Occurrence and transmission of mycovirus Cryphonectria hypovirus 1 from dejecta of Thyreophagus corticalis (Acari, Acaridae)

被引：18

作者：

Bouneb, Mabrouk ^{[1
]}

Turchetti, Tullio ^{[2
]}

Nannelli, Roberto ^{[1
]}

Roversi, Pio Federico ^{[1
]}

Paoli, Francesco ^{[1
]}

Danti, Roberto ^{[2
]}

Simoni, Sauro ^{[1
]}

机构：

[1] Res Ctr Agrobiol & Pedol, CREA ABP, Consiglio Ric Agr Anal Econ Agr, Via Lanciola 12-A, I-50125 Florence, Italy

[2] Inst Sustainable Plant Protect, CNR IPSP, Via Madonna Piano 10, I-50019 Florence, Italy

来源：

FUNGAL BIOLOGY | 2016年 / 120卷 / 03期

关键词：

Biocontrol; Chestnut blight; Corticolous mites; Hypovirulence; CHESTNUT BLIGHT FUNGUS; ENDOTHIA-PARASITICA; AMERICAN CHESTNUT; BIOLOGICAL-CONTROL; VEGETATIVE INCOMPATIBILITY; SPREAD; TREES; GENETICS; FITNESS; VECTOR;

D O I：

10.1016/j.funbio.2015.11.004

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The natural spread of virus-induced hypovirulence is highly involved in the recovery of blighted chestnut stands and orchards in Italy and in Europe. The potential role of corticolous mites as vectors of hypovirulence in blighted chestnut Castanea sativa (Mill.) stands was pointed out in previous reports. Here, by using RT-PCR, mycovirus Cryphonectria hypo virus (CHV1) was detected in Thyreophagus corticalis mites reared on a hypovirulent strain in monoxenic cultures and in their faecal pellets. Cryphonectria parasitica mycelium derived from mites' dejecta was able to transmit CHV1 to the virulent strain determining its conversion to hypovirulent one. This converted strain induced healing cankers on excised stems, differently from the un-converted virulent strain. Our findings prove the spread of CHV1 by corticolous mites that feed on virus-infected fungus and emphasize their potential role as vectors. (C) 2015 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

引用

页码：351 / 357

页数：7

共 36 条

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