RT Journal Article ID 2f7c661e2f7ee2ba A1 Tseng, Yu-Hsiu A1 Wu, Yu-Hsin A1 Li, Juh-Yiing A1 Ma, Jung-Tsun T1 10-Oxo-trans-8-decenoic Acid Stimulates the Growth of Fungi JF International Journal of Medicinal Mushrooms JO IJM YR 2006 FD 2006-07-18 VO 8 IS 2 SP 149 OP 160 AB A fungal metabolite, 10-oxo-trans-8-decenoic acid (ODA), was prepared as a crude ODA solution and its effect on mycelial growth on agar plates, in shaken flasks, in a jar fermentor, and in practical cultivation was studied. With the addition of 2.5-10 ppm to the agar, the ODA affected the mycelial growth of most fungi except for Lentinus edodes 271 and Volvariella volvacea. With the addition of ODA into broth, no effect on the biomass of L. edodes 271 and Pleurotus eryngii was found and at 10 ppm, relative laccase activity ratios were in the range of 1.07-5.90. ODA could stimulate the mycelial growth of Aspergillus niger or A. oryzae and increase their enzyme activities. ODA did not stimulate the mycelia growth of P. eryngii in shaken flasks but affected its growth in a jar fermentor. In plastic bag cultivation, ODA affected the yields of Auricularia fuscosuccinea white at early flushes. With the addition of ODA to sawdust, the percentages of fertile bags could be increased. Overall, ODA can be considered a bioactive substance or fungal hormone and may be beneficial in mycelia fermentation of edible and medicinal mushroom cultivation. PB Begell House LK https://www.dl.begellhouse.com/journals/708ae68d64b17c52,1e91bb632ed37d8b,2f7c661e2f7ee2ba.html