Phytomelanin

From Infogalactic: the planetary knowledge core
Jump to: navigation, search
Section of fruit of Bidens, showing phytomelanin deposits (*)

Phytomelanin (phytomelan) is a black, inert, organic material that forms a crust-like covering of some seeds, commonly found in Asparagales and Asteraceae but uncommon in other taxonomic groupings. Phytomelan is found in most families of the Asparagales (although not in Orchidaceae). It is mechanically hard and forms a resistant substance, although it is more pliable in the developing fruit, hardening later. Chemically it appears to be a polyvinyl aromatic alcohol, and is thought to be exuded from the hypodermis. it appears to provide resistance to insect predators and desiccation.[1][2][3]

References

Bibliography

  • Lua error in Module:Citation/CS1/Identifiers at line 47: attempt to index field 'wikibase' (a nil value).
  • Pandey, AK; Dhakal, MR (25 April 2001). "Phytomelanin in Compositae" (PDF). Current Science. 80 (8): 933–940.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  • Lua error in Module:Citation/CS1/Identifiers at line 47: attempt to index field 'wikibase' (a nil value).