Phytoplasmas colonize plants differently depending on the host’s pathogen type, properties, and specific reactions. Knowledge of the movement of phytoplasmas within the host plant and their final distribution in various organs is usually essential for understanding the plant host–phytoplasma interactions. For most phytoplasma diseases for which the colonization behavior of the causal agent(s) has been elucidated through the use of several methods, the expression of symptoms depends on the presence and titer of the invading phytoplasma(s). However, in some diseases, because of the poor correlation between phytoplasma presence and symptom severity occurring in some parts of infected plants, a long-distance effect of phytoplasma infections may be involved.
Movement of phytoplasmas and disease development in plants
Carmine Marcone
2025
Abstract
Phytoplasmas colonize plants differently depending on the host’s pathogen type, properties, and specific reactions. Knowledge of the movement of phytoplasmas within the host plant and their final distribution in various organs is usually essential for understanding the plant host–phytoplasma interactions. For most phytoplasma diseases for which the colonization behavior of the causal agent(s) has been elucidated through the use of several methods, the expression of symptoms depends on the presence and titer of the invading phytoplasma(s). However, in some diseases, because of the poor correlation between phytoplasma presence and symptom severity occurring in some parts of infected plants, a long-distance effect of phytoplasma infections may be involved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
