The following basic properties are known to be essential to make a antigens: 1. Foreign Nature 2. Molecular Size 3. Antigenic Determinants and Cross-Reactivity 4. Molecular Rigidity and Complexity 5. Genetic Factors in the Individual. Property # 1. Foreign Nature: The prerequisite for immunogenicity is that the substance should be foreign to the body of recipient. As a result the [...]
In this article we will discuss about the role of proteins in pollen grains. T. Singer and Petrovskya - Baranova (1961) were the first to show the existence of proteins with enzymatic properties in certain layers of the pollen walls of Paeonia and Amaryllis. Subsequently, Makinen and McDonald (1968) demonstrated the pollen enzymes and isoenzymes in flowering plants. The details [...]
The following points highlight the top five applications of pollen biotechnology: 1. Overcoming Pollination Constraints for Optimization of Crop Yield 2. Developing Effective Pollination Control System for Commercial Production of Hybrid Seeds 3. Overcoming Cross ability Barriers to Transfer of Useful Genes to Crop Species and Others. Application # 1. Overcoming Pollination Constraints for Optimization of Crop Yield: In majority [...]