Autecological studies on Audouinia capitata (Bruniaceae). I. Plant-derived smoke as a seed germination cue

Lange, J.H. de; Boucher, C.

doi:10.1016/s0254-6299(16)31009-2

Cited by 282 publications

(166 citation statements)

References 4 publications

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“…The stimulation of seed germination by smoke and aqueous smoke extracts from burning plant materials has received much attention in fire-prone areas, primarily areas of Mediterranean climate, such as the Californian chaparral [1,2], the Cape region of South Africa [3][4][5][6][7][8][9][10][11][12][13][14][15] and Western Australia [16][17][18][19][20][21] over the past 20 years. Consequently, plant-derived smoke or aqueous extracts derived from smoke or smoke water (SW) may have broad applications as tools in natural agriculture or ecological restoration, or for enhancing the conservation of threatened or rare species [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effects of smoke water and karrikin on seed germination of 13 species growing in China

JunFang¹,

Silva

2014

Open Life Sciences

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Plant-derived smoke water (SW), derived from combusted plant material, has been shown to stimulate seed germination and improve seedling vigor of a number of plant species from fire-dependent Mediterranean-type climate areas. The effects of SW on seed germination of 13 plant species from southern tropical and subtropical monsoon climate regions of South China are reported for the first time in this study using laboratory and pot trials. Among the 13 species tested, only Aristolochia debilis showed a significant positive response to commercial SW when diluted 1:10. Seed germination of A. debilis was also stimulated by 1-100 nM 3-methyl-2H-furo [2, 3-c] pyran-2-one (karrikin 1 or KAR 1 ) and by 10-1000 µM gibberellic acid (GA 3 ). GA 3 stimulated seed germination of Santalum album and significantly elongated the radicles of A. debilis while SW could not. The functions and/or metabolic pathways of Kar 1 and GA 3 are likely to be separate and/or distinct.

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Section: Introductionmentioning

confidence: 99%

Effects of smoke water and karrikin on seed germination of 13 species growing in China

JunFang¹,

Silva

2014

Open Life Sciences

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“…Smoke derived from burning plant material and smokewater, obtained by bubbling smoke through water effectively stimulates the germination of seeds of many plant species from fire-prone areas of South Africa, Australia and California and also from fire-free environments including arable weeds and crop plants such as lettuce, celery and red rice (Brown 1993;Brown and Van Staden 1997;De Lange and Boucher 1990;Light et al 2009). Smoke applied to seeds also markedly improves seedling growth of both fire-sensitive and non-fire-sensitive seeds.…”

Section: Introductionmentioning

confidence: 99%

Releasing primary dormancy in Avena fatua L. caryopses by smoke-derived butenolide

2010

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The effect of smoke and smoke-derived butenolide in releasing dormancy of caryopses (referred to as seeds) of the economically important weed Avena fatua L. was studied. Seeds of A. fatua are dormant after harvest. Both smoke-water and butenolide, applied continuously, removed dormancy in darkness at 15, 20 and 25°C and slightly at 30°C. Butenolide was very active at a concentration of 10 -8M. Butenolide at 10 -8 M was also able to remove dormancy at 20°C when applied for 12 or 24 h at 4°C or for 3 to 24 h at 20°C. Sensitivity to butenolide decreased with longer preincubation times in water. This compound was less effective in releasing dormancy in the light than in darkness. Dormancy release by butenolide involves induction of cell-cycle activity just before coleorhiza protrusion. Stimulatory effects of smoke-water and butenolide were also observed in respect of seedling growth and vigor.

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“…Smoke derived from burning plant material is a key agent responsible for promoting seed germination following fire 3 and increases seed germination of an estimated 1,200 phylogenetically diverse plant species 4 . Smoke contains thousands of different compounds and there have been many attempts to identify the active compound(s) [5][6][7][8][9][10] .…”

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confidence: 99%

Burning vegetation produces cyanohydrins that liberate cyanide and stimulate seed germination

et al. 2011

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Cyanide is well known for its toxicity towards living organisms. many plants use cyanide as a defensive agent against herbivores, releasing it through the enzymatic hydrolysis of endogenous cyanogenic compounds. At low concentrations, cyanide has been proposed to have a regulatory role in many plant processes including stimulation of seed germination. However, no ecological role for cyanide in seed germination has been established. In the present study, we show that burning plant material produces the cyanohydrin, glyceronitrile. We also show that, in the presence of water, glyceronitrile is slowly hydrolysed to release cyanide that stimulates seed germination of a diverse range of fire-responsive species from different continents. We propose that glyceronitrile serves as an ecological store for cyanide and is an important cue for stimulating seed germination and landscape regeneration after fires.

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Autecological studies on Audouinia capitata (Bruniaceae). I. Plant-derived smoke as a seed germination cue

Cited by 282 publications

References 4 publications

Effects of smoke water and karrikin on seed germination of 13 species growing in China

Effects of smoke water and karrikin on seed germination of 13 species growing in China

Releasing primary dormancy in Avena fatua L. caryopses by smoke-derived butenolide

Burning vegetation produces cyanohydrins that liberate cyanide and stimulate seed germination

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