Senescence and Abscission both are biological phenomenon.It is directly under the control of environmental and internal biology of the plant.The main internal factors are plant growth regulators .Auxins,gibbrellins,cytokinnins ,abscissic acid and ethylene are well known plant growth regulators .Usually auxins ,gibberellins and cytokinnins are growth promoters and rest twoare growth retardent.Auxins,gibbrellins and cytokinnins retards the senescence as well as abscission by delaying losses in chlorophyll, protein and sugars degradation. However abscissic acid and ethylene are to be considered...

Senescence and abscission both are genetically controlled phenomenon yet reports of environmental, nutritional and chemical controls are not unknown.Gibberellic acid play vital role in controlling of senescence and abscission. Gibberellic acid delay the senescence by delay the synthesis of hydrolytic enzymes.Recent studies show that Gibberellic acid control the genetical characters. Hydrolytic enzymes promote the degradation of not only macromolecules like starch, proteins,lipids, nucleic acid etc., but also degrade the cell organelle like chloroplast, mitochondria, nucleus etc., Chloroplast...

By employing developments in other disciplines, including engineering, physics, chemistry, and mathematics/information technology, biotechnology, as we know it today, is the ideal amalgam of "biology" and its applications. Recent innovations and developments in fields like genetic engineering, molecular biology and OMICS, synthetic biology, and nanotechnology further open the door to the achievement of various selection criteria and the creation of "tailor-made" microbe-metabolites that can be successfully used for various applications. Beyond academic studies of microorganisms, plants, and...