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单词 conducting bundle
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conducting bundle
c. Botany, in conducting bundle, conducting cell, conducting sheath, conducting strand, conducting tissue.
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1873 F. H. Hooker & J. D. Hooker tr. E. Le Maout & J. Decaisne Gen. Syst. Bot. 70 A moist and loose parenchyma, named conducting tissue.
1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 499 The ‘conducting-tissue’, down which the pollen-tubes grow till they reach the cavity of the ovary.
1877 A. W. Bennett tr. O. W. Thomé Text-bk. Struct. & Physiol. Bot. ii. 48 In many Vascular Cryptogams, Gymnosperms, and Monocotyledons, as well as in a few Dicotyledons, rows of vascular cells are found in places where, from the analogy of other plants, one would expect to find vessels, the partition-walls not having become absorbed. Such structures compose what is called a conducting tissue; and the separate cells are not called vascular but conducting cells.
1880 C. E. Bessey Bot. 89 There may be a boundary tissue, a supporting tissue, and a conducting tissue, lying in the mass of less differentiated ground tissue.
1900 B. D. Jackson Gloss. Bot. Terms 60/2 Conducting Bundles, strands of elongated cells in leaves and even the stems of Mosses, simulating a vascular bundle.
1900 B. D. Jackson Gloss. Bot. Terms 60/2 Conducting Sheath, elongated parenchymatous cells in the inner cortex of the stem, continued into the leaves as an investiture of the vascular bundle.
1936 Discovery Jan. 5/2 A section of the woody conducting strand.
1959 Chambers's Encycl. IX. 321/1 The long-distance translocation of solutes about the plant is effected through specialized conducting tissues, the strands of xylem and of phloem.
extracted from conductingadj.
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