well I had not intended on replying here any further as I've stated that I did not intend to cause problems. I in no way was trying to provide a diagnosis nor did I feel I had. My first 2 posts in this thread was related to what I'd seemed to find in my own situations; whereas the 3rd post was after I went ahead and tried to narrow things down some. I "assumed" that the information provided was to just help understand what's going on and maybe get a direction to find an answer. I was very shocked that
@jlr42024 perceived this to be, in any way; a diagnosis.
I did not intend to "Cram" information or "force" information on any of you.
@Canalchemist I was also surprised that using "reference links to published documentation" was a negative. I don't like to just state something if it can / should be referenced so that it can be known where the information came from. Could you please elaborate how it is improper to do this as I do not understand why. Also, could you please expound on what you meant by "out of context" as I thought these were pretty "on par" quotes.
Now as to the LED thing. Nope that is not silly. Yep the Utilitech 10K LED daylight 9w bulbs from Lowe's WILL cause this purple if it's placed facing the stems. The ONLY,.....ONLY reason I brought that up is because I use those for supplementary light with my males (being used for pollen). This occurs everytime and results in a more solid purple rather than stripes....and again; only where the light hits the stem. I am fully aware of the spectral output of leds and the photosynthetic action spectrum of plants. I was in no way attempting to relate this as a result of UV-B and also was stated before I'd even read it possible for UV-B to cause a response.
I'm very sorry again if i caused problems and if putting links to sources is bad / wrong. I only was intending to bring forth that since it's a pigment and that pigment is contained in an aqueous cavity; that internal changes to this pH would be (in the end) what causes the change.
As to anthocyanins in plants. Actually they have found great medical benefits from this in recent years and Massive study is going into increasing Anthocyanins and extraction for medical use. Believe it or not, they still don't know exactly what causes this and how to increase it without genetic modification. However, I feel it may be a bit longer before scientists can nail down what is going on. Although, it will be different for various species. If anyone wants to research into pH alterations in the cytosol that can affect anthocyanin response; you will find there's only a small group of things ,interally, that can do this.
Just as an aside; heres a small article on purple corn (lots of researching being done here). They state although it's not understood fully; they believe that cool nights and high light are causing a buildup of sugars that, in turn, cause an anthocyanic response. Sucrose is one of the few components that are able to alter anthocyanin's color.
reference
Again I just want to clarify my intent and that I wasn't forcing information. I did not have enough interest in this to fully research as a result of my own specimens. I had only got enough motivation to help since the post was made. I like to learn things and convey that information but am not the type to "think I know it all" nor that I ever will. I do not ever intend to lord things over people and I'm sorry if the information was taken that way.
I will not post in this thread again as I feel I'm just imposing somewhere I'm not wanted. I will try to not put reference links in any further posts that I may do on this forum; though I feel it may be best for me to just stick to "likes" and not speak. I grew up in a situation where I'm not supposed to speak unless spoken to, so I can do that.
Sorry....