What type of organisms are affected by tobacco mosaic virus?

What type of organism is affected by TMV?

The tobacco mosaic virus infects tobacco and lots of other closely related species like tomatoes and peppers. It is transmitted by contact between plants, either naturally or on the hands of farmers. It infects the chloroplasts of plant leaves and changes their colour from green to yellow or white in a mosaic pattern.

What plants can tobacco mosaic virus affect?

The tobacco mosaic virus attacks plants in the families that include tomato, pepper, eggplant, tobacco, spinach, petunia, and marigold. Many modern vegetable varieties have been developed to resist this virus.

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.

Is tobacco mosaic virus prokaryotic or eukaryotic?

Eukaryotes are diploid and the DNA is organized into the multiple linear chromosomes and found in the nucleus. The tobacco Mosaic virus genome consists of the single-stranded RNA (ssRNA) which is 6400 bases long. The RNA is protected by a coat protein from cellular degradation.

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What name is given to microorganisms that cause disease?

Microorganisms that cause disease are collectively called pathogens. Pathogens cause disease either by disrupting the bodies normal processes and/or stimulating the immune system to produce a defensive response, resulting in high fever, inflammation? and other symptoms.

How does tobacco mosaic virus affect photosynthesis?

TMV infects the chloroplasts of plant leaves and reduces the plant’s ability to photosynthesise . The leaves change colour from green to yellow or white and develop a mosaic pattern. It can also make leaves crinkled or curled up.

What are tobacco mosaic symptoms?

Symptoms associated with TMV infections:

  • stunting.
  • 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.

What animal is associated with Ebola virus outbreaks?

However, in Africa, Ebola may be spread as a result of handling bushmeat (wild animals hunted for food) and contact with infected bats. The disease infects humans through close contact with infected animals, including chimpanzees, fruit bats, and forest antelope.