Plant lactobacteriosis

Plant lactobacteriosis is a bacterial condition caused by specific strains of the Lactobacillaceae family. While these bacteria are often beneficial in food processing, under specific environmental conditions, they act as opportunistic pathogens that invade plant tissues and cause significant economic losses in agriculture.

The causative agent belongs to the class of gram-positive bacteria that trigger a localized soft rot. The infection type is fundamentally a bacterial decay, where the pathogen colonizes the intercellular space, secretes enzymes, and initiates fermentation, eventually breaking down the structural integrity of the plant host.

A wide range of succulent crops is affected by this disease, including various vegetables, root crops, and fruits. The pathogen is particularly dangerous for crops stored in poor conditions, where the high concentration of sugars and high humidity levels provide an ideal substrate for rapid bacterial proliferation.

Symptoms typically manifest as softening of the plant tissue, appearance of water-soaked spots, and a distinctive sour odor. As the bacteria metabolize the sugars, the tissue becomes necrotic and mushy, spreading rapidly to adjacent healthy tissues if the plant's defense mechanisms are compromised.

The primary control measures include strict sanitation practices, such as removing infected debris and maintaining proper aeration in storage facilities. Proactive prevention involves minimizing mechanical injuries to crops during harvest and avoiding excessive irrigation that leads to stagnant water, which favors bacterial spreading.