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首页> 外文期刊>Plant Disease >Characterization and Pathogenicity of Botryosphaeriaceae Fungi Associated with Declining Urban Stands of Coast Redwood in California
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Characterization and Pathogenicity of Botryosphaeriaceae Fungi Associated with Declining Urban Stands of Coast Redwood in California

机译：加利福尼亚州海岸红木城市站立相关的Botry alphaeriaceae真菌的特征和致病性

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摘要

Coast redwood (Sequoia sempervirens) is among the most widely planted landscape trees in California (CA) but is in decline outside its natural range due to factors including prolonged drought and plant pathogens. We investigated associations of Botryosphaeriaceae fungi with declining coast redwood trees throughout CA. More than 100 samples were collected from 11 coastal and inland locations in CA. Fifty-nine Botryosphaeria-like fungal strains were isolated and 18 were selected for further study. Phylogenetic analysis of ITS and EF-lct sequence data confirmed the presence of Botryosphaeria dothidea, Neofusicoccum aus-trale, N. luteum, N. mediterraneum, and N. parvum. Pathogenicity testingshowed that although the Neofusicoccum species vary in virulence, all are more virulent that B. dothidea. N. australe caused the largest lesions, followed by N. luteum, N. parvum, and N. mediterraneum. Of the species recovered, only B. dothidea has beenpreviously confirmed as a pathogen of coast redwood in CA. These results confirm that multiple Botryosphaeriaceae species are associated with branch decline and dieback on coast redwood in CA, which agrees with similar studies on woody agricultural crops. Accurate diagnosis of fungal pathogens of coast redwood is important for the development of disease management strategies and may help improve horticultural practices in maintenance of urban stands.
机译：海岸红木（Semoia Sempervirens）是加州（加利福尼亚州）最广泛种植的景观树木之一，但由于包括长期干旱和植物病原体的因素，其自然范围之外的下降。我们调查了Botryosphaeriaceae真菌的协会与整个CA次数下降的海岸红木树。从CA的11个沿海和内陆地区收集了100多个样本。分离五十九种运动样真菌菌株，选择18种进一步研究。其和EF-LCT序列数据的系统发育分析证实了Botry Opposeria Dothidea的存在，Neofusiccum Aus-Trale，N. luteum，N.Miniterraneum和N.Parvum。致病性验证，虽然Neofusiccum物种因毒力而变化，但B. dothidea的所有毒性都更具毒性。 N. Australe引起了最大的病变，其次是N. Luteum，N.Parvum和N.Miniterraneum。在恢复的物种中，只有B. dothidea在加利福尼亚州海岸红木的病原体。这些结果证实，在加利福尼亚州海岸红木的分支下降和黑反背面有多种双子育岩物种，这与木质农业作物同意。准确诊断海岸红木的真菌病原体对于疾病管理战略的发展是重要的，并可能有助于提高城市展台维护的园艺实践。

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  • 来源
    《Plant Disease》 |2018年第10期|共8页
  • 作者

    Srdan G. Acimovic; Suzanne Rooney-Latham; Sebastian Albu; Donald M. Grosman; Joseph J. Doccola;

  • 作者单位

    Plant Pathology and Plant-Microbe Biology Section Cornell University Hudson Valley Research Laboratory Highland NY;

    Plant Pest Di-agnostics Branch California Department of Food &

    Agriculture Sacramento CA;

    Plant Pest Di-agnostics Branch California Department of Food &

    Agriculture Sacramento CA;

    Research and Development Laboratory Arborjet Inc. Woburn MA;

    Research and Development Laboratory Arborjet Inc. Woburn MA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物保护;
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