plant hormone

Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… …   Wikipedia

plant hormone — plant n an organic substance other than a nutrient that in minute amounts modifies a plant physiological process esp one produced by a plant and active elsewhere than at the site of production called also phytohormone …   Medical dictionary

plant hormone — n. an organic chemical, as auxin, produced by plant cells and functioning at various sites to regulate growth, turning, metabolic processes, etc. * * * …   Universalium

plant hormone — n. an organic chemical, as auxin, produced by plant cells and functioning at various sites to regulate growth, turning, metabolic processes, etc …   English World dictionary

plant hormone — noun (botany) a plant product that acts like a hormone • Syn: ↑phytohormone, ↑growth regulator • Topics: ↑botany, ↑phytology • Hypernyms: ↑plant product …   Useful english dictionary

plant hormone — noun Date: 1935 an organic substance other than a nutrient that in minute amounts modifies a plant physiological process; especially one produced by a plant and active elsewhere than at the site of production …   New Collegiate Dictionary

plant hormone — See: plant growth regulator …   Glossary of Biotechnology

plant hormone — noun Any of many substances, produced by plants, that control or regulate their germination, growth, metabolism etc. Syn: phytohormone …   Wiktionary

Plant physiology — is a subdiscipline of botany concerned with the function, or physiology, of plants.Salisbury, Frank B. Cleon W. Ross, 1992. Plant physiology , 4th ed. (Belmont, California: Wadsworth Publishing). ISBN 0 534 15162 0] Closely related fields include …   Wikipedia

plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

Plant senescence — is the study of aging in plants. It is a heavily studied subject just as it is in the other kingdoms of life. Plants, just like other forms of organisms seem to have both unintended and programmed aging. Leaf senescence is the cause of autumn… …   Wikipedia