1) pathogens causing downy mildews
霜霉病菌类
2) Pseudoperonospora cubensis
霜霉病菌
1.
Several infection factors of Pseudoperonospora cubensis.;
黄瓜霜霉病菌侵染若干因子的研究
2.
The efficacy of 10% ZJ 0712 SC was evaluated in laboratory and fieldagainst Sphaerotheca fuliginea and Pseudoperonospora cubensis of cucumber.
47μg/mL,对霜霉病菌P seudoperonospora cubensis的EC50和EC90值分别为0。
3) Plasmopara viticola
霜霉病菌
1.
The Relationship between Cell Wall Hydrolase Activity Induced by Plasmopara viticola and Resistance of Grapevine to Downy Mildew;
霜霉病菌对葡萄细胞壁水解酶的诱导作用与寄主抗病性的关系
2.
The relationships,which are among the different grapevine varieties resistance to downy mildew resulted from inoculation of Plasmopara viticola,the enzymatic activity of phenylalanine ammonia lyase(PAL),the content of chlorogenec acid,and the content of lignin,are studied using pot culture and inoculation system.
对不同抗病类型的葡萄品种受霜霉病菌(Plasmopara viticola)侵染后苯丙烷代谢途径的苯丙氨酸解氨酶(PAL)活性及绿原酸和木质素含量的变化与抗病性的关系进行了相关分析。
3.
The relationship between the activity of POD and its change of isoenzyme tables and the resistance to grapevine downy mildew with different disease-resistant types of grapevine varieties by Plasmopara viticola was studied through applying the method of pot culture inoculation.
采用盆栽接种的方法研究了不同抗病类型的葡萄品种感染霜霉病菌(Plasmopara viticola)后,过氧化物酶(POD)活性及同工酶酶谱的变化与葡萄抗霜霉病的关系。
4) Peronophythora litchii
霜疫霉病菌
1.
A new method for highly effective isolation of Peronophythora litchii;
一种高效分离荔枝霜疫霉病菌的新方法
5) downy mildew of cucurbits
瓜类霜霉病
6) Pseudoperonospora cubensis
甜瓜霜霉病菌
1.
The control efficacies of different tissues extracts of 30 plants against Pseudoperonospora cubensis was tested by the leaf discs tests.
用叶圆盘生测法测定了30种植物不同组织部位的丙酮提取液对甜瓜霜霉病菌(Pseudoperonospora cubensis)的防治效果,其中侧柏(Piota orientalis (L。
2.
The inhibiting actions of different tissue extracts of 30 plant species on Pseudoperonospora cubensis were determined by leaf disc tests.
用叶圆盘生测法测定了30种植物不同组织部位的甲醇提取液对甜瓜霜霉病菌(Pseudoperonospora cubensis)的抑菌效果,其中番茄(Lycopersicon esculentum Mill。
补充资料：霜霉病菌类
| 霜霉病菌类 pathogens causing downy mildews 引起植物霜霉病的一类真菌。属真菌门卵菌纲霜霉目霜霉科，是种子植物的专性寄生菌。营养体为无隔多核菌丝，无性繁殖产生孢囊孢子。孢子囊产生于具有一定分枝方式的孢囊梗顶端。 霜霉菌主要是侵染双子叶植物，一些禾本科植物也可受害。霜霉病多发生在叶片上，病菌多从气孔侵入，菌丝在寄主的薄壁细胞间产生吸器，伸入细胞内吸取养分、水分而扩展。受侵染的叶片先是退绿，以后出现坏死斑，病菌扩展因受叶脉限制，病斑常呈多角形。如果侵染多汁肥厚的器官（嫩茎、花梗、花器)则引起组织的肿大畸形(如十字花科作物霜霉病）或器官的变态(如谷子白发病)。在湿度很高的情况下，病组织(常在叶背)常产生由病菌的孢囊梗和孢子囊构成的霜霉状物，呈白色至灰白色；淡紫色至紫黑色或黑色，依不同种类的霜霉病而异，是在田间识别霜霉病的重要特征之一。 中国发生的霜霉病主要有：黄瓜霜霉病、十字花科作物霜霉病、大豆霜霉病、葡萄霜霉病、莴苣霜霉病、谷子白发病和玉米、水稻、小麦等的黄化萎缩病。防治霜霉病主要采取选育抗病品种，加强栽培管理和做好病害流行的预测，及时喷药防治；对禾谷类作物的霜霉病应采取抗病品种、轮作和种子处理等综合措施。防治霜霉病的化学药剂有：铜剂、一些有机硫剂、百菌清、乙磷铝和瑞多霉等。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条