Other plant pathogens

plant diseases • pests-diseases-weeds

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

Other plant diseases

Pathogens and diseases not included among the bacteria, viruses or fungi and fungal-like organisms are listed here:

Diseases of unknown etiology Diseases with unidentified disease agents or causes. These might include disorders which are not caused by pathogenic organisms. Currently 2 species listed.

Parasitic algae Parasitic algae (red rusts). Currently 2 species listed.

Phytoplasmas Bacteria-like organisms without cell walls which cannot survive outside living plants or insects and cannot be cultured. Currently 36 species listed.

Spiroplasmas Bacteria-like, motile organisms without cell walls and with a helical shape. Some species can be cultured in artificial media. Currently 2 species listed.

Trypanosomatidae Trypanosomatidae - Phytomonas (flagellated protozoa causing plant diseases). Currently 3 species listed.

Viroids Small, circular and single stranded RNA molecules which can cause plant diseases. Currently 28 species listed.