What are Nastic movement ? Give an example each
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Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance), and are usually associated with plants. The movement can be due to changes in turgor or changes in growth.
An example of such a response is the opening and closing of flowers (photonastic response), movement of euglena, chlamydomonas towards the source of light.
¤ They are named with the suffix "-nasty" and have prefixes that depend on the stimuli:
1) Epinasty: downward-bending from growth at the top, for example, the bending down of a heavy flower.
2) Photonasty: response to light
3) Nyctinasty: movements at night or in the dark
4) Chemonasty: response to chemicals or nutrients
5) Hydronasty: response to water
6) Thermonasty: response to temperature
7) Geonasty/gravinasty: response to gravity
8) Thigmonasty/seismonasty/haptonasty: response to contact
An example of such a response is the opening and closing of flowers (photonastic response), movement of euglena, chlamydomonas towards the source of light.
¤ They are named with the suffix "-nasty" and have prefixes that depend on the stimuli:
1) Epinasty: downward-bending from growth at the top, for example, the bending down of a heavy flower.
2) Photonasty: response to light
3) Nyctinasty: movements at night or in the dark
4) Chemonasty: response to chemicals or nutrients
5) Hydronasty: response to water
6) Thermonasty: response to temperature
7) Geonasty/gravinasty: response to gravity
8) Thigmonasty/seismonasty/haptonasty: response to contact
Answered by
0
Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance), and are usually associated with plants. The movement can be due to changes in turgor or changes in growth.
An example of such a response is the opening and closing of flowers (photonastic response), movement of euglena, chlamydomonas towards the source of light.
¤ They are named with the suffix "-nasty" and have prefixes that depend on the stimuli:
1) Epinasty: downward-bending from growth at the top, for example, the bending down of a heavy flower.
2) Photonasty: response to light
3) Nyctinasty: movements at night or in the dark
4) Chemonasty: response to chemicals or nutrients
5) Hydronasty: response to water
6) Thermonasty: response to temperature
7) Geonasty/gravinasty: response to gravity
8) Thigmonasty/seismonasty/haptonasty: response to contact
An example of such a response is the opening and closing of flowers (photonastic response), movement of euglena, chlamydomonas towards the source of light.
¤ They are named with the suffix "-nasty" and have prefixes that depend on the stimuli:
1) Epinasty: downward-bending from growth at the top, for example, the bending down of a heavy flower.
2) Photonasty: response to light
3) Nyctinasty: movements at night or in the dark
4) Chemonasty: response to chemicals or nutrients
5) Hydronasty: response to water
6) Thermonasty: response to temperature
7) Geonasty/gravinasty: response to gravity
8) Thigmonasty/seismonasty/haptonasty: response to contact
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