Enterobacter cloacae

Enterobacter • plant pathogenic bacteria • plant diseases • pests-diseases-weeds

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symptoms of Enterobacter cloacae infections on chili pepper seedlings in Mexico - A) initial water-soaked areas on leaves, B) brown spots and chlorosis, C) chlorosis and partial necrosis, D) defoliation after 60 days (click on image to enlarge it)
Author(s): Tanahiri García-González et al.
Source: The Plant Pathology Journal (2018), 34, p. 2

Enterobacter cloacae causing rot in onion bulbs (click on image to enlarge it)
Author(s): Howard F. Schwartz, Colorado State University
Source: IPM Images

Enterobacter cloacae (Jordan 1890) Hormaeche and Edwards 1960

This species is a gram-negative, facultative anaerobic, rod-shaped bacterium that is widely distributed and is found in the soil and other substrates. For example, it is common in the gut flora of many humans or animals and some strains can be human pathogens. Others are pathogenic to plants, causing diseases like seedling defoliation on green pepper (see illustrations on right) or bulb decay on onions in the field and in storage.

In addition, some strains have been studied as beneficial antagonists against plant diseases (see Enterobacter cloacae as antagonist).