Bacteria is a vast domain that encapsulates a type of biological cell and also the common name for the species included in that domain. Bacteria are present in most ecosystems and in many symbiotic and parasitic relationships with animals and plants. Life truly depends on bacteria to survive, but such a large group also comprises harmful pathogenic bacteria that affect humans, animals, and plants. Bacteria will also have different types of relationships depending on their host.
Infections usually start with fewer infected cells, but colonization is fast, and higher population levels are easily reached. In nature, bacteria are important for nutrient recycling, but in pathogenic relationships with plants, they'll interfere with nutrient transport, causing alterations in internal programming and affecting normal plant development. Generally, bacteria are more common in higher temperatures and high humidity.
