Michele Wiseman

Michele Wiseman
Oregon State University | OSU · Department of Botany and Plant Pathology

MSc Plant Pathology

About

37
Publications
3,895
Reads
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132
Citations
Citations since 2016
36 Research Items
132 Citations
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2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Introduction
Michele Wiseman currently works at the Department of Botany and Plant Pathology, Oregon State University. Michele does research in Plant Protection, Agricultural Plant Science and Molecular Biology.
Additional affiliations
August 2013 - December 2013
Washington State University
Position
  • Graduate Teaching Assistant
Description
  • Pl P 429/529 General Plant Pathology ~40 Students

Publications

Publications (37)
Article
Cultivation of common hop (Humulus lupulus L.) has increased dramatically during the past decade, with the primary growth occurring in the Pacific Northwest of the United States. A major limitation to hop production is hop powdery mildew [caused by Podosphaera macularis (Wallr.) Braun & Takam]. To date, a comprehensive evaluation of wild hop germpl...
Article
Downy mildew resistance (DMR) will facilitate the success of hop production in humid, temperate climates. However, DMR in hop has a narrow genetic base, and its genetic architecture is poorly understood. Here in this study, we characterized the genetic control of DMR using a bi‐parental mapping population derived from a cross between a female, the...
Article
Full-text available
The hop cultivar Cascade possesses partial resistance to powdery mildew (Podosphaera macularis) that can be overcome by recently emerged, virulent isolates of the fungus. Given that hop is a long-lived perennial and that brewers still demand Cascade, there is a need to better understand factors that influence the development of powdery mildew on th...
Article
In Oregon, hemp (Cannabis sativa) production has increased substantially after cultivation was legalized in the 2014 and 2018 Farm Bills. Typically, hemp species are affected by powdery mildew caused by Golovinomyces species. This paper reports on hop powdery mildew caused by Podosphaera macularis, found colonizing hemp in natural conditions. The o...
Article
Brewers consistently look for new and unique hop (Humulus lupulus L.) cultivars that possess excellent flavor profiles and are cost effective to produce and utilize. Proprietary aroma cultivars have in some cases met this need but are costly to produce due to susceptibility to major plant diseases and primary adaptation for high desert climates suc...
Article
Powdery mildew is one of the most destructive diseases of hop. Host resistance is a most efficient means of managing the disease, but resistance may not be durable. The cultivar Strata was developed by Oregon State University, and the patent application stated the plant was resistant to powdery mildew based on initial greenhouse screening and 8 yea...
Article
Full-text available
Oregon is the second largest producer of hemp in the United States with 25,900 ha of hemp licensed to growers in 2019, a nearly six-fold increase over the previous year (Perkowski 2019, Capital Press). Industrial hemp has a wide range of uses including textiles to nutritional supplements; in Oregon, hemp has become one of the most economically prom...
Article
Hop powdery mildew (caused by Podosphaera macularis) was confirmed in the Pacific Northwest in 1996. Before 2012, the most common race of P. macularis was able to infect plants that possessed powdery mildew resistance based on the R-genes Rb, R3, and R5. After 2012, two additional races of P. macularis were discovered that can overcome the resistan...
Article
We sequenced the transcriptome of isolates of P. macularis collected throughout the western U.S., eastern U.S., and Europe to quantify genetic diversity of pathogen populations and elucidate the possible origins of pathogen populations in the western U.S. Discriminant analysis of principal components grouped isolates within 3 to 5 geographic popula...
Article
Full-text available
Four fungi isolated from trunks and branches of European hazelnut (Corylus avellana L.) from commercial orchards in the Willamette Valley, Oregon were characterized and pathogenicity was tested on potted hazelnut trees. The acreage of hazelnuts in Oregon has expanded greatly in recent years in response to the availability of Eastern filbert blight...
Article
Kernel mold on hazelnuts is defined by the United States Department of Agriculture, U.S.A., as any visible fungal growth either on the outside or inside of the kernel. Only one yeast and one filamentous fungus have been associated with kernel mold of hazelnut in Oregon. In this report, fungi were isolated from kernels with mold and identified using...
Article
Full-text available
Rathayibacter toxicus is a species of Gram-positive, corynetoxin-producing bacteria that causes annual ryegrass toxicity, a disease often fatal to grazing animals. A phylogenomic approach was employed to model the evolution of R. toxicus to explain the low genetic diversity observed among isolates collected during a 30-year period of sampling in th...
Article
Full-text available
Understanding how bacteria affect plant health is crucial for developing sustainable crop production systems. We coupled ecological sampling and genome sequencing to characterize the population genetic history of Rhodococcus and the distribution patterns of virulence plasmids in isolates from nurseries. Analysis of chromosome sequences shows that p...
Data
Lengths of N. benthamiana seedling roots 7 days after inoculation with isolate D188 +/- L5::attR.
Data
Lengths of N. benthamiana seedling roots 7 days after growth in BA or inoculation with isolates D188 or PBTS2.
Data
Internode lengths of pistachio UCB1 210 days after inoculations with Rhodococcus isolates.
Data
Lengths of N. benthamianaroot hairs 25 days after inoculation with wild type Rhodococcusisolates.
Data
Number of stems of peas 14 days after inoculation with isolates D188, PBTS1, or PBTS2.
Data
Lengths of N. benthamiana seedling roots 7 days after inoculation with wild type Rhodococcusisolates.
Data
Lengths of N. benthamiana seedling roots 7 days after inoculation with Rhodococcusisolates +/- pFiD188Δatt.
Data
Length of stems of peas 14 days after inoculation with isolates D188, PBTS1, or PBTS2.
Data
Numbers of N. benthamiana seedling root hairs 25 days after inoculation with wild type Rhodococcusisolates.
Data
Heights of pistachio UCB1 210 days after inoculations with Rhodococcus isolates.
Data
Metadata and other supporting information. (A)Characteristics of Rhodococcus isolates sequenced in this study. (B) Average nucleotide identity of Rhodococcus. (C) Single nucleotide polymorphisms (SNPs) for Clade I isolates of Rhodococcus. (D) Single nucleotide polymorphisms (SNPs) for Clade II isolates of Rhodococcus. (E) List of 123 genes present...
Article
In July and August of 2013, the Oregon State University Plant Clinic received 2-year-old ‘Draper’ and ‘Duke’ blueberry plants (Vaccinium corymbosum L.) from Yakima County, WA, with cambial discoloration and cane dieback in the absence of girdling cankers. Surface-disinfected diseased tissue was aseptically transferred to streptomycin potato dextros...
Article
In late autumn of 2015, Oregon grown ‘Peach Sorbet’ blueberry (Vaccinium corymbosum L.) leaves were submitted to the Oregon State University Plant Clinic with concern of leaf rust. Shortly after, additional symptomatic material from cultivars Jelly Bean and Blue Crop were collected from a different location in Oregon. Adaxial symptoms initially app...
Article
Two fungi were recently described as pathogens of pome fruit in the U.S. Pacific Northwest: Lambertella corni-maris on apple, and Phacidium lacerum Fr. (syn. Ceuthospora pinastri (Fr.) Höhn.) on apple and d'Anjou pear. Here we document pathogenicity of L. corni-maris to d'Anjou pear, Malus ‘Profusion’ crabapple, and sweetbriar rose, and pathogenici...
Article
Full-text available
During surveys for postharvest diseases of apple and pear, an unknown postharvest fruit rot was observed inWashington State. The disease appeared to originate from infection of the stem and calyx tissue of the fruit or wounds on the fruit. An unknown pycnidial fungus was consistently isolated from the decayed fruit. Isolates from apple and pear wer...

Questions

Questions (2)
Question
Hi all,
We have a few broken pipettes (four rainin, one gilson) that need repair and calibration. Our normal pipette guy skipped over these pipettes the last two years despite me telling him about them numerous times. Anyhow, now I'm fed up and would like to look for a new company and/or individual. Anybody have any recommendations? I'd prefer to mail-in. Thank you!
Question
Our lab acquired a biorad icycler from a researcher who was retiring. Unfortunately, the machine fails its self-test with a "edge balance fault" error. I've contacted biorad, but they no longer service these machines. I hate to throw out such a nice machine, so I thought I'd try to fix it myself (if it's possible). Anybody encounter this error? If so, were you able to fix it? Any advice? 
Thank you!

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