What are the factors or in which conditions do plants produce anthocyanins or colour pigments? These are very widely produced by plants and have very good bio-activities. During its production or plant feel stress?
Like the other metabolites, anthocyanins have their own biosynthetic pathway. Phenylalanine is a direct precursor for the synthesis. The enzymes involved in this pathway include PAL, CHS, CHI, DFR, LDOX, ANS, UFGT.MYB10 is key Myb-related transcription factor which controls the expression of genes encoding enzymes above.
Is earth itself can be a single giant living organism producing organic hydrocarbons like all other living organism.even presence of all same minerals like fe,nickel,mn,cu ....... etc are also same in all living organisms ? anybody can help me on this matter ?. i am very much close to this.
In juvenile stages plant produce anthocynins especially in the apical and other meristematic regions , as they render protection from microbes and other environmental constraints, in mature stages in addition to the above function they play important role in flower coloration indirectly fascinating the pollinator and there by promoting pollination and the plant perpatuation
Anthocyanins in flowers are nice with many colors too, depending genetics.
I have asked many scientists for the reason of changing colors, depending on environment and transposon. However, I have not got the clear information.
Just I want to add that when anthocyanins are produced in flowers, it is for pollination and when it is produced in vegetative part of the plant, it is defensive in function against bacterial or fungal pathogens. In some plants like Coleus, Iresene, poinsettia etc., it is purely genetical irrespective of pollination or defense. Such plants serve as ornamentals
Hello everyone. I would like to turn your interest on an interesting discussion below the article from Nature News: http://www.nature.com/news/2007/071029/full/news.2007.202.html.
According to the comment of Adnan Bajraktarevic: I have studied plants subjected to drought, flood and chill. Often those producing anthocyanin in response to stres were able to cope with stress better that those devoid of anthocyanins.
Basically like all secondary metabolites, it also has got its secondary function, in flowers with different colours it attracts flies and bees and thus helps in pollination, otherwise it does have its physiologically activities also to support its existence.
Presence of anthocyanins in the young plants especially growing in the cold conditions provide a mechanism to generate heat and prevent them from freezing damages