Different forms of nitrogen utilization and effect of exogenous glucose on their metabolism in germinating spores of AM fungus
丛枝菌根真菌萌发孢子利用不同氮素及外源葡萄糖对其代谢的影响

Nitrogen utilization and amino acids biosynthesis were examined in germinating spores of AM fungus Glomus intraradices Schenck & Smith after exposure to various N substrates,glucose and/or root exudates.N uptake and de novo amino acids biosynthesis were analyzed using stable isotopic labeling with mass spectrometric detection.HPLC-based analysis was used to measure amino acid levels.In the absence of exogenous nitrogen sources,germinating AM fungal spores utilized internal storage N compounds for biosynthes...