@article {Bailey2011,
	title = {{Dimorphism in methane seep-dwelling ecotypes of the largest known bacteria}},
	journal = {ISME Journal},
	volume = {5},
	number = {12},
	year = {2011},
	pages = {1926{\textendash}1935},
	publisher = {International Society for Microbial Ecology},
	abstract = {We present evidence for a dimorphic life cycle in the vacuolate sulfide-oxidizing bacteria that appears to involve the attachment of a spherical Thiomargarita-like cell to the exteriors of invertebrate integuments and other benthic substrates at methane seeps. The attached cell elongates to produce a stalk-like form before budding off spherical daughter cells resembling free-living Thiomargarita that are abundant in surrounding sulfidic seep sediments. The relationship between the attached parent cell and free-living daughter cell is reminiscent of the dimorphic life modes of the prosthecate Alphaproteobacteria, but on a grand scale, with individual elongate cells reaching nearly a millimeter in length. Abundant growth of attached Thiomargarita-like bacteria on the integuments of gastropods and other seep fauna provides not only a novel ecological niche for these giant bacteria, but also for animals that may benefit from epibiont colonization.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {1751-7362},
	doi = {10.1038/ismej.2011.66},
	url = {http://www.nature.com/ismej/journal/v5/n12/suppinfo/ismej201166s1.html 10.1038/ismej.2011.66},
	author = {Bailey, J V and Salman, V and Rouse, G W and Schulz-Vogt, H and Levin, L A and Orphan, V J}
}
@article {Bailey2010,
	title = {{Pseudofossils in relict methane seep carbonates resemble endemic microbial consortia}},
	journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},
	volume = {285},
	number = {1-2},
	year = {2010},
	pages = {131{\textendash}142},
	abstract = {Pleistocene-age methane seep carbonates from the Eel River Basin, California contain aggregate-like structures composed of tightly-packed hollow spheres that morphologically resemble syntrophic archaeal{\textendash}bacterial consortia known to catalyze the anaerobic oxidation of methane (AOM). Tetragonal microstructures also present in the carbonates resemble seep-endemic Methanosarcinales cell clusters. Despite morphological similarities to the seep-endemic microbes that likely mediated the authigenesis of Eel River Basin carbonates and sulfides, detailed petrographic, SEM, and magnetic microscopic imaging, remanence rock magnetism, laser Raman, and energy dispersive X-ray spectroscopy, suggest that these microstructures are not microfossils, but rather mineral structures that result from the diagenetic alteration of euhedral Fe-sulfide framboids. Electron microscopy shows that during diagenesis, reaction rims composed of Fe oxide form around framboid microcrystalites. Subsequent dissolution of greigite or pyrite crystals leaves behind hollow cell-like casings (external molds) {\textemdash} a transformation that occurs on timescales of \~{}100 kyr or less. Despite their superficial resemblance to morphologically-distinctive extant microbes in local sediments, the presence of acellular precursor grains, as well as of partially-altered transitional forms, complicate the interpretation of these and other framboidal microstructures that have been reported from the rock record.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0031-0182},
	doi = {10.1016/j.palaeo.2009.11.002},
	url = {http://dx.doi.org/10.1016/j.palaeo.2009.11.002},
	author = {Bailey, J V and Raub, T D and Meckler, A N and Harrison, B K and Raub, T M D and Green, A M and Orphan, V J}
}
