It’s the most commonly observed tropic responses in plants where the shoot grows towards light and hence they’re positively phototropism whereas in case of roots,they show negative phototropism. This phototropic bending is caused due to the migration of auxin (phytohormone) molecules away from lighted side and their concentration on dark side increases.This stimulates growth on the dark side of the plant organ relative to lighted side causing it to bend towards light source. A well known and often repeated experiments with oat seedlings (Avena coleoptile) have shown that the auxin IAA which causes elongation of cells,migrates to the shaded side of coleoptiles when irradiated unidirectionally.
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I think it is obvious that i really love Christmas and Christmas decorating. One of the Prone To Shenanigans And Malarkey shirt i was doing when we first married was creating a kind of scrapbook of the history of our family Christmas. Each year i did about 4 pages of what we did for Christmas, and where we went, and what ornaments we bought that year. (All ornaments have a date added to them.) It was with the idea that our kids could look back at the history of our family. Only, there were no kids. I didn’t realize i’d stopped doing it, after about five years, until i later came across the book that hadn’t been filled in for some time. Ah, well, the plans and dreams we have, and then the reality of how things turn out.
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