Involvement of «Phaeoacremonium» spp. and «Cylindrocarpon destructans» with Grapevine Decline in Portugal

Involvement of «Phaeoacremonium» spp. and «Cylindrocarpon destructans» with Grapevine Decline in Portugal
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«Phaeoacremonia» spp. 和 «Cylindrocarpon destructans» 与葡萄牙葡萄藤衰退的关系

DOI：
10.1400/57814
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
H. Oliveira
H. Oliveira
中科院分区：
--
文献类型：
--
作者：
C. Rego;A. Phillips;A. Carvalho;H. Oliveira

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为了确定葡萄牙葡萄树幼嫩衰退的病因， 在过去的几年里，在砧木苗圃和年轻的葡萄园。砧木苗圃位于最重要的 对葡萄牙（Ribatejo-Oeste和Beira文学的）的生产区进行了调查。最常分离的真菌 从茎基部的变色木材中分离出的是锈果霉和褐顶霉属， 虽然枝顶孢属，拟茎点霉属，镰孢属，梭球菌属，粘帚霉属，茎点霉属和拟球壳霉属 sp.也在场。从不同的葡萄种植园收集了表现出衰退症状的年轻葡萄（2- 8岁）， 葡萄牙的地区。疾病的发病率是可变的，但下降的症状存在于几种葡萄酒， 以99 R、110 R、1103 P、101-14、140 Ru、5 BB和161-49为砧木嫁接的鲜食葡萄藤品种。隔离 从有症状的内部组织中发现，C. destructans和厚垣孢原毛平革菌为优势菌 真菌分离自砧木和嫁接组织的基部末端。在用C. 病原体从显示黑脚症状的接种植物中重新分离，但从未从 控制。结果表明，C. destructans和厚垣孢原毛平革菌可能与幼 葡萄牙的葡萄藤衰退。
In an attempt to determine the aetiology of young vine decline in Portugal a study was carried out in rootstock nurseries and in young vineyards during the last few years. Rootstock nurseries located in the most important production areas of Portugal (Ribatejo-Oeste and Beira Litoral) were surveyed. The fungi most frequently isolated from discoloured wood at the base of the stem were Cylindrocarpon destructans and Phaeoacremonium spp., although Acremonium sp., Phomopsis sp., Fusarium spp., Fusicoccum sp., Gliocladium sp., Phoma sp. and Sphaeropsis sp. were also present. Young vines (2- to 8-year-old) showing decline symptoms were collected from various vinegrowing regions of Portugal. Disease incidence was variable but decline symptoms were present in several wine and table grapevine cultivars grafted onto different rootstocks (99R, 110R, 1103P, 101-14, 140Ru, 5BB and 161-49). Isolations from symptomatic internal tissues revealed that also C. destructans and P. chlamydosporum were the predominant fungi isolated from the basal end of the rootstocks and grafting tissues. In the pathogenicity tests carried out with C. destructans isolates the pathogen was reisolated from inoculated plants showing black-foot symptoms but never from the controls. Our results point out that both C. destructans and P. chlamydosporum might be involved with young grapevine decline in Portugal.