PHYTOHORMONE Meaning and
Definition
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Phytohormones, also known as plant hormones, are naturally occurring chemical substances that are produced within plants and function as signaling molecules. They play a crucial role in regulating various physiological processes of plant growth and development. Phytohormones are responsible for coordinating the growth and responses of plants to various environmental stimuli, including light, gravity, temperature, and stress.
There are five major classes of phytohormones: auxins, cytokinins, gibberellins, abscisic acid, and ethylene. Each of these hormones has specific functions and acts in a unique way to regulate plant growth and development. Auxins, for example, are primarily involved in controlling cell elongation, root initiation, and apical dominance. Cytokinins, on the other hand, stimulate cell division, delay aging, and promote lateral bud growth. Gibberellins primarily promote stem elongation and fruit growth, while abscisic acid regulates seed development, dormancy, and drought tolerance. Ethylene is a gaseous hormone that mediates several physiological processes, including fruit ripening and leaf and flower senescence.
The precise balance and interactions between these phytohormones are crucial for plant growth and development. They influence various aspects of plant physiology, including seed germination, root development, flower and fruit development, leaf expansion, and response to stress. By understanding the functions and interactions of phytohormones, scientists can manipulate plant growth and development to improve crop yield, increase resistance to environmental stressors, and enhance the overall health and vitality of plants.
Common Misspellings for PHYTOHORMONE
- ohytohormone
- lhytohormone
- -hytohormone
- 0hytohormone
- pgytohormone
- pbytohormone
- pnytohormone
- pjytohormone
- puytohormone
- pyytohormone
- phttohormone
- phgtohormone
- phhtohormone
- phutohormone
- ph7tohormone
- ph6tohormone
- phyrohormone
- phyfohormone
- phygohormone
Etymology of PHYTOHORMONE
The word "phytohormone" is derived from two Greek roots: "phyto" and "hormone".
1. "Phyto" (φυτό) - This Greek root means "plant" or "pertaining to plants". It is commonly used in scientific terminology that relates to plants.
2. "Hormone" (ὁρμή) - This Greek root means "impulse" or "urge". In biology, it refers to a chemical substance produced by an organism that signals and regulates various physiological activities.
When combined, "phyto" and "hormone" in the term "phytohormone" create a word that refers to the plant hormones or chemical compounds that regulate plant growth and development.
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