What's the difference between rhizome and stem?

Rhizome


Definition:

  • (n.) A rootstock. See Rootstock.

Example Sentences:

  • (1) The results showed that the drug "Shan-Dou-Gen" used in different regions in China at present are the roots or rhizomes derived from 9 species: Sophora tonkinensis Gagnep.
  • (2) Rhizomes of five identified plants of the Paris species, Liliaceae, and Rhizoma Paridis which are sold as a crude drug named "Zao Xiu," "Qiyeyizhihua" or other names in nine different markets in China were tested for their effects on cultured cardiomyocytes.
  • (3) The effects of 5 pregnane compounds isolated from the rhizomes of Mandevilla illustris were examined against bradykinin (BK), Lysyl-bradykinin (L-BK), acetylcholine (ACh) and oxytocin (Ot)-induced contractions in the isolated uteri of the rat.
  • (4) The bezoars were composed of vegatable material from either a tuber or rhizome.
  • (5) The methanol extract from Cnidium rhizome was fractionated with chloroform and water fractions.
  • (6) Two glucosides to enhance histamine release from rat peritoneal mast cells were isolated from rhizomes of bracken fern (Pteridium aquilinum (L.) Kuhn) by column chromatography on Sephadex LH-20 and droplet counter-current chromatography, and named braxin A1 and A2.
  • (7) The rhizomes of Curcuma xanthorrhiza Roxb, are used in Indonesian folk medicine as cholagogues, aromatic stomachics, analgesics, a rheumatic remedy, etc.
  • (8) These data suggested that hoelen or peony root has a luteotropic effect but that atractylodes lanceae rhizome develops luteolysis.
  • (9) Six new steroidal saponins were isolated from the rhizomes of Smilax sieboldii.
  • (10) A new diglycoside, named dregeoside, was isolated from the rhizomes of Dregea sinensis var corrugata (Asclepiadaceae).
  • (11) Picroliv from root and rhizome of Picrorhiza kurroa showed reversal of low density lipoprotein (LDL) binding to paracetamol-induced damaged hepatocytes of rats.
  • (12) Alcoholic extracts of the rhizomes of Alpinia galanga, Andrographis paniculata, bark of Cinnamomum zeylanicum, rind of Citrus decumana, Desmodium triflorum, seeds of Hydnocarpus wightiana, rhizomes of Kaempfaria galanga, Lippia nodiflora, tender leaves of Morinda citrifolia, rhizomes of Pollia serzogonian, Tephrosia purpuria and rhizomes of Zingiber zerumbeth showed good in vitro anthelmintic activity against human Ascaris lumbricoides.
  • (13) In this study, we analyzed the effective components of ginger rhizomes.
  • (14) Glycosides of uncommon aglucones, characterized by the Ph-C5-Ph skeleton, were isolated from the rhizomes of some African Hypoxis species.
  • (15) The treatment group treated with the sugar-coated tablets of Ginseng-Rhizome saponin (GRS) orally for two months, one tablet (50 mg per tablet), three times a day.
  • (16) Effects of extract from a herb, Cnidium rhizome (Senkyu), on isolated guinea pig atria were investigated pharmacologically and electrophysiologically.
  • (17) The rhizomes and roots of Curcuma are commonly used as Traditional Chinese Drugs.
  • (18) Groups of ewes were gavaged Veratrum californicum root-rhizome material over various 3 day periods during early gestation and their late-term fetuses examined.
  • (19) Four compounds isolated from the rhizomes of Drynaria propinqua collected in Sichuan have been identified.
  • (20) Results with Bupleurum kaoi, the species native to Taiwan, showed that the roots, rhizomes and aerial parts (leaves and stem) have greater quantities of saikosaponins than cultivated B. falcatum var.

Stem


Definition:

  • (v. i.) Alt. of Steem
  • (n.) Alt. of Steem
  • (n.) The principal body of a tree, shrub, or plant, of any kind; the main stock; the part which supports the branches or the head or top.
  • (n.) A little branch which connects a fruit, flower, or leaf with a main branch; a peduncle, pedicel, or petiole; as, the stem of an apple or a cherry.
  • (n.) The stock of a family; a race or generation of progenitors.
  • (n.) A branch of a family.
  • (n.) A curved piece of timber to which the two sides of a ship are united at the fore end. The lower end of it is scarfed to the keel, and the bowsprit rests upon its upper end. Hence, the forward part of a vessel; the bow.
  • (n.) Fig.: An advanced or leading position; the lookout.
  • (n.) Anything resembling a stem or stalk; as, the stem of a tobacco pipe; the stem of a watch case, or that part to which the ring, by which it is suspended, is attached.
  • (n.) That part of a plant which bears leaves, or rudiments of leaves, whether rising above ground or wholly subterranean.
  • (n.) The entire central axis of a feather.
  • (n.) The basal portion of the body of one of the Pennatulacea, or of a gorgonian.
  • (n.) The short perpendicular line added to the body of a note; the tail of a crotchet, quaver, semiquaver, etc.
  • (n.) The part of an inflected word which remains unchanged (except by euphonic variations) throughout a given inflection; theme; base.
  • (v. t.) To remove the stem or stems from; as, to stem cherries; to remove the stem and its appendages (ribs and veins) from; as, to stem tobacco leaves.
  • (v. t.) To ram, as clay, into a blasting hole.
  • (v. t.) To oppose or cut with, or as with, the stem of a vessel; to resist, or make progress against; to stop or check the flow of, as a current.
  • (v. i.) To move forward against an obstacle, as a vessel against a current.

Example Sentences:

  • (1) However, CT will be insensitive in the detection of the more cephalic proximal lesions, especially those in the brain stem, basal cisterns, and skull base.
  • (2) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
  • (3) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
  • (4) A previous trial into the safety and feasibility of using bone marrow stem cells to treat MS, led by Neil Scolding, a clinical neuroscientist at Bristol University, was deemed a success last year.
  • (5) Proliferation of quiescent hematopoietic stem cells, purified by cell sorting and evaluated by spleen colony assay (CFU-S), was investigated by measuring the total cell number and CFU-S content and the DNA histogram at 20 and 48 hours of liquid culture.
  • (6) The last stems from trends such as declining birth rate, an increasingly mobile society, diminished importance of the nuclear family, and the diminishing attractiveness of professions involved with providing maintenance care.
  • (7) Following BHT administration, the alveolar stem cells (type II pneumocytes) proliferate and differentiate according to a biphasic pattern, with proliferative peaks at d 3 and 7.
  • (8) In testing the contribution of the long, curved stem to the torsional stability of uncemented prostheses by comparing it with other stems, the long, curved stem was the most stable, followed by a shorter straight stem, and a short, proximally curved stem.
  • (9) For example, stem pairing with a sequence other than wild-type resulted in normal protein binding in vitro but derepression of protein synthesis in vivo.
  • (10) These results indicate that this population (approximately 0.1% of bone marrow) may contain the pluripotent hematopoietic stem cell.
  • (11) Brain-stem CBF varied the most but did not correlate with clinical signs of brain-stem dysfunction.
  • (12) We infer from these results that endotoxin ameliorates the cyclical changes in blood cell counts by regulating hematopoietic proliferative activity at the stem cell level.
  • (13) The effects of inhibitors of aldehyde dehydrogenase activity on the sensitivity of murine pluripotent hematopoietic stem cells to oxazaphosphorine anticancer agents, e.g.
  • (14) Three strains of fluorescent pseudomonads (IS-1, IS-2, and IS-3) isolated from potato underground stems with roots showed in vitro antibiosis against 30 strains of the ring rot bacterium Clavibacter michiganensis subsp.
  • (15) This has stemmed from an inadequate understanding of the mechanisms involved in the formation and propagation of this condition.
  • (16) We therefore think that the detailed examination of CALLA(-) non-T non-B ALL cells using myeloid specific antibodies is helpful in clarifying the characteristics of myeloid precursors and the common bipotential stem cell of lymphoid and myeloid progenitors.
  • (17) Imaging studies had shown no change in his brain stem lesion, which at autopsy was found to be a focal collection of fibrillary astrocytes.
  • (18) These cells were hypothesized to be the stem cells for the corneal epithelium.
  • (19) Auditory brain stem potentials (ABP) were recorded in 27 patients with Bell's palsy during the early phase of the disease and 1-3 months later.
  • (20) The results indicate that stimulation of trigeminal subnucleus caudalis, a brain stem region that processes nociceptor afferent information, evokes a prompt increase in plasma ACTH.