Mycobiota (original) (raw)

From Wikipedia, the free encyclopedia

Fungi present in a certain place

Mycobiota (plural noun, no singular) are a group of all the fungi present in a particular geographic region (e.g. "the mycobiota of Ireland") or habitat type (e.g. "the mycobiota of cocoa").[1][2] An analogous term for Mycobiota is funga.

Mycobiota exist on the surface and in the gastrointestinal system of humans.[3] There are as many as sixty-six genera and 184 species in the gastrointestinal tract of healthy people. Most of these are in the Candida genera.[3][4][5]

Though found to be present on the skin and in the gi tract in healthy individuals, the normal resident mycobiota can become pathogenic in those who are immunocompromised.[6][7] Such multispecies infections lead to higher mortalities.[8] In addition hospital-acquired infections by C. albicans have become a cause of major health concerns.[9][10] A high mortality rate of 40-60% is associated with systemic infection.[10][11][12][13][14][5] The best-studied of these are Candida species due to their ability to become pathogenic in immunocompromised and even in healthy hosts.[13][14][5] Yeasts are also present on the skin, such as Malassezia species, where they consume oils secreted from the sebaceous glands.[15][16][12] Pityrosporum (Malassezia) ovale, which is lipid-dependent and found only on humans. P. ovale was later divided into two species, P. ovale and P. orbiculare, but current sources consider these terms to refer to a single species of fungus, with M. furfur the preferred name.[17]

There is a peer reviewed mycological journal titled Mycobiota.

  1. ^ "LIAS Glossary". Archived from the original on 11 December 2013. Retrieved 14 August 2013.
  2. ^ Copetti, Marina V.; Iamanaka, Beatriz T.; Frisvad, Jens C.; Pereira, José L.; Taniwaki, Marta H. (December 2011). "Mycobiota of cocoa: From farm to chocolate". Food Microbiology. 28 (8): 1499–1504. doi:10.1016/j.fm.2011.08.005. PMID 21925035.
  3. ^ a b Mukherjee, Pranab K.; Sendid, Boualem; Hoarau, Gautier; Colombel, Jean-Frédéric; Poulain, Daniel; Ghannoum, Mahmoud A. (February 2015). "Mycobiota in gastrointestinal diseases". Nature Reviews. Gastroenterology & Hepatology. 12 (2): 77–87. doi:10.1038/nrgastro.2014.188. ISSN 1759-5053. PMID 25385227. S2CID 5370536.
  4. ^ Kerawala, C; Newlands, C, eds. (2010). Oral and maxillofacial surgery. Oxford: Oxford University Press. pp. 446, 447. ISBN 978-0-19-920483-0.
  5. ^ a b c Erdogan, Askin; Rao, Satish S. C. (April 2015). "Small Intestinal Fungal Overgrowth". Current Gastroenterology Reports. 17 (4). doi:10.1007/s11894-015-0436-2. PMID 25786900. S2CID 3098136. Small intestinal fungal overgrowth (SIFO) is characterized by the presence of excessive number of fungal organisms in the small intestine associated with gastrointestinal (GI) symptoms. Candidiasis is known to cause GI symptoms particularly in immunocompromised patients or those receiving steroids or antibiotics. However, only recently, there is emerging literature that an overgrowth of fungus in the small intestine of non-immunocompromised subjects may cause unexplained GI symptoms. Two recent studies showed that 26 % (24/94) and 25.3 % (38/150) of a series of patients with unexplained GI symptoms had SIFO. The most common symptoms observed in these patients were belching, bloating, indigestion, nausea, diarrhea, and gas. ... Fungal-bacterial interaction may act in different ways and may either be synergistic or antagonistic or symbiotic [29]. Some bacteria such as Lactobacillus species can interact and inhibit both the virulence and growth of Candida species in the gut by producing hydrogen peroxide [30]. Any damage to the mucosal barrier or disruption of GI microbiota with chemotherapy or antibiotic use, inflammatory processes, activation of immune molecules and disruption of epithelial repair may all cause fungal overgrowth [27].
  6. ^ Peters, Brian M.; Jabra-Rizk, Mary Ann; Scheper, Mark A.; Leid, Jeff G.; Costerton, John William; Shirtliff, Mark E. (2010). "Microbial interactions and differential protein expression in Staphylococcus aureus_–_Candida albicans dual-species biofilms". FEMS Immunology & Medical Microbiology. 59 (3): 493–503. doi:10.1111/j.1574-695X.2010.00710.x. PMC 2936118. PMID 20608978.
  7. ^ Lin, Yi Jey; Alsad, Lina; Vogel, Fabio; Koppar, Shardul; Nevarez, Leslie; Auguste, Fabrice; Seymour, John; Syed, Aisha; Christoph, Kristina; Loomis, Joshua S. (2013). "Interactions between Candida albicans and Staphylococcus aureus within mixed species biofilms". BIOS. 84: 30–39. doi:10.1893/0005-3155-84.1.30. S2CID 96930404.
  8. ^ Zago, Chaiene Evelin; Silva, Sónia; Sanitá, Paula Volpato; Barbugli, Paula Aboud; Dias, Carla Maria Improta; Lordello, Virgínia Barreto; Vergani, Carlos Eduardo (2015). "Dynamics of Biofilm Formation and the Interaction between Candida albicans and Methicillin-Susceptible (MSSA) and -Resistant Staphylococcus aureus (MRSA)". PLOS ONE. 10 (4): e0123206. Bibcode:2015PLoSO..1023206Z. doi:10.1371/journal.pone.0123206. PMC 4395328. PMID 25875834.
  9. ^ Tortora, Gerald J. (2010). Microbiology: An Introduction. San Francisco, CA: Pearson Benjamin Cummings. p. 758.
  10. ^ a b Calderone, A; Clancy, CJ, eds. (2012). Candida and Candidiasis (2nd ed.). ASM Press. ISBN 978-1-55581-539-4.
  11. ^ Weinberger, M (2016-04-16). "Characteristics of candidaemia with Candida-albicans compared with non-albicans Candida species and predictors of mortality". J Hosp Infect. 61 (2): 146–54. doi:10.1016/j.jhin.2005.02.009. PMID 16009456.
  12. ^ a b Cui, Lijia; Morris, Alison; Ghedin, Elodie (2013). "The human mycobiome in health and disease". Genome Medicine. 5 (7): 63. doi:10.1186/gm467. PMC 3978422. PMID 23899327.
  13. ^ a b Martins, Natália; Ferreira, Isabel C. F. R.; Barros, Lillian; Silva, Sónia; Henriques, Mariana (June 2014). "Candidiasis: Predisposing Factors, Prevention, Diagnosis and Alternative Treatment" (PDF). Mycopathologia. 177 (5–6): 223–240. doi:10.1007/s11046-014-9749-1. hdl:10198/10147. S2CID 795450. Archived (PDF) from the original on 2017-08-17. Retrieved 2019-09-19.
  14. ^ a b Wang, Z. K.; Yang, Y. S.; Stefka, A. T.; Sun, G.; Peng, L. H. (April 2014). "Review article: fungal microbiota and digestive diseases". Alimentary Pharmacology & Therapeutics. 39 (8): 751–766. doi:10.1111/apt.12665.
  15. ^ Marcon, M J; Powell, D A (April 1992). "Human infections due to Malassezia spp". Clinical Microbiology Reviews. 5 (2): 101–119. doi:10.1128/CMR.5.2.101. PMC 358230. PMID 1576583.
  16. ^ Roth, R R; James, W D (October 1988). "Microbial Ecology of the Skin". Annual Review of Microbiology. 42 (1): 441–464. doi:10.1146/annurev.mi.42.100188.002301. PMID 3144238.
  17. ^ Freedberg; et al., eds. (2003). Fitzpatrick's Dermatology in General Medicine (6th ed.). McGraw-Hill. p. 1187. ISBN 0-07-138067-1.