phytohormone
Definition
Noun 1. A plant-produced substance that regulates growth and development: A phytohormone is an organic compound synthesized by plants that controls or coordinates various physiological processes, even at very low concentrations. These processes include cell division, elongation, flowering, fruit ripening, and responses to environmental stimuli.
Usage Examples
- Noun:
- Auxin is a key phytohormone that promotes stem elongation.
- The application of a phytohormone can influence the timing of fruit set.
- Scientists study how phytohormones like gibberellin regulate seed germination.
Advanced Usage
- "Endogenous phytohormone": Refers to a hormone naturally produced within the plant itself.
- The balance of endogenous phytohormones determines the plant's architecture.
- "Phytohormone signaling pathway": Describes the chain of molecular events triggered when a phytohormone binds to a receptor.
- Understanding the phytohormone signaling pathway is crucial for agricultural biotechnology.
Variants and Related Words
- Plant hormone: A direct synonym for phytohormone.
- Growth regulator: A broader term that can include synthetic compounds mimicking phytohormones.
- Phytohormonal (adj): Relating to or involving phytohormones.
- The observed effect was due to a phytohormonal imbalance.
Synonyms
- Plant hormone
- Growth substance (in a botanical context)
Related Terms and Concepts
- Auxin: A class of phytohormones promoting cell elongation.
- Gibberellin: A class of phytohormones stimulating stem growth and seed germination.
- Cytokinin: A class of phytohormones promoting cell division.
- Abscisic acid: A phytohormone involved in stress responses and dormancy.
- Ethylene: A gaseous phytohormone regulating fruit ripening and senescence.
Noun
-
(botany) a plant product that acts like a hormone
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