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单词 mesophyll
释义

mesophylln.

Brit. /ˈmɛsə(ʊ)fɪl/, U.S. /ˈmɛzəˌfɪl/; see also meso- comb. form.
Origin: A variant or alteration of another lexical item; perhaps modelled on a French lexical item. Etymon: mesophyllum n.
Etymology: < mesophyllum n. (see -phyll comb. form), perhaps after French mésophylle (see mesophyllum n.).
Botany.
The soft internal parenchyma of a leaf blade, lying between the epidermal layers. Frequently attributive.In many plants differentiated into palisade cells and spongy mesophyll.
ΘΚΠ
the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > specific types of tissue
parenchyma1651
parenchyme1811
suberin1815
mesophyllum1832
prosenchyma1832
cinenchyma1835
bothrenchyma1838
merenchyma1839
pleurenchyma1839
mesophyll1848
trachenchyma1848
inenchyma1851
sterenchyma1856
collenchyma1857
rhytidome1861
procambium1872
palisade tissue1875
trace1875
taphrenchyma1876
phellem1877
ground-tissue1882
palisade parenchyma1882
stone-sclerenchyma1884
stereome1885
aerenchyma1889
chlorenchyma1894
1848 J. Lindley Introd. Bot. (ed. 4) I. 253 The cellular tissue of the bark, mesophyll or cortical integument.
1881 C. Darwin Form. Veg. Mould 41 Some of the mesophyll cells contained nothing but broken down granular matter.
1914 M. Drummond tr. G. Haberlandt Physiol. Plant Anat. iv. 160 The coarse villi or shaggy hairs of the Melastomaceae often contain whole bundles of sclereides, which penetrate below into the mesophyll.
1946 A. Nelson Princ. Agric. Bot. iii. 59 Between the two epidermi, like the filling of a sandwich, lie the mesophyll tissues.
1992 M. Ingrouille Diversity & Evol. Land Plants 207 Many have a red colouration in the mesophyll layer directly under the palisade layer which acts to back scatter light increasing the efficiency of photoreception.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).
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n.1848
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