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A genetically modified virus is a virus that has been altered or generated using biotechnology methods, and remains capable of infection.Genetic modification involves the directed insertion, deletion, artificial synthesis or change of nucleotide bases in viral genomes.
Fasciation can be caused by hormonal imbalances in the meristematic cells of plants, which are cells where growth can occur. [4] [5] Fasciation can also be caused by random genetic mutation. [6] Bacterial and viral infections can also cause fasciation. [4]
Grapevine virus A is transmitted through propagation (the breeding of different grapevine varieties) and grafting (joining different plant tissues together so they can continue to grow as one plant). Since Grapevine virus A is a genetic virus, the only way it can spread is if DNA from infected grape plants gets mixed in with the DNA of healthy ...
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Although plant viruses are not as well understood as their animal counterparts, one plant virus has become very recognizable: tobacco mosaic virus (TMV), the first virus to be discovered. This and other viruses cause an estimated US$60 billion loss in crop yields worldwide each year. Plant viruses are grouped into 73 genera and 49 families ...
Plant disease triangle. Epidemiology is the study of factors affecting the outbreak and spread of infectious diseases. [10] A disease triangle describes the basic factors required for plant diseases. These are the host plant, the pathogen, and the environment. Any one of these can be modified to control a disease. [11]
An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi , oomycetes , bacteria , viruses , viroids , virus -like organisms, phytoplasmas , protozoa , nematodes and parasitic plants . [ 2 ]