Krishna V. Subbarao

Verticillium alfalfae is a fungus. It causes verticillium wilt in some plant species, particularly alfalfa. It produces yellow-pigmented hyphae and microsclerotia, while producing resting mycelium. It is most closely related to V. albo-atrum and V. nonalfalfae.

Verticillium zaregamsianum is a fungus often found in lettuce in Japan. It can cause verticillium wilt in some plant species. It produces yellow-pigmented hyphae and microsclerotia, while producing few chlamydospores and with sparse resting mycelium. It is most closely related to V. tricorpus.

Verticillium nonalfalfae is a soilborne fungus in the order Hypocreales. It causes verticillium wilt in some plant species, including Ailanthus altissima. The fungus produces a resting mycelium characterized by brown-pigmented hyphae. It is most closely related to V. dahliae and V. alfalfae.

Verticillium klebahnii is a fungus often pathogenically inhabiting lettuce. It causes verticillium wilt (a disease state) in some plant species. It produces yellow-pigmented hyphae and microsclerotia, while producing abundant chlamydospores and resting mycelium. It is most closely related to V. tricorpus and V. isaacii.

Verticillium isaacii is a fungus inhabiting artichoke, spinach and lettuce, without necessarily being pathogenic. It causes verticillium wilt in some plant species. It produces yellow-pigmented hyphae and microsclerotia, while producing abundant chlamydospores and resting mycelium. It is most closely related to V. tricorpus and V. klebahnii.

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