单词 | gummosis |
释义 | gummosisn. Botany. The pathological production and exudation of gum by trees; spec. a disease of fruit trees marked by this process. Cf. gumming n.1 2a. ΘΚΠ the world > plants > disease or injury > [noun] > associated with particular type of plant > trees > consisting of pathological production of gum gumming1703 gum1721 gummosis1882 resin flux1887 1882 Gardeners' Chron. 23 Sept. 396/2 The bacterial slime spreads, together with the sap-current, through the xylem, or woody part of the vascular bundles, and consequently infects the whole plant... The gum-disease (gummosis) of our stone-fruit trees might be explained in like manner. 1887 H. M. Ward tr. J. von Sachs Lect. Physiol. Plants xi. 180 Such gum-reservoirs are distinguished from the cases of proper Gummosis, where large groups of tissue in the older organs are changed into basorin and other kinds of gum. 1911 Ann. Bot. 25 108 Gummosis is a fairly common phenomenon in the vegetable kingdom. 1951 Dict. Gardening (Royal Hort. Soc.) II. 936/2 In gummosis the tree is in ill health and even small shoots show the exudation of gum. 1970 W. H. Smith Tree Pathol. xiii. 129 Both canker types are characterized by exudation or gummosis (leakage of fairly viscous sap) during wet weather in the spring. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018). < n.1882 |
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