The following points highlight the nine main factors affecting in vitro androgenesis. The factors are: 1. Age and Physiology 2. Stages of Pollen 3. Thermal Stress 4. Genotype 5. Chemical Treatment 6. Medium Factor 7. Anther Wall Factor 8. Microspore Density 9. Cultural Conditions. Factor # 1. Age and Physiology: The physiological conditions of the donor plant have a considerable [...]
Exploitation of plant viruses as transformation vectors by massive infection may be harmful and even deleterious to the target plants. It is still however able to express and produce foreign proteins. Plant viruses must exhibit some of the exemplary features before they are considered as vectors. They should extend their broader host-range, spread of seed transmission and carry additional copies [...]
This article provides a case study on transgenic rice for stress tolerance. Production of agronomically useful transgenic rice has been given top priority in the improvement of crop plants. The loss of rice yield due to stress impact is estimated to cost at least several billion dollars a year. Genetic engineering offers effective way to deal with these problems. Moreover, [...]