"Humic substances stimulated root colonization and production of extraradical mycelium by the mycorrhizal fungus Glomus claroideum. At the same time, both humic and fulvic acids tended to decrease populations of culturable bacteria and fungi in the hydroponic cultivation system. The results indicate that humic substances are stimulatory components of the soil environment with respect to arbuscular mycorrhizal fungi" . "Humic substances stimulated root colonization and production of extraradical mycelium by the mycorrhizal fungus Glomus claroideum. At the same time, both humic and fulvic acids tended to decrease populations of culturable bacteria and fungi in the hydroponic cultivation system. The results indicate that humic substances are stimulatory components of the soil environment with respect to arbuscular mycorrhizal fungi"@en . "Sudov\u00E1, Radka" . "fulvic acid; humic acid; iron"@en . "6"^^ . . "524035" . "Merhautov\u00E1, V\u011Bra" . "Hyphal growt and mycorrhiza formation by the arbuscular mycorrhizal fungus Glomus claroideum BEG 23 is stimulated by humic substances"@en . . . "RIV/67985939:_____/05:00022893" . "RIV/67985939:_____/05:00022893!RIV10-AV0-67985939" . "Gryndler, Milan" . "15" . . "Hyphal growt and mycorrhiza formation by the arbuscular mycorrhizal fungus Glomus claroideum BEG 23 is stimulated by humic substances" . . "000232795000001" . "P(GA526/00/1276), P(GA526/03/0188), Z(AV0Z50200510), Z(AV0Z60050516)" . "\u0158ez\u00E1\u010Dov\u00E1, Veronika" . . . . "Hr\u0161elov\u00E1, Hana" . . . . "[067FB7FF9209]" . "-" . "Hyphal growt and mycorrhiza formation by the arbuscular mycorrhizal fungus Glomus claroideum BEG 23 is stimulated by humic substances" . . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "6"^^ . . "1"^^ . . "Mycorrhiza" . . . . "Hyphal growt and mycorrhiza formation by the arbuscular mycorrhizal fungus Glomus claroideum BEG 23 is stimulated by humic substances"@en . . "0940-6360" . "Gryndlerov\u00E1, Hana" . .