期刊
FUNGAL ECOLOGY
卷 2, 期 -, 页码 98-101出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funeco.2009.01.002
关键词
Choristoneura fumiferana; ELISA; Endophyte; Horizontal transmission; Picea glauca; Rugulosin
资金
- Atlantic Innovation Fund
- JD Irving, Limited
- National Research Council of Canada
- NSERC
We have studied the presence of the foliar endophtye of Picea glauca (white spruce) Phialocephala scopiformis CBS 120377 and its affect on the growth of Choristoneura fumiferana (spruce budworm). Here we examine the transmission of this fungus from 50 trees planted in a test field site to 250 P. glauca seedlings planted under the emerging canopies. After 3 y, the endophyte spread to 40 % of these trees (now 20-30 cm) with an average rugulosin (an anti-insect toxin) concentration of 1 mu g g(-1). All woody plants within 2 m of the test trees were collected. These were all shown to be negative for P. scopiformis except for some spruce seedlings that arose from seeds (natural generation). This is positive evidence for the horizontal transmission of P. scopiformis and its apparent specificity to P. glauca under field conditions. (C) 2009 Elsevier Ltd and The British Mycological Society. All rights reserved.
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