obligate

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obligate

 [ob´lĭ-gāt]
not facultative; necessary; compulsory; pertaining to or characterized by the ability to survive only in a particular environment or to assume only a particular role, as an obligate anaerobe.

ob·li·gate

(ob'li-gāt),
Without an alternative system or pathway.
[L. ob-ligo, pp. -atus, to bind to]

obligate

/ob·li·gate/ (ob´lĭ-gāt) pertaining to or characterized by the ability to survive only in a particular environment or to assume only a particular role, as an obligate anaerobe.

obligate

(ŏb′lĭ-gāt′)
adj. (-gĭt, -gāt′)
Able to exist or survive only in a particular environment or by assuming a particular role: an obligate parasite; an obligate anaerobe.
n. (-gĭt, -gāt′)
An obligate organism.

ob′li·ga·ble (-gə-bəl) adj.
ob′li·gate·ly adv.
ob′li·ga′tor n.

obligate

[ob′ligit, -gāt]
Etymology: L, obligare, to bind
characterized by the ability to survive only in a particular set of environmental conditions, such as an obligate parasite, which can survive only within the host organism. Compare facultative.

obligate

adjective Necessarily; without alternative; required.

obligate

adjective Necessarily; without alternative

ob·li·gate

(ob'li-găt)
Without an alternative system or pathway.
[L. ob-ligo, pp. -atus, to bind to]

obligate

Able to survive only in a particular environment. Used especially of certain parasites.

obligate

(of an organism) being able to live only in one set of conditions. For example, obligate parasites such as the tapeworm require a host for completion of the life cycle; obligate aerobes such as man require atmospheric oxygen for respiration. Compare FACULTATIVE.

obligate

necessary, essential.

obligate accumulators
obligate carrier
the subject is always available as a carrier of the infection.
References in periodicals archive ?
The eastern group has a life history that includes an obligate metamorphosis, the Mexican assemblage contains species that are obligately paedomorphic (i.
Detection of bacteraemia was greatest on agar plates cultured anaerobically, although all bacteria isolated from blood samples were subsequently shown to be facultative anaerobes (Gram-positive cocci) and none was obligately anaerobic.
It is a large, obligately aerobic soil bacterium, which has one of the highest respiratory rates known among living organisms and is able to grow on a wide variety of carbohydrates, alcohols and organic acids.
the obligately intracellular bacterium of porcine proliferative enteropathy.
Korea Research Institute of Bioscience and Biotechnology (Taejon-si, South Korea) has patented a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1(Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1.
Normally, ground-foraging ants collect insects from the leaf litter and ants are not obligately dependent on myrmecochory, but adding the food resource of elaiosomes can increase a nest's production of gynes (virgin queens) (Morales and Heithaus 1998).
but is more obligately restricted to calcareous substrates, has a densely white pruinose upper cortex, and lacks zeorin.