Erwinia amylovora: the molecular basis of fireblight disease
Erwinia amylovora: the molecular basis of fireblight disease
复制标题
DOI：
10.1046/j.1364-3703.2000.00044.x
复制
发表时间：
2000-11-01
影响因子：
4.9
通讯作者：
Eastgate, Julie A.
中科院分区：
文献类型：
--
作者：
Eastgate, Julie A.
分类：细菌；变形杆菌；g亚纲；肠道细菌目；肠杆菌科；欧文氏属。微生物特性：革兰氏阴性，可移动的杆状。近缘种：胡萝卜腐菌(软腐病)，菊花(软腐病)，玉米斯图尔特枯萎病(泛亚)，草本植物(附生)。寄主范围：影响玫瑰科植物，主要是Pomoideae的成员。经济上重要的东道主是苹果和梨。由于目前控制措施的效果有限，火疫病爆发的商业影响更加严重。疾病症状：淀粉病感染的特征是被感染的组织浸水，随后是枯萎和组织坏死。坏死使组织呈现烧焦、变黑的外观，由此产生了火灾病的名称。症状通常局限于开花的苞片或幼芽，但在高度敏感的宿主中，可以系统传播，导致整棵树死亡。根据气候条件和宿主易感性，感染的严重程度可能会有所不同。有用的网站：http://www.agric.gov.ab.ca
Taxonomy: Bacteria; Proteobacteria; g subdivision; order Entero-bacteriales; family Enterobacteriaceae; genus Erwinia.Microbiological properties: Gram-negative, motile rods.Related species: E. carotovora (soft-rot diseases), E. chrysan-themi (soft-rot diseases), E. (Pantoea) stewartii (Stewart's wilt of corn), E. (Pantoea) herbicola (epiphyte).Host range: Affects rosaceous plants, primarily members of the Pomoideae. Economically important hosts are apple and pear. The commercial implications of fireblight outbreaks are aggravated by the limited effectiveness of current control measures.Disease symptoms: E. amylovora infection is characterized by water soaking of infected tissue, followed by wilting and tissue necrosis. Necrosis gives tissue a scorched, blackened appearance, giving rise to the name fireblight. Symptoms are often localized to blossom bracts or young shoots but, in highly susceptible hosts, can spread systemically resulting in death of the entire tree. Infections can vary in severity depending on climatic conditions and host susceptibility.Useful web site: http://www.agric.gov.ab.ca