Verticillium nigrescens
seed reduction of soybean
Gibellulopsis nigrescens
Asia: China, Japan; North America: USA
GA
2025-09-05
fungus
Brazil
Soybean and cotton are main hosts, but even on these hosts it is a weak pathogen.
VERTNI
Verticillium nigrescens (now often called Gibellulopsis nigrescens) is a mostly saprophytic soil-borne fungus and a weak or opportunistic plant pathogen. It survives in soil and plant debris mainly as chlamydospores and can infect roots when germination is triggered by root exudates. Transmission occurs through soil and possibly contaminated plant material, but there is no confirmed evidence of seed transmission.
9 Known Hosts
Apium graveolens
celery
No
VERTNI-2, VERTNI-4, CABI CPC, RICH ISTA, VERTNI-6
No references found indicating seed is a pathway. Reported as a weak pathogen on this host
2025-09-05 16:57:17
Farr, D.F. and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2016, http://nt.ars-grin.gov/fungaldatabases/
Pegg, G.F. and Brady, B.L. 2002. Verticliium Wilts. CABI Publishing,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Beta vulgaris
table beet, swiss chard
No
VERTNI-4, CABI CPC, RICH ISTA, VERTNI-6
No evidence that seed is a pathway for this fungus. Reported as saprophytic on this host.
2025-09-05 16:59:39
Pegg, G.F. and Brady, B.L. 2002. Verticliium Wilts. CABI Publishing,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Brassica oleracea vars.
broccoli, cabbage, cauliflower, brussel sprouts
No
VERTNI-2, CABI CPC, RICH ISTA, VERTNI-6
No references found indicating seed is a pathway. Reported as a weak pathogen on this host.
2025-09-05 17:00:08
Farr, D.F. and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2016, http://nt.ars-grin.gov/fungaldatabases/
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Glycine max
soybean
No
VERTNI-2, VERTNI-4, CABI CPC, RICH ISTA, VERTNI-6, VERTNI-7
No references found indicating seed is a pathway. Not considered an important pathogen for this crop. Often saprophytic or weakly pathogenic at most.
2025-09-05 17:00:53
Farr, D.F. and Rossman, A.Y. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. 2016, http://nt.ars-grin.gov/fungaldatabases/
Pegg, G.F. and Brady, B.L. 2002. Verticliium Wilts. CABI Publishing,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Korolev, N., & Katan, T. (1999). Vegetative compatibility grouping in Verticillium nigrescens and V. tricorpus. Mycological Research, 103(1), 65-76.
Gossypium spp.
cotton
No
No references found indicating seed is a pathway. Not considered an important pathogen for this crop. Often saprophytic or weakly pathogenic at most.
Medicago sativa
alfalfa
No
VERTNI-4, CABI CPC, RICH ISTA, VERTNI-6
No references found indicating seed is a pathway.. Reported as a weak pathogen on this host
2025-09-05 17:01:32
Pegg, G.F. and Brady, B.L. 2002. Verticliium Wilts. CABI Publishing,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Phaseolus vulgaris
common bean
No
VERTNI-3, VERTNI-4, CABI CPC, RICH ISTA, VERTNI-6
No references found indicating seed is a pathway. Reported as a weak pathogen on this host
2025-09-05 17:02:03
Villarroel-Zeballos, Feng, Iglesias, du Toit, Correll. 2012. Screening for Resistance to Verticillium Wilt in Spinach and Isolation of Verticillium dahliae from Seed of Spinach Accessions. HORTSCIENCE 47:1297–1303
Pegg, G.F. and Brady, B.L. 2002. Verticliium Wilts. CABI Publishing,
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Solanum lycopersicum
tomato
No
VERTNI-3, CABI CPC, RICH ISTA, VERTNI-6
No references found indicating seed is a pathway. Reported as a weak pathogen on this host
2025-09-05 17:02:34
Villarroel-Zeballos, Feng, Iglesias, du Toit, Correll. 2012. Screening for Resistance to Verticillium Wilt in Spinach and Isolation of Verticillium dahliae from Seed of Spinach Accessions. HORTSCIENCE 47:1297–1303
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
Spinacia oleracea
spinach
No
VERTNI-3, CABI CPC, RICH ISTA, VERTNI-6
Found on seed of spinach accessions, but not proven to be pathogenic. No references found indicating seed is a pathway in seed production.
Yes
Freezing blotter
Freezing blotter method used to isolate this fungus from spinach seed in research. This method has not been standardized or validated.
VERTNI-3
2025-09-05 17:03:09
Villarroel-Zeballos, Feng, Iglesias, du Toit, Correll. 2012. Screening for Resistance to Verticillium Wilt in Spinach and Isolation of Verticillium dahliae from Seed of Spinach Accessions. HORTSCIENCE 47:1297–1303
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
Vesper, S. J., Turner, J. T., & Phillips, D. V. (1983). Incidence of Verticillium nigrescens in soybeans. Phytopathology, 73(9), 1338-1340.
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