Regulation of seed germination and seedling growth by chemical signals from burning vegetation.

@article{Nelson2012RegulationOS,
  title={Regulation of seed germination and seedling growth by chemical signals from burning vegetation.},
  author={D. C. Nelson and G. Flematti and E. Ghisalberti and K. Dixon and Steven M. L. Smith},
  journal={Annual review of plant biology},
  year={2012},
  volume={63},
  pages={
          107-30
        }
}
It is well known that burning of vegetation stimulates new plant growth and landscape regeneration. The discovery that char and smoke from such fires promote seed germination in many species indicates the presence of chemical stimulants. Nitrogen oxides stimulate seed germination, but their importance in post-fire germination has been questioned. Cyanohydrins have been recently identified in aqueous smoke solutions and shown to stimulate germination of some species through the slow release of… Expand
Fire cues trigger germination and stimulate seedling growth of grass species from Brazilian savannas.
TLDR
The strong promotive effect of smoke on Aristida germination suggests that these species are fire-adapted, and one of very few examples showing a positive germination and seedling growth response to smoke for species from neotropical savannas. Expand
Effect of fire-derived chemicals on germination and seedling growth in Mediterranean plant species
TLDR
Novel evidence is provided that the recruitment of different Mediterranean species may be enhanced by different smoke compounds, and that synergetic and inhibitory effects of chemical compounds are important in the germination ecology of plants. Expand
Plant derived smoke stimulation for seed germination and enhancement of crop growth: A review
Smoke is an important factor involved in fire and post fire germination cues. The role of smoke in stimulating germination was first highlighted in South Africa in a study on Audouinia capitata, aExpand
Heat shock and plant leachates regulate seed germination of the endangered carnivorous plant Drosophyllum lusitanicum
TLDR
The separate effects of heat shock and plant leachates on seed germination of Drosophyllum lusitanicum, an endangered carnivorous plant endemic to Mediterranean fire-prone heathlands, are assessed to understand the population dynamics patterns found for D. lusitansicum in natural populations, and highlight the role of fire in the ecology and conservation of this endangered species. Expand
Fire-Borne Life: A Brief Review of Smoke-Induced Germination
TLDR
The scientific community really started to reveal the secrets of these enigmatic components from the early 1990s, although there are still a number of questions to be answered. Expand
Influence of KAR1 on the plant growth and development of dormant seeds by balancing different factors
Karrikins is a new family of different compounds that can interrupt the seed's dormancy and cause seed germination. Karrikins chemically defined as a family of compounds formed in smoke from theExpand
Seed enhancing treatments: comparative analysis of germination characteristics of 23 key herbaceous species used in European restoration programmes.
TLDR
The results showed that no single treatment increased the germination of all the tested species, rather a wide variation of responsiveness of the different species to the three compounds was found, and no interaction was found between responsiveness to compounds and ecological niche. Expand
Shedding light through the smoke on the germination of Mediterranean Basin flora
TLDR
Differences in evidence of smoke-stimulated germination in MB flora when compared with other Mediterranean regions may not reflect real ecological or evolutionary differences among these regions but are likely the consequence of the limited number of well-designed studies in the MB. Expand
Does smoke water enhance seedling fitness of serotinous species in fire-prone southwestern Western Australia?
TLDR
The results showed that while the seeds of the eight serotinous species readily germinated with or without smoke treatment, there were significant smoke responses with regards to enhanced seedling fitness in three species. Expand
Seed germination traits of desert perennials
TLDR
Results will inform land managers of effective seed pre-treatments prior to seed broadcasting for restoration, and information on seed germination temperatures and rates will improve the understanding of when and where seeds could germinate in restored sites. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 131 REFERENCES
Karrikins: A new family of plant growth regulators in smoke
TLDR
The discovery that karrikins trigger seed germination and control seedling growth in taxa that would rarely experience fire indicates that their significance could extend far beyond fire ecology. Expand
Positive and negative signals regulate germination in the post- fire annual, Nicotiana attenuata
TLDR
It is demonstrated in a glasshouse experiment that germination into burned soils (as compared to unburned) results in a 12-fold increase in lifetime seed production, which reflects a minimum estimate of the fitness benefit of making accurat... Expand
Karrikins Discovered in Smoke Trigger Arabidopsis Seed Germination by a Mechanism Requiring Gibberellic Acid Synthesis and Light1[W][OA]
TLDR
It is demonstrated that Arabidopsis (Arabidopsis thaliana), an ephemeral of the temperate northern hemisphere that has never, to the authors' knowledge, been reported to be responsive to fire or smoke, rapidly and sensitively perceives karrikins and may have greater significance among angiosperms than previously realized. Expand
SMOKE-INDUCED SEED GERMINATION IN CALIFORNIA CHAPARRAL
TLDR
It is reported that smoke induces germination in 25 chaparral species, none of which were families known for heat-shock-stimulated germination, and it is suggested that such differences in response may affect postfire community structure. Expand
Transcriptome analysis of germinating maize kernels exposed to smoke-water and the active compound KAR1
TLDR
It is demonstrated that although smoke-water and KAR1 treatment of maize kernels result in a similar physiological response, the gene expression and the protein ubiquitination patterns are quite different. Expand
Effects of source of plant material and temperature on the production of smoke extracts that promote germination of light-sensitive lettuce seeds
TLDR
Chromatographic evidence obtained by thin-layer chromatography and high-performance liquid chromatography suggest that the same active compound(s) are produced from T. triandra leaves, agar and cellulose used in this study. Expand
Burning vegetation produces cyanohydrins that liberate cyanide and stimulate seed germination.
TLDR
It is proposed that glyceronitrile serves as an ecological store for cyanide and is an important cue for stimulating seed germination and landscape regeneration after fires. Expand
Butenolide from plant-derived smoke enhances germination and seedling growth of arable weed species
TLDR
It is found that while smoke stimulated germination in a number of species it also had negative impacts on other species, and butenolide was effective on the widest range of species in terms of enhancing germination percentage, rate and seedling mass. Expand
Does smoke substitute for red light in the germination of light-sensitive lettuce seeds by affecting gibberellin metabolism?
TLDR
Gibberellin synthesis is considered to be a likely component of the mechanism underlying smoke-induced germination, and was found to be significantly higher in red light-treated seeds than in controls, and peaked after 100% germination was obtained. Expand
Smoke as a germination cue: a review
TLDR
The positive effects of smoke have resulted in it being used as a seed pre-treatment for enhancing conservation of threatened or rare species, the horticultural exploitation of desirable plants and in the reclamation of mine spoils and disturbed land. Expand
...
1
2
3
4
5
...