Little is known about the competition between and niche differentiation of water nutrients angiosperm gymnosperm tree species under prolonged drought stress, especially in fragile environments. We imposed 21 d treatments on Broussonetia papyrifera Platycladus orientalis measured water, N, P contents, isotopic composition N C, activity assimilation enzymes, stomatal conductance solo planting mix...

Recently, the formation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) have been implicated in the oxidative deterioration of food products as well as in the pathogenesis of several human diseases such atherosclerosis, diabetes mellitus, chronic inflammation, neurodegenerative disorders and certain types of cancer. Plant secondary metabolites mainly phenolics and flavonoid...