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- Author:
- Andres Salcedo; Mary Hausbeck; Stacey Pigg; Lina M. Quesada-Ocampo
- Source:
- Plant health progress 2020 v.21 no.3 pp. 166-172
- ISSN:
- 1535-1025
- Subject:
- signs and symptoms (plants), etc ; Cucumis sativus; Pseudoperonospora cubensis; crops; cucumbers; disease control; disease resistance; downy mildew; early diagnosis; foliar diseases; fungicides; geographical distribution; host range; pathogen identification; taxonomy; Show all 15 Subjects
- Abstract:
- ... Cucurbit downy mildew caused by the oomycete Pseudoperonospora cubensis is the most devastating foliar disease on cultivated cucurbitaceous crops. Failure of host resistance in cucumber and previously effective fungicides has occurred in the last few years in the United States and Europe, making accurate and early diagnosis critical for timely disease management. The objective of this diagnostic g ...
- DOI:
- 10.1094/PHP-12-19-0095-DG
- https://doi.org/10.1094/PHP-12-19-0095-DG
- Author:
- Waliullah Sumyya; Ling Kai Shu; Cieniewicz Elizabeth J.; Oliver Jonathan E.; Ji Pingsheng; Ali Emran
- Source:
- International journal of molecular sciences 2020 v.21 no.5 pp. -
- ISSN:
- 1422-0067
- Subject:
- signs and symptoms (plants), etc ; Cucurbit leaf crumple virus; Cucurbitaceae; DNA primers; detection limit; disease detection; foliar diseases; gel electrophoresis; loop-mediated isothermal amplification; rapid methods; viral diseases of plants; Show all 11 Subjects
- Abstract:
- ... A loop-mediated isothermal amplification (LAMP) assay was developed for simple, rapid and efficient detection of Cucurbit leaf crumple virus (CuLCrV), one of the most important begomovirus that infects cucurbits worldwide. A set of six specific primers targeting a 240 nt sequence region in the DNA A of CuLCrV were designed and synthesized for detection of CuLCrV from infected leaf tissues by real- ...
- Handle:
- 10113/6937443
- DOI:
- 10.3390/ijms21051756
- https://doi.org/10.3390/ijms21051756
- Author:
- Jayme Garcia Arnal Barbedo
- Source:
- European journal of plant pathology 2017 v.147 no.2 pp. 349-364
- ISSN:
- 0929-1873
- Subject:
- signs and symptoms (plants), etc ; databases; digital images; image analysis; leaves; Show all 5 Subjects
- Abstract:
- ... The segmentation of symptoms during image analysis of diseased plant leaves is an essential process for detection and classification of diseases. However, there are challenges involved in the task, many of them related to the variability of image and host/symptom characteristics and conditions. As a result of those challenges, the methods proposed in the literature so far focus on a specific probl ...
- DOI:
- 10.1007/s10658-016-1007-6
- https://doi.org/10.1007/s10658-016-1007-6
- Author:
- M. Spetik; A. Berraf-Tebbal; E. Penazova; J. Pecenka; M. Maier; A. Eichmeier
- Source:
- Plant disease 2019 v.103 no.7 pp. 1790
- ISSN:
- 0191-2917
- Subject:
- signs and symptoms (plants), etc ; Buxus sempervirens; DNA primers; Nectriaceae; fungal diseases of plants; new geographic records; ornamental plants; pathogenicity; plant pathogenic fungi; ribosomal DNA; Czech Republic; Show all 11 Subjects
- Abstract:
- ... Buxus sempervirens L., commonly known as boxwood, is an ornamental plant frequently grown as hedges worldwide. Pseudonectria buxi (DC.) Seifert, Gräfenhan & Schroers (syn. Volutella buxi [DC.] Berk. and Pseudonectria rousseliana [Mont.] Seaver) is a fungal pathogen of boxwood that causes a disease commonly known as Volutella blight. Volutella blight is also caused by P. foliicola (Rivera et al. 20 ...
- DOI:
- 10.1094/PDIS-02-19-0258-PDN
- https://doi.org/10.1094/PDIS-02-19-0258-PDN
5. First Report of Leaf Necrosis Caused by Alternaria alternata on Ceratostigma willmottianum in Italy
- Author:
- A. Garibaldi; D. Bertetti; S. Matić; I. Luongo; M. L. Gullino
- Source:
- Plant disease 2019 v.103 no.6 pp. 1412
- ISSN:
- 0191-2917
- Subject:
- signs and symptoms (plants), etc ; Alternaria alternata; Ceratostigma; conidia; fungal diseases of plants; genes; host-pathogen relationships; leaves; necrosis; new geographic records; pathogen identification; plant pathogenic fungi; ribosomal DNA; Italy; Show all 14 Subjects
- Abstract:
- ... Ceratostigma willmottianum Stapf, a member of Plumbaginaceae family, is a perennial shrub with a long summer flowering period, commonly grown in public and private gardens. During the autumn of 2018, leaf necrotic areas were observed primarily on lower leaves of 12-month-old plants of C. willmottianum growing either in pots or in the ground, in a private garden located in Biella province (northern ...
- DOI:
- 10.1094/PDIS-02-19-0408-PDN
- https://doi.org/10.1094/PDIS-02-19-0408-PDN
- Author:
- Bernhard Schuldt; Allan Buras; Matthias Arend; Yann Vitasse; Carl Beierkuhnlein; Alexander Damm; Mana Gharun; Thorsten E.E. Grams; Markus Hauck; Peter Hajek; Henrik Hartmann; Erika Hiltbrunner; Günter Hoch; Meisha Holloway-Phillips; Christian Körner; Elena Larysch; Torben Lübbe; Daniel B. Nelson; Anja Rammig; Andreas Rigling; Laura Rose; Nadine K. Ruehr; Katja Schumann; Frank Weiser; Christiane Werner; Thomas Wohlgemuth; Christian S. Zang; Ansgar Kahmen
- Source:
- Basic and applied ecology 2020 v.45 pp. 86-103
- ISSN:
- 1439-1791
- Subject:
- signs and symptoms (plants), etc ; air temperature; climate change; drought; environmental impact; forest ecosystems; forest trees; growing season; heat; plant stress; plant-water relations; remote sensing; summer; temperate forests; tree mortality; water stress; xylem; Austria; Central European region; Germany; Switzerland; Show all 21 Subjects
- Abstract:
- ... In 2018, Central Europe experienced one of the most severe and long-lasting summer drought and heat wave ever recorded. Before 2018, the 2003 millennial drought was often invoked as the example of a “hotter drought”, and was classified as the most severe event in Europe for the last 500 years. First insights now confirm that the 2018 drought event was climatically more extreme and had a greater im ...
- DOI:
- 10.1016/j.baae.2020.04.003
- https://doi.org/10.1016/j.baae.2020.04.003
- Author:
- Hye-Kyoung Ju; Ik-Hyun Kim; Wen-Xing Hu; Boram Kim; Go-Woon Choi; Jungkyu Kim; Yong Pyo Lim; Leslie L. Domier; John Hammond; Hyoun-Sub Lim
- Source:
- Archives of virology 2019 v.164 no.6 pp. 1553-1565
- ISSN:
- 0304-8608
- Subject:
- signs and symptoms (plants), etc ; Nicotiana benthamiana; RNA-directed RNA polymerase; Youcai mosaic virus; agroinfiltration; amino acid sequences; amino acids; clones; coat proteins; complementary DNA; genes; messenger RNA; non-specific serine/threonine protein kinase; phosphorylation; post-translational modification; promoter regions; Show all 16 Subjects
- Abstract:
- ... Two isolates of Youcai mosaic virus (YoMV) were obtained, and their full-length genomic sequences were determined. Full-length infectious cDNA clones of each isolate were generated in which the viral sequence was under the control of dual T7 and 35S promoters for both in vitro transcript production and agro-infiltration. Comparison of the predicted amino acid sequences of the encoded proteins reve ...
- DOI:
- 10.1007/s00705-019-04222-z
- https://doi.org/10.1007/s00705-019-04222-z
- Author:
- Maria Kamińska
- Source:
- Acta agrobotanica v.26 no.1 pp. 103-113
- ISSN:
- 2300-357X
- Subject:
- signs and symptoms (plants), etc ; apple proliferation disease; apples; trees; Show all 4 Subjects
- Abstract:
- ... Proliferation disease development was observed on apple trees one to five years old. The course of the disease was found to be longer and more acute in young trees than in ones about a dozen years old. Apple trees with symptoms of proliferation disease were 27% shorter than healthy ones, had smaller increases (by 52%), thinner trunks (by 35%) and smaller crowns (by 42%). ...
- DOI:
- 10.5586/aa.1973.008
- https://doi.org/10.5586/aa.1973.008
- Author:
- A. C. Z. Machado; O. F. Dorigo; R. M. D. G Carneiro; J. V. De AraÚJo Filho
- Source:
- Helminthologia 2016 v.53 no.2 pp. 207-210
- ISSN:
- 1336-9083
- Subject:
- signs and symptoms (plants), etc ; Meloidogyne; beans; esterases; internal transcribed spacers; knots; parasitism; phenotype; Brazil; Show all 9 Subjects
- Abstract:
- ... Common bean diseased plants with symptoms of decline and root knots were collected in two growing areas in the municipality of Araucária, Paraná State (Brazil). Morphological (perineal patterns), biochemical (esterase phenotypes) and molecular (ITS1 sequences) studies allowed us to identify the infecting nematode as Meloidogyne luci. To our knowledge, this is the first formal record of M. luci par ...
- DOI:
- 10.1515/helmin-2016-0014
- https://doi.org/10.1515/helmin-2016-0014
- Author:
- K. M. Alam; M. M. Alam; M. Islam; R. Momotaz; M. Arifunnahar; M. R. Humauan; D. Sarkar; S. A. Das; S. P. Banu
- Source:
- Plant disease 2019 v.103 no.5 pp. 1042
- ISSN:
- 0191-2917
- Subject:
- signs and symptoms (plants), etc ; Nalanthamala psidii; Psidium guajava; fungal diseases of plants; guavas; host-pathogen relationships; new geographic records; nucleotide sequences; plant pathogenic fungi; ribosomal DNA; vascular wilt; Bangladesh; Show all 12 Subjects
- Abstract:
- ... Guava (Psidium guajava L.) is a major fruit crop in Bangladesh that has significant demand in the local market. Wilt disease is a serious threat for guava cultivation and has inflicted severe losses in production. Fusarium oxysporum f. sp. psidii was reported as a causal organism in Bangladesh (Hussain et al. 2012; Meah and Mamun 1991). In this study, Nalanthamala psidii was identified as a new ca ...
- DOI:
- 10.1094/PDIS-08-18-1328-PDN
- https://doi.org/10.1094/PDIS-08-18-1328-PDN
11. Symptoms and molecular characterization of apple dimple fruit viroid isolates from apples in Japan
- Author:
- Hiroshi Kasai; Tsutae Ito; Teruo Sano
- Source:
- Journal of general plant pathology 2017 v.83 no.4 pp. 268-272
- ISSN:
- 1345-2630
- Subject:
- signs and symptoms (plants), etc ; Apple dimple fruit viroid; Apple scar skin viroid; apples; cultivars; Japan; Show all 6 Subjects
- Abstract:
- ... Apple dimple fruit viroid was detected from an apple tree (‘Jonagold’) bearing apples with mild dapple apple symptom. The isolates in Japan were distinct from those in apples in Italy and China and in fig in Italy. Graft-inoculation experiments showed that the symptoms were variable depending on the cultivar, and the symptom on ‘Starking Delicious’ was virtually similar to those reported in Italy. ...
- DOI:
- 10.1007/s10327-017-0718-7
- https://doi.org/10.1007/s10327-017-0718-7
- Author:
- J. Han; X.-L. Yao; F. Qu; R. M. Kaufman; M. L. Lewis Ivey
- Source:
- Plant disease 2019 v.103 no.7 pp. 1802
- ISSN:
- 0191-2917
- Subject:
- signs and symptoms (plants), etc ; Hop stunt viroid; circular RNA; complementary DNA; disease incidence; genome; growth retardation; new geographic records; nucleotide sequences; pathogen identification; plant diseases and disorders; plant viruses; Ohio; Show all 13 Subjects
- Abstract:
- ... Demand for craft brews in the United States has led to an increase in hop production in the Midwest and Northeast. Hop stunt viroid (HSVd) belongs to the genus Hostuviroid in the Pospiviroidae family and has a wide host range including hop, citrus, grape, and several other woody and herbaceous crops (Eastwell and Sano 2009). In the summer of 2017, hop plants (cv. Cascade) exhibiting symptoms of ho ...
- DOI:
- 10.1094/PDIS-02-19-0402-PDN
- https://doi.org/10.1094/PDIS-02-19-0402-PDN
- Author:
- Jiang Jr-Hau; Tam Si-Loi; Toda Takeshi; Chen Lung-Chung
- Source:
- Plant disease 2016 v.100 no.1 pp. 85-91
- ISSN:
- 0191-2917
- Subject:
- signs and symptoms (plants), etc ; Orchidaceae; Rhizoctonia; Thanatephorus cucumeris; cucumbers; damping off; disease severity; fungi; hypocotyls; leaves; mycorrhizae; phylogeny; radishes; virulence; Show all 14 Subjects
- Abstract:
- ... Inoculation of hypovirulent Rhizoctonia spp. has been recognized as an effective strategy for protecting plants against damping-off caused by pathogenic Rhizoctonia spp. In this study, endomycorrhizal Rhizoctonia spp. isolated from fungal pelotons in orchid plants were used for controlling Rhizoctonia damping-off of Chinese mustard. According to phylogenetic analysis and anastomosis group (AG) det ...
- DOI:
- 10.1094/PDIS-06-14-0597-RE
- https://doi.org/10.1094/PDIS-06-14-0597-RE
- Author:
- S. Nekoduka; T. Sano
- Source:
- Journal of general plant pathology 2018 v.84 no.4 pp. 279-283
- ISSN:
- 1345-2630
- Subject:
- signs and symptoms (plants), etc ; plant viruses; plant diseases and disorders; buds; winter; developmental stages; vegetative propagation; enzyme-linked immunosorbent assay; viruses; Gentiana; roots; Impatiens necrotic spot tospovirus; leaves; greenhouses; Show all 14 Subjects
- Abstract:
- ... Impatiens necrotic spot virus (INSV) causes serious damage to gentian (Gentiana spp.). Symptom development, in planta distribution, and transmission of INSV were studied after mechanical inoculation of gentian plants and propagation of shoot cuttings from infected stock plants. When young gentian plants at the 2nd-leaf stage were inoculated with INSV, plants developed systemic symptoms that were r ...
- DOI:
- 10.1007/s10327-018-0785-4
- https://doi.org/10.1007/s10327-018-0785-4
- Author:
- Zhiyou Du; Aizhong Chen; Wenhu Chen; Jack H. Westwood; David C. Baulcombe; John P. Carr
- Source:
- Plant physiology 2014 v.164 no.3 pp. 1378-1388
- ISSN:
- 0032-0889
- Subject:
- signs and symptoms (plants), etc ; Cucumber mosaic virus; epidemiology; genetic vectors; microRNA; strains; Show all 6 Subjects
- Abstract:
- ... A vector based on a mild strain of Cucumber mosaic virus carrying a microRNA decoy sequence uncovered the relevance of microRNA159 to disease symptoms induced by a severe Cucumber mosaic virus strain . ...
- DOI:
- 10.1104/pp.113.232090
- PubMed:
- 24492335
- PubMed Central:
- PMC3938627
- https://doi.org/10.1104/pp.113.232090
- Author:
- Carl Strausbaugh; Ann Fenwick
- Source:
- Plant disease management reports 2019 v.13 no.CF051 pp. -
- ISSN:
- 2330-3123
- Subject:
- signs and symptoms (plants), etc ; Agricultural Research Service; Beet curly top virus; Beta vulgaris subsp. vulgaris; Circulifer tenellus; arid lands; breeding programs; cultivars; disease severity; disease susceptibility; foliar diseases; genetic lines; germplasm releases; germplasm screening; insect vectors; plant disease resistance; plant germplasm; sugar beet; Show all 18 Subjects
- Abstract:
- ... Curly top caused by Beet curly top virus (BCTV) is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. Host resistance is the primary defense against this problem, but resistance in commercial cultivars is only low to intermediate. In order to identify novel sources of curly top resistance, 30 sugar beet lines produced by the USDA-ARS Ft. Collins s ...
- Handle:
- 10113/6542259
- Author:
- Zhuo Qiu Qiu; Ai Su Mo; Qiong He; Hai Yan Wu; Xun Bo Zhou
- Source:
- Journal of general plant pathology 2016 v.82 no.4 pp. 224-227
- ISSN:
- 1345-2630
- Subject:
- signs and symptoms (plants), etc ; Pratylenchus neglectus; corn; host plants; nutrient deficiencies; plant diseases and disorders; root lesion nematodes; root systems; roots; temperate zones; China; Show all 11 Subjects
- Abstract:
- ... Root-lesion nematodes (Pratylenchus spp.), the most common parasitic nematodes of plant roots, cause root lesions on many taxa of host plants in temperate regions around the world. In this study to isolate and identify plant parasitic nematodes in maize in Shandong Province, China, four fields with yellowish, stunted plants with symptoms like nutrient deficiencies were sampled in the suburb of Tai ...
- DOI:
- 10.1007/s10327-016-0660-0
- https://doi.org/10.1007/s10327-016-0660-0
- Author:
- Yusuke Shikanai; Mutsumi Yamagami; Shuji Shigenobu; Katsushi Yamaguchi; Takehiro Kamiya; Toru Fujiwara
- Source:
- Soil science and plant nutrition 2015 v.61 no.6 pp. 951-956
- ISSN:
- 1747-0765
- Subject:
- signs and symptoms (plants), etc ; Arabidopsis thaliana; alleles; allelism; calcium; chromosome mapping; loci; metabolism; mutants; mutation; phenotype; sugars; transfer DNA; Show all 13 Subjects
- Abstract:
- ... Calcium (Ca) deficiency symptoms in plants often occur in agriculture; however, little is known about the mechanisms for adaptation to low-Ca conditions. To understand the mechanisms, we screened for Arabidopsis thaliana (L.) Heynh mutants sensitive to low Ca. Here, we describe one of the mutants, lcs1-1 , isolated from the screen. The relative shoot growth of the mutant was reduced under the low- ...
- DOI:
- 10.1080/00380768.2015.1086277
- https://doi.org/10.1080/00380768.2015.1086277
- Author:
- Marianne S. Luna-Rivero; Cecilia Hernández-Zepeda; Hernán Villanueva-Alonzo; Yereni Minero-García; Salvador E. Castell-González; Oscar A. Moreno-Valenzuela
- Source:
- Molecular genetics and genomics 2016 v.291 no.2 pp. 819-830
- ISSN:
- 1617-4615
- Subject:
- signs and symptoms (plants), etc ; Capsicum annuum; Cucumber mosaic virus; DNA; DNA viruses; defense mechanisms; gene expression; genes; oxidative stress; pathogens; pepper; salicylic acid; stress tolerance; Show all 13 Subjects
- Abstract:
- ... The type-h thioredoxins (TRXs) play a fundamental role in oxidative stress tolerance and defense responses against pathogens. In pepper plants, type-h TRXs participate in the defense mechanism against Cucumber mosaic virus. The goal of this study was to analyze the role of the CaTRXh1-cicy gene in pepper plants during compatible interaction with a DNA virus, the Euphorbia mosaic virus-Yucatan Peni ...
- DOI:
- 10.1007/s00438-015-1148-x
- https://doi.org/10.1007/s00438-015-1148-x
- Author:
- K. V. Xavier; A. N. KC; Z. Deng; W. Castle; N. Peres; W. Lovett; G. E. Vallad
- Source:
- Acta horticulturae 2019 no.1254 pp. 263-268
- ISSN:
- 0567-7572
- Subject:
- signs and symptoms (plants), etc ; Alternaria; Colletotrichum acutatum; Corynespora; Diaporthales; Glomerella cingulata; Lasiodiplodia theobromae; Neofusicoccum parvum; Nigrospora; Punica granatum; ampicillin; buds; chlorine; crop production; culture media; databases; disease control; essential genes; flowers; fruit diseases; fruit growing; fruits; internal transcribed spacers; leaves; pathogenicity; peptide elongation factors; phylogeny; plant pathogenic fungi; pomegranates; ribosomal DNA; rifampicin; sequence analysis; stems; surveys; tubulin; Southeastern United States; Show all 36 Subjects
- Abstract:
- ... A survey of pomegranate (Punica granatum L.) diseases in the Southeast United States was conducted from 2014 to 2016. Symptomatic leaves, stems, pedicels, buds, flowers, and fruits were collected, surface-disinfected with 1% chlorine for 1 min, and placed on V8 juice agar amended with rifampicin (0.01 mg L(‑1)) and ampicillin (0.25 mg L(‑1)). Fungal species were identified based on morphological a ...
- DOI:
- 10.17660/ActaHortic.2019.1254.39
- https://doi.org/10.17660/ActaHortic.2019.1254.39