| 单词 | root gall |
| 释义 | > as lemmasroot gall root gall n. any of various galls occurring on the roots of plants, caused by nematodes, insects, fungi, or bacteria. ΘΚΠ the world > plants > disease or injury > [noun] > type of disease > bacterial diseases root gall1830 soft rot1886 heart rot1891 crown gall1894 bacteriosis1899 watermark disease1924 1830 J. Rennie Insect Archit. xix. 385 (caption) Root-Galls of the Oak, produced by Cynips quercus inferus ? drawn from a specimen. 1902 C. F. Hodge Nature Stud. & Life 215 If an apple tree becomes sickly from no visible cause..its roots should be examined, and if the root galls are found, it is generally best to dig it up. 2004 Jrnl. Nematol. 36 36 Of the 56 species and 43 genera of Asteraceae tested, 9 were highly resistant or immune to Meloidogyne incognita and did not form root galls. < as lemmas |
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