英语词汇“protophloem”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

protophloem n.

Brit.

/ˌprəʊtə(ʊ)ˈfləʊɛm/

U.S.

/ˌproʊdoʊˈfloʊˌɛm/

[after German Protophloëm (E. Russow 1873, in Mém. Acad. Impér. Sci. St.-Pétersbourg (Sér. 7) 19 4)] Botany the first-formed elements of the primary phloem, the cells of which mature before the elongation of the surrounding plant tissue; cf. metaphloem n.

ΘΚΠ

the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > xylem or phloem

liber1753

phloem1872

xylem1875

protophloem1884

protoxylem1887

internal phloem1891

metaxylem1894

hadrome1898

leptome1898

metaphloem1900

included phloem1910

1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 390 The first primitive elements of the phloem, Russow's protophloem.

1953 K. Esau Plant Anat. xii. 286 The primary phloem may be divided into protophloem and metaphloem.

2001 Genes & Devel. 15 264/1 The transition of protophloem cells to mature phloem in roots involves the formation of a sieve plate and occurs in the region of the maximum growth rate.

单词	protophloem
释义	> as lemmas protophloem protophloem n. Brit. /ˌprəʊtə(ʊ)ˈfləʊɛm/ , U.S. /ˌproʊdoʊˈfloʊˌɛm/ [after German Protophloëm (E. Russow 1873, in Mém. Acad. Impér. Sci. St.-Pétersbourg (Sér. 7) 19 4)] Botany the first-formed elements of the primary phloem, the cells of which mature before the elongation of the surrounding plant tissue; cf. metaphloem n. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > xylem or phloem liber1753 phloem1872 xylem1875 protophloem1884 protoxylem1887 internal phloem1891 metaxylem1894 hadrome1898 leptome1898 metaphloem1900 included phloem1910 1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 390 The first primitive elements of the phloem, Russow's protophloem. 1953 K. Esau Plant Anat. xii. 286 The primary phloem may be divided into protophloem and metaphloem. 2001 Genes & Devel. 15 264/1 The transition of protophloem cells to mature phloem in roots involves the formation of a sieve plate and occurs in the region of the maximum growth rate. extracted from proto-comb. form < as lemmas
随便看	emboldener emboldeners emboldening emboldens emboldish emboldishment embole embolectomies embolectomy emboli embolia embolic embolies embolimaeal embolimaean embolimaear embolimary embolisation embolism embolismaean embolismal embolismatical embolismic embolismical embolisms

> as lemmas