Scytonemin is a secondary metabolite and an extracellular matrix (sheath) pigment synthesized by many strains of cyanobacteria, including Nostoc, Scytonema, Calothrix, Lyngbya, Rivularia, Chlorogloeopsis, and Hyella. [1]

2022年5月1日 · Biosynthesis pathways of scytonemin are well-established in a few cyanobacteria. Scytonemin offers multi-purpose benefits, from sunscreen to biomarker. Trends in scytonemin research predicted by CiteSpace point to many unexplored areas to date.

Scytonemin is a ring assembly obtained by 1,1'-coupling of two molecules of (3E)-3-[(4-hydroxyphenyl)methylidene]cyclopenta[b]indol-2(3H)-one. A UV-screening molecule produced by many strains of cyanobacteria. It has a role as a biological …

2019年8月26日 · Traditionally, scytonemin is a well-established photoprotective compound against ultraviolet radiation. Its accumulation in the cyanobacterial sheath has been suggested to be a strategy adopted by several cyanobacteria to protect their cellular components against damaging effects of UVR.

Scytonemin is a promising UV-screen and antioxidant small molecule with commercial value in cosmetics and medicine. It is solely biosynthesized in some cyanobacteria. Recently, its biosynthesis mechanism has been elucidated in the model …

1993年9月15日 · Despite knowledge of the existence of the pigment called scytonemin for over 100 years, its structure has remained unsolved until now. This pigment, the first shown to be an effective, photo-stable ultraviolet shield in prokaryotes, is a novel dimeric molecule (molec. wt. 544) of indolic and phenolic subunits and is known only from the sheaths ...

2025年1月17日 · Explore the multifaceted roles of scytonemin, from its unique structure and biosynthesis to its ecological impact and protective properties. Scytonemin is a fascinating pigment found in certain cyanobacteria, known primarily for its role as a natural sunscreen.

Scytonemin is a small hydrophobic alkaloid pigment molecules present in the extracellular sheath of several cyanobacteria as a protective mechanism against short wavelength solar ultraviolet (UV) radiation.

Scytonemin is a lipid-soluble yellow-brown dimeric pigment molecule that provides protection against UVR due to its capacity to absorb significantly at 384, 300, 278, and 252 nm and constitutes the second important class of UV-absorbing compounds in cyanobacteria.

2022年5月1日 · Scytonemin, a highly stable UV-protective pigment, synthesized by some cyanobacteria has become a striking target as an effective medicine and natural-ecofriendly sunscreen. However, its application in cosmetic/pharmaceutical industries has been restrained due to its incompetent productivity.