Biology of Fungi and Their Bacterial Endosymbionts

Heritable symbioses, in which endosymbiotic bacteria (EB) are transmitted vertically between host generations, are an important source of evolutionary novelties. A primary example of such symbioses is the eukaryotic cell with its EB-derived organelles. Recent discoveries suggest that endosymbiosis-r...

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Published inAnnual review of phytopathology Vol. 56; no. 1; pp. 289 - 309
Main Authors Pawlowska, Teresa E, Gaspar, Maria L, Lastovetsky, Olga A, Mondo, Stephen J, Real-Ramirez, Imperio, Shakya, Evaniya, Bonfante, Paola
Format Journal Article
LanguageEnglish
Published United States Annual Reviews 25.08.2018
Subjects
arbuscular mycorrhizal fungi
Bacterial Physiological Phenomena - genetics
Candidatus
Evolution, Molecular
Fungi - genetics
Fungi - physiology
Glomeribacter gigasporarum,' '
Moeniiplasma glomeromycotorum
Mortierella elongata
Mycoavidus cysteinexigens
Rhizopus microsporus
Symbiosis - genetics
Mycoavidus cysteinexigens
arbuscular mycorrhizal fungi
‘Candidatus Glomeribacter gigasporarum,’ ‘Candidatus Moeniiplasma glomeromycotorum,’ Mortierella elongata
Rhizopus microsporus
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Summary:Heritable symbioses, in which endosymbiotic bacteria (EB) are transmitted vertically between host generations, are an important source of evolutionary novelties. A primary example of such symbioses is the eukaryotic cell with its EB-derived organelles. Recent discoveries suggest that endosymbiosis-related innovations can be also found in associations formed by early divergent fungi in the phylum Mucoromycota with heritable EB from two classes, Betaproteobacteria and Mollicutes. These symbioses exemplify novel types of host-symbiont interactions. Studies of these partnerships fuel theoretical models describing mechanisms that stabilize heritable symbioses, control the rate of molecular evolution, and enable the establishment of mutualisms. Lastly, by altering host phenotypes and metabolism, these associations represent an important instrument for probing the basic biology of the Mucoromycota hosts, which remain one of the least explored filamentous fungi.
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ISSN:0066-4286
1545-2107
DOI:10.1146/annurev-phyto-080417-045914