摘要
玉米丝黑穗病菌(Sphacelothecareiliana)冬孢子在PDA平板上萌发产生先菌丝,生长缓慢,然后以小孢子(平均6.5μm×2.5μm)芽殖形成小菌落。在糖溶液中萌发产生先菌丝和有隔担子,最后发育成有分隔和分叉的菌丝,主菌丝直径4.75μm,分枝菌丝直径2.5μm。内吸性杀菌剂多菌灵对冬孢子萌发、菌丝生长有抑制作用,加大了细胞膜渗漏;三唑酮对菌落、菌丝生长有抑制作用,加大细胞膜渗漏、抑制麦角甾醇合成;三唑酮与多菌灵等复配的种衣剂13号具有以上各项特性。
The teliospore of Sphacelotheca reiliana emerges promycelium with slowly on PDA media, its small spore(mean range 6.5μm×2.5μm)gemmates and forms small single pustule. Teliospore germinates into promycelium and phragmobasidium in the saccharide solution , developing into septate and branch hyphae, main hyphae diameter 4.75 μm and branch hyphae diameter 2.5μm.Systemic fungicide Car-bendazim inhibits teliospore germination and hyphae growth , its mechanism is aggravation of the cell membrane osmosis; Triadimefon plays an important role in enhancing membrane osmosis and inhibit-ing ergosterol anabolism; Seed Coating Pormulation No.13 consisted of Carbendazim, Triadimefon and other subeidiary chemicals , provides all properties ofabove fungicides.
出处
《西北农业学报》
CSCD
1995年第4期54-58,共5页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
玉米
丝黑穗病菌
三唑酮
多菌灵
抑菌作用
Sphacelotheca reiliana
Morphology
Carbendazim
Triadimefon
Inhibition of fungi-cides