Journal of the Japanese Society for Horticultural Science
Online ISSN : 1880-358X
Print ISSN : 0013-7626
ISSN-L : 0013-7626
Growth Stimulants for Vesicular-Arbuscular Mycorrhizal Fungi in Satsuma Mandarin Pomace
Jiro AikawaTakaaki IshiiMakoto KuramotoKazuomi Kadoya
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2000 Volume 69 Issue 4 Pages 385-389

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Abstract

The isolation and identification of growth stimulants for vesicular-arbuscular mycorrhizal (VAM) fungi in the 25% methanol (MeOH) extracts of satsuma mandarin (Citrus unshiu Marc.) pomace extracts were carried out. Three compounds were isolated from the eluates by using a high pressure liquid chromatograph (HPLC). When the effect of the three compounds was tested on the in vitro hyphal growth of a VAM fungus, Gigaspora margarita, two compounds had a stimulatory effect. The two stimulants were identified as hesperidin (hesperetin-7-β-rutinoside) and narirutin (naringenin-7-β-rutinoside). Narirutin at 1 to 30 ppm and hesperidin at 1 to 10 ppm significantly stimulated the hyphal growth of G. margarita.

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