many people with early stage lyme disease develop a distinctive circular rash at the site of the tick bite usually around 3 to 30 days after being bitten this is known as erythema migrans the rash is often described as looking like a bull s eye on a dart boardany people with early stage lyme disease develop a distinctive circular rash at the site of the tick bite usually around 3 to 30 days after being bitten this is known as erythema migrans the rash is often described as looking like a bull s eye on a dart board
For example, giberellins stimulate cell division in shoot apical meristem, causing the plant to grow taller. These hormones also cause cell elongation in intercalary meristem of grasses. Cytokinin and auxin are also important growth regulators.ateral meristem is called the vascular cambium in many of the plants in which it is found. Secondary growth gives a plant added stability that allows for the plant to grow taller. Lastly, some plants have intercalary meristem.
Gibberellins are hormones produced in meristems of stems and roots that help regulate stem elongation. Dwarf plants often do not contain much of this hormone and are therefore shorter than normal. Ethylene is a chemical produced in fruits, flowers and aging leaves that promotes fruit ripening.ormones in plants act in similar ways. They are produced by cells in one area of the plant-such as the leaves, stems or root-and then transported to a different area of the plant in order to produce a response.