. 2014 Jun 3;5:261. doi: 10.3389/fmicb.2014.00261

Table 3.

Examples of mycorrhization helper bacteria, with significant effects on ECM formation.

Fungi	Bacteria	MHB effect	Host plant	References
Laccaria laccata	Agrobacterium radiobacter	↑ mycorrhizal colonization	6-month-old pine and birch seedlings grown on sand-mica-rock substrate	Leyval and Berthelin, 1993
Suillus grevillei	Pseudomonas fluorescens strain 70	↑ Fungal growth	Fungi and bacteria were cultured from sporocarps found in Eurpoean larch forest	Varese et al., 1996
Suillus grevillei	Pseudomonas putida strain 42	↑ Fungal growth		Varese et al., 1996
Geopora species	Sphingomonas sp. 23L	↑ fungal inoculation, and tree growth	Willow tree cuttings potted in 1 kg of fly ash, bacterial inoculant was added	Hrynkiewicz et al., 2009
Lactarius rufus,	Paenibacillus sp. EJP73,	Altered root branching	Scots pine seedlings grown in vermiculite-peat moss microcosms	Aspray et al., 2006
Laccaria bicolor or	Burkholderia sp. EJP67,	↑L. bicolor mycorrhiza formation
Suillus luteus	Paenibacillus sp. EJP73	↑L. bicolor mycorrhiza formation
Suillus granulatus	Ralstonia basilensis,	Increased hyphal growth	1-week-old Japanese black pine was planted in autoclaved soil before inoculated with fungi	Kataoka et al., 2009
Cenococcum geophilum	Bacillus subtilis	Increased hyphal growth		Kataoka et al., 2009
Laccaria bicolor S238N	Pseudomonas fluorescens BBc6R8	Promotes presymbiotic fungal-survival and increases radial growth, hyphal apex density and branching angle	Pre-symbiotic, grown on Pachlewski medium	Deveau et al., 2007
Amantia muscaria	Streptomycetes nov. sp. 505	1.2–1.7 fold increase in second-order root mycorrhizal rate	4-weeks-old Norway spruce and Scots pine seedlings were grown on autoclaved peatmoss and perlite before inoculation	Schrey et al., 2005
Suillus bovinus	Streptomyces annulatus 1003 (AcH 1003)	1.2–1.7 fold increase in second-order root mycorrhizal rate		Schrey et al., 2005
Laccria laccata	Pseudomonas species, Bacillus species	↑ mycorrhizal colonization	Douglas-fir seeds were sown in inoculated vermiculite-peat moss polythene cells	Duponnois and Garbaye, 1991
Laccaria fraterna	Bacillus species	↑ mycorrhizal colonization	Eucalyptus seeds were sown in sphagnum peat-perlite before inoculation	Dunstan et al., 1998
Laccaria laccata	Pseudomonas species	↑ mycorrhizal colonization		Dunstan et al., 1998
Lacterius rufus	Paenibacillus species	↑ mycorrhizal colonization	Sterile Scots pine seedlings grown on agar petri dishes were used for inoculation once roots were 4.5–6 cm long	Poole et al., 2001
Lacterius rufus	Burkholderia species	↑ mycorrhizal colonization		Poole et al., 2001
Pisolithus alba	Pseudomonas monteilii	↑ mycorrhizal colonization	Soapbush seedlings were planted in autoclaved soapbush soil before inoculation	Founoune et al., 2002a
Pisolithus alba	Pseudomonas resinovorans	↑ mycorrhizal colonization		Founoune et al., 2002a
Pisolithus species	Pseudomonas species	↑ mycorrhizal colonization	Soapbush seedlings were planted in autoclaved soapbush soil before inoculation	Founoune et al., 2002b
Rhizopogon luteolus	Unidentified	↑ mycorrhizal colonization	Radiata pine seedlings were grown on autoclaved soil before inoculation	Garbaye and Bowen, 1989
Scleroderma species	Pseudomonas monteilii strain HR13	↑ mycorrhizal colonization	Acacia seedlings were grown on sterilized sand before inoculation	Duponnois and Plenchette, 2003
Pisolithus species	Pseudomonas monteilii strain HR13	↑ mycorrhizal colonization		Duponnois and Plenchette, 2003
Suillus luteus	Bacillus species	↑ root growth and mycorrhizal colonization	2-week-old Scots pine seedlings were grown on inoculated peat-vermiculate petri dishes	Bending et al., 2002