Airborne sperm of Conocephalum conicum (Conocephalaceae)
We have obtained the first momentary photographs of sperms just as they are discharged from the antheridium of a liverwort, Conocephalum conicum, and have succeeded in monitoring the airborne sperms of bryophytes under field conditions. Airborne sperm of liverworts seems to be an effective strategy for raising the efficiency of fertilization between male and female plants separated in a drought environment.
KeywordsSperm Fertilization Conocephalum conicum
We thank S. Takeshita and T. Maehara for technical advice on use of the digital video camera and also thank H. Fujita for helpful comments on the manuscript.
Movie S1 (MOV 867 kb)
- Brodie HJ (1951) The splash-cup dispersal mechanism in plants. Can J Bot 29:224–234Google Scholar
- Cavers F (1903) Explosive discharge of antherozoids in Fegatella conica. Ann Bot 17:270–274Google Scholar
- Schuster RM (1992) The hepaticae and anthocerotae of North America, vol VI. Field Museum of Natural History, ChicagoGoogle Scholar