This study explored the changes in photosynthetic characteristics of Fengdan peony under high-temperature stress to provide a reference for understanding tolerance plants heat stress. In this study, effects (40 °C) on leaves were studied. At 25 °C, net rate (Pn), stomatal conductance (Gs), and transpiration (Tr) decreased gradually with increase time, intercellular CO2 concentration (Ci) first ...

Extracts of 19 selected edible flowers were investigated for their free radical scavenging activity (FRSA), polyphenolic contents and flavonoid contents in the paper. The results showed the extracts of Paeonia suffruticosa Andr., Paeonia lactiflora Pall., and Rosa rugosa Thunb. possessed obviously stronger DPPH FRSA (94.221 ± 0.102; 93.739 ± 0.424 and 94.244 ± 0.163%, respectively), superoxide ...

Dried ground plant tissues from 20 leguminous species were mixed with Meloidogyne incognita-infested soil at 1, 2 or 2.5, and 5% (w/w) and incubated for 1 week at room temperature (21 to 27 degrees C). Tomato ('Rutgers') seedlings were transplanted into infested soil to determine nematode viability. Most tissues reduced gall numbers below the non-amended controls. The tissue amendments that wer...

Two new monoterpene diglycosides, suffruyabiosides A and B, and seven known compounds 3-9 were isolated from Moutan Cortex (root cortex of Paeonia suffruticosa Andrews). The structures were elucidated on the basis of 2D NMR spectral data. Suffruyabiosides A and B are rare monoterpene diglycosides, including a cellobiose in the molecules. Salicylpaeoniflorin (4) had a antiproliferation effect si...

In this paper the effect of herbivory on the seed production of Moricandia moricandioides (Cruciferae), an annual species living in arid habitats of southeastern Spain, is analysed. Firstly, the flowering and fruiting phenology and the composition and structure of the pollinator guild is described, in order to compare the overall effect of mutualistic species vs. that of antagonistic species on...