Successive Transmission of Resistance to Bluegrass Webworm to Perennial Ryegrass and Tall Fescue Plants by Artificial Inoculation with Acremonium Endophytes
Successive Transmission of Resistance to Bluegrass Webworm to Perennial Ryegrass and Tall Fescue Plants by Artificial Inoculation with Acremonium Endophytes
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通过人工接种枝顶孢内生菌将蓝草网虫抗性连续传递给多年生黑麦草和高羊茅植物
DOI：
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发表时间：
1997
影响因子：
0.4
通讯作者：
T. Uematsu
中科院分区：
文献类型：
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作者：
H. Koga;Y. Hirai;K. Kanda;T. Tsukiboshi;T. Uematsu
多年生黑麦草（Lolium perenne）和高羊茅（Festuca arundinacea）植物通过人工感染顶孢霉属（Acremium sp.）而获得了对蓝草网虫（Parapediasia teterrella Zincken）的抗性。和A. coenophialum，分别。痤疮内生菌是从多年生黑麦草和高羊茅植物中分离出来的，这些植物对蓝草网虫的幼虫具有抗性。通过将来自纯培养物的菌丝体插入分生组织区域来接种内生菌。接种后1-2个月通过光学显微镜监测接种植物中顶孢霉内生菌菌丝的存在。顶孢霉属成功感染多年生黑麦草的百分比。为9-33%，高羊茅加A. coenophialum 为7%。内生菌感染的植物和未感染的植物之间的外观没有差异。感染内生菌的植物对蓝草网虫具有摄食威慑作用，感染叶片上的幼虫存活率明显低于未感染叶片上的幼虫。内生菌被传播到由人工感染的多年生黑麦草和高羊茅植物产生的所有种子。从种子长出的植物也获得了对蓝草网虫的摄食威慑力。学科：生物防治 附加关键词：摄食威慑 JARQ 31, 109 115 (1997)
Perennial ryegrass (Lolium perenne) and tall fescue (Festuca arundinacea) plants were imparted the resistance to the bluegrass webworm (Parapediasia teterrella Zincken) by artificial infection with Acremonium sp. and A. coenophialum, respectively. The Acemonium endophytes were isolated from perennial ryegrass and tall fescue plants which were resistant to the larvae of the bluegrass webworm. The endophytes were inoculated by inserting the mycelia from the pure culture into the meristematic region. The presence of hyphae of the Acremonium endophytes in the inoculated plants was monitored by light microscopy 1-2 months after inoculation. The percentages of successful infection of perennial ryegrass with Acremonium sp. were 9-33%, and that of tall fescue with A. coenophialum was 7%. There were no differences in the appearance between the endophyte-infected plants and uninfected ones. The plants infected with the endophytes had acquired a feeding deterrent to the bluegrass webworm and the survival rate of the larvae on the infected leaf blades was definitely lower than that of the larvae on the uninfected leaf blades. The endophytes were transmitted to all seeds which were produced by the artificially infected perennial ryegrass and tall fescue plants. The plants grown from the seeds had also acquired the feeding deterrent to bluegrass webworm. Discipline: Biological control Additional key words: feeding deterrent JARQ 31, 109 115 (1997)