GROWTH-STIMULATORY SUBSTANCES FOR VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGI IN BAHIA GRASS (PASPALUM-NOTATUM FLUGGE.) ROOTS

Authors
ISHII T NARUTAKI A SAWADA K AIKAWA J MATSUMOTO I KADOYA K
Citation
T. Ishii et al., GROWTH-STIMULATORY SUBSTANCES FOR VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGI IN BAHIA GRASS (PASPALUM-NOTATUM FLUGGE.) ROOTS, Plant and soil, 196(2), 1997, pp. 301-304
Citations number
15
Journal title
Plant and soil → ACNP
ISSN journal
0032079X
Volume
196
Issue
2
Year of publication
1997
Pages
301 - 304
Database
ISI
SICI code
0032-079X(1997)196:2<301:GSFVMF>2.0.ZU;2-A
Abstract
Three kinds of the growth stimulatory substances for vesicular-arbuscu lar mycorrhizal (VAM) fungi were isolated from the 25% methyl alcohol (MeOH) eluates of Bahia grass roots fractionated by flash chromatograp hy. One of them was identified as eupalitin (3,5-dihydroxy-6,7-dimetho xy-4'-hydroxy flavone). At 10 ppm, this compound significantly stimula ted the in vitro hyphal growth of a VAM fungus, Gigaspora ramisporopho ra Spain. The others were not identified. These results suggest that t he flavonoids such as eupalitin, and the unidentified compounds may ac t as signal molecules in VAM symbiosis.