Patterns in the seed germination response to smoke in plants from the Cape Floristic Region, South Africa
By N. Brown, J. van Staden, M. Daws, T. Johnson. 2003
103 citations recorded by the source corpus.
De Lange and Boucher (1990) discovered the germination enhancing effect of plant-derived smoke on seed of fynbos species. This finding has been applied to horti- culturally important fynbos species and to date 301 species have been tested for a response to smoke. Germination in 150 (49.8%) of these was significantly improved by smoke treatment; the remaining 151 species showed no significant response. Families in which species showed a significant response included the horticulturally important Asteraceae (everlastings), Bruniaceae (brunias), Crassulaceae (crassulas), Ericaceae (ericas), Geraniaceae (pelargoniums), Mesembryanthemaceae (mesembs), Proteaceae (pro- teas) and Restionaceae (restios). No species responded in the families of geophytes such as Amaryllidaceae and Hyacinthaceae and in the Iridaceae the majority of species studied (also geophytes) did not respond. Further analysis of the germination results using ordinal logistic regression confirmed that the geophytic growth form was a robust predictor of response to smoke; geophytes exhibited a very low germination response to smoke. In addition, the analysis indicated that serotinous species had seeds that were less likely to respond to smoke than non-serotinous species, presumably as a consequence of their seeds not being in the soil when fire occurs. It also indicated that plants with some capacity to re-sprout were less likely to respond to smoke than obligate seeders.
Subfields: Ecology, Evolution, Behavior and Systematics, Plant Science
View Paper: https://www.semanticscholar.org/paper/d1dfba347ff2f06c307e72624f354368373fb782
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In Ecology, Evolution, Behavior and Systematics
In Plant Science
Citations in the corpus
- Butenolide from plant-derived smoke enhances germination and seedling growth of arable weed species (2006, background): “Smoke also markedly improves post-germinative growth (seedling vigour) in seeds of the Amaryllidaceae, even though in these species there was no effect on germination (Brown et al. 2003; Sparg et al. 2005).”
- Smoke-derived butenolide: Towards understanding its biological effects (2009, unknown): “Expansins have been reported previously in seed germination, playing a role in both endosperm cap weakening and embryo growth in tomato (Chen and Bradford, 2000).”