| 单词 | bridging species |
| 释义 | > as lemmasbridging species 3. Designating a species of plant that (supposedly) is able to transmit a parasitic fungus to another species of plant which is usually incapable of being infected with that fungus; esp. as bridging host, bridging species, etc. Now chiefly historical. ΘΚΠ the world > plants > by nutrition or respiration > [noun] > parasite plant > host plant nurse-plant1857 nurse-tree1857 bridging host1904 bridging species1904 1904 H. M. Ward in Philos. Trans. (Royal Soc.) B. 196 34 A certain species of grass (A) may be capable of infection by means of spores from two other host-plants (B and C), neither of which is predisposed to reciprocal infection, though both may be infected from such a ‘bridging’ species (A) as is referred to above. 1905 Jrnl. Mycol. 11 54 Puccinia Helianthi Schw. is a single species, having many races, for which H. annuus acts as a bridging host. 1924 Arkiv för Botanik No. 2 22 It was established, that Peridermium Pini can spread directly from pine to pine, without any bridging plant. 1979 C. E. Yarwood in Adv. in Virus Res. 25 186 In some cases the normal limits of host range may be breached by bridging hosts.., though the phenomenon of bridging species is commonly discredited. 2001 Plant Dis. 85 809/3 The bridging host theory was refuted by E. C. Stakman et al. < as lemmas |
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