Plant Hormone
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Plant hormones (also known as phytohormones) are chemicals that regulate plant growth, which, in the UK, are termed ''plant growth substances''. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted cells locally and when moved to other locations, in other locations of the plant. Hormones also determine the formation of flowers, stems, leaves, the shedding of leaves, a...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Plant hormones (also known as phytohormones) are chemicals that regulate plant growth, which, in the UK, are termed ''plant growth substances''. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted cells locally and when moved to other locations, in other locations of the plant. Hormones also determine the formation of flowers, stems, leaves, the shedding of leaves, and the development and ripening of fruit. Plants, unlike animals, lack glands that produce and secrete hormones, instead each cell is capable of producing hormones. Plant hormones shape the plant, affecting seed growth, time of flowering, the sex of flowers, senescence of leaves and fruits. They affect which tissues grow upward and which grow downward, leaf formation and stem growth, fruit development and ripening, plant longevity, and even plant death. Hormones are vital to plant growth and lacking them, plants would be mostly a mass of undifferentiated cells.
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