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Also known as the tulip break virus, lily streak virus, lily mosaic virus, or simply TBV, tulip breaking virus is most famous for its dramatic effects on the color of the tulip perianth, an effect highly sought after during the 17th-century Dutch "tulip mania". [3] Tulip breaking virus is a potyvirus. [4]
Floral color change may also be caused by an increase or decrease in pH causing a reddening/blueing of anthocyanins and co-pigments. Floral color change can be inducible or non-inducible. Some flowers will change color at the same rate regardless of pollinator visitation, while others can be induced by pollen deposition on the stigma.
Association of co-pigment with anthocyanin causes bathochromic effect, shift in absorption maximum to higher wavelength, in result we can observe change of the colour from red to blue. [3] This phenomenon is also called bluing effect. We can diversify two types of co-pigmentation, intermolecular and intramolecular.
We all know that roses are red and violets are blue…but actually, roses can also be blue, pink, orange, or even black. And that’s just the beginning.
In flowers, the coloration that is provided by anthocyanin accumulation may attract a wide variety of animal pollinators, while in fruits, the same coloration may aid in seed dispersal by attracting herbivorous animals to the potentially-edible fruits bearing these red, blue, or purple colors.
Many external factors can influence colour: light, temperature, pH, sugars and metals. [4] There is a method to turn petunia flowers from white to transparent. The petunia flower is immersed into a flask of water, connected to a vacuum pump, after which the flower appeared colourless.
It was adapted by flowers to orient pollinators leading to an example of co-evolution. [8] UV light allows them to broadcast a guide to where their pollen is located. [4] Due to unique life characteristics and morphology of flowers, pollinators are more effective at taking the pollen and spreading it to other flowers of the same species. [3]
Under laboratory conditions, the color change of the petals was slower than that of flowers under outdoor conditions. [6] Temperature may be an important factor, affecting the rate of color change as white flowers kept in the refrigerator remain white until they are taken out to warm up, whereupon they slowly turn pink.