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Cultured plant cells:
Cultured plant cells are recognized to give biochemicals of interest since 1950's, but starting the yields were very low. Refined culture structures have changed the biochemical yields considerably, and over half a dozen cell cultures provides 2 g/I or more of the biochemical. Shikonin (a naphthoquinone) is generates on a commercial scale from cell cultures of Lithospermum erythrorhizon, while berberine (an alkaloid) is calculated from Coptis japonica cell cultures. Interestingly, Ginserg tissues provides in vitro (19 g dry cells/I)produced in 2000 I bioreactors) are needed as additives in tonic wines, drinks, soups, herbal liquors etc. The biochemicals gets from plant cell cultures are comparable to those generated from intact plants in their biochemical, chemical and biological properties. In addition, cultured cells of various plant species give biochemicals which have so far not been changed in whole plants; the list of such elements has grown rapidly to 140 in 1992 from merely 4 in 1978. For example, cell suspension cultures of Rauwolfia serpentina have been exposed to create 4 larger polar alkaloids which are novel glucosides of ajmaline and its derivatives.
Do the arteries that carry blood from the heart to the lungs have arterial or venous blood? What happens to the blood when it passes through the lungs? Arteries of the pulmonar
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Needlestick/sharp instrument injuries are of major concern to health care workers. All of the significant exposures reported in the academic year 2003/04 in our Faculty, were injur
A cleavage furrow appears in the middle of the cell, deepens gradually and divides the cell into two. Thus, at the end of second meiotic division, four daughter cells are formed
Q. What is the relation between secretion of parathormone and the calcium blood level? The parathormone increases the calcium blood level since it stimulates the resorption (re
A DNA library is a collection of cloned DNA fragments in a cloning vector which can be fined for a DNA of interest. If the target is to isolate particular gene sequences.
Coelomoducts of Molluscs In Molluscs, like in Crustacea nephridia are absent. But certain of the larval pulmonates do possess protonephridia suggesting that they have been se
What is Vacuole ? Another structure found only in plant cells is the large central vacuole. The vacuole stores enzymes and waste products, in addition to providing the turgor p
Sucrose is commonly used to preserve fruits why not glucose? Ans) Glucose is reactive due to its open-chain form having an aldehyde group.
what factor''s do i colour depend on?
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