3,4,8,9,10-Pentahydroxy-dibenzo[b,d]pyran-6-one from Tamarix nilotica

Nawwar, Mahmoud A.M.; Souleman, Ahmed M. A.

doi:10.1016/0031-9422(84)83057-5

Cited by 47 publications

(25 citation statements)

References 4 publications

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“…19 The decreased root branching we observed when Arabidopsis was treated with ellagic acid (and derivatives) might arise from a similar mechanism. It is also interesting to note that ellagic acid has been reported to occur in roots of Tamarix nilotica, 17 a congener of tamarisk (Tamarix ramosissima Ledeb. ), an invasive species of riparian areas in the southwest United States.…”

Section: Discussionmentioning

confidence: 99%

Phytotoxic Allelochemicals From Roots and Root Exudates of Leafy Spurge (Euphorbia esulaL.)

Qin

Perry

Broeckling

et al. 2006

Plant Signaling & Behavior

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Invasive plants are a widespread problem but the mechanisms used by these plants to become invasive are often unknown. The production of phytotoxic natural products by invasive weeds is one mechanism by which these species may become successful competitors. Here, we conducted a bioactivity-driven fractionation of root extracts and exudates from the invasive plant leafy spurge (Euphorbia esula L.), and structurally characterized jatrophane diterpenes and ellagic acid derivatives. Ellagic acid derivatives and one of the jatrophane diterpenes, esulone A, have been previously reported from leafy spurge, but another of the jatrophane diterpenes, kasuinine B, has not. We show that these compounds are phytotoxic but affect plants in different ways, either inducing overall plant necrosis or reducing root branching and elongation.

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Section: Discussionmentioning

confidence: 99%

Phytotoxic Allelochemicals From Roots and Root Exudates of Leafy Spurge (Euphorbia esulaL.)

Qin

Perry

Broeckling

et al. 2006

Plant Signaling & Behavior

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“…Many phenolic compounds include Nilocitin, Ellagic acid, Gallic acid and some derivatives were isolated from leaves, flowers, roots and the aerial parts of T. nilotica [8,19,[23][24][25][26][27]. All the chemical constituents that have been reported in the literature from T. nilotica were listed in Table 2 ( Figure 1).…”

Section: Phenolicsmentioning

confidence: 99%

Tamarix nilotica (Ehrenb) Bunge: A Review of Phytochemistry and Pharmacology

Abdelgawad¹

2017

J Microb Biochem Technol

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“…Urolithins are not common molecules in nature, but they have been reported in plants rich in ellagitannins, as it is the case of Tamarix nilotica flowers [13] and Punica granatum leaves that contain urolithin M-5 (3,4,8,9,10-pentahydroxy-dibenzo[ b,d ]pyran-6-one) [14]. They have also been found in some herbivore-derived products, such as the castoreum produced by beavers [15], a product of interest for the perfume industry, and the Pteropi faeces (faeces of the squirrel Trogopterus xanthipes ) that are used in traditional Chinese medicine [16].…”

Section: Introductionmentioning

confidence: 99%

Biological Significance of Urolithins, the Gut Microbial Ellagic Acid-Derived Metabolites: The Evidence So Far

Espı́n

Larrosa

Garcı́a-Conesa

et al. 2013

Evidence-Based Complementary and Alternative Medicine

449

430

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The health benefits attributed to pomegranate have been associated with its high content in polyphenols, particularly ellagitannins. This is also the case for other ellagitannin-containing fruits and nuts including strawberry, raspberry, blackberry, walnuts, and muscadine grapes. The bioavailability of ellagitannins and ellagic acid is however very low. These molecules suffer extensive metabolism by the gut microbiota to produce urolithins that are much better absorbed. Urolithins circulate in plasma as glucuronide and sulfate conjugates at concentrations in the range of 0.2–20 μM. It is therefore conceivable that the health effects of ellagitannin-containing products can be associated with these gut-produced urolithins, and thus the evaluation of the biological effects of these metabolites is essential. Recent research, mostly based on in vitro testing, has shown preliminary evidence of the anti-inflammatory, anticarcinogenic, antiglycative, antioxidant, and antimicrobial effects of urolithins, supporting their potential contribution to the health effects attributed to pomegranate and ellagitannin-rich foods. The number of in vivo studies is still limited, but they show preventive effects of urolithins on gut and systemic inflammation that encourage further research. Both in vivo and mechanistic studies are necessary to clarify the health effects of these metabolites. Attention should be paid when designing these mechanistic studies in order to use the physiologically relevant metabolites (urolithins in gut models and their conjugated derivatives in systemic models) at concentrations that can be reached in vivo.

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3,4,8,9,10-Pentahydroxy-dibenzo[b,d]pyran-6-one from Tamarix nilotica

Cited by 47 publications

References 4 publications

Phytotoxic Allelochemicals From Roots and Root Exudates of Leafy Spurge (Euphorbia esulaL.)

Phytotoxic Allelochemicals From Roots and Root Exudates of Leafy Spurge (Euphorbia esulaL.)

Tamarix nilotica (Ehrenb) Bunge: A Review of Phytochemistry and Pharmacology

Biological Significance of Urolithins, the Gut Microbial Ellagic Acid-Derived Metabolites: The Evidence So Far

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