| 释义 |
phytophthora|faɪˈtɒfθərə|
[mod.L., f. phyto- + Gr. ϕθορά destruction.]
A fungus of the genus so called, belonging to the order Peronosporales and including several parasitic species which damage plants, esp. Phytophthora infestans, the cause of potato blight. Also attrib.
[1876A. de Bary in Jrnl. Bot. XIV. 106 The characters..divide the..Peronosporeæ generally into two, perhaps better into three, genera, Cystopus, Peronospora, and a third, which may be called Phytophthera. ] Ibid. 109 Up to this time the sexual organs have not been observed in Phytophthora, the Potato-fungus.1925Jrnl. Agric. Res. XXX. 463/2 Practically all of the fruit on the ground showed the typical symptoms of Phytophthora rot. 1930Phytopathology XX. 209 Oospores had been reported previously in these two Phytophthoras. 1961A. Schoenfeld tr. Stapp's Bacterial Plant Pathogens ii. 127 Together with phytophthora rot and leaf curl disease, it [sc. bacterial ring-rot] is..one of the three most severe potato diseases in the U.S.A. 1969Hawkes & Hjarting Potatoes of Argentina, Brazil, Paraguay, & Uruguay ii. 266 It may therefore be possible to transfer valuable qualities of Phytophthora resistance from these Mexican series. |