Other plant pathogens

back/up to plant diseases - plant pathogens

corn stunt spiroplasma in phloem cells (thick section, 75,000X) (click on image to enlarge it)
Source: Wikimedia Commons

other plant diseases

The following groups of plant pathogens and diseases are included here:

Diseases of unknown etiology Diseases with unidentified disease agents or causes. These might include disorders which are not caused by pathogenic organisms.

Phytoplasmas Bacteria-like organisms without cell walls which cannot survive outside living plants or insects and cannot be cultured.

Spiroplasmas Bacteria-like, motile organisms without cell walls and with a helical shape. Some species can be cultured in artificial media.

Viroids Small, circular and single stranded RNA molecules which can cause plant diseases.