Interaction between AM fungi and Rhizobium and effects of flavonoids on it

Abstract

Abstract: Study showed that the biomass and nodule number of Astragalus sinicus,AM fungal infection rate,and hyphal enzyme activity of ALP and SDH were significant influenced by Rhizobium,AM fungi and flavonoids.Rh+AMF treatments had obvious differences with control in the biomass and nodule numbers of Astragalus sinicus,AM fungal infection rate and hyphal enzyme activity;and flavonoid treatments had more obvious differences with Rh+AMF treatments and control in these aspects,but no obvious differences were found in different flavonoids (apigenin and hesperitin) or in different concentrations (150 nmol·L^-1 and 1.5 μmol·L^-1) of the same flavonoid.The results showed that nodule-generation and nitrogen-fixation of Rhizobium and AM fungi infection were obvious promoted by Rhizobium and AM fungi,and this promotion effects were more significant when an appropriate amount of flavonoids was added in the Rh+AMF treatments.

Key words: Biomass, Nodule number, Infection rate, ALP, SDH

CLC Number:

Q938.1

DONG Changjin, ZHAO Bin . Interaction between AM fungi and Rhizobium and effects of flavonoids on it[J]. Chinese Journal of Applied Ecology, 2004, (9): 1585-1588.

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