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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The purpose of this study was to characterize fungal and oomycete species associated with root diseases of  Phaseolus vulgaris ,  Vigna unguiculata ,  V. radiata  and  Vicia faba  in Oman. Root samples were collected from plants suffering from weakened growth and yellowing symptoms. Fungal species were isolated on 2.5% potato dextrose agar amended with 10 mg l −1  rifampicin and 200 mg l −1  of ampicillin and identification was based on sequences of the internal transcribed spacer region of the ribosomal RNA gene (ITS rRNA), glycerol-3-phosphate dehydrogenase (GPDH), translation elongation factor-1 alpha (TEF), beta-tubulin (TUB), calmodulin (CMD), actin (ACT). Isolations yielded 204 fungal isolates belonging to nine different genera, with most isolates belonging to  Alternaria  and  Fusarium . Molecular identification revealed that the isolates belong to 20 fungal species, the most dominant of which was  Alternaria alternata . Pathogenicity tests were conducted on each plant species. The inoculations on  P. vulgaris  revealed that  Pythium aphanidermatum  induced rotting, damping-off and wilt symptoms while  Fusarium equiseti  induced yellowing symptoms on the leaves.  Rhizoctonia solani  produced lesions and root rot on  Vigna unguiculata  while  Curvularia muehlenbeckiae  and  Curvularia caricae-papayae  produced root lesions on the roots of  V. unguiculata  and  V. radiata , respectively.  Alternaria alternata  produced brown symptoms on the tap root of  Vicia faba .  P. aphanidermatum  resulted in a significant reduction in the fresh weight, dry weight and shoot length of  Phaseolus vulgaris . The study shows that several fungal species can be found associated with the roots of beans and  Vigna unguiculata  in Oman and can result in varying disease symptoms. This is the first report of root lesions produced by  Curvularia muehlenbeckiae  on the roots of  V. unguiculata  and by  C. caricae-papayae  on  V. radiata  worldwide.

Isolation and identification of pathogenic fungi and oomycetes associated with beans and cowpea root diseases in Oman