Grey-scale brightfield micrograph of M. perideroedes Gr1T stained with safranin O. Scale bar represents 10 microns. - Source:1Aerobic heterotroph
Filamentous organisms that are most often observed in industrial plants, where they are implicated in bulking 2 3 4. Aerobic heterotrophs. Some may reduce nitrate and perhaps nitrite. In situ accumulation of acetate, propionate, glucose and amino acids 2. They can accumulate large amounts of PHA 2 3. An annotated ability for methylotrophy was not supported for axenic culture or for in situ strains 1. Their prevalence in industrial WWTPs, without the anaerobic tanks implemented in EBPR plants, indicates their ability to assimilate PHA likely provides advantage during intermittent periods of carbon starvation or under the unbalanced growth conditions (i.e. high COD to N:P ratio) that often characterize industrial waste streams 1.
Meg1028 + Meg983 4
 McIlroy, Lapidus, Thomsen, Han, Haynes, Lobos, et al. (2015): High quality draft genome sequence of Meganema perideroedes str. Gr1(T) and a proposal for its reclassification to the family Meganemaceae fam. nov. Stand Genomic Sci 10(): 23. doi:10.1186/s40793-015-0013-1
 Kragelund, Nielsen, Thomsen, Nielsen (2005): Ecophysiology of the filamentous Alphaproteobacterium Meganema perideroedes in activated sludge. FEMS Microbiol. Ecol. 54(1): 111-22. doi:10.1016/j.femsec.2005.03.002
 Kragelund, Kong, van der Waarde, Thelen, Eikelboom, Tandoi, et al. (2006): Ecophysiology of different filamentous Alphaproteobacteria in industrial wastewater treatment plants. Microbiology (Reading, Engl.) 152(Pt 10): 3003-12. doi:10.1099/mic.0.29249-0
 Thomsen, Blackall, de Muro, Nielsen, Nielsen (2006): Meganema perideroedes gen. nov., sp. nov., a filamentous alphaproteobacterium from activated sludge. Int. J. Syst. Evol. Microbiol. 56(Pt 8): 1865-8. doi:10.1099/ijs.0.02916-0