Experimental taxonomy of <i>Potentilla fruticosa</i>

Davidson, Campbell G.; Lenz, L. M.

doi:10.1139/b89-433

Cited by 7 publications

(8 citation statements)

References 13 publications

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“…Compounds 5 -7 showed strong toxicity against Artemia salina and inhibited moderately the feeding of Spodoptera littoralis [17]. Protocatechuic acid (40) and gallic acid (41) have been described to be responsible for the antifeedant property against slugs in Brachythecium rutabulum and Mnium hornum [40]. The same study also revealed that ferulic acid (42), and p-and m-coumaric acids (43 and 44, resp.)…”

Section: Functions Against Bioticmentioning

confidence: 89%

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Secondary Metabolites in Bryophytes: An Ecological Aspect

Xie

Lou

2009

Chemistry & Biodiversity

126

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Bryophytes frequently grow in an unfavorable environment as the earliest land plants, and inevitably biosynthesize secondary metabolites against biotic or abiotic stress. They not only defend against the plant competition, microbial attack, and insect or animal predation, but also function in UV protection, drought tolerance, and freezing survival. This review covers the ecological aspect of secondary metabolites in bryophytes and is taxonomically presented according to the ecological significances.

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Section: Functions Against Bioticmentioning

confidence: 89%

“…As mentioned above, 42 and 43 were accumulated in the wall-bound fraction of the moss shoots [40]. They are photoprotective compounds in bryophytes, since they have been recognized as UV-absorbing substances [51] [52].…”

Section: Functions Against Bioticmentioning

confidence: 99%

Secondary Metabolites in Bryophytes: An Ecological Aspect

Xie

Lou

2009

Chemistry & Biodiversity

126

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“…Widely distributed in Qinghai, Gansu, Inner Mongolia, Heilongjiang, Tibet and Sichuan in China, which can grow normally at an altitude of 1 500 to 4 500 m area. P. glabra and P. parvifolia are also referred to varietas of P. fruticosa [19], for the taxonomic status of the shrubby Potentilla is uncertain [12]. To our knowledge, the research of the phytochemicals and antioxidant properties for them are poorly investigated.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical profiles, antioxidant and antimicrobial activities of three Potentilla species

Wang

et al. 2013

BMC Complement Altern Med

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BackgroundExtracts from Potentilla species have been applied in traditional medicine and exhibit antioxidant, hypoglycemic, anti-inflammatory, antitumor and anti-ulcerogenic properties, but little has been known about the diversity of phytochemistry and pharmacology on this genus. This study investigated and compared the phytochemical profiles, antioxidant and antimicrobial activities of leaf extracts from three Potentilla species (Potentilla fruticosa, Potentilla glabra and Potentilla parvifolia) in order to discover new resources for lead structures and pharmaceutical products.MethodsChemical composition and content of six phenolic compounds were evaluated and determined by RP-HPLC; Total phenolic and total flavonoid content were determined using Folin-Ciocalteau colourimetric method and sodium borohydride/chloranil-based method (SBC); Antioxidant activities were determined using DPPH, ABTS and FRAP assays; Antimicrobial properties were investigated by agar dilution and mycelial growth rate method.ResultsThe results showed hyperoside was the predominant phenolic compound in three Potentilla species by RP-HPLC assay, with the content of 8.86 (P. fruticosa), 2.56 (P. glabra) and 2.68 mg/g (P. parvifolia), respectively. The highest content of total identified phenolic compounds (hyperoside, (+)-catechin, caffeic acid, ferulic acid, rutin and ellagic acid) was observed in P. parvifolia (14.17 mg/g), follow by P. fruticosa (10.01 mg/g) and P. glabra (7.01 mg/g). P. fruticosa possessed the highest content of total phenolic (84.93 ± 0.50 mmol gallic acid equivalent/100 g) and total flavonoid (84.14 ± 0.03 mmol quercetin equivalent/100 g), which were in good correlation with its significant DPPHIC50 (16.87 μg/mL), ABTS (2763.48 μmol Trolox equivalent/g) and FRAP (1398.70 μmol Trolox equivalent/g) capacities. Furthermore, the effective methodology to distinguish the different species of Potentilla was also established by chromatographic fingerprint analysis for the first time. The results of antimicrobial activities showed P. fruticosa exhibited the strongest inhibition aganist Gram-positive bacteria, Pseudomonas aeruginosa and Candida albicans with MIC values of 0.78–6.25 mg/mL. P. parvifolia possessed antibacterial and antifungal activities against all the microorganisms tested, with EC50 and MIC values of 20.52–47.02 mg/mL and 0.78–50 mg/mL, respectively.ConclusionsThese results indicated that leaf extracts from three Potentilla species could become useful supplement for pharmaceutical products as a new antioxidant and antimicrobial agents.

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“…The small number of achenes formed in each encapsulated flower may be explained by the existence of partial self-incompatibility. The self-incompatibility of P. fruticosa has indeed already been demonstrated by Davidson & Lenz (1989), and according to these authors it may be of genetic origin. In our experimental work we detected no agamospermy phenomena in this species.…”

Section: Self-incompatibility Agamospermy and Hybridizationmentioning

confidence: 67%

“…Davidson & Lenz, 1989). Its complex inflorescence, long flowering period and multiple stamens indicate that sexual reproduction in this taxon requires much more energy than in any other of the studied species.…”

Section: Pollination Modelsmentioning

confidence: 94%

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Guillén¹,

Rico²,

Castroviejo³

2005

Anal. Jard. Bot. Madr.

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Several processes related to the reproductive biology of the Iberian species of the genus Potentilla L. subg. Trichothalamus (Spreng.) Rchb., Comarum (L.) Syme and Fragariastrum (Heist. ex Fabr.) Rchb. are studied. We provide data concerning compatibility, agamospermy and hybridization along with pollination and fruit dispersal. No agamospermy mechanisms were found in any of the taxa, nor were there signs of any hybridization, although potential signs of self-incompatibility were detected. Regarding to pollination, a marked tendency toward autogamy was observed in certain groups. Finally, some mechanisms for the release and dispersal of diaspores are described in relation to diaspore and flower receptacle morphology.Keywords: agamospermy, dispersal, elaiosome, hybridization, Iberian Peninsula, pollination, Potentilla, self-incompatibility, subg. Trichothalamus, subg. Comarum, subg. Fragariastrum. ResumenSe exponen los resultados del estudio de algunos mecanismos de la biología reproductiva en las especies ibéricas de Potentilla L. subg. Trichothalamus (Spreng.) Rchb., Comarum (L.) Syme y Fragariastrum (Heist. ex Fabr.) Rchb. Se aportan datos que afectan a la compatibilidad, agamospermia e hybridización a lo largo de las fases de polinización y dispersión del fruto. No se observaron mecanismos de agamospermia en ninguno de los tá-xones estudiados ni tampoco se comprobó hibridación alguna, aunque se detectaron signos potenciales de autoincompatibilidad. Relacionado con la polinización, se observó en ciertos grupos una clara tendencia a la autogamia. Se describen, por últi-mo, algunos mecanismos de liberación y dispersión de diáspo-ras, que están relacionados con la morfología de la propia diás-pora y del receptáculo floral.

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Experimental taxonomy of Potentilla fruticosa

Cited by 7 publications

References 13 publications

Secondary Metabolites in Bryophytes: An Ecological Aspect

Secondary Metabolites in Bryophytes: An Ecological Aspect

Phytochemical profiles, antioxidant and antimicrobial activities of three Potentilla species

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