Mindblown: a blog about philosophy.
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Virus structure
A microorganism that can pass through filters that trap bacteria and can reproduce within a host’s living cells is defined as a virus. The virus particle’s nucleic acid component, along with its surrounding protein shell called the capsid, makes up the nucleocapsid. The capsid is created from a collection of smaller structural protein units known…
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Stylet-borne virus
This passage discusses a particular virus that has been demonstrated to be transmitted via the stylet of its vector. Interestingly, this type of virus is unable to make it through the moult or appear in the haemolymph and has a limited lifespan within the vector.
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Semi-persistent virus
Semi-persistent viruses are those that can be carried by vectors from infected to healthy plants for several days at most. These viruses have less clearly defined transmission characteristics compared to non-persistent and persistent viruses. The efficiency of transmission increases as the length of acquisition and inoculation feeding times increases. There is no latent period, and…
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Propagative virus
A pathogen that is recognized for replicating inside its carrier. These types of pathogens tend to be distributed throughout the organism, but it’s crucial to understand that these terms do not have the same meaning.
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Persistent virus
This passage discusses viruses that are maintained over extended periods, sometimes even throughout the entire lifespan, through transmission from infected to healthy plants by vectors. These viruses exhibit distinct transmission traits, such as passing through the moult, and some can pass on to the vector’s offspring and even multiply within it. They are carried inside…
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Non-persistent virus
Certain viruses have a brief lifespan within vectors that transfer them from infected plants to healthy ones. These viruses exhibit specific characteristics when transmitted, such as an inability to infect the vector’s progeny or pass through its moult. They appear to attach to the stylets externally, without multiplying within the vector or appearing in the…
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Multiparticulate virus
This is a sentence that refers to a type of pathogen that is capable of generating multiple nucleoprotein components within plants that it has infected.
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Dependent virus
A virus that can only be transmitted through its vector when another virus, known as the “helper” virus, is present. This type of virus is also referred to as an assisted virus, carried virus, or helped virus.
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Circulative virus
This passage initially referred solely to viruses that had been confirmed to be passed through the salivary glands of leafhoppers (as reported by L. M. Black in The Viruses, Volume 2: 157-185, a 1959 publication edited by F. M. Burnet and W. M. Stanley, and released by Academic Press in New York and London). These…
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Virescence
the occurrence of green coloration (usually due to formation of chlorophyll) in parts that are not normally green, especially in the perianth.
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