In this article we will discuss about:- 1. Discovery and Definition of Somaclonal Variation 2. Techniques to Generate Somaclonal Variations 3. Selection and Isolation 4. Screening 5. Applications. Discovery and Definition of Somaclonal Variation: Improvement of plants through alterations or additions of traits are some of the main objectives in plant biotechnology. Plant breeders have recognized the potential sources of [...]
The following are the some of the examples of Somaclonal Variation: 1. Sugarcane 2. Potato 3. Tobacco 4. Rice 5. Barley. 1. Sugarcane: Application of somaclonal variation in crop improvement programme was established in sugarcane. The Hawaian Sugar Planters Association Experimental Station recorded genetic variation among sugarcane plants regenerated from tissue culture. Variations were recorded based on cytogenetic, morphological and [...]
In this article we will discuss about the microbes that are involved in leaching. Algae and oligotrophous nonspore forming bacteria belonging to the genera Pseudomonas, Corynebacterium and Arthrobacter predominate in the rocks. Many of them are capable of fixing atmospheric nitrogen. Rocks disintegrate mainly along cracks and at the surface. Accumulation of organic substances, leaching of elements and formation of [...]