作者: Kerrie L. McDonald , David M. Cahill
关键词: Phytophthora sojae 、 Fluridone 、 Botany 、 Glycine 、 Hypocotyl 、 Abscisic acid 、 Phenylalanine ammonia-lyase 、 Biology 、 Ammonia-lyase activity 、 Inoculation
摘要: A comparison was made of the effects abscisic acid (ABA) and ABA biosynthesis inhibitor, norflurazon on interaction between soybean leaves Phytophthora sojae. Inoculation cv. Harosoy resulted in a compatible typified by presence spreading, water soaked lesions with ill-defined margins while inoculation Haro 1272 an incompatible restricted to site. Activity phenylalanine ammonia lyase (PAL) slowly increased but there rapid rise activity within 8 h after inoculation. When plants were treated normally race 1 changed what resembled PAL reduced control levels. There no visible effect combination. In contrast when that which high levels rapidly. 1. Stomata closed 2 resembling response stomata normal interactions not where remained open. On at sites 3 20 mm from point also closed. These results extend confirm idea is molecule may regulate outcome soybeans P.