Phytochrome occurs in two forms. In which for | vedclass

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(A) Phytochrome is a light-sensitive pigment that exists in two interconvertible forms: $Pr$ (red light-absorbing) and $Pfr$ (far-red light-absorbing)

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$Pfr$ form

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(A) Phytochrome is a light-sensitive pigment that exists in two interconvertible forms: $Pr$ (red light-absorbing) and $Pfr$ (far-red light-absorbing).$Pr$ absorbs red light $(660 \ nm)$ and is converted into the active $Pfr$ form.$Pfr$ absorbs far-red light $(730 \ nm)$ and is converted back into the inactive $Pr$ form.The $Pfr$ form is the physiologically active form that promotes various developmental processes,including the germination of light-sensitive seeds in many plant species.

Phytochrome occurs in two forms. In which form does it promote the germination of seeds of some species?

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