Abstract：
:Chlorophyll derivatives are known to enhance vision in vertebrates. They are thought to bind visual pigments (i.e., opsins apoproteins bound to retinal chromophores) directly within the retina. Consistent with previous findings in vertebrates, here we show that chlorin e6 - a chlorophyll derivative - enhances photophobicity in a flatworm (Dugesia japonica), specifically when exposed to UV radiation (λ = 405 nm) or red light (λ = 660 nm). This is the first report of chlorophyll derivatives acting as modulators of invertebrate phototaxis, and in general the first account demonstrating that they can artificially alter animal response to light at a behavioral level. Our findings show that the interaction between chlorophyll derivatives and opsins virtually concerns the vast majority of bilaterian animals, and also occurs in visual systems based on rhabdomeric (rather than ciliary) opsins.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Degl'Innocenti A,Rossi L,Salvetti A,Marino A,Meloni G,Mazzolai B,Ciofani Gdoi
10.1038/s41598-017-03247-1subject
Has Abstractpub_date
2017-06-13 00:00:00pages
3374issue
1issn
2045-2322pii
10.1038/s41598-017-03247-1journal_volume
7pub_type
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