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You searched for: Journal name Plant disease Remove constraint Journal name: Plant disease Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019
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1. 100 Years Since Tolaas: Bacterial Blotch of Mushrooms in the 21ˢᵗ Century

Author:
Ebrahim Osdaghi; Samuel J. Martins; Laura Ramos-Sepulveda; Fabrício Rocha Vieira; John A. Pecchia; David Meigs Beyer; Terrence H. Bell; Yinong Yang; Kevin L. Hockett; Carolee T. Bull
Source:
Plant disease 2019 v.103 no.11 pp. 2714-2732
ISSN:
0191-2917
Subject:
Agaricus bisporus; Pseudomonas tolaasii; bacteriophages; biological control agents; economic impact; epidemiology; farms; microbiome; mushroom diseases; mushrooms; pathogens; relative humidity; temperature
Abstract:
... Among the biotic constraints of common mushroom (Agaricus bisporus) production, bacterial blotch is considered the most important mushroom disease in terms of global prevalence and economic impact. Etiology and management of bacterial blotch has been a major concern since its original description in 1915. Although Pseudomonas tolaasii is thought to be the main causal agent, various Pseudomonas spe ...
DOI:
10.1094/PDIS-03-19-0589-FE

2. Activity of Demethylation Inhibitor Fungicide Metconazole on Chinese Fusarium graminearum Species Complex and Its Application in Carbendazim-Resistance Management of Fusarium Head Blight in Wheat

Author:
Yabing Duan; Xian Tao; Huahua Zhao; Xuemei Xiao; Meixia Li; Jianxin Wang; Mingguo Zhou
Source:
Plant disease 2019 v.103 no.5 pp. 929-937
ISSN:
0191-2917
Subject:
Fusarium graminearum; Fusarium head blight; alleles; benzimidazole; carbendazim; demethylation; deoxynivalenol; field experimentation; fungicides; grain yield; median effective concentration; mycelium; resistance management; wheat; China
Abstract:
... Fusarium graminearum species complex (FGSC), causing Fusarium head blight (FHB) of wheat, has species-specific geographical distributions in wheat-growing regions. In recent years, benzimidazole resistance of FHB pathogens has been largely widespread in China. Although the demethylation inhibitor fungicide metconazole has been used for FHB control in some countries, no information about metconazol ...
DOI:
10.1094/PDIS-09-18-1592-RE

3. African Nightshade and African Spinach Decrease Root-Knot Nematode and Potato Cyst Nematode Soil Infestation in Kenya

Author:
Oliver Chitambo; Solveig Haukeland; Komi K. M. Fiaboe; Florian M. W. Grundler
Source:
Plant disease 2019 v.103 no.7 pp. 1621-1630
ISSN:
0191-2917
Subject:
Amaranthus cruentus; Amaranthus dubius; Globodera; Heterodera; Meloidogyne; Solanum lycopersicum; Solanum scabrum; Solanum tuberosum; Solanum villosum; cropping systems; cyst nematodes; females; field experimentation; income; mixed infection; nutrition; potatoes; rhizosphere; root galls; root-knot nematodes; roots; soil; spinach; surveys; wilting; Kenya
Abstract:
... Plant-parasitic nematodes, particularly root-knot nematodes (RKN: Meloidogyne spp.) and cyst nematodes (CN: Globodera and Heterodera spp.) cause severe yield reduction in most cultivated crops and are of high economic importance. African nightshade (Solanum spp.) and African spinach (Amaranthus spp.) are important African indigenous vegetables (AIV) and are rich sources of nutrition and income. Ho ...
DOI:
10.1094/PDIS-07-18-1193-RE

4. Age-Dependent Resistance to Rhizoctonia solani in Sugar Beet

Author:
Yangxi Liu; Aiming Qi; Mohamed F. R. Khan
Source:
Plant disease 2019 v.103 no.9 pp. 2322-2329
ISSN:
0191-2917
Subject:
Beta vulgaris; Rhizoctonia; Thanatephorus cucumeris; barley; beets; cultivars; disease severity; disease susceptibility; environmental factors; fungicides; greenhouse experimentation; growing season; heat sums; pathogens; pesticide application; plant age; planting; root rot; roots; seed industry; seed treatment; seedlings; sugar beet; Minnesota; North Dakota
Abstract:
... Rhizoctonia crown and root rot of sugar beet (Beta vulgaris L.), caused by Rhizoctonia solani, continues to be one of the important concerns for the beet industry in Minnesota and North Dakota. Use of resistant cultivars is an important strategy in the management of R. solani in combination with seed treatment and timely fungicide application during the growing season. The objective of this greenh ...
DOI:
10.1094/PDIS-11-18-2001-RE

5. Alternaria alternata Causing Leaf and Fruit Spot of Olive in Pakistan

Author:
T. Alam; M. F. H. Munis
Source:
Plant disease 2019 v.103 no.4 pp. 762
ISSN:
0191-2917
Subject:
Alternaria alternata; Olea europaea; Sphagnum; agar; cetyltrimethylammonium bromide; color; conidia; conidiophores; cultivars; disease incidence; food safety; fruits; fungi; genes; glucose; growth chambers; internal transcribed spacers; leaves; mycelium; mycotoxins; olive oil; olives; orchards; oxytetracycline; pathogenicity; pathogens; plastic bags; polymerase chain reaction; relative humidity; ribosomal DNA; sodium hypochlorite; tubulin; Pakistan
Abstract:
... Olive (Olea europaea) belongs to family Oleaceae, and its plantation is increasing in Pakistan owing to high demand of olive oil. Several cultivated olive varieties have been invaded by different pathogens. Olive fruit infection may lead to the accumulation of deleterious mycotoxin in its oil and pose a significant threat to food safety and security (Visconti et al. 1986). Leaf and fruit spot was ...
DOI:
10.1094/PDIS-08-18-1448-PDN

6. Alternaria brassicicola Causing Leaf Spot Disease on Broccoli in China

Author:
Waheed Akram; Guihua Li; Aqeel Ahmad; Tehmina Anjum; Basharat Ali; Juxian Guo; Wenlong Luo; Tingquan Wu; Dasen Xie; Qing Wang
Source:
Plant disease 2019 v.103 no.11 pp. 2960
ISSN:
0191-2917
Subject:
Alternaria brassicicola; Brassica oleracea var. italica; DNA; DNA primers; Isatis tinctoria; Orychophragmus violaceus; agricultural land; broccoli; color; conidia; conidiophores; culture media; disease control; disease incidence; fungi; genes; greenhouses; humidity; hyphae; internal transcribed spacers; leaf spot; leaves; mycelium; pathogenicity; pathogens; peptide elongation factors; photoperiod; rain; sodium hypochlorite; China
Abstract:
... Broccoli (Brassica oleracea var. italica) is a vegetable widely cultivated in China. During March 2018, a severe outbreak of leaf spot disease was observed in broccoli plants in agricultural fields around Guangzhou city (23°07′55″N, 113°15′58″E) in Guangdong province, China. The disease incidence reached 90% in severely infected fields. Infected plants showed irregular dark-brown to black necrotic ...
DOI:
10.1094/PDIS-05-19-1013-PDN

7. Analysis of Cytology and Expression of Resistance Genes in Maize Infected with Sporisorium reilianum

Author:
Fengkun Qi; Lin Zhang; Xiaojie Dong; Hong Di; Jiayue Zhang; Minhao Yao; Ling Dong; Xing Zeng; Xianjun Liu; Zhenhua Wang; Yu Zhou
Source:
Plant disease 2019 v.103 no.8 pp. 2100-2107
ISSN:
0191-2917
Subject:
Sphacelotheca reiliana; Zea mays; autophagy; corn; discoloration; electron microscopy; fluorescence microscopy; hyphae; mesocotyls; necrosis; phloem; plant pathogenic fungi; resistance genes; seedlings; smut diseases; soaking; vascular bundles
Abstract:
... Head smut, caused by the fungus Sporisorium reilianum, is a devastating global disease of maize (Zea mays). In the present study, maize seedlings were artificially inoculated with compatible mating-type strains of S. reilianum by needle inoculation of mesocotyls (NIM) or by soaking inoculation of radicles (SIR). After NIM or SIR, Huangzao4 mesocotyls exhibited severe damage with brownish discolora ...
DOI:
10.1094/PDIS-09-18-1687-RE

8. Antifungal Activity and Action Mechanism of the Natural Product Cinnamic Acid Against Sclerotinia sclerotiorum

Author:
Yong Wang; Yang Sun; Jiali Wang; Mingxia Zhou; Miaomaio Wang; Juntao Feng
Source:
Plant disease 2019 v.103 no.5 pp. 944-950
ISSN:
0191-2917
Subject:
Sclerotinia sclerotiorum; antifungal properties; carbendazim; chemical residues; cinnamic acid; cross resistance; financial economics; fungicide resistance; fungicides; gene expression; genes; mechanism of action; median effective concentration; membrane permeability; mycelium; oxalic acid; plant pathogenic fungi; sclerotia; stem rot
Abstract:
... Sclerotinia stem rot caused by Sclerotinia sclerotiorum (Lib.) de Bary spreads worldwide and causes serious economic losses. Considering the development of fungicide resistance and chemical residues, it is urgently necessary to explore alternative fungicides. In this study, the activity of the natural product cinnamic acid was assessed. The EC₅₀ values for cinnamic acid inhibition of mycelial grow ...
DOI:
10.1094/PDIS-08-18-1355-RE

9. Applications of Next-Generation Sequencing for Large-Scale Pathogen Diagnoses in Soybean

Author:
Gustavo A. Díaz-Cruz; Charlotte M. Smith; Kiana F. Wiebe; Sachi M. Villanueva; Adam R. Klonowski; Bryan J. Cassone
Source:
Plant disease 2019 v.103 no.6 pp. 1075-1083
ISSN:
0191-2917
Subject:
Bean yellow mosaic virus; Cercospora sojina; Glycine max; Peronospora; Pseudomonas syringae pv. savastanoi; Pseudomonas syringae pv. tabaci; Septoria; acreage; arthropod pests; bacteria; crops; developmental stages; diagnostic techniques; fauna; flora; foliar diseases; fungi; high-throughput nucleotide sequencing; leaves; nucleotide sequences; pathovars; plant pathogens; soybeans; surveys; viruses; Manitoba
Abstract:
... Soybean (Glycine max) has become an important crop in Manitoba, Canada, with a 10-fold increase in dedicated acreage over the past decade. Given the rapid increase in production, scarce information about foliar diseases present in the province has been recorded. In order to describe the foliar pathogens affecting this legume, we harnessed next-generation sequencing (NGS) to carry out a comprehensi ...
DOI:
10.1094/PDIS-05-18-0905-RE

10. Assessing Fitness Costs and Phenotypic Instability of Fentin Hydroxide and Tebuconazole Resistance in Venturia effusa

Author:
Jeffrey R. Standish; Timothy B. Brenneman; Marin T. Brewer; Katherine L. Stevenson
Source:
Plant disease 2019 v.103 no.9 pp. 2271-2276
ISSN:
0191-2917
Subject:
conidia; fentin hydroxide; fungicide resistance; germination; hydrogen peroxide; monitoring; osmotic stress; oxidative stress; pecan scab; phenotype; tebuconazole; viability
Abstract:
... Sensitivity monitoring of Venturia effusa, cause of pecan scab, has revealed insensitivity to fentin hydroxide and tebuconazole, but recent research indicates that the insensitivity to fentin hydroxide is not stable. A study was undertaken to determine if a fitness cost may be responsible for this instability. In this study, experiments were conducted to evaluate fitness components and phenotypic ...
DOI:
10.1094/PDIS-12-18-2292-RE

11. Assessment of Factors Associated with Molecular Quantification of Stubby Root Nematode Paratrichodorus allius from Field Soil DNA

Author:
Danqiong Huang; Guiping Yan; Neil C. Gudmestad; Jonathan Whitworth
Source:
Plant disease 2019 v.103 no.12 pp. 3265-3273
ISSN:
0191-2917
Subject:
Paratrichodorus; air; autoclaving; body length; bovine serum albumin; grinding; internal transcribed spacers; loamy sand soils; microscopy; plant parasitic nematodes; plasmids; potatoes; quantitative polymerase chain reaction; ribosomal DNA; Idaho; North Dakota
Abstract:
... Factors relating to SYBR Green-based quantitative real-time PCR (qPCR) quantification of stubby root nematode Paratrichodorus allius using soil DNA were evaluated in this study. Soils used were loamy sand from potato fields in North Dakota and Idaho. Results showed that the largest nematode individuals (body length >720 µm) produced significant lower Cq values than the smallest individuals (<359 µ ...
DOI:
10.1094/PDIS-12-18-2240-RE

12. Atoxigenic Aspergillus flavus Isolates Endemic to Almond, Fig, and Pistachio Orchards in California with Potential to Reduce Aflatoxin Contamination in these Crops

Author:
Alejandro Ortega-Beltran; Juan Moral; Adeline Picot; Ryan D. Puckett; Peter J. Cotty; Themis J. Michailides
Source:
Plant disease 2019 v.103 no.5 pp. 905-912
ISSN:
0191-2917
Subject:
Aspergillus flavus; Aspergillus parasiticus; Pistacia vera; aflatoxins; almonds; biological control; climate change; crops; drought; farmers; figs; genotype; germplasm; industry; orchards; pistachios; toxigenic strains; trees; California
Abstract:
... In California, aflatoxin contamination of almond, fig, and pistachio has become a serious problem in recent years due to long periods of drought and probably other climatic changes. The atoxigenic biocontrol product Aspergillus flavus AF36 has been registered for use to limit aflatoxin contamination of pistachio since 2012 and for use in almond and fig since 2017. New biocontrol technologies emplo ...
DOI:
10.1094/PDIS-08-18-1333-RE

13. Bacterial Blight on Millet Caused by Burkholderia cepacia in Brazil

Author:
C. S. Conceição; A. D. B. Baia; P. H. R. Silva; A. M. F. Silva; A. J. G. Moraes; E. B. Souza; J. E. A. Beserra Junior; M. P. Melo; M. A. S. Gama
Source:
Plant disease 2019 v.103 no.6 pp. 1408
ISSN:
0191-2917
Subject:
Burkholderia cepacia; Pennisetum glaucum; bacteria; blight; chlorosis; clones; cultivars; flour; foliar spraying; genes; host range; leaves; millets; pathogenicity; phylogeny; plant pathogens; ribosomal RNA; statistical analysis; tetracycline; Brazil
Abstract:
... Millet (Pennisetum glaucum) is a cereal crop of high importance in some regions of the world, and in Brazil the flour is mainly used for the preparation of cakes, biscuits, and porridge. In March 2015, we observed symptoms of yellowing, chlorosis, and blight on millet leaves of cultivar ADR-300 (about 30% incidence) in a plantation located in the municipality of Baixa Grande do Ribeiro (07°51′32″S ...
DOI:
10.1094/PDIS-10-18-1894-PDN

14. Bacterial Wilt of Sacha Inchi (Plukenetia volubilis) Caused by Ralstonia pseudosolanacearum Phylotype I in Southern China

Author:
G. F. Wang; H. Li; Y. Zhou; L. Y. Yang; Z. J. Ding; J. S. Huang; B. Z. Pan
Source:
Plant disease 2019 v.103 no.2 pp. 364
ISSN:
0191-2917
Subject:
Capsicum annuum; Plukenetia volubilis; Ralstonia; Solanum lycopersicum var. lycopersicum; Solanum melongena; bacteria; bacterial wilt; cherry tomatoes; disease control; disease outbreaks; eggplants; electron microscopy; farmers; flagellum; genes; human health; inoculation methods; leaves; mature plants; necrosis; oils; oligodeoxyribonucleotides; omega-3 fatty acids; pathogenicity; perennials; photosynthesis; phylogeny; phylotype; plantlets; polygalacturonase; polymerase chain reaction; proteins; ribosomal RNA; roots; seedlings; seeds; sequence analysis; soil; stems; tetrazolium; wilting; Andes region; China; Peru
Abstract:
... Sacha inchi (Plukenetia volubilis L.) is a little-known yet important perennial plant native to the Andes Mountains of Peru. It is a plant producing large, edible seeds rich in omega-3 fatty acids and proteins useful for promoting human health. The economic importance of sacha inchi has increased in recent years because its seeds produce significantly higher oil yields than those of other plants ( ...
DOI:
10.1094/PDIS-04-18-0615-PDN

15. Baseline Sensitivity of Penicillium spp. to Difenoconazole

Author:
Wayne M. Jurick; Otilia Macarisin; Verneta L. Gaskins; Wojciech J. Janisiewicz; Kari A. Peter; Kerik D. Cox
Source:
Plant disease 2019 v.103 no.2 pp. 331-337
ISSN:
0191-2917
Subject:
Penicillium expansum; active ingredients; difenoconazole; fludioxonil; fruit quality; median effective concentration; molds (fungi); mycelium; mycotoxins; pesticide application; phenotype; pome fruits; pyrimethanil; thiabendazole; United States
Abstract:
... Penicillium spp. cause blue mold of stored pome fruit. These fungi reduce fruit quality and produce mycotoxins that are regulated for processed fruit products. Control of blue mold is achieved by fungicide application, and in 2015 Academy (active ingredients fludioxonil and difenoconazole) was released for use on pome fruit to manage postharvest blue mold. Baseline sensitivity for fludioxonil but ...
DOI:
10.1094/PDIS-05-18-0860-RE

16. Biological, Pathological, and Molecular Characteristics of a New Potyvirus, Dendrobium Chlorotic Mosaic Virus, Infecting Dendrobium Orchid

Author:
Chih-Hung Huang; Chia-Hsing Tai; Ruey-Song Lin; Chung-Jan Chang; Fuh-Jyh Jan
Source:
Plant disease 2019 v.103 no.7 pp. 1605-1612
ISSN:
0191-2917
Subject:
Dendrobium; Potyvirus; Western blotting; amino acid sequences; antiserum; coat proteins; enzyme-linked immunosorbent assay; genes; monoclonal antibodies; nucleotide sequences; nucleotides; pathogenicity; polyclonal antibodies; polyproteins; proteolysis; sequence analysis; viruses; Taiwan
Abstract:
... Dendrobium smillieae is one of the popular orchids in Taiwan. This report describes a new potyvirus tentatively named Dendrobium chlorotic mosaic virus (DeCMV) causing chlorotic and mosaic symptoms in D. smillieae. Enzyme-linked immunosorbent assay (ELISA) tests using six antisera against orchid-infecting viruses revealed that only a monoclonal antibody against the potyvirus group reacted positive ...
DOI:
10.1094/PDIS-10-18-1839-RE

17. Bipolaris oryzae Causing Brown Leaf Spot on Echinochloa crus-galli in Southern Brazil

Author:
T. E. Kaspary; C. Bellé; C. A. G. Rigon; L. Cutti; G. Casarotto; M. Gallon; A. Merotto Junior
Source:
Plant disease 2019 v.103 no.5 pp. 1038
ISSN:
0191-2917
Subject:
Bipolaris oryzae; Brachypodium distachyon; DNA; Echinochloa crus-galli; Oryza sativa; Triticum aestivum; alternative hosts; conidia; conidiophores; crop production; cultivars; ethanol; fungi; genes; glycerol-3-phosphate dehydrogenase; grain crops; herbicide resistance; host-pathogen relationships; leaf spot; leaves; mycelium; peptide elongation factors; rice; sequence analysis; weeds; Brazil
Abstract:
... Barnyardgrass (Echinochloa crus-galli [L.] P. Beauv.), a member of the family Poaceae, is an important weed in rice production with widespread herbicide resistance (Heap 2018). In addition to yield loss from competition, barnyardgrass may be an alternative host of pests and diseases of rice. In January 2018, symptoms of leaf spots were observed on E. crus-galli in Porto Alegre, Rio Grande do Sul s ...
DOI:
10.1094/PDIS-11-18-2057-PDN

18. Boscalid Resistance in Blumeriella jaapii: Distribution, Effect on Field Efficacy, and Molecular Characterization

Author:
Cory A. Outwater; Tyre J. Proffer; Nikki L. Rothwell; Jingyu Peng; George W. Sundin
Source:
Plant disease 2019 v.103 no.6 pp. 1112-1118
ISSN:
0191-2917
Subject:
Blumeriella jaapii; Prunus cerasus; amino acids; boscalid; defoliation; enzyme inhibitors; field experimentation; fruit quality; fruit set; fungicide resistance; genes; leaf spot; minimum inhibitory concentration; monitoring; mutation; mycelium; orchards; plant pathogenic fungi; pyraclostrobin; quinones; ripening; succinate dehydrogenase (quinone); tree mortality; trees; winter; Michigan; Ohio
Abstract:
... Cherry leaf spot (CLS), caused by the fungus Blumeriella jaapii, is a major disease of tart cherry (Prunus cerasus L.) trees, leading to early defoliation that results in uneven ripening and poor fruit quality in the current season, reduced fruit set in the following season, and increased potential for winter injury and tree death. Pristine (BASF Corporation, Research Triangle Park, NC), a commonl ...
DOI:
10.1094/PDIS-09-18-1555-RE

19. Botrytis cinerea Causing Gray Mold on Bottle Gourd (Lagenaria siceraria) in Korea

Author:
Md. Aktaruzzaman; Tania Afroz; Young-Gyu Lee; Byung-Sup Kim
Source:
Plant disease 2019 v.103 no.12 pp. 3285
ISSN:
0191-2917
Subject:
Botrytis cinerea; DNA primers; DNA-directed RNA polymerase; Lagenaria siceraria; botanical gardens; conidia; conidiophores; culture media; disease incidence; fruits; fungi; genes; glyceraldehyde-3-phosphate dehydrogenase; gourds; gray mold; growth chambers; heat shock proteins; internal transcribed spacers; medicine; monoecy; mycelium; pathogenicity; pathogens; relative humidity; ribosomal DNA; sclerotia; sequence analysis; sodium hypochlorite; teleomorphs; temperature; China; South Korea
Abstract:
... Bottle gourd (Lagenaria siceraria [Mol.] Standl., Cucurbitaceae) is an annual monoecious, vigorous climber species that is commonly cultivated for several uses such as food, medicine, musical instruments, and decorative purposes (Decker-Walters et al. 2004). In August 2016, symptoms resembling gray mold on bottle gourd fruits were found in the botanical garden of Highland Agriculture Research Inst ...
DOI:
10.1094/PDIS-06-19-1227-PDN

20. Botrytis pseudocinerea, a New Pathogen Causing Gray Mold on Brassica napus in China

Author:
L. H. Xue; Y. Liu; L. Zhang; X. Q. Huang; X. Q. Zhou; X. X. Yang; W. X. Wu
Source:
Plant disease 2019 v.103 no.2 pp. 367
ISSN:
0191-2917
Subject:
Botrytis allii; Botrytis cinerea; Botrytis fabae; Brassica napus; DNA primers; conidia; culture media; disease incidence; droplets; fungi; genes; gray mold; greenhouses; internal transcribed spacers; leaves; mycelium; oilseed crops; paper; pathogenicity; pathogens; phylogeny; planting; plastic film; polymerase chain reaction; rapeseed; relative humidity; ribosomal DNA; sclerotia; China; Germany
Abstract:
... Rapeseed (Brassica napus L.) is widely cultivated as the most important edible oilseed crop in China (Huang et al. 2016). In March 2017, symptoms resembling gray mold on rapeseed leaves were observed in Pengzhou city (30.96925°N, 104.10223°E), Sichuan Province, China, with approximately 4 to 13% disease incidence (percent symptomatic leaves per 10 plants, five duplicates) in a 15-ha rapeseed plant ...
DOI:
10.1094/PDIS-04-18-0688-PDN