A number of economically important crops are susceptible to mosaic infections, including tobacco, cassava, beet, cucumber, and alfalfa.
Which crop is generally affected by mosaic disease * 1 point?
One of the most important diseases of cassava is cassava mosaic disease (CMD), which is transmitted primarily by the vector whitefly (Bemisia tabaci) (Chant 1958).
What plants does mosaic virus infect?
Tomatoes are small and misshapen. Tobacco mosaic virus: Infected plants have mottled and yellowed leaves and twisted or deformed young growth.
What does the mosaic virus affect?
For example, tomato mosaic virus most often infects tomatoes, but can also infect pepper, potato, apple, pear, cherry and numerous weeds, including pigweed and lamb’s quarters. Tobacco mosaic virus can infect ornamentals and weeds including cucumber, lettuce, beet, pepper, tomato, petunia, jimson weed and horsenettle.
Which disease is caused for mosaic disease?
This disease is caused by a complex consisting of the monopartite begomovirus Bhendi yellow vein mosaic virus (BYVMV, family: Geminiviridae) and a small satellite DNA beta component. BYVMV can systemically infect bhendi upon agroinoculation but produces only mild leaf curling in this host.
What causes rose mosaic?
Hosts: Rose mosaic is a disease of roses caused by Prunus Necrotic Ringspot Virus (PNRSV) and Apple Mosaic Virus (ApMV). These two common viruses are found worldwide and are known to cause serious diseases in stone fruits and apples. These viruses, separately and together, have been found in rose bushes.
What is meant by mosaic disease?
/ (məˈzeɪɪk) / noun. a serious viral disease of plants, esp tobacco, maize, and sugar cane, in which the leaves become mottled by discoloration.
Which plant is affected by the leaf curl virus?
Tomato yellow leaf curl virus (TYLCV) is a very damaging virus disease of tomato crops in tropical and warm temperate regions of the world, causing losses of up to 100%.
Can mosaic virus live in soil?
Unlike TMV (tobacco mosaic virus), CMV is not seedborne in tomato and does not persist in plant debris in the soil or on workers’ hands or clothing. The occurrence of this virus is erratic and unpredictable; consequently, control of this disease can be difficult.
What name is given to microorganisms that cause disease?
Infectious diseases are caused by microorganisms such as viruses?, bacteria?, fungi or parasites?. Microorganisms that cause disease are collectively called pathogens.
What symptoms are caused by TMV in plants?
Symptoms associated with TMV infections:
- mosaic pattern of light and dark green (or yellow and green) on the leaves.
- malformation of leaves or growing points.
- yellow streaking of leaves (especially monocots)
- yellow spotting on leaves.
- distinct yellowing only of veins.
Which one of the following crop varieties correctly matches with its resistance to a disease?
Variety – Pusa Shubhra; Resistance to a disease – Chilli Mosaic Virus.
WHO reported mosaic disease in tobacco plant?
In 1879, Adolph Mayer, working in the Netherlands, investigated this disease and named it the mosaic disease of tobacco. He reported that the “the harm done by this disease is often very great … and it has caused the cultivation of tobacco to be given up entirely” in certain places (17).
What is crop resistance to yellow mosaic virus?
New breeding lines of soybean having a gene for resistance to yellow mosaic virus from Glycine soja Linn. Sieb. & Zucc. Indian J Agric Sci 54: 1027–1029.
Which microbe causes yellow mosaic disease in plants?
Mungbean yellow mosaic virus (MYMV) is a plant pathogenic virus of the family Geminiviridae.
|Mungbean yellow mosaic virus|
What bacteria causes disease in plants?
|Some bacterial diseases of plants|
|Granville wilt||Pseudomonas solanacearum||tobacco, tomato, potato, eggplant, pepper, and other plants|
|fire blight||Erwinia amylovora||apple and pear|
|wildfire of tobacco||Pseudomonas syringae||tobacco|