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Puccinia thaliae is the causal agent of canna rust, a fungal disease of Canna. Symptoms include yellow to tan spots on the plant's leaves and stems. Initial disease symptoms will result in scattered sori (clustered sporangia), eventually covering the entirety of the leaf with coalescing postulates.
Septoria cannabis is a species of plant pathogen from the genus Septoria that causes the disease commonly known as Septoria leaf spot. Early symptoms of infection are concentric white lesions on the vegetative leaves of cannabis plants, followed by chlorosis and necrosis of the leaf until it is ultimately overcome by disease and all living cells are then killed.
Medical cannabis (or medical marijuana) refers to the use of cannabis and its constituent cannabinoids, in an effort to treat disease or improve symptoms. Cannabis is used to reduce nausea and vomiting during chemotherapy , to improve appetite in people with HIV/AIDS , and to treat chronic pain and muscle spasms .
A host species for Schiffnerula cannabis has yet to be named. [4] However, a variety of signs are present with Schiffnerula cannabis.Respectively as black mildew are, flat, gray-black, and film like areas throughout the leaf, colonies of conidia on the surface of leaves, as well as ascomata and ascii are present on hosts as Schiffnerula cannabis runs its course. [4]
Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known by several slang terms, such as marijuana, pot or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent .
Δ 9-tetrahydrocannabinol (THC) Cannabis sativa, scientific drawing from c. 1900. Although the main psychoactive constituent of Cannabis is tetrahydrocannabinol (THC), the plant is known to contain more than 500 compounds, among them at least 113 cannabinoids; however, most of these "minor" cannabinoids are only produced in trace amounts. [10]
Pseudomonas cannabina is a gray, Gram-negative, fluorescent, motile, flagellated, aerobic bacterium that causes leaf and stem rot of hemp (Cannabis sativa), [1] from which it derives its name. It was formerly classified as a pathovar of Pseudomonas syringae , but following ribotypical analysis , it was reinstated as a species. [ 2 ]
Hop latent viroid (abbreviated HpLVd, or HLVd, binomial Cocadviroid latenshumuli) is a viroid, which is known to cause the Dudding Disease in hemp and cannabis. [1] [2] It is a non-capsulated strand of RNA and an obligate parasite that requires the presence of a compatible host for its survivability.