Mycoplasmal Pathogens: New Causes for Old Diseases
نویسنده
چکیده
The year 1967 began a new era for plant pathology, as Japanese researchers reported the discovery of pathogens heretofore unknown in plants. These were called mycoplasmalike organisms, or MLO. Several diseases thought to be caused by viruses were subsequently reexamined, and MLO were identified as the true causal agents. The significance of this discovery is shown by the wide host range of MLO: 700 herbaceous and woody plants in 424 genera within 99 families. These pathogens are responsible for diseases of many economically important vegetable, ornamental, forest, and plantation crops from cool temper-
منابع مشابه
[Frontiers in Bioscience 7, d1410-1422, June 1, 2002] 1410 MOLECULAR PATHOGENESIS OF MYCOPLASMA ANIMAL RESPIRATORY PATHOGENS
1. Abstract 2. Introduction 3. Classification 4. Incidence 5. Genetics 6. Mycoplasmal diseases of ruminants 6.1. Mycoplasma mycoides subsp. mycoides SC 6.2. Mycoplasma bovis 6.2.1. Pathogenesis 6.2.2. Antigenic variation 6.3. Mycoplasma dispar 7. Mycoplasmal diseases of swine 7.1. Mycoplasma hyorhinis 7.2. Mycoplasma hyopneumoniae 7.2.1. Pathogenesis 7.2.2. Adherence 7.2.3. Ciliostasis 8. Mycop...
متن کاملMycoplasmal conjunctivitis in wild songbirds: the spread of a new contagious disease in a mobile host population.
A new mycoplasmal conjunctivitis was first reported in wild house finches (Carpodacus mexicanus) in early 1994. The causative agent was identified as Mycoplasma gallisepticum (MG), a nonzoonotic pathogen of poultry that had not been associated with disease in wild songbirds. Since the initial observations of affected house finches in the mid-Atlantic region, the disease has become widespread an...
متن کاملDeterminants for swine mycoplasmal pneumonia reproduction under experimental conditions: A systematic review and recursive partitioning analysis
One of the main Mycoplasma hyopneumoniae (M. hyopneumoniae) swine experimental model objectives is to reproduce mycoplasmal pneumonia (MP). Unfortunately, experimental validated protocols to maximize the chance to successfully achieve lung lesions induced by M. hyopneumoniae are not available at the moment. Thus, the objective of this work was to identify those factors that might have a major i...
متن کاملDiarrhea in nursery pigs associated with multiple concurrent pathogens
Differential diagnoses for diarrhea in weaned pigs include salmonellosis, swine dysentery, porcine proliferative enteropathy (PPE) caused by Lawsonia intracellularis, rotavirus and coronavirus enteritis, postweaning colibacillosis, trichuriasis, coccidiosis,1 and porcine colonic spirochetosis (PCS) caused by Brachyspira pilosicoli.2 Postweaning diarrhea may be associated with multiple concurren...
متن کاملIdentification of Pathogens in Nasopharyngeal Secretions of Patients with and without Pneumonia by Multiplex RT-PCR Method
Background and purpose: Pneumonia is the most common infectious cause of death. This study aimed at investigating the causative agent of pneumonia in nasopharyngeal secretions by PCR method. Materials and methods: This case-control study was carried out in patients (older than 19 years of age) suspected of pneumonia admitted to Qaemshahr Razi Hospital and Sari Imam Khomeini Hospital...
متن کامل