Acyclovir is also sometimes used to prevent outbreaks of genital herpes in people who are infected with the virus. Acyclovir is in a class of antiviral medications called synthetic nucleoside analogues. It works by stopping the spread of the herpes virus in the body.
The word hormone is derived from Greek, meaning set in motion. Plant hormones affect gene expression and transcription levels, cellular division, and growth. They are naturally produced within plants, though very similar chemicals are produced by fungi and bacteria that can also affect plant growth.he word hormone is derived from Greek, meaning set in motion. Plant hormones affect gene expression and transcription levels, cellular division, and growth. They are naturally produced within plants, though very similar chemicals are produced by fungi and bacteria that can also affect plant growth.
In plant shoots, the role of auxin is what causes a positive phototropism, or the plant to grow towards the light. When light is shone on a plant from one direction, it causes the hormones to redistribute to the shaded side.One function of the hormone is to cause cell elongation.n plant shoots, the role of auxin is what causes a positive phototropism, or the plant to grow towards the light. When light is shone on a plant from one direction, it causes the hormones to redistribute to the shaded side.