Evolution of yellow flavonols in flowers of anthemideae

Harborne, Jeffrey B.; Heywood, V. H.; King, L. Carroll

doi:10.1016/0305-1978(76)90002-8

Cited by 20 publications

(3 citation statements)

References 3 publications

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“…Harborne et al (1976) reported quercetin, quercetagetin, and patuletin 7-0-glucosides from C. myconis. Wilcox (1984) reported kaempferol, quercetin and, quercetagetin from C. myconis and C. multicaulis.…”

Section: Flavonoid Datamentioning

confidence: 97%

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Flavonoids of the Sunflower Family (Asteraceae)

Bohm

Stuessy

2001

120

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This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machines or similar means, and storage in data banks. This book is dedicated to:Arthur Cronquist Outstanding plant systematist and major contributor to understanding taxonomic relationships within Asteraceae and Ralph E. Alston (1925Alston ( -1967) Visionary natural products chemist and geneticist who pioneered the use of chemical data in studies of plant systematics and evolution PrefaceCertainly many of the readers of this book will remember the early developments of chemosystematics in the late 1950s. We ourselves remember the excitement of these new data bearing on plant interrelationships. The hopes were high, the techniques were rapidly evolving, the quantities of data were large, and young workers were eagerly enthusiastic. Some even went so far as to predict that chemical data would soon replace morphological information as the basis for plant classification. These overly zealous predictions did not materialize, of course, as the history of plant systematics has amply shown during the past two centuries. If there is any distinct characteristic of systematics it is synthesis, as Lincoln Constance (1964) called it, the "unending synthesis." New tools generate new data and provide insights on additional dimensions of plant relationships. This will never change-we will continue to discover new tools and new data in the years ahead, and they will continue to be incorporated into the predictive general reference system of classification.The earlier efforts in chemosystematics focused on secondary plant products: alkaloids, betacyanins, carbohydrates, cyanogenic glycosides, glucosinolates, lipids, terpenoids, and especialiy flavonoids. The latter were particularly well suited for chemosystematic investigation for several reasons: ease of isolation and characterization, small amounts of plant material needed for analysis, stability of compounds especially through routine preparation of herbarium specimens, and low cost to obtain useful information. As a result of these considerable advantages, literally thousands of studies on use of flavonoids in plant systematics have been published. Although now with the present zest for macromolecular data from DNA restriction sites and sequences, there are fewer workers and laboratories dedicated to flavonoid chemosystematic studies; twenty years ago they were the new currency of exciting data in plant systematics.Because of many workers historically interested in the sunflower family, Asteraceae (or Compositae), in part due to its large size (approximately 23,000 species;Bremer, 1994), and because hundreds of flavonoid compounds were discovered in this family, many chemosystematic investigations have been completed on various taxa. Many studies came from the laboratories of R. A. Alston, B. L. Turner, and T. J. Mabry in the Department of Botany ...

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Section: Flavonoid Datamentioning

confidence: 97%

“…Greger (1969) reported kaempferol and isorhamnetin from L. repandum (cited as L. grisleyi). Harborne et al (1976) reported the 7-0-glucosides of quercetin, quercetagetin, patuletin, quercetagetin 3'-methyl ether, and quercetagetin-6,3'-dimethyl ether (spinacetin) from flowers and patuletin 3-0-rhamnoside from leaves.…”

Section: Flavonoid Datamentioning

confidence: 98%

Flavonoids of the Sunflower Family (Asteraceae)

Bohm

Stuessy

2001

120

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“…e chemical structure of isolated constituents 1 and 2 was identified by advanced spectroscopic analysis and comparing the spectral and physical data with reported data [18][19][20].…”

Section: Extraction and Isolationmentioning

confidence: 99%

In Vivo Anti-Inflammatory, Analgesic, Sedative, Muscle Relaxant Activities and Molecular Docking Analysis of Phytochemicals from Euphorbia pulcherrima

Aljohani

Alhumaydhi

Hamad

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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Euphorbia pulcherrima is an important medicinal plant that is used in a traditional system for its curative properties such as analgesic potency, antipyretic, anti-inflammatory, sedation potential, and antidepressant and cure of diseases such as skin diseases. This study deals with the isolation of two flavonoids namely spinacetin (1) and patuletin (2) from chloroform fraction of Euphorbia pulcherrima. The isolated compound spinacetin (1) and patuletin (2) were screened for in vivo anti-inflammatory, analgesic, sedative, and muscle relaxant effects. Compounds 1 and 2 were assessed against hot plate-induced noxious stimuli at various doses which showed excellent ( p < 0.05 ) analgesic effect in a dose-dependent manner. The muscle relaxant activity was determined by traction and inclined screening model, both compounds showed significant muscle relaxant activity with time. The sedative potential of isolated compounds 1 and 2 was determined by the open field model, both compounds showed good sedation ( p < 0.05 ) at 20 mg/kg. The anti-inflammatory potential of compound 1 was recorded by histamine-induced paw edema and carrageen paw edema model, and in both models, compounds 1 and 2 showed strong effect at 20 mg/kg. Binding orientations, binding energy values, and computed inhibition constants (Ki) values revealed that the studied compounds have a good to excellent inhibition potential against μ-opioid receptors and COX-2.

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Flavonoids and flower colour

Brouillard¹

1988

The Flavonoids

164

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Evolution of yellow flavonols in flowers of anthemideae

Cited by 20 publications

References 3 publications

Flavonoids of the Sunflower Family (Asteraceae)

Flavonoids of the Sunflower Family (Asteraceae)

In Vivo Anti-Inflammatory, Analgesic, Sedative, Muscle Relaxant Activities and Molecular Docking Analysis of Phytochemicals from Euphorbia pulcherrima

Flavonoids and flower colour

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