Cornusglucosides A and B, Two New Iridoid Glucosides from the Fruit of Cornus officinalis

Jun He1, Yuan Xu1, Jie-Kun Xu2

  • 1Department of Pharmacy & Department of TCM Rheumatism & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, P. R. China.

Chemistry & Biodiversity
|September 6, 2019
PubMed

Related Concept Videos

Fruit Development, Structure, and Function01:58

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
25.0K
Sieving Fruit Pulp to Detect Immature Tephritid Fruit Flies in the Field04:21

Sieving Fruit Pulp to Detect Immature Tephritid Fruit Flies in the Field

Increasing the detection of immature tephritid fruit flies in the field can trigger timely efforts to eliminate populations of these destructive pests. Detecting late instar larvae is faster and more accurate when mushing host fruit in a bag and passing the pulp through a series of sieves than hand cutting and visual...
2.5K
Flavonoid Content During the Growth and Floral Development of Calendula officinalis L.04:54

Flavonoid Content During the Growth and Floral Development of Calendula officinalis L.

Here, we present the aluminum chloride colorimetric method, a direct analytical technique to determine flavonoids in calendula quantitatively. This approach utilizes a straightforward chemical reaction involving treating the calendula extract with an aluminum chloride reagent, forming a colored complex. The color intensity, assessed using spectrophotometry, correlates with the flavonoid...
997
Topical Application Bioassay to Quantify Insecticide Toxicity for Mosquitoes and Fruit Flies09:37

Topical Application Bioassay to Quantify Insecticide Toxicity for Mosquitoes and Fruit Flies

We describe the methodology and importance of the topical application bioassay to measure insecticide susceptibility in mosquitoes and fruit flies. The presented assay is high-throughput, utilizes insect mass-thus allowing for calculating a mass-relativized lethal dose instead of concentration-and likely has lower variability than other similar methods.
7.0K
Studying Aggression in Drosophila (fruit flies)11:06

Studying Aggression in Drosophila (fruit flies)

Aggression is an innate behavior that evolved in the framework of defending or obtaining resources. This complex social behavior is influenced by ...
16.6K
Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions09:34

Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions

A method for rearing Drosophila melanogaster under axenic and gnotobiotic conditions is presented. Fly embryos are dechorionated in sodium hypochlorite, transferred aseptically to sterile diet, and reared in closed containers. Inoculating diet and embryos with bacteria leads to gnotobiotic associations, and bacterial presence is confirmed by plating whole-body Drosophila...
22.2K