sporonin Biochem.
(ˈspɒrənɪn)
[a. G. sporonin (Zetsche & Huggler 1928, in Ann. der Chem. CDLXI. 94): see sporo- and -in1.]
An inert substance forming the resistant outer covering of spores. Cf. sporopollenin.
| 1928 Chem. Abstr. XXII. 2949 This, after prolonged digestion with HCl, followed by boiling with 5% alkali, affords a new brownish yellow substance, sporonin, (C10H16O3)x. 1964 Grana Palynologica V. 247 According to Zetsche the membranes consisted of cellulose and a specific substance called sporonin, or pollenin if derived from pollen, which was responsible for the chemical stability of the membranes. 1974 Stanley & Linskens Pollen ix. 138 Because of the similarity of spore wall sporonin to pollen wall pollenin they [sc. Zetsche et al.] subsequently used the word ‘sporopollenin’. |