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Pithovirus—the largest known virus; Parvovirus—smallest known viruses; Pelagibacter ubique—possesses one of the smallest bacterial genomes; Virophage—a virus that requires the host cell to be co-infected with a giant virus; The Giant Virus Finder is a software tool that identifies giant viruses in environmental Metagenomes.
Classification Binomial name Common name Dimension Size Reference Flatworm animal: Eucestoda: Tapeworm: length (maximum) 25 m: Eucestoda: Nematode animal: Loa loa: Loa loa: length (female)
[citation needed] It exhibits 7 aminoacyl tRNA synthetases (Table 2), the archetypes of enzymes previously thought only to be encoded by cellular organisms. While 4 of these enzymes were known to be present in Mimivirus and Mamavirus (for tyrosine, arginine, cysteine, and methionine), Megavirus exhibits three more (for tryptophan, asparagine ...
[36] [37] Accordingly, symptoms may only appear when certain conditions of the virus-fungus-system change and get out of balance. This could be external (environmental) as well as internal (cytoplasmic). It is not known yet why some mycoviruses-fungus-combinations are typically detrimental while others are asymptomatic or even beneficial.
Widespread non-communicable diseases such as cardiovascular disease and cancer are not included. An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal infections , an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered ...
The discovery and subsequent characterization of giant viruses has triggered debate on their evolutionary origins. The two main hypotheses are that they evolved from small viruses by picking up DNA from host organisms; or that they evolved from very complicated organisms via genome reduction, losing various functions including self-reproduction ...
Much of the New World is also at risk of the disease arriving within the coming years. [2] The fungus is capable of causing sporadic deaths in some amphibian populations and 100% mortality in others. No effective measure is known for control of the disease in wild populations. Various clinical signs are seen by individuals affected by the disease.
The fungus was written about in the April 2003 issue of the Canadian Journal of Forest Research. If this colony is considered a single organism, then it is the largest known organism in the world by area, and rivals the aspen grove "Pando" as the known organism with the highest living biomass.