TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The property, exhibited by growing parts of plants, of bending or turning in a particular manner under the influence of light.  2, record 1, English, - heliotropism

Record number: 1, Textual support number: 1 OBS

The most usual case(to which some restrict the term) is that of bending towards the light("positive heliotropism") ;that of bending away from it is distinguished as "negative heliotropism" or "apheliotropism"; that of taking a direction at right angles to it, as "transverse heliotropism" or "diaheliotropism".  2, record 1, English, - heliotropism

Record number: 1, Textual support number: 2 OBS

Term used at the Canadian Grain Commission.  3, record 1, English, - heliotropism

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Propriété des végétaux et des animaux inférieurs fixés de se tourner vers la lumière solaire (héliotropism positif) ou de s'en détourner (héliotropisme négatif).  2, record 1, French, - h%C3%A9liotropisme

Record number: 1, Textual support number: 1 OBS

Terme en usage à la Commission canadienne des grains.  3, record 1, French, - h%C3%A9liotropisme

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Fototropismo en el que la luz procede del sol.  2, record 1, Spanish, - heliotropismo

Record number: 1, Textual support number: 1 OBS

Fototropismo: en las plantas, movimiento inducido por la luz.  3, record 1, Spanish, - heliotropismo

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The turning of living cells toward or away from a food source.  1, record 2, English, - sitotropism

Record number: 2, Textual support number: 1 CONT

The single-celled animal most commonly studied by medical students is the paramecium, found in stagnant water.... Under the microscope these tiny animals are seen to possess the ability to respond to certain external stimuli such as light, heat, food, etc. These responses to stimuli are called tropisms, from the Greek word tropein, meaning to turn. Response to chemical action is called chemotropism; to light, heliotropism; to heat, thermotropism; to food, sitotropism; to electricity, electropism or galvanotropism; to touch, thigmotropism; to oxygen, oxytropism; to gravity, geotropism.... By sitotropism, or response to food, a cell has power not only to be attracted by food but also to select the kind of food best suited to its need by what we call selective absorption.  2, record 2, English, - sitotropism

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Tendance des cellules à être attirées ou repoussées par certains aliments nutritifs.  1, record 2, French, - sitotropisme

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Orientation response of... organisms in relation to chemical stimuli.  2, record 3, English, - chemotropism

Record number: 3, Textual support number: 1 CONT

... many ... kinds of tropism ... can be detected in the study of the habits of small animals. Stereotropism ..., hygrotropism ..., chemotropism [a reaction] to different chemical compounds ...  3, record 3, English, - chemotropism

Record number: 3, Textual support number: 2 CONT

An insect's behavior patterns are key to its survival. For the most part, these patterns are inherited and the instinctive reactions they produce are called tropisms. A tropism may be either positive, if the reaction is toward the stimulus, or negative, if the reaction is away from the stimulus. Tropisms are named by using the names of the stimuli as prefixes which produce the reaction. The following are examples of tropisms which affect insects : Phototropism... Geotropism... Heliotropism... Chemotropism--response to chemical stimuli.  4, record 3, English, - chemotropism

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Réaction d'orientation des organismes ou des organes sous l'effet d'agents chimiques.  2, record 3, French, - chimiotropisme

Record number: 3, Textual support number: 1 CONT

Chimiotropisme. Extrêmement développé chez les insectes, il est présent dans tous les groupes d'animaux, même chez les mammifères, à un degré moindre cependant. Le chimiotropisme est lié à la recherche sexuelle, aux traces alimentaires et à la notion de territoire. La sensibilité est telle qu'il suffit souvent de quelques molécules d'une substance bien déterminée frappant l'organe sensible, pour créer la réaction d'orientation; la réaction motrice consiste, pour l'insecte, à se diriger selon le gradient de concentration ou contre le vent (vecteur du message chimique) jusqu'à proximité de la source (femelle ou proie) où s'effectue la réaction comportementale caractéristique (accouplement ou capture), liée au stimulus chimique (essai d'accouplement de nombreux insectes sur la glande odorante des femelles de leur espèce). Le chimiotropisme chez l'animal est caractérisé par son étroite sélectivité, sa très grande sensibilité, la modulation de la réaction comportementale en fonction de la concentration de la molécule dans le milieu.  3, record 3, French, - chimiotropisme

Record 3,  Textual support,  Spanish