| [occurence of diarylheptanoids in corylus species native to hungary]. | since the last decade naturally occurring diarylheptanoids have been in the focus of scientific interest due to their various. beneficial biological effects. besides the outstanding importance of the curcuminoids isolated from members of the curcuma genus (zingiberaceae), several different diarylheptanoids identified in alnus species (betulaceae) have been proved to possess notable pharmacological effects. chemoprotective, neuroprotective, hepatoprotective, antiviral, antibacterial, antiinflamma ... | 2015 | 26137784 |
| first characterisation of flavonoid- and diarylheptanoid-type antioxidant phenolics in corylus maxima by hplc-dad-esi-ms. | corylus maxima mill. (betulaceae) leaves have been used in traditional medicine both internally and externally, nevertheless phytochemical exploration of the plant remains incomplete. in this study, the in vitro antioxidant activity and polyphenolic composition of the ethyl acetate and methanolic extracts of c. maxima leaves and bark are reported for the first time. the radical scavenging activities of the extracts were investigated by the abts and dpph assays. all the extracts of c. maxima poss ... | 2015 | 25594894 |
| effects of leaf wetting and high humidity on stomatal function in leafy cuttings and intact plants of corylus maxima. | when rooted cuttings of corylus maxima mill. cv. purpurea are moved from the wet and humid conditions of the rooting environment, the leaves frequently shrivel and die. since the newly formed adventitious root system has been shown to be functional in supplying water to the shoot, stomatal behaviour in c. maxima was investigated in relation to the failure to prevent desiccation. stomatal conductance (gs) in expanding leaves (l3) of cuttings increased almost 10-fold over the first 14 days in the ... | 2001 | 12060301 |
| decline in stomatal response to leaf water deficit in corylus maxima cuttings. | many woody species can be propagated from leafy cuttings. however, following rooting, cuttings of corylus maxima mill. cv. purpurea do not always survive the transition from a highly supportive rooting environment (e.g., fog) to a more natural environment where evaporative demand is higher. we found that it is not the supply of water to leaves, but stomatal dysfunction that leads to severe water deficits in the rooted cuttings. two hours after well-rooted cuttings were transferred from the rooti ... | 2001 | 11359706 |