Transfer of Pectobacterium carotovorum subsp. carotovorum strains isolated from potatoes grown at high altitudes to Pectobacterium peruviense sp. nov.

Morphologically Different Pectobacterium brasiliense Bacteriophages PP99 and PP101: Deacetylation of O-Polysaccharide by the Tail Spike Protein of Phage PP99 Accompanies the Infection

“…They were negative for acid production from D-arabitol, dulicitol, and sorbitol, and were unable to utilize malonate and citrate. Cells are catalase positive, produce acid from lactose, rhamnose, and trehalose, resistant to 6% NaCl and grow at both 28 and 37 • C. Strain F152 induces a hypersensitive reaction in tobacco leaves and causes severe black leg symptoms on green plants and soft rot symptoms on potato tuber disks compared to the characterized strains of P. polaris, P. aquaticum, P. versatile, and P. atrosepticum in a temperature range from 20 to 28 • C. The same properties were observed for other Pbr strains previously isolated in Russia, F126 and F157 (Voronina et al, 2019b). However, the genome sequences of Pbr strains deposited to the NCBI GenBank demonstrate pronounced diversity, forming several branches of the phylogenomic clade (Zhang et al, 2016;Li et al, 2018).…”

“…This group of strains shared some physiological properties with P. atrosepticum (Pat), and was able to grow in a broader range of environmental temperatures. Since then, similar strains were identified as causative agents of black leg and soft rot of potatoes in many countries, including Russia (Malko et al, 2019;Voronina et al, 2019b). Following the taxonomic reassessment of phytopathogenic pectobacteria, Pbr was rated as a subspecies of the P. carotovorum (Nabhan et al, 2012), and was recently elevated to the species rank .…”

Pectobacterium and Dickeya species detected in vegetables in Northern Ireland

“…Previously known as Erwinia species (Winslow et al 1920), the taxonomic reclassifications based on genetic differences within this genus led to the recognition of the genus Pectobacterium (Hauben et al 1998) which was later separated into Pectobacterium and Dickeya (Samson et al 2005). Pectobacterium currently includes ten formally described species and three subspecies (Gardan et al 2003;Nabhan et al 2013;Khayi et al 2016) with several recently described species including Pectobacterium polaris (Dees et al 2017b), Pectobacterium peruviense (Waleron et al 2017), Pectobacterium punjabense (Sarfraz et al 2018), Pectobacterium zantedeschiae (Waleron et al in press) and Candidatus Pectobacterium maceratum (Shirshikov et al 2018) being proposed. The genus Dickeya currently includes eight species and two subspecies (Samson et al 2005;Brady et al 2012;Parkinson et al 2014;Tian et al 2016).…”

A novel subspecies-specific primer targeting the gyrase B gene for the detection of Pectobacterium carotovorum subsp. brasiliense

“…The level of diversity in SRE species so vary greatly that it is attributed to the unique taxon in the group (Seo et al 2002), with a range of different phenotypic, biochemical, host range, and genetic characteristic (Toth et al 2003). The genus Pectobacterium comprises the following species: Pectobacterium carotovorum, Pectobacterium atrosepticum, Pectobacterium betavasculorum, Pectobacterium cacticida, Pectobacterium aroidearum (Nabhan et al 2013), Pectobacterium wasabiae, Pectobacterium parmentieri (Khayi et al 2016), Pectobacterium polaris (Dees et al 2017), Pectobacterium peruviense (Waleron et al 2018), and Pectobacterium punjabense (Sarfraz et al 2018). In addition, Pectobacterium zantedeschiae (Waleron et al 2019a), Pectobacterium aquaticum (Pedron et al 2019), Pectobacterium fontis (Oulghazi et al 2019), Pectobacterium polonicum (Waleron et al 2019b), and the new genomospecies, Candidatus Pectobacterium maceratum (Shirshikov et al 2018;Waleron et al 2019c) are recently added to the genus.…”