Antibacterial Activity of the Flavonoids from Dalbergia odorifera on Ralstonia solanacearum

Abstract

Phytohemical investigation on the heartwood of Dalbergia odorifera resulted in the isolation of nine flavonoids. Their structures were elucidated as sativanone (1), (3R)-vestitone (2), (3R)-2',3',7-trihydroxy-4'-methoxyisoflavanone (3), (3R)-4'-methoxy-2',3,7-trihydroxyisoflavanone (4), carthamidin (5), liquiritigenin (6), isoliquiritigenin (7), (3R)-vestitol (8), and sulfuretin (9) based on their spectral data. All compounds were evaluated for their inhibitory activity against Ralstonia solanacearum. This is the first report about anti-R. solanacearum activity of the compounds from D. odorifera.

Inhibitory Effect of Cow Urine Extracts of Selected Plants against Pathogens Causing Rhizome Rot of Ginger

“…Due to this, research focused on compounds derived from natural sources such as plant extracts and ible application in agriculture is being intensified. Many natural products, including plant extracts, have been shown to possess marked inhibitory activity against a variety of pathogens ., 2000 ;Benkeblia, 2004;Bhai et al, 2005;Bajpai et al, 2008;Paret Ranaware et al, 2010;Zhao et al, 2011;Tiwari and Das, 2011;Bhardwaj et al, 2011;De Britto 2011).…”

Ethanol extract of Dalbergia odorifera protects skin keratinocytes against ultraviolet B-induced photoaging by suppressing production of reactive oxygen species

“…13) Several components from the heartwood of D. odorifera, including flavonoids, quinines, and phenolic constituents, exhibit diverse biological activities. 14,15) These effects include up-regulation of anti-inflammatory heme oxygenase-1 expression in murine macrophages, 16,17) antibacterial activity in Ralstonia solanacearum, 18) and protection against glutamate-induced oxidative injury in mouse hippocampal HT22 cells. 19) Furthermore, sativanone, a polyphenol compound having two benzene rings (MW301.1) from D. odorifera, inhibits LPS-stimulated nitric oxide release and tumor necrosis factor-α secretion in RAW264.7 cells.…”

Leaf and Stem Anatomy and Histochemistry of Dalbergia ecastaphyllum

“…Secretory elements of D. ecastophyllum are found into the vascular system of the midrib, petiole and stem, which differ from the secretory elements of Myrocarpus, in which the secretory structures are located in the cortex of midrib. 34 Phytochemical studies have reported the presence of phenolic compounds such as flavonoids, isoflavonoids, as well as other substances in species of Dalbergia referred by Liu et al 35 , Zhao et al 36 andSaha et al, 5 amongsto thers, as well as by Matos et al 37 forDalbergia ecastophyllum.The presence of phenolic compounds was evidenced by histochemical tests performed in leaf and stems of D. ecastaphyllum.…”