| 单词 | ringspot virus |
| 释义 | > as lemmasringspot virus 2. Any of several plant diseases characterized by annular spots or marks on the leaves, caused by fungi or viruses (also more fully ringspot disease, ringspot virus). Also: the spots themselves occurring as a symptom of the disease.In quot. 1906 in the name of a disease-causing fungus. ΘΚΠ the world > plants > disease or injury > [noun] > characterized by part affected or appearance produced jaundice1600 black rot1769 root rot1831 leaf blight1849 leaf curl1850 black heart1862 icterus1866 albication1877 footrot1883 curl-leaf1886 silver top1890 stem-sickness1890 sleeping disease1899 mosaic1900 leaf mosaic1902 scorch1906 blotch1909 little leaf1911 ringspot1913 crinkle1920 vein banding1928 1906 M. C. Cooke Fungoid Pests 50 The ringed brown spot (Septoria Chrysanthemi)..has apparently been confined to Italy.] 1913 M. T. Cook Dis. Trop. Plants v. 88 (caption) Leaves of sugar-cane affected with ring-spot disease. 1927 Phytopathology 17 325 (caption) Ringspots in an early stage of development with margins of alternating zones of chlorotic and normal tissue. 1939 Jrnl. Pomol. 17 27 Ring Spot,..the disease [of lettuces] caused by the fungus mentioned [sc. Marssonina panattoniana], has been widespread in temperate regions from an early date. 1964 Phytopathology 54 702/1 No ringspot virus was detected in uninoculated primary leaves through the sixteenth day. 1980 Daily Tel. 16 Jan. 8/3 There are some Cornish cauliflower types which have not been available for about 30 years which we think were resistant to a disease called ringspot. 2005 BBC Focus Dec. 54/4 Papaya... How is it modified?..Engineered in Hawaii to be resistant to the ringspot virus. < as lemmas |
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