TAILIEUCHUNG - Biotechnological approaches in management of viral diseases of horticulture crops

Viral diseases are one of the major factors threatening crop production worldwide. It is estimated that about 15 percent of global crop production is lost due to various plant diseases, and phytopathogenic viruses are thought to cause more than one third of plant diseases. Viruses such as TYLCV, PRSV, CMV, BBTV are some major virus epidemics which cause heavy losses in horticultural crops. Management of plant virus diseases have acquired great importance in the realm of Plant Pathology and call for effective management against them. Although pesticides are commonly used to reduce viral vector populations, chemical treatments cannot directly limit viral infections. A number of indirect control measures have been developed with an aim to avoid the pathogen or minimize their impact on crop yield. As more complex and probably more durable resistance can be more difficult to establish and certainly more difficult to achieve by conventional approach. Thus, biotechnology represents the latest front in the ongoing scientific progress of this century. Gene silencing (GS) is involved in the down regulation of specific genes, and probably evolved as a genetic defense system against viruses and invading nucleic acids. The discovery of mechanism that suppress the gene activity in plants has extended the horizon on the research on control of gene expression. Currently there are several routes of GS identified in plants such as Post transcriptional gene silencing (PTGS), RNA interference (RNAi) and Virus induced gene silencing (VIGS). Recent investigations suggest that antiviral RNA silencing is the most prevalent defense strategy in plants. Also CRISPR (Clustered Regularly Interspaced Palindromic repeats) Cas9 is a recent breakthrough in gene editing technology. The integration of CRISPR has facilitated the production of cultivar with heritable resistance to viral diseases. | Biotechnological approaches in management of viral diseases of horticulture crops

• Sinh học
• Management strategies
• Gene silencing
• Biotechnological approaches
• Management of viral diseases
• Horticulture crops
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