Lateral rootlets

Lateral rootlets, which take origin in the pericambium. 

Pericambium, of a layer of actively growing meristematic cells, which has the power of producing lateral rootlets. 

Extracts of A. carmichaelUhave shown cardiotonic activity, including inotropic and chronotropic activities, leading to hypotension and/or hypertension. Analgesic and anesthetic activities have been reported. Hyoscine potentiates the action of aconitine. Aconitine and related compounds exhibit anti-inflammatory and analgesic properties in experimental animals. Chinese tradition), has been shown to raise the heart rate in sinus arrhjdhmia patients. ... 

Mechanical intrusion is the penetration of the matter to be dated by carbon of a different age from that of the sample itself if not taken into account, mechanical intrusion, too, leads to erroneous ages. The penetration of rootlets from growing plants into buried specimens, the infiltration of windblown organic matter, and the accidental insertion of fibers from brushes or other instruments used to clean a sample are examples of likely modern carbon intrusions into prospective samples, which lead to assigning to a sample later dates than the true ones old carbon intrusions, such as those caused by the penetration of carbonate minerals from groundwater, or of petrol or oil from excavating tools, on the other hand, are conducive to assigning earlier dates than the true ones. 

The kava buyer was told to always purchase the lateral roots and rootlets (called waka in Fiji) as the best drink was prepared from them. Next in preference were the thickened underground parts of the stem and stump comprising the rhizome (lewmd). The kasa (the first few nodes and internodes of the stem or stalk) of the plant was acceptable only if the waka or lewma was unavailable. On no account was already powdered kava to be used, as it might have been derived from the stalks, or a mixture of stalks and root, and there was the possibility of adulteration with sawdust, flour, soil, or other contaminants. Furthermore, the drinkers often examined and smelled the rootstock for freshness as deterioration occurs with storage (Duve and Prasad, 1983). In addition to potency, the older material also loses its characteristic odor and flavor, both of which are highly relished by the drinkers. 

Iron-deficiency in fruit trees (citrus and pomes) causes poor crops. A soil may be rich in iron, and yet so basic that the iron is not available to the rootlets. Ethylenediaminetetracetic acid (EDTA), sprayed on such soil, extracts iron by forming the EDTA-ferric complex, which is absorbed by the rootlets. Experiments with tomato plants, grown in an iron-EDTA medium labelled with Fe, and with in the 2-position of the acetate-group, showed that the plant absorbs the intact complex, which is translocated. Later, the organic part is broken down by metabolism which leaves the inorganic iron (Hill-Cottingham and Lloyd-Jones, 1961). When soil is poor in iron, ferric EDTA is sprayed on the ground with the same result. 

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