid or other tissues.
Distribution of bacteria and fungi in the earthworm Libyodrillus violaceous (Annelida: Oligochaeta), a native earthworm from Nigeria

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