melia azedarach/nicotine

Four new triterpenoids, named Toosendansins A-D (1-4), along with nine known ones (5-13) were isolated from the fruits of Melia toosendan Sieb. et Zucc. Their structures were established on the basis of spectroscopic data. The isolation of compounds 1-12 were reported for the first time from this

alpha-Tocopherol (alpha-T) has been identified, using gas chromatography-mass spectroscopy and (1)H- and (13)C-nuclear magnetic resonance, in senescing leaves of Melia azedarach L. The content of alpha-T increased concomitantly with the breakdown of chlorophyll in senescing Vinca and Melia leaves.

Vitis bellula is a new grape crop in southern China. Berries of this species are rich in antioxidative anthocyanins and proanthocyanidins. This study reports cloning and functional characterization of a cDNA encoding a V. bellula dihydroflavonol reductase (VbDFR) involved in the biosynthesis of

The stubby root nematode, Paratrichodorus minor (Colbran, 1956) Siddiqi, 1974, is an economically important species. It not only causes direct damage to the meristemic tissues of plants, but also can be a vector of Tobacco rattle virus and Pepper ringspot virus (2). It has been documented in