鞭式节丛孢(Arthrobotrys flagrans CBS583.91)对氯化钠和氯化镉的耐受性

首次报道了鞭式节丛孢的氯化钠和氯化镉耐受性,在查氏平板上培养39d，鞭式节丛孢对氯化钠的最高耐受浓度为0．6mol L^-1，对氯化镉的最高耐受浓度为3．0mmol L^-1；在LCMA平板上，0．18mol L^-1氯化钠抑制三维菌网的形成，0．30mol L^-1氯化钠抑制厚垣孢子的萌发，0．05mmol L^-1氯化镉抑制三维菌网形成，0．07mmol L^-1氯化镉抑制厚垣孢子萌发．图1表3参8

TOLERANCE OF ARTHROBOTRYS FLAGRANS CBS 583.91 TO NaCl AND CdCl2

The hyphal growth of Arthrobotrys flagrans CBS583.91 was inhibited by increasing concentrations of NaCl and CdCl 2 after being inoculated for 39 d on Czapek's Solution Agar, and these might affect the formation of adhesive networks and germination of chlamydospores after being inoculated for 15 d on LCMA. For hyphal growth, the threshold concentration was c(NaCl)=0.6 mol L -1 or c(CdCl 2)=3.0 m mol L -1 . The formation of adhesive networks was not inhibited until c(NaCl)=0.18 mol L -1 or c(CdCl 2)=0.05 m mol L -1. Meanwhile the germination of chlamydospores was inhibited under c(NaCl)=0.30 mol L -1 or c(CdCl 2)=0.07 m mol L -1. The effects of concentrations of the two chemicals on germination of chlamydospores, adhesive networks-forming and growth were varied. Fig 1, Tab 3, Ref 8