A soft rot of calla (Zantedeschiaspp.) caused byErwinia carotovorasubspeciescarotovora

Abstract

A bacterium, isolated from infected tubers of calla (Zantedeschia spp.), was confirmed as a soft rot pathogen by completion of Koch's postulates and was identified as Erwinia carotovora subsp. carotovora (Jones 1901) Bergey et al. 1923. This paper confirms the identity of E. carotovora subsp. carotovora as the cause of bacterial soft rot of this important ornamental plant in New Zealand.

Micropropagation of calla lily (Zantedeschia rehmannii)

“…However, the propagules are often contaminated with bacteria (especially with Erwinia carotovora subsp. carotovora and E. chrysanthemi) and viral organisms which are transferred to the plants (Joubert and Truter 1972, Wright 1998, Huang and Chang 2005, Snijder and van Tuyl 2002. Tissue culture propagation is the best option to rapidly obtain a large number of pathogen-free plants.…”

Pectinolytic bacteria associated with potato soft rot and blackleg in South Africa and Zimbabwe

“…carotovorum (Pcc) has a broad host range, causing soft rot disease in various crops including potato, carrot, capsicum and calla lily (Wright 1998, Toth et al 2003. Pcc can also be virulent in temperate climates causing blackleg symptoms (De Haan et al 2008).…”

Irrigation, sawdust mulch, and Enhance®biocide affects soft rot incidence, and flower and tuber production of calla

“…Soft-rotting bacteria are common in soil and can attack a wide range of crops, in particular fleshy fruits, vegetables, tubers, and stems. Bacterial soft rot results in wilting and collapse of the plant and decay of tubers (Wright 1998). Ecc can infect callas at all stages of the host plant's growth cycle from tuber planting to postharvest storage, and deterioration can be rapid if conditions occur that favour the disease.…”