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Root mucilage is made of plant-specific polysaccharides or long chains of sugar molecules. [1] [2] This polysaccharide secretion of root exudate forms a gelatinous substance that sticks to the caps of roots. [3] Root mucilage is known to play a role in forming relationships with soil-dwelling life forms.
The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.
Galium aparine is known by a variety of common names in English. They include ' 'sweetheart', 'hitchhikers, cleavers, [2] clivers, bedstraw, (small) goosegrass (not to be confused with other plants known as goosegrass), [2] catchweed, [2] stickyweed, sticky bob, [3] stickybud, stickyback, sticky molly, robin-run-the-hedge, sticky willy, [2] [4] sticky willow, stickyjack, stickeljack, grip ...
Plant seeds exudate a variety of molecules into the spermosphere, [13] and roots exudate into the rhizosphere; these exudates include acids, sugars, polysaccharides and ectoenzymes, and collectively account for 40% of root carbon. [14] Exudation of these compounds has various benefits to the plant and to the microorganisms of the rhizosphere ...
Guttation is the exudation of drops of xylem and phloem sap on the tips or edges of leaves of some vascular plants, such as grasses, and also a number of fungi. Ancient Latin gutta means "a drop of fluid", whence modern botany formed the word guttation to designate that a plant exudes drops of fluid onto the outer surface of the plant, when the ...
Amongst the green algae especially, the group Volvocales are known to produce exopolysaccharides at a certain point in their life cycle. It occurs in almost all plants, but usually in small amounts. It is frequently associated with substances like tannins and alkaloids. [3] Mucilage has a unique purpose in some carnivorous plants.
Low-phosphorus concentrations in the soil increase hyphal growth and branching as well as induce plant exudation of compounds that control hyphal branching intensity. [22] [24] The branching of AM fungal hyphae grown in phosphorus media of 1 mM is significantly reduced, but the length of the germ tube and total hyphal growth were not affected.
Galls (upper left and right) formed on acorns on the branch of a pedunculate (or English) oak tree by the parthenogenetic generation Andricus quercuscalicis.. The large 2 cm gall growth appears as a mass of green to yellowish-green, ridged, and at first sticky plant tissue on the bud of the oak, that breaks out as the gall between the cup and the acorn.