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Abstract

Tan spot, caused by Didymella tanaceti, is one of the most important foliar diseases affecting pyrethrum in Tasmania, Australia. Population dynamics, including mating-type ratios and genetic diversity of D. tanaceti, was characterized within four geographically separated fields in both late winter...

Author(s)
Pearce, T. L.; Scott, J. B.; Pilkington, S. J.; Pethybridge, S. J.; Hay, F. S.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 155-168
Abstract

Pathogen variation plays an important role in the dynamics of infectious diseases. In this study, the genetic variation of 279 Phytophthora infestans isolates was assessed using a combination of 12 microsatellite simple-sequence repeat markers. Isolates were collected from 11 different potato...

Author(s)
Chaves, S. C.; Rodríguez, M. C.; Mideros, M. F.; Lucca, F.; Ñústez, C. E.; Restrepo, S.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 145-154
Abstract

The Australian wheat stem rust (Puccinia graminis f. sp. tritici) population was shaped by the introduction of four exotic incursions into the country. It was previously hypothesized that at least two of these (races 326-1,2,3,5,6 and 194-1,2,3,5,6 first detected in 1969) had an African origin and...

Author(s)
Visser, B.; Meyer, M.; Park, R. F.; Gilligan, C. A.; Burgin, L. E.; Hort, M. C.; Hodson, D. P.; Pretorius, Z. A.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 133-144
Abstract

The widely grown hard red winter wheat cultivar Duster released in 2006 has remained highly resistant to leaf rust caused by Puccinia triticina in the southern Great Plains of the United States. In contrast, many of the winter wheat cultivars in this region are susceptible to leaf rust. The goal of ...

Author(s)
Kolmer, J. A.; Su, Z.; Bernardo, A.; Bai, G.; Chao, S.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 127-132
Abstract

Stripe rust is a major disease constraint of wheat production worldwide. Resistance to stripe rust was analyzed using 131 F6 recombinant inbred lines (RILs) derived from a cross between synthetic derived wheat line Soru#1 and wheat cultivar Naxos. The phenotype was evaluated in Mexico and Norway at ...

Author(s)
Zhang RuiQi; Singh, R. P.; Lillemo, M.; He XinYao; Randhawa, M. S.; Huerta-Espino, J.; Singh, P. K.; Li ZhiKang; Lan CaiXia
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 120-126
Abstract

Fusarium head blight (FHB) is a destructive disease of wheat that reduces yield and grain quality. High-throughput proteomic techniques have been used to identify a wide range of candidate proteins involved in host resistance. The majority of the published works on the proteomics of the wheat...

Author(s)
Liu JiaJun; Li Lei; Foroud, N. A.; Gong Xuan; Li ChangCheng; Li Tao
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 111-119
Abstract

In past efforts, input weather variables for Fusarium head blight (FHB) prediction models in the United States were identified after following some version of the window-pane algorithm, which discretizes a continuous weather time series into fixed-length windows before searching for summary...

Author(s)
Shah, D. A.; Wolf, E. D. de; Paul, P. A.; Madden, L. V.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 96-110
Abstract

Botrytis bunch rot (BBR), caused by Botrytis cinerea, results in serious losses to wine-grape production in some seasons during the preharvest period. In order to predict seasons that are at risk from BBR, datasets consisting of 25 disease, weather and vine phenology variables were aggregated from...

Author(s)
Hill, G. N.; Beresford, R. M.; Evans, K. J.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 84-95
Abstract

The hop powdery mildew fungus Podosphaera macularis persists from season to season in the Pacific Northwestern United States through infection of crown buds because only one of the mating types needed to produce the ascigerous stage is presently found in this region. Bud infection and successful...

Author(s)
Gent, D. H.; Mahaffee, W. F.; Turechek, W. W.; Ocamb, C. M.; Twomey, M. C.; Woods, J. L.; Probst, C.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 74-83
Abstract

Charcoal rot, caused by the fungus Macrophomina phaseolina, is an economically important disease of soybean (Glycine max) worldwide. Objectives of the present research were to (i) study the genetic and pathogenic diversity in a collection of M. phaseolina isolates from Argentina and Paraguay and...

Author(s)
Reznikov, S.; Chiesa, M. A.; Pardo, E. M.; Lisi, V. de; Bogado, N.; González, V.; Ledesma, F.; Morandi, E. N.; Ploper, L. D.; Castagnaro, A. P.
Publisher
American Phytopathological Society (APS Press), St. Paul, USA
Citation
Phytopathology, 2019, 109, 1, pp 63-73

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