Pneumocystis jirovecii is a yeast-like fungus of the genus Pneumocystis. The causative organism of Pneumocystis pneumonia, it is an important human pathogen, particularly among immunocompromised hosts.
Mycology is the study of fungi. Fungi are aerobic or facultatively anaerobic absorptive chemoheterotrophs. Most fungi are decomposers, and a few are parasites of plants and animals. Of the more than 1.5 million species about 300 are pathogenic, however the number of serious fungal infections is increasing. Molds and fleshy fungi consist of long filaments of cells joined together (hyphae). A fungal thallus (body) is the vegetative, nonreproductive part of the organism and consists of a tangled mass of hyphae called a mycelium. Septa usually have openings that allow the cytoplasm of adjacent “cells” to be continuous. Pneumocystis jirovecii is a yeast-like fungus of the genus Pneumocystis. The causative organism of Pneumocystis pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. Prior to its discovery as a human-specific pathogen, P. jiroveci was known as P. carinii. The complete lifecycles of any of the species of Pneumocystis are not known, but presumably all resemble the others in the genus. The terminology follows zoological terms, rather than mycological terms, reflecting the initial misdetermination as a protozoan parasite. It is an extracellular parasite The following infectious agents were diagnosed in 21 children (36.2%): Aerobic bacteria (8), Chlamydia trachomatis (5), Pneumocystis carinii (3), Cytomegalovirus (3), Cytomegalovirus and Chlamydia trachomatis (1), Aerobic bacteria and Cytomegalovirus (1). The investigation of etiological agents associated with respiratory infection sought evidence of aerobic bacteria (blood cultures), Chlamydia trachomatis and Cytomegalovirus (serology), and Pneumocystis carinii (direct microscopic exam of tracheal aspirate). Pneumocystis pneumonia. Pneumocystis pneumonia (PCP) is a serious illness caused by the fungus Pneumocystis jirovecii. PCP is one of the most frequent and severe opportunistic infections in people with weakened immune systems, particularly people with HIV/AIDS Aerobic bacteria, Chlamydia trachomatis, Pneumocystis carinii and Cytomegalovirus as agents of severe pneumonia in small infants. Ejzenberg B, Melles H, Melles C, Dias R, Baldacci ER, Okay Y. Pediatrics Department, University of Sao São, Paulo. brasil The investigation of etiological agents associated with respiratory infection sought evidence of aerobic bacteria (blood cultures), Chlamydia trachomatis and Cytomegalovirus (serology), and Pneumocystis carinii (direct microscopic exam of tracheal aspirate). The investigation was carried out prospectively on the etiological agents associated with respiratory infection to look for evidence of aerobic bacteria (blood cultures), Chlamydia trachomatis and Cytomegalovirus (serology), and Pneumocystis carinii (direct microscopy of tracheal aspirated material). The investigation of etiological agents associated with respiratory infection sought evidence of aerobic bacteria (blood cultures), Chlamydia trachomatis and Cytomegalovirus (serology), and Pneumocystis carinii (direct microscopic exam of tracheal aspirate). Historical and even recent reports of P. carinii from humans are based upon older classifications (still used by many, or those still debating the recognition of distinct species in the genus Pneumocystis) which does not mean that the true P. carinii from rats actually infects humans. The complete lifecycles of any of the species of Pneumocystis are not known, but presumably all resemble the others in the genus. The terminology follows zoological terms, rather than mycological terms, reflecting the initial misdetermination as a protozoan parasite. It is an extracellular parasite
http://classes.midlandstech.edu/carterp/Courses/bio225/chap12/lecture1.htm https://en.wikipedia.org/wiki/Pneumocystis_jiroveci http://www.ncbi.nlm.nih.gov/pubmed/8762633 http://www.cdc.gov/fungal/diseases/pneumocystis-pneumonia/index.html http://www.ncbi.nlm.nih.gov/pubmed/8762633 http://www.ncbi.nlm.nih.gov/pubmed/8762633 https://en.wikipedia.org/wiki/Pneumocystis_jiroveci
is pneumocystis jiroveci aerobic or anaerobic