First report of black rot caused by Xanthomonas nasturtii on watercress in Spain and Portugal
First report of black rot caused by Xanthomonas nasturtii on watercress in Spain and Portugal
复制标题
西班牙和葡萄牙首次报告由黄单胞菌引起的豆瓣菜黑腐病
DOI：
10.1002/ndr2.12134
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发表时间：
2022
影响因子：
--
通讯作者：
Lascelles D
中科院分区：
文献类型：
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作者：
Lascelles D
旱金莲黄单胞菌（Xanthomonasnasturtii）首先被鉴定为在美国佛罗里达生长的植物上的豆瓣菜（Nasturtiumofficinale）的黑腐病的原因（Vicente等人，2017年）。早些时候在夏威夷也报道了类似的症状（McHugh & Constantinides，2004），2003年在葡萄牙从野生豆瓣菜中分离出一种未鉴定的黄单胞菌属（Xanthomonas sp.）（Cruz等人，2017年）。自2017年以来，西班牙南部的西洋菜作物偶尔会在包虫周围出现小黄叶病变、叶斑、V形叶病变、枯萎、扭曲和衰老（图1）。在11月至2月的温和潮湿时期，症状更频繁，产量减少高达60%，并导致某些作物被拒绝（Lascelles，2019）。2021年，在葡萄牙生产并在英国销售的豆瓣菜上发现了症状。
Xanthomonas nasturtii was first identified as the cause of black rot of watercress (Nasturtium officinale) on plants grown in Florida, USA (Vicente et al., 2017). Similar symptoms had been reported earlier in Hawaii (McHugh & Constantinides, 2004) and an unidentified Xanthomonas sp. was isolated in Portugal in 2003 from wild watercress (Cruz et al., 2017). Since 2017, watercress crops in southern Spain have occasionally exhibited small yellow leaf lesions around the hydathodes, leaf spots, V-shaped leaf lesions, wilt, distortion and senescence (Fig. 1). Symptoms were more frequent during mild and humid periods from November to February, reducing yields by up to 60% and leading to rejection of some crops (Lascelles, 2019). In 2021, symptoms were seen on watercress produced in Portugal and sold in the UK.