Urocystis brassicae

Urocystis brassicae is a gall smut[1] and a plant pathogen that stunts the infected plants[2]. It is known to create root galls on Indian Mustard (Brassica campestris) and other Brassica species.

Urocystis brassicae
Scientific classification
Kingdom:
Fungi
Phylum:
Basidiomycota
Class:
Ustilaginomycetes
Subclass:
Ustilaginomycetidae
Order:
Urocystidales
Family:
Urocystidiaceae
Genus:
Urocystis
Species:
U. brassicae
Binomial name
Urocystis brassicae
Mundk., (1938)


Physical Characteristics

Gall Characteristics

The wart-like galls of U. brassicae grow on the roots of plants[3][4][5]. When young, the galls are white in color[2]. As they age, they become a grayish-black colored gall with a 2-5 cm diameter[2].

Spore Characteristics

U. brassicae has two types of spores[4]. One is fertile and the other is sterile[4]. Fertile spores are a deep brown color with dimensions of approximately 20 by 16µ[4]. These fertile spores are surrounded by sterile spores that are elongated and a brighter brown than the fertile spores[4]. These sterile spores are approximately 9.9 by 6.1µ[4].

Distribution of U. brassicae

U. brassicae is commonly found in India (Bihar) [6]and China[1].

References
  1. Sheng-yi, Liu. "Advance in research and control of diseases in oilseed rape in China" (PDF). Oil Crops Research Institute, CAAS. 2.
  2. RANGASWAMI, G.; MAHADEVAN, A. (1998-01-01). DISEASES OF CROP PLANTS IN INDIA. PHI Learning Pvt. Ltd. ISBN 978-81-203-1247-0.
  3. Misra, J. K.; Tewari, Jalpa P.; Deshmukh, Sunil Kumar; Vágvölgyi, Csaba (2014-10-27). Fungi From Different Substrates. CRC Press. ISBN 978-1-4822-0960-0.
  4. Mundkur, Bhalchendra B. Host range and identity of the smut causing root galls in the genus Brassica. OCLC 78399137.
  5. Sharma, P. D. (2005). Fungi and Allied Organisms. Alpha Science Int'l Ltd. ISBN 978-1-84265-277-0.
  6. Saharan, G. S.; Mehta, Dr Naresh; Sangwan, M. S. (2005). Diseases of Oilseed Crops. Indus Publishing. ISBN 978-81-7387-176-4.


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