Stimulation of Orobanche crenata Seed Germination by (+)-Strigol and Structural Analogues Dependence on Constitution and Configuration of the Germinatio Stimulants

Bergmann, Clemens; Wegmann, K.; Frischmuth, Katja; Samson, Emmanuelle; Kranz, Angelika; Weigelt, Dirk; Köll, Peter; Welzel, Peter

doi:10.1016/s0176-1617(11)80432-3

Cited by 42 publications

(25 citation statements)

References 16 publications

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“…200 and 0.2 pg/ seedling, respectively. Therefore, this sorghum cultivar exuded relatively large amounts of 5-deoxy-strigol along with small amounts of strigol, and thus germination stimulation activity of this cultivar would be attributable to 5-deoxy-strigol which was reported to be about 1/3 as active as strigol on O. crenata (Bergmann et al 1993).…”

Section: Resultsmentioning

confidence: 90%

Foliar application of aminoethoxyvinylglycine (AVG) delays fruit ripening and reduces pre-harvest fruit drop and ethylene production of bagged “Kogetsu” apples

et al. 2006

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The germination stimulants for root parasitic plants Striga and Orobanche produced by sorghum (Sorghum bicolor (L.) Moench), maize (Zea mays L.), and pearl millet (Pennisetum typhoideum Rich.) were examined. Characterization of strigolactones in the root exudates from the plants grown hydroponically was conducted by comparing retention times of germination stimulants on reverse phase high performance liquid chromatography (HPLC) with those of synthetic standards, and by using HPLC linked with tandem mass spectrometry (LC/MS/MS). All the plants tested, except for a sorghum cultivar Swarna, were found to exude two major stimulants, 5-deoxy-strigol, which is known as a branching factor for arbuscular mycorrhizal (AM) fungi, and an isomer of strigol, tentatively named sorghumol. Swarna was found to exude 5-deoxystrigol and strigol. These results imply that 5-deoxy-strigol is one of major germination stimulants of gramineous plants and that major stimulants may differ even among cultivars within the same species.

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Section: Resultsmentioning

confidence: 90%

Foliar application of aminoethoxyvinylglycine (AVG) delays fruit ripening and reduces pre-harvest fruit drop and ethylene production of bagged “Kogetsu” apples

et al. 2006

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“…In all cases, no germination was observed when seeds were treated with distilled water. For S. hermonthica and O. crenata seeds, (±)-5-deoxystrigol is as active as GR24 (3); however, the curves differed in the activity for O. minor seeds at 10 À7 and 10 À8 M. (±)-5-Deoxystrigol (1) (1) was first synthesized in a racemic form as an analogue of strigol (Frischmuth et al, 1991) and its activity in inducing germination of O. crenata seeds was confirmed (Bergmann et al, 1993). (+)-5-Deoxystrigol (1) was isolated from the root exudate of L. japonicus by Akiyama et al (2005) as a hyphal branching factor for arbuscular mycorrhizal fungi.…”

Section: Resultsmentioning

confidence: 99%

Production of (+)-5-deoxystrigol by Lotus japonicus root culture

Sugimoto

Ueyama

2008

Phytochemistry

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“…(witchweeds; Orobanchaceae) (122) and Orobanche spp. (broomrapes; Orobanchaceae) (9). (+)-Strigol (Figure 2l) was the first SL identified (19,20), but most studies utilize the simpler synthetic analog GR24 (Figure 2m) (75).…”

Section: Similarity Between Karrikins and Strigolactonesmentioning

confidence: 99%

Regulation of Seed Germination and Seedling Growth by Chemical Signals from Burning Vegetation

Nelson

Flematti

Ghisalberti

et al. 2012

Annu. Rev. Plant Biol.

261

200

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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 cyanide. However, the most information is available for karrikins, a family of butenolides related to 3-methyl-2H-furo[2,3-c]pyran-2-one. Karrikins stimulate seed germination and influence seedling growth. They are active in species not normally associated with fire, and in Arabidopsis they require the F-box protein MAX2, which also controls responses to strigolactone hormones. We hypothesize that chemical similarity between karrikins and strigolactones provided the opportunity for plants to employ a common signal transduction pathway to respond to both types of compound, while tailoring specific developmental responses to these distinct environmental signals.

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Stimulation of Orobanche crenata Seed Germination by (+)-Strigol and Structural Analogues Dependence on Constitution and Configuration of the Germinatio Stimulants

Cited by 42 publications

References 16 publications

Foliar application of aminoethoxyvinylglycine (AVG) delays fruit ripening and reduces pre-harvest fruit drop and ethylene production of bagged “Kogetsu” apples

Foliar application of aminoethoxyvinylglycine (AVG) delays fruit ripening and reduces pre-harvest fruit drop and ethylene production of bagged “Kogetsu” apples

Production of (+)-5-deoxystrigol by Lotus japonicus root culture

Regulation of Seed Germination and Seedling Growth by Chemical Signals from Burning Vegetation

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