de Werra Patrice, Debonneville Christophe, Kellenberger Isabelle, Dupuis Brice
Plants and Plant Products, Varieties and Production Techniques, Agroscope, 1260 Nyon, Switzerland.
Plant Protection, Virology, Bacteriology and Phytoplasmology, Agroscope, 1260 Nyon, Switzerland.
Microorganisms. 2021 Oct 31;9(11):2270. doi: 10.3390/microorganisms9112270.
and species are the causal agents of blackleg and soft rot diseases in potatoes. The main pathogenic species identified so far on potatoes are , , , , , and . Ten years ago, the most prevalent Soft Rot Pectobacteriaceae in Europe were the species, and , with some variations among countries. Since then, a drastic increase in the abundance of has been observed in most European countries. This shift is difficult to explain without comparing the pathogenicity of all and species. The pathogenicity of all the above-mentioned bacterial species was assessed in field trials and in vitro tuber slice trials in Switzerland. Two isolates of each species were inoculated by soaking tubers of cv. Desiree in a suspension of 10 CFU/mL, before planting in the field. For all trials, the species were the most virulent ones, but long-term strain surveys performed in Switzerland indicate that is currently the most frequent species detected. Our results show that the pathogenicity of the species is not the main factor explaining the high prevalence of and in the Swiss potato fields.
[细菌名称]和[细菌名称]是马铃薯黑胫病和软腐病的致病因子。目前在马铃薯上鉴定出的主要致病物种有[细菌名称]、[细菌名称]、[细菌名称]、[细菌名称]、[细菌名称]和[细菌名称]。十年前，欧洲最常见的软腐果胶杆菌科是[细菌名称]物种、[细菌名称]和[细菌名称]，各国之间存在一些差异。从那时起，在大多数欧洲国家都观察到[细菌名称]的丰度急剧增加。如果不比较所有[细菌名称]和[细菌名称]物种的致病性，这种转变很难解释。在瑞士的田间试验和体外块茎切片试验中评估了上述所有细菌物种的致病性。在田间种植前，将每个物种的两个分离株通过将Desiree品种的块茎浸泡在10 CFU/mL的悬浮液中进行接种。对于所有试验，[细菌名称]物种是最具毒性的，但在瑞士进行的长期菌株调查表明，[细菌名称]是目前检测到的最常见物种。我们的结果表明，物种的致病性不是解释[细菌名称]和[细菌名称]在瑞士马铃薯田高流行率的主要因素。
