periclinaladj.n.

Brit.

/ˌpɛrɪˈklʌɪnl/, U.S.

/ˌpɛrəˈklaɪn(ə)l/

Origin: Formed within English, by derivation. Etymons: peri- prefix, -clinal comb. form.

Etymology: < peri- prefix + -clinal comb. form, after pericline n. In sense A. 2a after German periclin (J. von Sachs 1878, in Arbeiten des Bot. Inst. in Würzburg 2 58). In sense A. 2b after German Periklinal (in Periklinalchimäre (E. Baur 1909, in Zeitschr. f. induktive Abstammungs- u. Vererbungslehre 1 344)).

A. adj.

1. Geology. Sloping in all directions from a central point. Cf. anticlinal adj. 1.

ΘΚΠ

the world > the earth > structure of the earth > structural features > fold or dip > [adjective] > quaquaversal

quaquaversal1830

periclinal1860

1860 W. P. Jervis in Geologist 3 413 The author proposes the term periclinal, indicating that the strata fall off in every direction.

1881 Pop. Sci. Monthly May 53 The subjacent rock..would thus have a quaquaversal or periclinal dip away on all sides.

1939 Trans. Inst. Brit. Geographers 10 It thus appears that the periclinal bulging over the Weald..was strongly enhanced by the pre-Tertiary movements.

1990 Jrnl. Structural Geol. 12 59 (title) Flexural shear in a periclinal fold from the Irish Variscides.

2. Botany.

a. Originally (of a cell wall): parallel to the surface of a meristem. Later also (of cell division): taking place by the formation of periclinal walls; occupying or occurring in a layer parallel to the surface of an organ. Cf. anticlinal adj. 3.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [adjective] > of or having cell wall

septiferous1807

parietal1819

triseptate1874

periclinal1882

1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 951 The planes of the walls in a growing-point are classified thus: a. Periclinal, those which are curved in the same direction as the surface (seen in longitudinal section). b. Anticlinal... c. Radial... d. Transverse.

1914 M. Drummond tr. G. Haberlandt Physiol. Plant Anat. ii. 95 Each sextant divides by a periclinal wall into an inner and an outer cell.

1965 K. Esau Plant Anat. (ed. 2) iv. 76 The lateral meristems are particularly distinguished by divisions parallel with the nearest surface of the organ (periclinal divisions).

1992 M. Ingrouille Diversity & Evol. Land Plants 91 Periclinal and oblique divisions occur successively producing an apical cell and stalk cell, a jacket cell and internal cell among others.

b. Designating a plant chimera having distinct, often concentric or parallel layers of genetically different tissues that are produced by periclinal cell division. Cf. sectorial adj.¹ c.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [adjective] > of or having cell wall > of periclinal chimaera

periclinal1909

1909 Bot. Gaz. 48 72 The white-margined varieties of pelargonium are periclinal chimeras, the white and green cells of which are both genetically descended from cells of their own sort.

1959 New Biol. 30 39 In periclinal chimeras there is often great variation in the pigment distribution pattern.

1996 Plant Cell Rep. 15 386 Regeneration of green shoots from explants of an albino periclinal chimera.

B. n. Botany.

1. A periclinal cell wall or division. Now rare.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts

septum1720

pit1839

sieve-plate1875

sieve-pore1875

sieve-tube1875

anticlinal1882

periclinal1882

sieve-vessel1882

pit cavity1884

pit membrane1884

middle lamella1887

torus1887

tonoplast1895

pit canal1911

pit chamber1917

pit aperture1918

pit pair1933

pit field1934

margo1965

sieve-tissue-

1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) App. 951 If the outline..of the growing-point is a parabola, the periclinals will constitute a system of confocal parabolas of different parameter.

1915 Amer. Jrnl. Bot. 2 206 In the ventral region, occasional periclinals may form in the peripheral cells.

1972 Bot. Gaz. 133 169/1 It would seem that the upper ones [sc. cell divisions]..are independent periclinals.

2. A periclinal chimera. rare.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts > periclinal chimaera

periclinal1925

1925 Jrnl. Genetics 16 44 Simple white-over-green periclinals would presumably..give only white seedlings.

1971 New Phytologist 70 877 In most developmental studies of chimeras..the practice has been to exclude mericlinals and to study only periclinals.

Derivatives

periˈclinally adv. in a periclinal manner or direction.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [adverb] > in the manner of a periclinal chimaera

periclinally1890

1890 Cent. Dict. Periclinally, in such a manner as to dip on all sides from a central point.

1911 Bot. Gaz. 51 149 In Pelargonium the growing point is periclinally divided into white and green cells.

1963 Heredity 18 281 LI which does not divide periclinally in the apex may do so frequently during leaf development.

1991 Amer. Jrnl. Bot. 78 268/2 If only one cell..was transformed, then the regenerated plants would be sectorially and/or periclinally chimeral.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	periclinal
释义	periclinaladj.n. Brit. /ˌpɛrɪˈklʌɪnl/, U.S. /ˌpɛrəˈklaɪn(ə)l/ Origin: Formed within English, by derivation. Etymons: peri- prefix, -clinal comb. form. Etymology: < peri- prefix + -clinal comb. form, after pericline n. In sense A. 2a after German periclin (J. von Sachs 1878, in Arbeiten des Bot. Inst. in Würzburg 2 58). In sense A. 2b after German Periklinal (in Periklinalchimäre (E. Baur 1909, in Zeitschr. f. induktive Abstammungs- u. Vererbungslehre 1 344)). A. adj. 1. Geology. Sloping in all directions from a central point. Cf. anticlinal adj. 1. ΘΚΠ the world > the earth > structure of the earth > structural features > fold or dip > [adjective] > quaquaversal quaquaversal1830 periclinal1860 1860 W. P. Jervis in Geologist 3 413 The author proposes the term periclinal, indicating that the strata fall off in every direction. 1881 Pop. Sci. Monthly May 53 The subjacent rock..would thus have a quaquaversal or periclinal dip away on all sides. 1939 Trans. Inst. Brit. Geographers 10 It thus appears that the periclinal bulging over the Weald..was strongly enhanced by the pre-Tertiary movements. 1990 Jrnl. Structural Geol. 12 59 (title) Flexural shear in a periclinal fold from the Irish Variscides. 2. Botany. a. Originally (of a cell wall): parallel to the surface of a meristem. Later also (of cell division): taking place by the formation of periclinal walls; occupying or occurring in a layer parallel to the surface of an organ. Cf. anticlinal adj. 3. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [adjective] > of or having cell wall septiferous1807 parietal1819 triseptate1874 periclinal1882 1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 951 The planes of the walls in a growing-point are classified thus: a. Periclinal, those which are curved in the same direction as the surface (seen in longitudinal section). b. Anticlinal... c. Radial... d. Transverse. 1914 M. Drummond tr. G. Haberlandt Physiol. Plant Anat. ii. 95 Each sextant divides by a periclinal wall into an inner and an outer cell. 1965 K. Esau Plant Anat. (ed. 2) iv. 76 The lateral meristems are particularly distinguished by divisions parallel with the nearest surface of the organ (periclinal divisions). 1992 M. Ingrouille Diversity & Evol. Land Plants 91 Periclinal and oblique divisions occur successively producing an apical cell and stalk cell, a jacket cell and internal cell among others. b. Designating a plant chimera having distinct, often concentric or parallel layers of genetically different tissues that are produced by periclinal cell division. Cf. sectorial adj.¹ c. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [adjective] > of or having cell wall > of periclinal chimaera periclinal1909 1909 Bot. Gaz. 48 72 The white-margined varieties of pelargonium are periclinal chimeras, the white and green cells of which are both genetically descended from cells of their own sort. 1959 New Biol. 30 39 In periclinal chimeras there is often great variation in the pigment distribution pattern. 1996 Plant Cell Rep. 15 386 Regeneration of green shoots from explants of an albino periclinal chimera. B. n. Botany. 1. A periclinal cell wall or division. Now rare. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts septum1720 pit1839 sieve-plate1875 sieve-pore1875 sieve-tube1875 anticlinal1882 periclinal1882 sieve-vessel1882 pit cavity1884 pit membrane1884 middle lamella1887 torus1887 tonoplast1895 pit canal1911 pit chamber1917 pit aperture1918 pit pair1933 pit field1934 margo1965 sieve-tissue- 1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) App. 951 If the outline..of the growing-point is a parabola, the periclinals will constitute a system of confocal parabolas of different parameter. 1915 Amer. Jrnl. Bot. 2 206 In the ventral region, occasional periclinals may form in the peripheral cells. 1972 Bot. Gaz. 133 169/1 It would seem that the upper ones [sc. cell divisions]..are independent periclinals. 2. A periclinal chimera. rare. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts > periclinal chimaera periclinal1925 1925 Jrnl. Genetics 16 44 Simple white-over-green periclinals would presumably..give only white seedlings. 1971 New Phytologist 70 877 In most developmental studies of chimeras..the practice has been to exclude mericlinals and to study only periclinals. Derivatives periˈclinally adv. in a periclinal manner or direction. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [adverb] > in the manner of a periclinal chimaera periclinally1890 1890 Cent. Dict. Periclinally, in such a manner as to dip on all sides from a central point. 1911 Bot. Gaz. 51 149 In Pelargonium the growing point is periclinally divided into white and green cells. 1963 Heredity 18 281 LI which does not divide periclinally in the apex may do so frequently during leaf development. 1991 Amer. Jrnl. Bot. 78 268/2 If only one cell..was transformed, then the regenerated plants would be sectorially and/or periclinally chimeral. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < adj.n.1860
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