English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

SUMMARY: An auxotroph of Sclerotinia sclerotiomm, A1-pyr, was isolated after mutagenesis of ascospores with ultraviolet light. Addition of cytosine and to a lesser extent uracil, but not thymidine, to minimal medium permitted growth of this auxotroph. Protoplasts of Al-pyr failed to regenerate on Czapek agar medium without cytosine supplementation (20 mg 1-1); on cytosine-supplemented medium 01% of protoplasts successfully regenerated. The mutant was avirulent on four of seven susceptible hosts unless an exogenous cytosine source was applied at the inoculation site. The requirement for external cytosine makes A1-pyr a potential candidate for use in biological weed control. While isolates of this fungus obtained from nature attack numerous beneficial crop and native plants, A1-pyr would be limited to the area of cytosine application, thus reducing the threat to beneficial plants.

A Pyrimidine Auxotroph of Sclerotinia sclerotiomm for Use in Biological Weed Control