Sclerotinia


Also found in: Dictionary, Thesaurus, Wikipedia.

Sclerotinia

 

a genus of sac fungi of the order Helotiales of the group Discomycetes. The fungi pass through sclerotial and ascomycetous stages of development. In the first stage they form dormant structures called sclerotia; in the second stage they form a mycelium or fruiting bodies called apothecia, which are in the shape of a saucer or goblet. Asci and asco-spores develop in the apothecia. Most species reproduce by means of conidia and, depending on their manner of sporebearing, belong to one of two genera of imperfect fungi—Monilia or Botrytis. The most harmful species are S. sclerotiorum (S. libertiana), S. fuckeliana, S. cinerea, and S. frucligena, which damage many cultivated and wild plants, including sunflower, cabbage, carrot, potato, bean, pea, and various fruit trees.

References in periodicals archive ?
Influence of four herbicides on carpogenic germination and apothecium development of Sclerotinia sclerotiorum.
Because of the cold conditions there has been little germination of sclerotinia to date.
When the infected buds drop to the ground, Sclerotinia fungus spores lie dormant until the following year when, in response to moisture and the presence of new buds, they infect the plant all over again.
Wet, unsettled weather continuing through to the petal-fall stage of the oilseed rape crop this year has dramatically increased the risk of a sclerotinia outbreak.
Fluazinam is a nitroanilines fungicide with excellent control effect on such bacteria as Alternaria, Botrytis, Phytophthora, Plasmopara, Sclerotinia, etc.
In addition to protecting strawberries, KENJA is also proven to control Sclerotinia spp.
Effects of some agronomy factors on phenology stages, vegetative characters and incidence of Sclerotinia stem rot in two genotypes of canola in Gonbad area.
More recently, cultivated sunflowers worldwide have benefitted from their wild North American relatives in the form of resistance to rust, Sclerotinia, downy mildew, and other diseases and pests.
Diseases such as anthracnose, angular leaf spot, bean rust, bean scab, sclerotinia rot and common bean mosaic virus are some of important bean diseases that have received attention, but little has been done to control Fusarium yellows caused by Fusarium oxysporum Schl.
Six fungal species, Candida albicans, Penicil-lium italicum, Helminthosporium maydis, Sclerotinia sclerotiorum, Gibberalla sanbinetti and Rhizoctonia solani were examined.