function of chemotropism
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Chemotropism is defined as the growth of organisms navigated by chemical stimulus from outside of the organism. 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.
Occurence of chemotropism in plants,
A directional movement due to Chemical change. Ex: Pollen tube toward 0vule. The growth of pollen tube towards ovule induced by chemical (stigmatic fluid). Pollen tube grow down the style due to chemical substance produced by ovule during fertilisation.
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Chemotropism is the process of a plant component developing in response to a chemical stimulus.
- Chemotropism is the movement of a plant in response to a chemical stimulus.
- A sweet component stimulates pollen tube growth towards the ovule by acting as a stimulant.
- This is an example of positive chemotropism.
- Chemotropism is the growth or movement of a whole plant or portions of a plant in response to a chemical stimulus.
- To response to the presence of carbohydrates in the style, the pollen tube grows down to the ovule in the ovary via the stigma and style during fertilisation.
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