Tobacco mosaic virus, abbreviated as TMV, is an RNA virus. It is a pathogen of tobacco mosaic disease. It belongs to the Tobamovirus group. It is currently the most widely distributed and common type of disease in tobacco production, and it is extremely harmful to tobacco.
Transmission route of tobacco mosaic virus
TMV can survive the winter on a variety of plants. The source of initial infection is diseased residues and other host plants. In addition, poisonous fertilizers that are not fully decomposed can also cause initial infection.
Mainly spread through juice. The slight friction of diseased healthy leaves can cause micro wounds, and the virus can invade, not from large wounds and natural orifices.
After invasion, it reproduces in parenchyma cells, and then enters the vascular bundle tissue to infect the entire plant. At 22-28 °C, the infected plants begin to show symptoms 7-14 days later.
In addition, insects with chewing mouthparts such as locusts and tobacco worms in tobacco fields can also transmit TMV.
What is the harm of tobacco mosaic virus?
Symptoms of Tobacco Mosaic Virus
After the tobacco mosaic virus infects tobacco plants, it will destroy the tissue structure of the plant, and the damage to the tender leaves is the greatest, causing the tender leaves to show the symptoms of open veins, that is, the lateral veins and branch veins of the leaves appear translucent.
Tobacco mosaic virus multiplies in tobacco cells in large numbers. Viral RNA will seriously affect the normal division of tobacco cells, leading to abnormal fission of tobacco mesophyll cells. Some tobacco leaves proliferate or are inhibited, and symptoms of uneven leaf thickness appear, and leaves appear spots. Shows different areas of yellow and green.
With the further infection of mosaic virus, leaf tissue necrosis is gradually caused. A large area of brown necrotic spots appears on tobacco leaves, and the shape of the leaves is twisted and shrunken. This phenomenon is particularly obvious on old leaves. The severely ill leaves bulge and form bubbles. Shaped, with the edges curved inward.
Early-onset tobacco plants are severely dwarfed. The tobacco plants cannot grow normally. They cannot bloom and produce normally during the maturity period. They have poor resistance and are susceptible to external interference. The leaves, flowers and fruits are easy to fall off, and the amount of seeds is small. Sprout and grow.
Harmfulness of Tobacco Mosaic Virus
Tobacco virus disease is an important type of disease in tobacco. Tobacco virus disease is widespread, widely distributed, and seriously harmful in tobacco cultivation areas all over the world, which seriously affects the yield and quality of tobacco.
Tobacco virus disease caused by tobacco mosaic virus infecting tobacco is the most common and most harmful disease in tobacco in my country.
How to prevent tobacco mosaic virus?
Tobacco mosaic virus detection method
Monoclonal antibody technology was used to obtain monoclonal antibodies against Tobacco mosaic virus (TMV), and the rapid detection of tobacco mosaic virus was established through colloidal gold labeling technology, immunochromatographic rapid detection technology and SQUID magnetic quantitative determination technology. Detection method.
Tobacco mosaic virus control measures
Taking tobacco plants as the object, strengthen tobacco plant health cultivation, cut off the transmission route, highlight resistance induction, and assist chemical control measures.
Note: The above content is for reference only, please conduct prevention and treatment under the guidance of experts.
What specimen can be detected by BALLYA Tobacco Mosaic Virus Test?
Specimen include: all kinds of tobacco. Widely used in tobacco and tobacco processing industry. You can choose the right products according to your needs.
Significance of testing Tobacco Mosaic Virus
To protect the health tobacco, avoid contaminated tobacco. The excess tobacco mosaic virus is harmful for animal being, can’t take too much in the body.
1. Take some tobacco specimen 2. Add the supernatant to cassette 3. Wait for 15 minutes to result 4. The details of operation, refer to the kit instruction
Limitations of BALLYA Tobacco Mosaic Virus Test?
BALLYA Tobacco Mosaic Virus Test is a qualitative test kit. It’s only for screening purpose. If have positive cases or suspected case, maybe use other detection method to make a further detection, such as, ELISA, PCR, qPCR, etc.
BALLYA Tobacco Mosaic Virus Test is suitable for the detection of Tobacco Mosaic Virus residues in all kinds of tobaccos. Simple operation, high accuracy and short detection time are the characteristics of this product.
It can be widely used in food and drug administration, health departments, higher education institutions, scientific research institutes, agricultural departments, animal husbandry and veterinarians, breeding farms, slaughterhouses, food and meat products deep processing enterprises, inspection and quarantine departments and other units.