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First Report of Alternaria Leaf Spot Caused by Alternaria tenuissima on Sugar Beet (Beta vulgaris) in Minnesota, USA

The American Phytopathological Society. 2019; 
M. F. R. Khan, M. E. Haque, M. Bloomquist, M. Z. R. Bhuiyan, R. Brueggeman, S. Zhong, R. Sharma Poudel, T. Gross, P. Hakk, Y. Leng, and Y. Liu
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Gene Synthesis Conidia dimensions were 28 to 54 × 4.5 to 6 µm, and beaks when present were 2 to 4 µm (Kou et al. 2014). Based on the morphological characters, the fungus was tentatively identified as Alternaria species (Simmons 2007; Woudenberg et al. 2015). Fungal genomic DNA was extracted from two representative isolates using a Qiagen kit followed by PCR amplification with internal transcribed spacer (ITS) ITS 1/ITS 4 primers. The amplified PCR products were cleaned and sent for Sanger sequencing by GenScript (Piscataway, NJ). Isolates 1422F (GenBank accession MK611645) and 1424F (MK611649) had 98 and 100% sequence identity with Alternaria tenuissima (GenBank accessions MF373440 and MH374277), respectively (Ziedan et al. 2018). Get A Quote

Abstract

Symptom of maize ear rot caused by Fusarium sporotrichioides(B. B. Wang et al.). Photo credit: C. X. Duan. Systemic symptoms of alfalfa mosaic virus (AMV) isolate CaM on leaves of potato (X. Z. Nie et al.). Photo credit: X. Z. Nie.

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