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 (ăn′tē-bī-ō′sĭs, ăn′tī-)
1. An association between two or more organisms that is detrimental to at least one of them.
2. The antagonistic association between an organism and the metabolic substances produced by another.


(Biology) an association between two organisms, esp microorganisms, that is harmful to one of them


(ˌæn ti baɪˈoʊ sɪs, ˌæn taɪ-)

an association between organisms that is injurious to one of them.


a relationship or association between two or more organisms that is harmful to one of them. Cf. symbiosis.
See also: Organisms
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antibiosis - an association between organisms that is harmful to one of them or between organisms and a metabolic product of another
association - (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species
References in periodicals archive ?
Broadly, two types of suppression to soil-borne plant root disease have been described: (i) general suppression in a soil is characterised by heightened overall microbial activity and a concomitant reduction in competitiveness and infectivity of the pathogen, and (ii) specific suppression is attributed to the increased occurrence of a particular organism or organisms that act via several avenues (antibiosis, antifungal, parasitism and predation) to inhibit growth of the pathogen and reduce disease incidence, or may promote plant root or shoot growth and thus reduce the effect of the pathogen (Baker 1968; Weller et al.
In this case, antibiosis might have resulted in the histologic absence of bacteria.
maculatus, pointing a possible resistance, since that when the insects demand a higher time for completing the immature stage, a non-preference resistance is suggested for feeding and/or antibiosis (Lara, 1991).
Trichoderma species are well-reported as biocontrol agents against several fungal pathogens through mechanisms such as mycoparasitism (mycelial coiling), antibiosis, cell wall degrading enzymes and induced resistance in host plant against diseases by altering plant gene expression (Pandya and Saraf, 2010; Alfano et al., 2007).
The mechanisms have long been categorized into 3 types: antixenosis, antibiosis, and tolerance (Painter 1951).
Curcumin is the main bioactive ingredient of turmeric that has tremendous medicinal importance like it has the preventive action against Alzheimer [20], also possesses antioxygenation, antibiosis and antitumor activities [25].
Previous work in this lab demonstrated antibiosis against bacteria, with greatest efficacy against respiratory pathogens.
Resistance may cause adverse effects to the insects (antibiosis) or make one plant less preferred than another for feeding (non-preference) (SMITH, 2005).