Plant polyphenols. 2. The coumarins of <i>Solanum pinnatisectum</i>

Harborne, Jeffrey B.

doi:10.1042/bj0740270

Cited by 36 publications

(7 citation statements)

References 5 publications

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“…Only cyanidin 3-glucoside occurs in this putatively primitive representative. This result is consistent with the recent hypothesis (Harborne 1977) that simple 3-glucosylation of cyanidin represents a primitive character state. By contrast, glucosylation at the 5-position and more complex glycosylation (such as the occurrence of rutinose) at the 3-position represent derived chemical character states in the more advanced tribes.…”

Section: Floral Anthocyaninssupporting

confidence: 82%

“…The fluorescent compound was shown to be the coumarin, aesculetin. The chromatographic properties of the fluorescent compound in BA W, 15% HOAc, and water and its UV spectroscopic properties were identical in all respects with those reported for aesculetin (Harborne 1960;Brackenridge 1967). …”

Section: Nectar Odor -As Noted Insupporting

confidence: 55%

“…Floral anthocyanins were purified and identified by paper chromatography using standard methods (Harborne 1967).…”

Section: Methodsmentioning

confidence: 99%

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Reproductive Phytochemistry of Bombacaceae

Scogin¹

1986

aliso

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Floral anthocyanins among Bombacaceae exhi6it minimal variation and consist of three commonly occurring cyanidin glycosides. Cyanidin 3-rutinoside occurs uniquely in the genus Pachira among taxa surveyed. Nectars are characterized by copious volumes and being somewhat dilute and hexose rich with respect to sugars. No evidence is detectable among Bombacaceae for a nonfiying-mammal floral chemistry syndrome which is distinguishable from a bat-visitation syndrome.

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Section: Floral Anthocyaninssupporting

confidence: 82%

Section: Nectar Odor -As Noted Insupporting

confidence: 55%

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Reproductive Phytochemistry of Bombacaceae

Scogin¹

1986

aliso

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“…However, data obtained were not adequate to characterize the two minor phenolics yielding glucose as glycosides or glucose-esters. The absorption spectrum of the principal compounds is not in agreement with that of a number of other natural phenolic and related substances (Harborne and Corner, 1961;Harborne, 1960;Lemon, 1947;Campbell and Coppinger, 1951;Morton and Stubbs, 1940). On the other hand, both the absorption spectrum and the bathochromic shifts are similar, if not identical, to those of the methyl ester of caffeic acid (Harborne,19(4).…”

Section: Results -mentioning

confidence: 96%

The Stigmatic Secretion of the Sweetpotato

Martin

Telek

1971

American J of Botany

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The stigmatic exudate of sweetpotato, when removed with organic solvents, consisted chiefly of lipid and phenolic compounds. Only traces of sugar were obtained. The esterified lipids were similar in chain length to capric and lauric acids. The two prinicpal phenolic compounds have UV absorption peaks, and bathochromic shifts on ionization with NaOH similar to those of esters of caffeic acid. On acid hydrolysis, caffeic acid was obtained from these and from three minor phenolic compounds. From two of the minor phenolic compounds, glucose was released by hydrolysis. The phenolic content of stigmas increased up to 20–24 hr before anthesis, and then gradually decreased. Neither compatible nor incompatible pollination affects the amount or composition of the stigmatic exudate.

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“…Aerial parts are used to relief stomach pains [8] . Chicory's flowers are source of cichoriin which is known to be sensitive to light [9] . Similarly, lactucin, extracted from chicory roots, is found to be sensitive to light [1,10] .…”

Section: Introductionmentioning

confidence: 99%

Sensitization of Photohemolysis by a New Extraction from Flowers and Aerial Parts of Cichorium Pumilum Jacq: Effects of Inulin and Hydrogen Peroxide

Al-Akhras¹,

Amin²,

Mohammad³

et al. 2007

American J. of Pharmacology and Toxicology

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Addition of inulin and hydrogen peroxide to new photosensitizers extracted from the flowers and aerial parts of the chicory (Cichorium Pumilum Jacq) have been investigated. Some of the isolated photosensitizers remain unidentified compounds. Chicory extracts are found to be dependent on light and temperature. Higher photohemolysis rate was noticed under the influence of light as compared to temperature. The effect of H 2 O 2 on phototoxicity reported in this study showed a rapid reduction in the fractional hemolysis percentage at higher temperature. Compared to erythrocytes with higher concentrations and under the influence of solar irradiance 505.29±24.96w/m 2 , erythrocytes with lower concentrations of inulin and H 2 O 2 were ruptured faster. Samples with 0.95mg/ml of herb extract and different concentrations of inulin (1mg/ml -2mg/ml) shows no temperature effects at 40 C in the absent of sunlight.

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Plant polyphenols. 2. The coumarins of Solanum pinnatisectum

Cited by 36 publications

References 5 publications

Reproductive Phytochemistry of Bombacaceae

Reproductive Phytochemistry of Bombacaceae

The Stigmatic Secretion of the Sweetpotato

Sensitization of Photohemolysis by a New Extraction from Flowers and Aerial Parts of Cichorium Pumilum Jacq: Effects of Inulin and Hydrogen Peroxide

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