Existence form
1. Free sugar form: Rhamnose exists in the form of free sugar in some plants, such as the leaves and flowers of Rhus verniciflua.
2. Glycoside form: Rhamnose also exists in the form of various glycosides such as rutin. These glycosides usually have specific biological activities or pharmacological effects.
3. Polysaccharide constituent sugar: In plant gums and bacterial polysaccharides, rhamnose is one of the constituent sugars. These polysaccharides play an important physiological function in organisms.
Distribution range
1. Plant kingdom: Rhamnose is distributed in many plants, especially certain specific types of plants, such as plants of the Anacardiaceae family. In addition, in plant gums, such as gum arabic, rhamnose is also an important component.
2. Microbial kingdom: In bacteria, rhamnose exists on the cell surface in the form of polysaccharides or lipopolysaccharides. These polysaccharides play an important role in bacterial adhesion, recognition, signal transduction, etc.
3. Other organisms: In addition to plants and bacteria, rhamnose may also exist in other organisms, but the specific distribution and content may vary depending on the species and growth environment.