Related Experiment Video
Updated: Jul 19, 2026
10:40
Visualizing Lignification Dynamics in Plants with Click Chemistry: Dual Labeling is BLISS!
Published on: January 26, 2018
A new lignan from Smilax bockii warb
1Research Department of Natural Medicine, Shenyang Pharmaceutical University, China.
Die Pharmazie
|October 6, 2006
Abstract:
A new lignan named (-)-isolariciresinol 9'-carboxylic acid methyl ester has been isolated from the roots of Smilax bockii warb. The structure of the new lignan was determined on the basis of spectral and chemical studies.
Related Concept Videos
03:24Seedless Vascular Plants
Seedless Vascular Plants Were the First Tall Plants on Earth
02:12Short-distance Transport of Resources
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
02:26Non-vascular Seedless Plants
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
01:16Vascular Spasm
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...