| plant antitoxin | Antitoxin specific for a phytotoxin. (05 Mar 2000) |
|---|---|
| plant association | A grouping of plant species, or a plant community, that recurs across the landscape. Plant associations are used as indicators of environmental conditions such as temperature, moisture, light, etc. (05 Dec 1998) |
| plant-cane | A stalk or shoot of sugar cane of the first growth from the cutting. The growth of the second and following years is of inferior quality, and is called rattoon. Source: Websters Dictionary (01 Mar 1998) |
| plant casein | <plant biology> A prolamine, about 25% l-glutamic acid residues, found in oats (Avena) and in various legumes; considered highly nutritious. Synonym: legumin, plant casein. (05 Mar 2000) |
| plant community | <botany, ecology> The plant populations existing in a shared habitat or environment. (31 Dec 1997) |
| plant components | The anatomical components of a plant, including seeds. (12 Dec 1998) |
| plant dermatitis | See: dermatitis venenata. Primary irritant dermatitis, a frequently cumulative reaction of irritation on exposure of the skin to substances which are toxic to epidermal or connective tissue cells; lesions are usually erythematous and papular, but can be purulent or necrotic, depending on the nature of the toxic material applied. (05 Mar 2000) |
| plant-eating | Eating, or subsisting on, plants; as, a plant-eating beetle. Source: Websters Dictionary (01 Mar 1998) |
| plant epidermis | A thin layer of cells forming the outer integument of seed plants and ferns. (12 Dec 1998) |
| plant extracts | Concentrated pharmaceutical preparations of plants obtained by removing the active constituents therefrom with a suitable menstruum, evaporating all or nearly all the solvent, and adjusting the residual mass or powder to a prescribed standard. (12 Dec 1998) |
| plant families and groups | Groupings that include specific plants within larger families or divisions. (12 Dec 1998) |
| plant growth regulators | Any of the hormones produced naturally in plants and active in controlling growth and other functions. There are three primary classes: auxins, cytokinins, and gibberellins. (12 Dec 1998) |
| plant growth substances | <plant biology> Substances that, at low concentration, influence plant growth and differentiation. Formerly referred to as plant hormones or phytohormones, these terms are now suspect because some aspects of the hormone concept, notably action at a distance from the site of synthesis, do not necessarily apply in plants. Also called plant growth regulators. The major classes are absicisic acid, auxin, cytokinin, ethylene and gibberellin, others include steroid and phenol derivatives. (31 Dec 1997) |
| plant indican | 1. <chemistry> A glucoside obtained from woad (indigo plant) and other plants, as a yellow or light brown sirup. It has a nauseous bitter taste, a decomposes or drying. By the action of acids, ferments, etc, it breaks down into sugar and indigo. It is the source of natural indigo. 2. <physiology> An indigo-forming substance, found in urine, and other animal fluids, and convertible into red and blue indigo (urrhodin and uroglaucin). Chemically, it is indoxyl sulphate of potash, C8H6NSO4K, and is derived from the indol formed in the alimentary canal. Synonym: uroxanthin. See: Indigo. Source: Websters Dictionary (01 Mar 1998) |
| plant leaves | Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (12 Dec 1998) |