Advances in studies on active constituents from truffle and its artificial cultivation Optimization of Ultrasonic-assisted Extraction Process of Polysaccharides from Truffles by Response Surface Methodology Successful Mycorrhizal Synthesis of Tuber indicum with Two Indigenous Hosts and Their Recognition Truffle Cultivation-forestry: A New Strategy to Produce the Burgundy Truffle ( Tuber uncinatum Chatin) Verification of Chinese Names of Truffles and Their Conservation in Natural Habitats Progress Toward Truffle Cultivation in the Central USA Field Research and Cultivation of Truffles in New Zealand: an Update Wild Finnish Truffles Topographical and pedological factors adapted to the growth of domestic truffles (Tuber indicum).