A novel penicillium sp. causes rot in stored sugar beet roots in Idaho
Strausbaugh, C.A. and Dugan, F.M. (2017) A novel penicillium sp. causes rot in stored sugar beet roots in Idaho. Plant Disease. 101:1781-1787. 14 September 2017.
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Abstract
Penicillium vulpinum along with a number of other fungi can lead to the rot of stored sugar beet roots. However, Penicillium isolates associated with necrotic lesions on roots from a recent sugar beet storage study were determined to be different from P. vulpinum and other recognized Penicillium species. Phylogenies based on sequencing of the internal transcribed spacer (ITS)-5.8S, beta-tubulin (BenA), and RNA polymerase II second largest subunit (RPB2) DNA regions indicate that these isolates are novel, but most closely related to the following Penicillium spp. in the section Fasiculata: P. aurantiogriseum, P. camemberti, and P. freii. Macro- and micromorphological data also support designating these isolates as a new species for which we propose the name, Penicillium cellarum sp. nov. Inoculation studies with the P. cellarum isolates on roots of the commercial sugar beet cultivar B-7, led to the formation of necrotic lesions 23 to 25 mm in diameter after 86 days in storage. These lesions were similar to those observed on sugar beet roots in commercial storage piles. These data indicate that P. cellarum is a pathogen which can lead to root rot in stored sugar beet roots.
Item Type: | Article |
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NWISRL Publication Number: | 1604 |
Subjects: | Irrigated crops > Sugarbeet > Root rots Irrigated crops > Sugarbeet > Storage Irrigated crops > Sugarbeet Irrigated crops > Sugarbeet > Root rots > Fungi |
Depositing User: | Users 6 not found. |
Date Deposited: | 14 Sep 2017 17:01 |
Last Modified: | 26 Sep 2018 19:50 |
Item ID: | 1647 |
URI: | https://eprints.nwisrl.ars.usda.gov/id/eprint/1647 |