tropē = Hinwendung], gerichtete Wachstumsbewegung entlang eines Stoff- Gradienten; insbesondere bei Pflanzen ausgeprägte Erscheinung, die vor allem bei der Fortpflanzung und beim Parasitismus eine wichtige Rolle spielt. See more. Von einer Pflanzenbewegung spricht man in der Botanik, wenn eine Pflanze auf einen Reiz mit einer Bewegung reagiert. Chemotropism is defined as the growth of organisms navigated by chemical stimulus from outside of the organism. The growth response may also be either positive or negative. zu erschließen, oder um Gefahren auszuweichen. Es werden 2 Formen der Chemotrophie unterschieden: die Chemoorganotrophie, bei der organische Substrate, und die Chemolithotrophie… An example is the growth of a pollen tube down the style during fertilization in response to the presence of sugars in the style. Source for information on chemotropism: A Dictionary of Biology dictionary.

A positive chemotropism is one in which the growth response is towards the stimulus whereas a negative chemotropism … …light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current). Chemotropism definition, oriented growth or movement in response to a chemical stimulus. Definition noun, plural: chemotrophs An organism that obtains energy mainly from carbon dioxide and from other inorganic chemicals through a process called chemosynthesis Supplement Chemotrophs are organisms that obtain energy through chemical process called chemosynthesis rather than by photosynthesis. Positive growth is characterized by growing towards a stimulus and negative growth is growing away from the stimulus.
It has been observed in bacteria, plants and fungi. A chemical gradient can influence the growth of the organism in a positive or negative way. Chemotropismus m [von *chemo –, griech. Pflanzenbewegungen dienen der einzelnen Pflanze dazu, den Lebensraum bestmöglich auszunutzen bzw. Der Energiegewinn kann durch aerobe Atmung oder anaerobe Atmung oder durch Gärung erfolgen.

The growth response may involve the entire organism or parts of the organism.

Chemotroph. chemotropism The growth or movement of a plant or plant part in response to a chemical stimulus. There are many forms of tropisms and one of them is the so-called chemotropism. chemotropism (countable and uncountable, plural chemotropisms) ( biology ) The movement or growth of an organism in response to a chemical stimulus Synonyms [ edit ] In chemotropism, the growth of the organism is based upon its response to a chemical stimulus.