Endophytic fungi associated with Fallopia japonica (Polygonaceae) in Japan and their interactions with Puccinia polygoni-amphibii var. tovariae, a candidate for classical biological control

被引：36

作者：

Kurose, Daisuke ^{[1
]}

Furuya, Naruto ^{[2
]}

Tsuchiya, Kenichi ^{[2
]}

Tsushima, Seiya ^{[1
]}

Evans, Harry C. ^{[3
]}

机构：

[1] Natl Inst Agroenvironm Sci, Nat Resources Inventory Ctr, Tsukuba, Ibaraki 3058604, Japan

[2] Kyushu Univ, Fac Agr, Plant Pathol Lab, Higashi Ku, Fukuoka 8128581, Japan

[3] CABI Europe UK, Egham TW20 9TY, Surrey, England

来源：

FUNGAL BIOLOGY | 2012年 / 116卷 / 07期

基金：

日本学术振兴会;

关键词：

Endophyte diversity; ITS sequences; Japanese knotweed (Fallopia japonica); Phomopsis; Puccinia polygoni-amphibii var. tovariae; Synergistic interaction; HERBACEOUS PLANTS; XANTHIUM-OCCIDENTALE; CONTROL AGENT; THAILAND; SHRUBS; LEAVES; WHEAT; HOST; RUST;

D O I：

10.1016/j.funbio.2012.04.011

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Fallopia japonica (Polygonaceae), or Japanese knotweed, is now spreading globally, causing serious problems in Europe and North America in both natural and urban habitats. There is an urgent need for alternative management solutions, and classical biological control, using co-evolved natural enemies found in the native range, is currently being investigated. Here, we isolated fungal endophytes from F. japonica in Japan, its natural habitat, to find endophytes that might increase the virulence of a coevolved rust pathogen, Puccinia polygoni-amphibii var. tovariae. A total of 1581 fungal endophytes were recovered from F. japonica and classified into 15 taxa. Five genera (Colletotrichum, Pestalotiopsis, Phoma, Phomopsis, and Alternaria) were dominant as endophytes in F. japonica. A greenhouse study of the dominant endophyte pathogen interactions revealed three types of reactions: suppressive, synergistic, and neutral. in particular, one Phomopsis isolate - closely related to Diaporthe medusaea, based on ITS sequences - promoted the pathogenic aggressiveness of P. polygoni-amphibii var. tovariae and, therefore, this interaction is potentially useful to increase the effectiveness of the rust fungus as a biological control agent of F. japonica in its invasive range. (C) 2012 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

引用

页码：785 / 791

页数：7

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