This is the 15th year of continuous daily publication for 365Caws. All things considered, it's likely it will be the last year as it is becoming increasingly difficult for me to find interesting material. However, I hope that I may have inspired someone to a greater curiosity about the natural world with my natural history posts, or encouraged a novice weaver or needleworker. If so, I've done what I set out to do.
Friday, October 15, 2021
Xanthous
Day 2: Hmmm...I might have been lost down the rabbit hole forever, but for a detour it took into certain controlled substances. I was reading up on xanthophyll, the pigment which provides the beautiful yellows revealed in autumn when it is no longer masked by chlorophyll ("xanthous" means "yellow"). I was intrigued to learn that some herbicides target xanthophyll because it protects plants against light toxicity. By destroying the pigment, these herbicides open the plant to light-burning. As I read on, I found myself pondering the significance of xanthophyll and the seasonal reduction of chlorophyll when natural light levels diminish, and the next thing I knew, I struck a whole Google page devoted to suggested reading for commercial growers of a product I'd prefer to see made illegal. You know what they say about not being able to "unsee" something. I may never be able to look at my vining hydrangea in quite the same way again.
Labels:
light toxicity,
vining hydrangea,
xanthophyll
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