A chemosystematic study of some geraniaceae

Saleh, Nabiel A.M.; El-Karemy, Z. A. R.; Mansour, Ragaa M.A.; Fayed, A. A.

doi:10.1016/0031-9422(83)80148-4

Cited by 20 publications

(13 citation statements)

References 5 publications

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“…Although quercetin 3-O-glucuronide was not previously identified in the study by Saleh et al, [25] our study is in accordance with Graça et al, [26] which defined the phenolic profile of Geranium molle L. (Geraniaceae). Also, no myricetin derivatives were found in the mentioned study by Saleh et al, [25] while in this study one derivative of myricetin (myricetin 3-…”

Section: Resultssupporting

confidence: 92%

“…Only as an example, the base peak chromatogram of one E. cicutarium water extract (Podvinje) with labeled peaks of some of the identified compounds is shown in Figure 1S. The presence of phenolics is similar among localities and only the [4,11,19,21,23,25,26] According to Saleh et al, [25] the subsection Cicutaria was characterized by rutin as the major component. In our study, rutin was identified in both water and methanolic extracts, from all four locations and also quantified, as it can be seen in following results.…”

Section: Resultsmentioning

confidence: 94%

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First Extensive Polyphenolic Profile of Erodium cicutarium with Novel Insights to Elemental Composition and Antioxidant Activity

Bilić

Gašić

Milojković‐Opsenica

et al. 2020

Chemistry & Biodiversity

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Erodium cicutarium is known for its total polyphenolic content, but this work reveals the first highly detailed profile of E. cicutarium, obtained with UHPLC‐LTQ OrbiTrap MS4 and UHPLC‐QqQ‐MS/MS techniques. A total of 85 phenolic compounds were identified and 17 constituents were quantified. Overall, 25 new compounds were found, which have not yet been reported for the Erodium genera, or the family Geraniaceae. Along with methanolic extracts, the so far poorly investigated water extracts exhibited in vitro antioxidant activity according to all performed assays, including the ferric reducing/antioxidant power assay (FRAP), 2,2‐diphenyl‐1‐picrylhydrazyl assay (DPPH), 2,2′‐azinobis(3‐ethylbenzthiazoline‐6‐sulfonic acid) assay (ABTS) and cupric ion reducing antioxidant capacity assay (CUPRAC). Elemental composition analysis performed with inductively coupled plasma atomic emission spectrometry (ICP‐AES) and, additionally, hydride generation atomic absorption spectrometry (HydrEA‐ETAAS) showed six most abundant elements to be decreasing as follows: Mg>Ca>K>S>P>Na, and gave first data regarding inorganic arsenic content (109.3–248.4 ng g−1). These results suggest E. cicutarium to be a valuable source of various phenolic compounds with substantial potential for further bioactivity testing.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 94%

First Extensive Polyphenolic Profile of Erodium cicutarium with Novel Insights to Elemental Composition and Antioxidant Activity

Bilić

Gašić

Milojković‐Opsenica

et al. 2020

Chemistry & Biodiversity

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“…This is based on evidence that most strains of P. s. syringue attack a wide range of plant hosts (Bradbury, 1986) and that they recognize phenolic signal molecules that are found in t h e leaves, bark, and flowers of many plant species (Mo and Gross, 1991b;Quigley and Gross, 1994). Moreover, the flavonol glycoside signals, quercetin 3-rutinosyl-4'-glucoside and kaempferol 3-rutinosyl-4'-glucoside, were reported by Saleh et al (1983) to occur i n five species of Erodium (Geraniaceae subsection Mulucoidea) as the major flavonoid glycosides in foliar tissues. Therefore, the occurrence of a sensory mechanism for specific phenolic glycosides is advantageous because it signals the bacterium to activate rapidly virulence genes in a favorable plant environment.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Sweet cherry (Prunus avium L.) Leaves for Plant Signal Molecules That Activate the syrB Gene Required for Synthesis of the Phytotoxin, Syringomycin, by Pseudomonas syringae pv syringae

Geibel

Bonsall

et al. 1995

Plant Physiol.

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An important aspect of the interaction of Pseudomonas syringae pv syringae with plant hosts is the perception of plant signal molecules that regulate expression of genes, such as syrll, required for synthesis of the phytotoxin, syringomycin. I n this study, the leaves of sweet cherry (Prunus avium 1.) were analyzed to determine the nature of the syrB-inducing activity associated with tissues of a susceptible host. Crude leaf extracts yielded high amounts of total signal activity of more than 12,000 units g-' (fresh weight) based on activation of a syr6-lacZ fusion in strain B3AR132. l h e signal activity was fractionated by C,, reversed-phase high-performance liquid chromatography and found to be composed of phenolic glycosides, which were resolved i n three regions of the high-performance liquid chromatography profile, and sugars, which eluted with the void volume. Two flavonol glycosides, quercetin 3-rutinosyl-4'-glucoside and kaempferol 3-rutinosyl-4'-glucoside, and a flavanone glucoside, dihydrowogonin 7-glucoside, were identified. l h e flavonoid glycosides displayed similar specific signal activities and were comparable in signal activity to arbutin, a phenyl p-glucoside, giving rise to between 120 and 160 units of /3-galactosidase activity at 10 p~. Although o-fructose exhibits intrinsic low leve1 syrll-inducing signal activity, o-fructose enhanced by about 10-fold the signal activities of the flavonoid glycosides at low concentrations (e.g. 10 PM). This demonstrates that flavonoid glycosides, which represent a new class of phenolic plant signals sensed by P. s. syringae, are i n sufficient quantities in the leaves of P. avium to activate phytotoxin synthesis.Bacteria commonly detect in the plant environment specific phenolic compounds that serve as signals in regulating expression of genes critica1 to phytopathogenesis (Peters and Verma, 1990). This was first observed for Agrobacterium tumefaciens, which senses in wounded tissues

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“…An increased monoterpene production (= qualitative defense) could result in a diminished investment of the plant to other (quantitative) defense compounds and the ability to allocate more resources to growth and reproduction. Likely candidates of other defense compounds may be flavonoids (Saleh et al, 1983) and phenolic acids (Fecka et al, 2001), which are contained in E. cicutarium at high concentrations. Our results do not allow for a comparison of biochemical costs in relation to biomass and reproductive outcome, as we only measured one (i.e., terpenoids) out of several important compound classes.…”

Section: Seed Origin and Terpenoid Contentsmentioning

confidence: 99%

Past Competition Affects Offspring Foliar Terpenoid Concentrations, Seed Traits, and Fitness in the Invasive Forb Erodium cicutarium (Geraniaceae)

Eilers

Heger

2019

Front. Ecol. Evol.

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Environmental conditions experienced in the past may lead to intraspecific differences in ecological and chemical traits of plants, which likely affect future responses to altered or new environments. Whether competition by neighbors is such a trait-shaping factor is not yet well-known. We aimed to understand how the level of ancestral plant competition affects traits related to plant fitness and resource allocation, reproduction, and (phyto-)toxin accumulation in offspring, and whether a potential differentiation in these traits can be found in different geographic origins of which one belongs to the native and one to the invaded range. (2) We compared differentiation of the following traits in offspring plants of multiple populations in Erodium cicutarium (Geraniaceae): biomass, seed production, seed traits related to dispersal and germination, and concentrations of foliar mono-and sesquiterpenes. We tested the allelopatic potential of aqueous extracts of the same E. cicutarium plants on seeds of five different plant families. (3) In plants originating from populations that experienced high levels of competition, we found twice as high monoterpene concentrations. These plants also produced more biomass and a higher proportion of ripe to unripe seeds until harvesting. Seeds originating from high competition sites were shorter. Aqueous E. cicutarium leaf extracts with high terpenoid content reduced radicle length of Zea mays and radicle and hypocotyl length of E. cicutarium seedlings. (4) The results of this study provide first evidence that the surrounding vegetation may shape chemo-ecological plant traits that may be fundamental for competitive ability. Our study calls for more research testing whether competition experienced in the native range may lead to an enhanced capability of plants to establish populations and spread in a new range.

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A chemosystematic study of some geraniaceae

Cited by 20 publications

References 5 publications

First Extensive Polyphenolic Profile of Erodium cicutarium with Novel Insights to Elemental Composition and Antioxidant Activity

First Extensive Polyphenolic Profile of Erodium cicutarium with Novel Insights to Elemental Composition and Antioxidant Activity

Analysis of Sweet cherry (Prunus avium L.) Leaves for Plant Signal Molecules That Activate the syrB Gene Required for Synthesis of the Phytotoxin, Syringomycin, by Pseudomonas syringae pv syringae

Past Competition Affects Offspring Foliar Terpenoid Concentrations, Seed Traits, and Fitness in the Invasive Forb Erodium cicutarium (Geraniaceae)

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