Write about mucilages secreted by vegetables like okra.
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Mucilage is a thick, gluey substance produced by nearly all plants and some microorganisms. These microorganisms include protists which use it for their locomotion. The direction of their movement is always opposite to that of the secretion of mucilage.[1] It is a polar glycoprotein and an exopolysaccharide. Mucilage in plants plays a role in the storage of water and food, seed germination, and thickening membranes. Cacti (and other succulents) and flax seeds are especially rich sources of mucilage
Occurrence
Exopolysaccharides are the most stabilising factor for microaggregates and are widely distributed in soils. Therefore, exopolysaccharide-producing "soil algae" play a vital role in the ecology of the world's soils. The substance covers the outside of, for example, unicellular or filamentous green algae and cyanobacteria. 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
Mucilage has a unique purpose in some carnivorous plants. The plant genera Drosera (sundews), Pinguicula, and others have leaves studded with mucilage-secreting glands, and use a "flypaper trap" to capture insects.
Human uses
Glass container for mucilage, from the first half of the 20th century.
Mucilage is edible. It is used in medicine as it relieves irritation of mucous membranes by forming a protective film. Traditionally, marshmallows were made from the extract of the mucilaginous root of the marshmallow plant (Althaea officinalis) as a cough medicine. The inner bark of the slippery elm (Ulmus rubra), a North American tree species, has long been used as a demulcent and is still produced commercially for that purpose.
Mucilage mixed with water has been used as a glue, especially for bonding paper items such as labels, postage stamps, and envelope flaps.Differing types and varying strengths of mucilage can also be used for other adhesive applications, including gluing labels to metal cans, wood to china, and leather to pasteboardDuring the fermentation of nattō soybeans, extracellular enzymes produced by the bacterium Bacillus natto react with soybean sugars to produce mucilage. The amount and viscosity of the mucilage are important nattō characteristics, contributing to nattō's unique taste and smell.
The mucilage of two kinds of insectivorous plants, sundew (Drosera)[8] and butterwort (Pinguicula),is used for the traditional production of a variant of the yoghurt-like Swedish dairy product called filmjölk
Ecological implications for plants
The presence of mucilage in seeds affects important ecological processes in some plant species, such as tolerance of water stress, competition via allelopathy, or facilitation of germination through attachment to soil particles. Some authors have also suggested a role of seed mucilage in protecting DNA material from irradiation damage.[15] The amount of mucilage produced per seed has been shown to vary across the distribution range of a species, in relation with local environmental conditions of the populations.
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Mucilages secreted by vegetables like okra:
The mucilage that is secreted by vegetable like okra or ladies finger is the polysaccharides which are used for the storage purposes. This layer of the thick, slimy, glue like substances helps to protect the seeds from the radiation.
This will also helps the vegetable to attach with soil. This mucilage is very helpful to produce medicine and therapeutics. This is also helpful to produce bio glue to mix with the synthetic glue.