期刊
BIOCONTROL SCIENCE AND TECHNOLOGY
卷 25, 期 11, 页码 1299-1308出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09583157.2015.1056516
关键词
population dynamics; Esteya vermicola; endoparasitic fungus; Bursaphelenchus xylophilus; concentration
资金
- National Natural Science of China Foundation [31300545]
- Linyi Science & Technology Bureau [201312025]
- Linyi University Foundation [LYDX2013BS023]
Esteya vermicola (Ophiostomataceae), an endoparasitic fungus, exhibits great potential as a biological control agent against pinewood nematodes (PWNs). The present study reports the interaction between PWNs and E. vermicola at different spore concentrations, number of PWNs and the time of culture. The addition of PWNs enhanced the sporulation of E. vermicola after 10 days of culture. The 5-day-old cultures of E. vermicola prior to addition of PWNs increased the highest amount of sporulation than that of 10- or 15-day-old cultures. The PWNs were completely killed by E. vermicola in the pine tree powder culture medium at the concentrations of 10(7) and 10(8) colony-forming-units (CFU) per ml. The interaction of the PWNs and E. vermicola was that PWNs provide nutrition to E. vermicola, however, the PWNs can also feed on mycelium of E. vermicola. The effect of E. vermicola on control of PWNs was determined by the population size, time of pest infection and the duration of co-infection.
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