What's the difference between equisetum and horsetail?
Equisetum
Definition:
(n.) A genus of vascular, cryptogamic, herbaceous plants; -- also called horsetails.
Example Sentences:
(1) The microtubules of root hairs of Raphanus sativus, Lepidium sativum, Equisetum hyemale, Limnobium stoloniferum, Ceratopteris thalictroides, Allium sativum and Urtica dioica were investigated using immunofluorescence and electron microscopy.
(2) Cortex cells of Equisetum hyemale are broken open while still in buffer, after initially being attached to poly-L-lysine-coated grids.
(3) Two ferredoxins were isolated from horsetail (Equisetum telmateia) and their amino acid sequences were determined by use of a sequence analyzer in combination with carboxypeptidase digestion and manual Edman degradation of tryptic peptides of carboxymethyl-ferredoxins.
(4) Chloroform extracts of Equisetum fluviatile, E. hiemale var.
(5) The substitution rates for the three codon positions and the intervening sequences show that in Psilotum both genes are transcribed and are under selection pressure, however, this seems not to be the case for Equisetum.
(6) Motile sperm of four ferns (Marsilea, Pteridium, Lygodium and Aneimia), a horsetail (Equisetum) and a liverwort (Marchantia) were fixed in the presence of tannic acid to visualise the dynein arms.
(7) Amino acid sequences of two ferredoxins isolated from Equisetum arvense were determined by conventional procedures.
(8) Several ultrastructural cytochemical methods are used to determine the constituents of the ripe nucleus of Equisetum arvense L. They show that: DNA, associated with an arginine-rich histone, is localized in central region of the nucleus; nucleoplasm is reduced to a thin peripheral coat and contains a probably lysine rich histone; RNA is not detectable; non histone proteins form lenticular amounts disposed against the nuclear membrane.
(9) Numerical parameters of microtubules in Raphanus, Equisetum and Limnobium were determined from dry-cleave preparations.
(10) Hybrid formation was detected by the endonucleolytical mode of the RNA-DNA specific action of RNase H. Provided that the hybrid interaction involved 6 successive base pairs, 5S rRNA loop c nucleotides 42-47 displayed accessibility in Escherichia coli, Bacillus stearothermophilus and Thermus thermophilus 5S rRNAs as well as in eukaryotic 5S rRNAs from Saccharomyces carlsbergensis, Rattus rattus and Equisetum arvense.
(11) Of these Pteridium aquilinum and Equisetum ramosissimum were found to have considerably more thiaminase activity and lower thiamine content than Malva parviflora, Pennisetum clandestinum and Medicago sativa.
(12) Using PCR across intron-exon boundaries we show that two different genes encode the catalytic subunit of the V-ATPase in Psilotum nudum and Equisetum arvense.
(13) The degree of difference in the sequences of the 18S coding region between C. reinhardtii and C. moewusii or C. eugametos is comparable to that between an angiosperm and Equisetum and may reflect an ancient divergence between two species in one algal genus.
(14) The mtDNA of Onoclea sensibilis (sensitive fern) is approximately 300 kb in size, while that of Equisetum arvense (common horsetail) is at least 200 kb.
(15) Histones were extracted from chromatin of the following: a moss (Polytrichum juniperinum); the primitive vascular plants Psilotum nudum and Equisetum arvense; a fern (Polypodium vulgare); the gymnosperms fir (Abies concolor), yew (Taxus canadensis) and Gingko biloba; the dicotyledonous angiosperms tobacco (Nicotiana tabacum) and maple (Acer saccharinum); and the monocotyledonous angiosperms corn (Zea mays) and lily (Lilium longiflorum).
(16) Terminal complexes not described before include the following: linear terminal complexes (TCs) with three rows in Eremosphaera, Microdictyon and Chaetomorpha; globular terminal complexes in Ophioglossum, Psilotum, Equisetum and Gingko.
(17) Analysis of the ferredoxin of the primitive vascular plant Equisetum indicates that the cysteine residue normally found at position 18 of plant-type ferredoxins is replaced by a valine, although the spectroscopic properties of the ferredoxins are unaffected.
Horsetail
Definition:
(n.) A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. See Illust. of Equisetum.
(n.) A Turkish standard, denoting rank.
Example Sentences:
(1) These facts suggested that duplication of the ferredoxin gene in one organism occurred at an early evolutionary stage long before the divergence of the two horsetail species.
(2) Isozymes of CuZn-superoxide dismutase (SOD) were purified from angiosperms (spinach and rice), fern (horsetail) and green alga (Spirogyra).
(3) The number of differences in amino acids between horsetail ferredoxins and other chloroplast-type ferredoxins indicated that the duplication occurred after divergence of horsetails from other plants.
(4) Two ferredoxins were isolated from horsetail (Equisetum telmateia) and their amino acid sequences were determined by use of a sequence analyzer in combination with carboxypeptidase digestion and manual Edman degradation of tryptic peptides of carboxymethyl-ferredoxins.
(5) Motile sperm of four ferns (Marsilea, Pteridium, Lygodium and Aneimia), a horsetail (Equisetum) and a liverwort (Marchantia) were fixed in the presence of tannic acid to visualise the dynein arms.
(6) A passenger resembling Ian, with a flat cap and a John Lennon moustache, snaps mobile phone photos of terraces lining the quarry walls, veritable hanging gardens with horsetail and eyebright.
(7) The visual inspection of the hay revealed a massive contamination (about 12% by mass) by horsetail.
(8) Axons of the basket cell type and "horsetail" axons associated with double bouquet cells of Cajal's original type were not impregnated.
(9) Some comments on the unique amino acid substitutions in horsetail ferredoxins are also presented.
(10) The mtDNA of Onoclea sensibilis (sensitive fern) is approximately 300 kb in size, while that of Equisetum arvense (common horsetail) is at least 200 kb.
(11) Amino acid sequences of amino-terminal regions of CuZn-SOD isozymes from spinach, rice and horsetail were determined and compared with those of CuZn-SODs from other plants.