营养体: 一、无隔菌丝体 二、有的菌丝形成蔓丝、假根、吸器、吸盘

一、什么是真菌? 真菌是有真正细胞核,没有叶绿 素的生物,它们一般都进有无性繁 殖和有性生殖,能产生孢子,它们 的营养体通常是丝状的,且有分枝 的结构,具有几丁质或纤维素的细 胞壁,并且常常是进行吸收营养的 生物

第一节植物病害的流行 病害流行---病害在植物群体中大量而严重的发生,对农业生产造成巨大的损失的现象

第一节 生物间的相互关系 第二节 植物病原物的寄生性和致病性

慢性肉芽肿性疾病 (chronic guanulomatous diseasse) 一、X连锁/常染色体隐性遗传性疾病 二、 NADPH氧化酶缺乏 三、过氧化氢酶阳性菌感染

ANTITHROMBOTIC PROPERTIES Inhibition of platelet aggregation: PGL NO, ADPase Anticoagulant -binding and inhibition of thrombin: Antithrombin acceleration by heparin-like molecules, thrombomodulin activation of protein C/S, a2-macroglobulin. Fibrinlysis: Tissue plasminogen activator (tPA)

Motional pathway of embolus: Embolus from left heart cavity or arterial system Embolus from right heart cavity or venous system Embolus from portal veins Paradoxical embolism Retrograde ethrombus

CELLULAR ADAPTATION Excessive physiologic stresses. Some pathologic stimuli. A new, but altered state preserving the viability of the cell

Definition of pathology Pathology is to study diseases by scientific methods. Disease may be defined as an abnormal alteration of structure or function in any part of the body

FATTY CHANGE Excessive entry of free fatty acids into the liver (starvation, corticosteroid therapy). Enhanced fatty acid synthesis. Decreased fatty acid oxidation. Increased esterification of fatty acid to triglycerides (alcohol). Decreased apoprotein synthesis (CCl). Impaired lipoprotein secretion from the liver (alcohol)