Resistance of the AM Fungus Eucalyptus Seedlings against Pseudomonas solanacearum Photosynthetic Characteristics of Broussonetia papyrifera Seedlings Inoculated AM Fungus in Limestone Soil Substratum Effect of sodium phytate on alkaline phosphatase (ALP) activity in intraradical hyphae of AM fungi and development of its extraradical hyphae Response of N and P absorption on Broussonetia papyrifera seedlings to inoculate Vesicular-arbuscular mycorrhizal fungus