PLANT HORMONE Meaning and
Definition
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A plant hormone is a substance produced naturally by plants that regulate various physiological processes and growth responses. Also called phytohormones, these signaling molecules are responsible for coordinating growth, development, and environmental responses in plants. Plant hormones play a crucial role in plant growth and are involved in processes such as seed germination, root and shoot growth, leaf expansion, flowering, fruit development, and senescence.
There are several types of plant hormones, each with specific functions and effects on plant physiology. The major plant hormones include auxins, cytokinins, gibberellins, abscisic acid, ethylene, and brassinosteroids. Each hormone exerts its effects by binding to specific receptors and initiating responses within the plant cells.
Plant hormones are synthesized in various locations within the plant, including the tips of roots and shoots, young leaves, developing seeds, and fruits. They are transported through the plant via vascular tissues, such as the xylem and phloem.
The interplay between different plant hormones is essential for maintaining a balance in plant growth and development. By interacting with one another and responding to environmental cues, plant hormones help regulate processes such as tropisms, photoperiodism, gravitropism, and responses to biotic and abiotic stresses.
Understanding the role of plant hormones is crucial for plant scientists, farmers, and horticulturists as it helps them manipulate plant growth and development for agricultural and horticultural purposes, including crop yield improvement, disease resistance, and enhancing plant adaptability to various environmental conditions.
Common Misspellings for PLANT HORMONE
- olant hormone
- llant hormone
- -lant hormone
- 0lant hormone
- pkant hormone
- ppant hormone
- poant hormone
- plznt hormone
- plsnt hormone
- plwnt hormone
- plqnt hormone
- plabt hormone
- plamt hormone
- plajt hormone
- plaht hormone
- planr hormone
- planf hormone
- plang hormone
- plany hormone
Etymology of PLANT HORMONE
The word "plant hormone" is a combination of two terms: "plant" and "hormone".
The term "plant" originated from the Latin word "planta", meaning a young shoot or twig. It later extended its meaning to refer to vegetation in general.
The word "hormone" was first introduced by the English physiologist Ernest Starling in 1905. It is derived from the Greek word "hormon", meaning "that which sets in motion" or "that which excites". In the context of biology and physiology, a hormone is a chemical substance produced by various glands or tissues in organisms that regulates specific physiological activities and functions.
Therefore, "plant hormone" refers to the chemical substances produced by plants that regulate various physiological processes and activities within the plant itself.
Similar spelling words for PLANT HORMONE
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