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florigen
)its a hormone responsible for inducing flowering in plants directly
)moves from leaves to the apex inducing flowering by phloem mechanism
)no inter conversion from one phase to other
phytochrome
)it is a light absorbing pigment which induces flowering in long day plants
)pigments p660 and p730 absorb red and far red light respectively
)p660absorbs red light and immediately converts into p730 and as p730 absorbs far red light which induces flowering thus flowering is induced in long day plants because p730 is present in day
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How does phytochrome act in plant photoperiodism?
It will take a certain amount of time to respond to certain types of light, and a phytochrome only responds to red and far red. Otherwise, it will repel all other types of light
Are all wavelengths of light equal in phototropism?
No. Different forms of phytochrome absorb different wavelengths of light. Different forms of phytochrome are scattered throughout the plant. This allows the plant to perceive different intensities, wavelengths, and quality of light. Hope that helped!
What is the pigment responsible for photoperiodism?
Action spectra and photoreversibility experiments show that phytochrome is the pigment that receives the red light. Red light is the most effective color in interrupting the night-time portion of the photoperiod.
What are phytochrome?
Phytochromes are a type of photoreceptor that is responsive to light in the red to far red range. They are used by plant seeds to determine when to germinate and by plants to set circadian rhythms and tell the season. A phytochrome is a set of 2 of the same protein that are stuck together, with kinase regions at the bottom and photoreceptor regions at the top. They have 2 configurations - one, called Pr, which is receptive to red light, and another, called Pfr, which is receptive to far red light. When a phytochrome receives it's type of light, it switches to the other configuration. In plants, phytochromes are made in the Pr configuration and are active in the Pfr configuration. -L.J.
What is the difference between ontogeny and phylogeny?
answer difference between ontogeny and phylogeny?
In which form is the phytochrome at the end of a sunny day?
Primarily PR far red phytochrome(novanet)
What is the prefix that means plant?
phyto-. e.g. phytochrome
How does phytochrome act in plant photoperiodism?
It will take a certain amount of time to respond to certain types of light, and a phytochrome only responds to red and far red. Otherwise, it will repel all other types of light
Which phytochrome controlled responses displays far-red Reversibility?
Low fluorescence response
What morphogenetic process are under the control of phytochrome?
permeability of membrane conductance leaf movement
Are all wavelengths of light equal in phototropism?
No. Different forms of phytochrome absorb different wavelengths of light. Different forms of phytochrome are scattered throughout the plant. This allows the plant to perceive different intensities, wavelengths, and quality of light. Hope that helped!
Why do plants grow better under red light?
The photosynthesis pathway has phytochrome systems which response to red light.
What is the photoreceptors that allow plants to detect day length?
Phytochrome is the photoreceptor that allows plants to detect day length.
What is the photoreceptor that allows plants to detect day length is called?
Phytochrome is the photoreceptor that allows plants to detect day length.
What is the photoceptor that allows plants to detect day length called?
Phytochrome is the photoreceptor that allows plants to detect day length.
What is difference between as on and as at?
difference between as on and as at
What are the differences between California and Florida?
What is the difference between Florida and California What is the difference between Florida and California
