A barrel cactus 2 feet tall and 1 foot in diameter has roots more than 10 feet long. However, all of the roots are found in the soil no deeper than 6 inches. Why would a plant in such a dry climate have such shallow roots?
Nitrogen fixation research Ammonia diffusion hypothesis of nitrogen transport into plants
Group activity If N is supplied as alanine, what does this imply the plant is able to do? As a scientist, what would you look for in a plant that would support the hypothesis that N is supplied as alanine?
Rosemary's Root Beer Tonic Ingredients (4 servings) 3 oz Sassafras Bark, dried 2 oz Sarsaparilla root, dried 1 oz Dandelion Root, dried 1 oz Burdock Root, dried 1/2 oz Ground Ginger root 1/2 oz Ground Cinnamon 1/4 oz Orange Peel, dried Mix together all ingredients and store in a tightly closed container. In a large pot combine 1 quart of water and 4 tablespoons of dry mixture. Bring to a boil, cover and simmer for 15 to 20 minutes. Strain and sweeten with honey or stevia (also called "sweet herb") if desired. Source: Vegetarian Times, April 1993 link
Valerian extract, derived from the dried rhizomes and roots of the plant, has been used for thousands of years as a folk remedy, tranquilizer and calmative for several disorders such as restlessness, nervousness, insomnia, hysteria, menstrual problems, and as a sedative for "nervous" stomach. Valerian extracts are currently used in scores of compounds and teas in Europe. Valeriana officinalis
Rotenone comes from Derris root and Lonchocarpus species leaf (Family: Leguminosae) It is an insecticide and also used as a fish poison. Rotenone disrupts cellular respiration and death is relatively slow compared to most nerve toxins. Rotenone is extremely toxic to fish and is used as a fish poison by South American Indians and in water management programs.
Root research CO 2 concentration and root growth CO 2 concentration and root growth Phytoremediation and molecular farming Phytoremediation and molecular farming –Mercury detoxificationMercury detoxification –TNT detoxificationTNT detoxification Root cap function Root cap function
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