What does phytochromes mean?

Definition of phytochrome : any of a group of proteins bound to light-absorbing pigments in many plants that play a role in initiating floral and developmental processes when activated by red or near-infrared radiation.

What do phytochromes do?

Phytochromes control many aspects of plant development. They regulate the germination of seeds (photoblasty), the synthesis of chlorophyll, the elongation of seedlings, the size, shape and number and movement of leaves and the timing of flowering in adult plants.

Where is phytochrome found in plants?

Plant phytochromes are present in the cytoplasm in their dark state and are transported into the nucleus upon light activation.

Is phytochrome a hormone?

It’s the hormone with the ability to reverses the effect other stimulating in growth hormones such as gibberellins and cytokinins. Another very important plant hormone responsible for seed dormancy, responsible for shoot elongation, seed germination, and fruit and flower maturation is the gibberellins.

What is the color of phytochrome?

Another example is phytochrome, a bilichrome pigment of blue colour, which, although present in very minute quantities in green plants, is indispensable in various photoperiodic processes.

What color is phytochrome?

blue colour
Another example is phytochrome, a bilichrome pigment of blue colour, which, although present in very minute quantities in green plants, is indispensable in various photoperiodic processes.

What is the role of phytochrome in photosynthesis?

PhyB is the most prominent and possibly important light-regulated switch for the light induced regulation by phytochromes. However, other phytochrome species are involved into the response of photosynthetic organisms to the external light conditions.

What is an example of a phytochrome?

function. Another example is phytochrome, a bilichrome pigment of blue colour, which, although present in very minute quantities in green plants, is indispensable in various photoperiodic processes.

What is the colour of phytochrome?

How many phytochromes are there?

five phytochromes
The Phytochrome Gene Family In Arabidopsis thaliana, there are five phytochromes, designated phytochrome A (phyA) to phyE. They are encoded by five distinct members of the phytochrome gene family and are classified into two groups according to their stability in light (Sharrock and Quail, 1989).