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Nina E Fatouros - One of the best experts on this subject based on the ideXlab platform.
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Anti-aphrodisiac Compounds of Male Butterflies Increase the Risk of Egg Parasitoid Attack by Inducing Plant Synomone Production
2013Co-Authors: Nina E Fatouros, Martinus E Huigens, Foteini G Pashalidou, Wilma Aponte V. Cordero, R. Mumm, M. Dicke, M. E. Huigens, W. Aponte V. Cordero, M. HilkerAbstract:# The Author(s) 2009. This article is published with open access at Springerlink.com Abstract During mating in many butterfly species, males transfer spermatophores that contain anti-Aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti-aphrodisiac, benzyl cyanide (BC) to females. Accessory reproductive gland (ARG) secretion of a mated female P. brassicae that is deposited with an egg clutch contains traces of BC, inducing Brussels sprouts plants (Brassica oleracea var. gemmifera) to arrest certain Trichogramma egg parasitoids. Here, we assessed whether deposition of one egg at a time by the closely related small cabbage white, Pieris rapae, induced B. oleracea var
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chemical espionage on species specific butterfly anti Aphrodisiacs by hitchhiking trichogramma wasps
Behavioral Ecology, 2010Co-Authors: Martinus E Huigens, Jozef B Woelke, Foteini G Pashalidou, Tibor Bukovinszky, Hans M Smid, Nina E FatourosAbstract:Parasitic wasps employ a wide range of chemical cues to find their hosts. Very recently, we discovered how 2 closely related egg parasitoids, Trichogramma brassicae and Trichogramma evanescens, exploit the anti-aphrodisiac pheromone benzyl cyanide of one of their hosts, the gregarious large cabbage white butterfly Pieris brassicae that deposits a clutch of more than 20 eggs per oviposition bout. The pheromone is transferred by male butterflies to females during mating to enforce female monogamy. On detecting the anti-aphrodisiac, the tiny parasitic wasps ride on a mated female butterfly to a host plant and then parasitize her freshly laid eggs. The present study demonstrates that both wasp species similarly exploit the anti-aphrodisiac mixture of methyl salicylate and indole of another host, the more common solitary small cabbage white butterfly Pieris rapae that deposits only one egg at a time. Interestingly, this behavior is innate in T. brassicae, whereas T. evanescens learns it after one successful ride on a mated female butterfly. Moreover, we show that the wasps only respond to the anti-Aphrodisiacs of the 2 cabbage white butterflies when the ubiquitous compounds are part of a complete mated female odor blend. Obviously, parasitic wasps use the sophisticated espionage-and-ride strategy to find eggs of different gregarious and solitary host species. From the wasps' perspective there seems to be a trade-off between the abundance and egg-laying behavior of the butterflies. Our findings suggest that Pieris butterflies are under strong selective pressure to minimize the use of an anti-aphrodisiac. Copyright 2010, Oxford University Press.
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Chemical espionage on species-specific butterfly anti-Aphrodisiacs by hitchhiking Trichogramma wasps
Behavioral Ecology, 2010Co-Authors: Martinus E Huigens, Jozef B Woelke, Foteini G Pashalidou, Tibor Bukovinszky, Hans Smid, Nina E FatourosAbstract:Parasitic wasps employ a wide range of chemical cues to find their hosts. Very recently, we discovered how 2 closely related egg parasitoids, Trichogramma brassicae and Trichogramma evanescens, exploit the anti-aphrodisiac pheromone benzyl cyanide of one of their hosts, the gregarious large cabbage white butterfly Pieris brassicae that deposits a clutch of more than 20 eggs per oviposition bout. The pheromone is transferred by male butterflies to females during mating to enforce female monogamy. On detecting the anti-aphrodisiac, the tiny parasitic wasps ride on a mated female butterfly to a host plant and then parasitize her freshly laid eggs. The present study demonstrates that both wasp species similarly exploit the anti-aphrodisiac mixture of methyl salicylate and indole of another host, the more common solitary small cabbage white butterfly Pieris rapae that deposits only one egg at a time. 'Interestingly, this behavior is innate in T brassicae, whereas T evanescens learns it after one successful ride on a mated female butterfly. Moreover, we show that the wasps only respond to the anti-Aphrodisiacs of the 2 cabbage white butterflies when the ubiquitous compounds are part of a complete mated female odor blend. Obviously, parasitic wasps use the sophisticated espionage-and-ride strategy to find eggs of different gregarious and solitary host species. From the wasps' perspective there seems to be a trade-off between the abundance and egg-laying behavior of the butterflies. Our findings suggest that Pieris butterflies are under strong selective pressure to minimize the use of an anti-aphrodisiac.
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anti aphrodisiac compounds of male butterflies increase the risk of egg parasitoid attack by inducing plant synomone production
Journal of Chemical Ecology, 2009Co-Authors: Nina E Fatouros, Foteini G Pashalidou, Wilma Aponte V. Cordero, R. Mumm, M. Dicke, M. Hilker, Joop J A Van Loon, Martinus E HuigensAbstract:During mating in many butterfly species, males transfer spermatophores that contain anti-Aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti-aphrodisiac, benzyl cyanide (BC) to females. Accessory reproductive gland (ARG) secretion of a mated female P. brassicae that is deposited with an egg clutch contains traces of BC, inducing Brussels sprouts plants (Brassica oleracea var. gemmifera) to arrest certain Trichogramma egg parasitoids. Here, we assessed whether deposition of one egg at a time by the closely related small cabbage white, Pieris rapae, induced B. oleracea var. gemmifera to arrest Trichogramma wasps, and whether this plant synomone is triggered by substances originating from male P. rapae seminal fluid. We showed that plants induced by singly laid eggs of P. rapae arrest T. brassicae wasps three days after butterfly egg deposition. Elicitor activity was present in ARG secretion of mated female butterflies, whereas the secretion of virgin females was inactive. Pieris rapae used a mixture of methyl salicylate (MeSA) and indole as an anti-aphrodisiac. We detected traces of both anti-aphrodisiacal compounds in the ARG secretion of mated female P. rapae, whereas indole was lacking in the secretion of virgin female P. rapae. When applied onto the leaf, indole induced changes in the foliar chemistry that arrested T. brassicae wasps. This study shows that compounds of male seminal fluid incur possible fitness costs for Pieris butterflies by indirectly promoting egg parasitoid attack.
Christian Zidorn - One of the best experts on this subject based on the ideXlab platform.
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ethnobotany phytochemistry and bioactivity of the genus turnera passifloraceae with a focus on damiana turnera diffusa
Journal of Ethnopharmacology, 2014Co-Authors: Katarzyna Szewczyk, Christian ZidornAbstract:Abstract Ethnopharmacological relevance Half a dozen of the currently accepted 135 Turnera species are used in traditional medicine, most notably Turnera diffusa Willd. ex Schult. which is one of the most highly appreciated plant Aphrodisiacs. Other traditional uses of Turnera L. species include the treatment of anaemia, bronchitis, cough, diabetes, fever, fungal disease, gastrointestinal complaints, pain, pulmonary and respiratory diseases, skin disorders, and women׳s health problems. Additionally, Turnera species are used as abortives, expectorants, and laxatives. Phytochemistry Flavonoids (22 different compounds), maltol glucoside, phenolics, cyanogenic glycosides (7 different compounds), monoterpenoids, sesquiterpenoids, triterpenoids, the polyterpene ficaprenol-11, fatty acids, and caffeine have been found in the genus Turnera. Bioactivity Bioactivities experimentally proven for members of the genus Turnera encompass antianxiety, antiaromatase, antibacterial including antimycobacterial, antidiabetic, antioxidant, adapatogenic, antiobesity, antispasmodic, cytotoxic, gastroprotective, hepatoprotective, and aphrodisiac activities. Most of these activities have so far been investigated only in chemical, cell based, or animal assays. In contrast, the antiobesity activity was also investigated in a study on healthy human subjects and with a herbal preparation containing among other ingredients Turnera diffusa leaves. Moreover, the enhancement of female sexual function was assessed in humans; again the product contained besides Turnera diffusa other potentially bioactive ingredients. However, with only few exceptions, most of the traditional uses and the experimentally verified bioactivities can currently not be related to a particular compound or compound class. A notable exception is the flavonoid apigenin, which was identified animal experiments as the antinociceptive principle of Turnera diffusa. Conclusion In this review, the current knowledge on ethnobotanical uses of members of the genus Turnera, the secondary metabolites reported from Turnera, and experimentally documented bioactivities from Turnera extracts and pure compounds derived from Turnera extracts are compiled. Moreover, some of the most interesting avenues for future research projects are being discussed briefly. These include in particular the aphrodisiac activity of Turnera diffusa and the antibiotic activity potentiating effect of Turnera ulmifolia L. against aminoglycoside resistant bacteria.
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Ethnobotany, phytochemistry, and bioactivity of the genus Turnera (Passifloraceae) with a focus on damiana—Turnera diffusa
Journal of Ethnopharmacology, 2014Co-Authors: Katarzyna Szewczyk, Christian ZidornAbstract:Abstract Ethnopharmacological relevance Half a dozen of the currently accepted 135 Turnera species are used in traditional medicine, most notably Turnera diffusa Willd. ex Schult. which is one of the most highly appreciated plant Aphrodisiacs. Other traditional uses of Turnera L. species include the treatment of anaemia, bronchitis, cough, diabetes, fever, fungal disease, gastrointestinal complaints, pain, pulmonary and respiratory diseases, skin disorders, and women׳s health problems. Additionally, Turnera species are used as abortives, expectorants, and laxatives. Phytochemistry Flavonoids (22 different compounds), maltol glucoside, phenolics, cyanogenic glycosides (7 different compounds), monoterpenoids, sesquiterpenoids, triterpenoids, the polyterpene ficaprenol-11, fatty acids, and caffeine have been found in the genus Turnera. Bioactivity Bioactivities experimentally proven for members of the genus Turnera encompass antianxiety, antiaromatase, antibacterial including antimycobacterial, antidiabetic, antioxidant, adapatogenic, antiobesity, antispasmodic, cytotoxic, gastroprotective, hepatoprotective, and aphrodisiac activities. Most of these activities have so far been investigated only in chemical, cell based, or animal assays. In contrast, the antiobesity activity was also investigated in a study on healthy human subjects and with a herbal preparation containing among other ingredients Turnera diffusa leaves. Moreover, the enhancement of female sexual function was assessed in humans; again the product contained besides Turnera diffusa other potentially bioactive ingredients. However, with only few exceptions, most of the traditional uses and the experimentally verified bioactivities can currently not be related to a particular compound or compound class. A notable exception is the flavonoid apigenin, which was identified animal experiments as the antinociceptive principle of Turnera diffusa. Conclusion In this review, the current knowledge on ethnobotanical uses of members of the genus Turnera, the secondary metabolites reported from Turnera, and experimentally documented bioactivities from Turnera extracts and pure compounds derived from Turnera extracts are compiled. Moreover, some of the most interesting avenues for future research projects are being discussed briefly. These include in particular the aphrodisiac activity of Turnera diffusa and the antibiotic activity potentiating effect of Turnera ulmifolia L. against aminoglycoside resistant bacteria.
Sanjay Kasture - One of the best experts on this subject based on the ideXlab platform.
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ethanolic extract of rubia peregrina l rubiaceae inhibits haloperidol induced catalepsy and reserpine induced orofacial dyskinesia
Natural Product Research, 2012Co-Authors: Andrea Maxia, Maria Assunta Frau, Caterina Foddis, Maria Cristina Lancioni, Veena S. Kasture, Sanjay KastureAbstract:In the traditional Sardinian system of medicine, Rubia peregrina L. (Rubiaceae) is reported as an aphrodisiac herb. Since the Aphrodisiacs may also have antioxidant and dopaminergic activities, the aim of this study was to study the effect of ethanolic extract of aerial parts of R. peregrina for the scavenging of free DPPH radicals and the inhibition of haloperidol-induced catalepsy in mice and reserpine-induced orofacial dyskinesia in rats. The extract exhibited significant antioxidant activity in a free radical DPPH assay with IC50 = 55.6 µg mL−1, which was very close to IC50 of ascorbic acid. The extract of R. peregrina (100 and 200 mg kg−1 intraperitoneally, i.p.) significantly inhibited haloperidol (1 mg kg−1 i.p.) – induced catalepsy in mice (p < 0.01). In rats, the extract (200 mg kg−1 i.p.) significantly (p < 0.01) inhibited the orofacial dyskinesia induced by intraperitoneal administration of reserpine (1 mg kg−1 on days 1, 3 and 5). This study demonstrates that R. peregrina has antioxidant activ...
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Ethanolic extract of Rubia peregrina L. (Rubiaceae) inhibits haloperidol-induced catalepsy and reserpine-induced orofacial dyskinesia.
Natural Product Research, 2011Co-Authors: Andrea Maxia, Maria Assunta Frau, Caterina Foddis, Maria Cristina Lancioni, Veena S. Kasture, Sanjay KastureAbstract:In the traditional Sardinian system of medicine, Rubia peregrina L. (Rubiaceae) is reported as an aphrodisiac herb. Since the Aphrodisiacs may also have antioxidant and dopaminergic activities, the aim of this study was to study the effect of ethanolic extract of aerial parts of R. peregrina for the scavenging of free DPPH radicals and the inhibition of haloperidol-induced catalepsy in mice and reserpine-induced orofacial dyskinesia in rats. The extract exhibited significant antioxidant activity in a free radical DPPH assay with IC50 = 55.6 µg mL−1, which was very close to IC50 of ascorbic acid. The extract of R. peregrina (100 and 200 mg kg−1 intraperitoneally, i.p.) significantly inhibited haloperidol (1 mg kg−1 i.p.) – induced catalepsy in mice (p
Martinus E Huigens - One of the best experts on this subject based on the ideXlab platform.
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Anti-aphrodisiac Compounds of Male Butterflies Increase the Risk of Egg Parasitoid Attack by Inducing Plant Synomone Production
2013Co-Authors: Nina E Fatouros, Martinus E Huigens, Foteini G Pashalidou, Wilma Aponte V. Cordero, R. Mumm, M. Dicke, M. E. Huigens, W. Aponte V. Cordero, M. HilkerAbstract:# The Author(s) 2009. This article is published with open access at Springerlink.com Abstract During mating in many butterfly species, males transfer spermatophores that contain anti-Aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti-aphrodisiac, benzyl cyanide (BC) to females. Accessory reproductive gland (ARG) secretion of a mated female P. brassicae that is deposited with an egg clutch contains traces of BC, inducing Brussels sprouts plants (Brassica oleracea var. gemmifera) to arrest certain Trichogramma egg parasitoids. Here, we assessed whether deposition of one egg at a time by the closely related small cabbage white, Pieris rapae, induced B. oleracea var
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chemical espionage on species specific butterfly anti Aphrodisiacs by hitchhiking trichogramma wasps
Behavioral Ecology, 2010Co-Authors: Martinus E Huigens, Jozef B Woelke, Foteini G Pashalidou, Tibor Bukovinszky, Hans M Smid, Nina E FatourosAbstract:Parasitic wasps employ a wide range of chemical cues to find their hosts. Very recently, we discovered how 2 closely related egg parasitoids, Trichogramma brassicae and Trichogramma evanescens, exploit the anti-aphrodisiac pheromone benzyl cyanide of one of their hosts, the gregarious large cabbage white butterfly Pieris brassicae that deposits a clutch of more than 20 eggs per oviposition bout. The pheromone is transferred by male butterflies to females during mating to enforce female monogamy. On detecting the anti-aphrodisiac, the tiny parasitic wasps ride on a mated female butterfly to a host plant and then parasitize her freshly laid eggs. The present study demonstrates that both wasp species similarly exploit the anti-aphrodisiac mixture of methyl salicylate and indole of another host, the more common solitary small cabbage white butterfly Pieris rapae that deposits only one egg at a time. Interestingly, this behavior is innate in T. brassicae, whereas T. evanescens learns it after one successful ride on a mated female butterfly. Moreover, we show that the wasps only respond to the anti-Aphrodisiacs of the 2 cabbage white butterflies when the ubiquitous compounds are part of a complete mated female odor blend. Obviously, parasitic wasps use the sophisticated espionage-and-ride strategy to find eggs of different gregarious and solitary host species. From the wasps' perspective there seems to be a trade-off between the abundance and egg-laying behavior of the butterflies. Our findings suggest that Pieris butterflies are under strong selective pressure to minimize the use of an anti-aphrodisiac. Copyright 2010, Oxford University Press.
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Chemical espionage on species-specific butterfly anti-Aphrodisiacs by hitchhiking Trichogramma wasps
Behavioral Ecology, 2010Co-Authors: Martinus E Huigens, Jozef B Woelke, Foteini G Pashalidou, Tibor Bukovinszky, Hans Smid, Nina E FatourosAbstract:Parasitic wasps employ a wide range of chemical cues to find their hosts. Very recently, we discovered how 2 closely related egg parasitoids, Trichogramma brassicae and Trichogramma evanescens, exploit the anti-aphrodisiac pheromone benzyl cyanide of one of their hosts, the gregarious large cabbage white butterfly Pieris brassicae that deposits a clutch of more than 20 eggs per oviposition bout. The pheromone is transferred by male butterflies to females during mating to enforce female monogamy. On detecting the anti-aphrodisiac, the tiny parasitic wasps ride on a mated female butterfly to a host plant and then parasitize her freshly laid eggs. The present study demonstrates that both wasp species similarly exploit the anti-aphrodisiac mixture of methyl salicylate and indole of another host, the more common solitary small cabbage white butterfly Pieris rapae that deposits only one egg at a time. 'Interestingly, this behavior is innate in T brassicae, whereas T evanescens learns it after one successful ride on a mated female butterfly. Moreover, we show that the wasps only respond to the anti-Aphrodisiacs of the 2 cabbage white butterflies when the ubiquitous compounds are part of a complete mated female odor blend. Obviously, parasitic wasps use the sophisticated espionage-and-ride strategy to find eggs of different gregarious and solitary host species. From the wasps' perspective there seems to be a trade-off between the abundance and egg-laying behavior of the butterflies. Our findings suggest that Pieris butterflies are under strong selective pressure to minimize the use of an anti-aphrodisiac.
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anti aphrodisiac compounds of male butterflies increase the risk of egg parasitoid attack by inducing plant synomone production
Journal of Chemical Ecology, 2009Co-Authors: Nina E Fatouros, Foteini G Pashalidou, Wilma Aponte V. Cordero, R. Mumm, M. Dicke, M. Hilker, Joop J A Van Loon, Martinus E HuigensAbstract:During mating in many butterfly species, males transfer spermatophores that contain anti-Aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti-aphrodisiac, benzyl cyanide (BC) to females. Accessory reproductive gland (ARG) secretion of a mated female P. brassicae that is deposited with an egg clutch contains traces of BC, inducing Brussels sprouts plants (Brassica oleracea var. gemmifera) to arrest certain Trichogramma egg parasitoids. Here, we assessed whether deposition of one egg at a time by the closely related small cabbage white, Pieris rapae, induced B. oleracea var. gemmifera to arrest Trichogramma wasps, and whether this plant synomone is triggered by substances originating from male P. rapae seminal fluid. We showed that plants induced by singly laid eggs of P. rapae arrest T. brassicae wasps three days after butterfly egg deposition. Elicitor activity was present in ARG secretion of mated female butterflies, whereas the secretion of virgin females was inactive. Pieris rapae used a mixture of methyl salicylate (MeSA) and indole as an anti-aphrodisiac. We detected traces of both anti-aphrodisiacal compounds in the ARG secretion of mated female P. rapae, whereas indole was lacking in the secretion of virgin female P. rapae. When applied onto the leaf, indole induced changes in the foliar chemistry that arrested T. brassicae wasps. This study shows that compounds of male seminal fluid incur possible fitness costs for Pieris butterflies by indirectly promoting egg parasitoid attack.
Katarzyna Szewczyk - One of the best experts on this subject based on the ideXlab platform.
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ethnobotany phytochemistry and bioactivity of the genus turnera passifloraceae with a focus on damiana turnera diffusa
Journal of Ethnopharmacology, 2014Co-Authors: Katarzyna Szewczyk, Christian ZidornAbstract:Abstract Ethnopharmacological relevance Half a dozen of the currently accepted 135 Turnera species are used in traditional medicine, most notably Turnera diffusa Willd. ex Schult. which is one of the most highly appreciated plant Aphrodisiacs. Other traditional uses of Turnera L. species include the treatment of anaemia, bronchitis, cough, diabetes, fever, fungal disease, gastrointestinal complaints, pain, pulmonary and respiratory diseases, skin disorders, and women׳s health problems. Additionally, Turnera species are used as abortives, expectorants, and laxatives. Phytochemistry Flavonoids (22 different compounds), maltol glucoside, phenolics, cyanogenic glycosides (7 different compounds), monoterpenoids, sesquiterpenoids, triterpenoids, the polyterpene ficaprenol-11, fatty acids, and caffeine have been found in the genus Turnera. Bioactivity Bioactivities experimentally proven for members of the genus Turnera encompass antianxiety, antiaromatase, antibacterial including antimycobacterial, antidiabetic, antioxidant, adapatogenic, antiobesity, antispasmodic, cytotoxic, gastroprotective, hepatoprotective, and aphrodisiac activities. Most of these activities have so far been investigated only in chemical, cell based, or animal assays. In contrast, the antiobesity activity was also investigated in a study on healthy human subjects and with a herbal preparation containing among other ingredients Turnera diffusa leaves. Moreover, the enhancement of female sexual function was assessed in humans; again the product contained besides Turnera diffusa other potentially bioactive ingredients. However, with only few exceptions, most of the traditional uses and the experimentally verified bioactivities can currently not be related to a particular compound or compound class. A notable exception is the flavonoid apigenin, which was identified animal experiments as the antinociceptive principle of Turnera diffusa. Conclusion In this review, the current knowledge on ethnobotanical uses of members of the genus Turnera, the secondary metabolites reported from Turnera, and experimentally documented bioactivities from Turnera extracts and pure compounds derived from Turnera extracts are compiled. Moreover, some of the most interesting avenues for future research projects are being discussed briefly. These include in particular the aphrodisiac activity of Turnera diffusa and the antibiotic activity potentiating effect of Turnera ulmifolia L. against aminoglycoside resistant bacteria.
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Ethnobotany, phytochemistry, and bioactivity of the genus Turnera (Passifloraceae) with a focus on damiana—Turnera diffusa
Journal of Ethnopharmacology, 2014Co-Authors: Katarzyna Szewczyk, Christian ZidornAbstract:Abstract Ethnopharmacological relevance Half a dozen of the currently accepted 135 Turnera species are used in traditional medicine, most notably Turnera diffusa Willd. ex Schult. which is one of the most highly appreciated plant Aphrodisiacs. Other traditional uses of Turnera L. species include the treatment of anaemia, bronchitis, cough, diabetes, fever, fungal disease, gastrointestinal complaints, pain, pulmonary and respiratory diseases, skin disorders, and women׳s health problems. Additionally, Turnera species are used as abortives, expectorants, and laxatives. Phytochemistry Flavonoids (22 different compounds), maltol glucoside, phenolics, cyanogenic glycosides (7 different compounds), monoterpenoids, sesquiterpenoids, triterpenoids, the polyterpene ficaprenol-11, fatty acids, and caffeine have been found in the genus Turnera. Bioactivity Bioactivities experimentally proven for members of the genus Turnera encompass antianxiety, antiaromatase, antibacterial including antimycobacterial, antidiabetic, antioxidant, adapatogenic, antiobesity, antispasmodic, cytotoxic, gastroprotective, hepatoprotective, and aphrodisiac activities. Most of these activities have so far been investigated only in chemical, cell based, or animal assays. In contrast, the antiobesity activity was also investigated in a study on healthy human subjects and with a herbal preparation containing among other ingredients Turnera diffusa leaves. Moreover, the enhancement of female sexual function was assessed in humans; again the product contained besides Turnera diffusa other potentially bioactive ingredients. However, with only few exceptions, most of the traditional uses and the experimentally verified bioactivities can currently not be related to a particular compound or compound class. A notable exception is the flavonoid apigenin, which was identified animal experiments as the antinociceptive principle of Turnera diffusa. Conclusion In this review, the current knowledge on ethnobotanical uses of members of the genus Turnera, the secondary metabolites reported from Turnera, and experimentally documented bioactivities from Turnera extracts and pure compounds derived from Turnera extracts are compiled. Moreover, some of the most interesting avenues for future research projects are being discussed briefly. These include in particular the aphrodisiac activity of Turnera diffusa and the antibiotic activity potentiating effect of Turnera ulmifolia L. against aminoglycoside resistant bacteria.