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You searched for: Journal Plant disease Remove constraint Journal: Plant disease Source 2014 v.98 no.8 Remove constraint Source: 2014 v.98 no.8 Subject leaves Remove constraint Subject: leaves
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1. A Study of the Sugarcane Yellow Leaf Disease in Argentina

Author:
Bertani, R. P.; Perera, M. F.; Arias, M. E.; Luque, C.; Funes, C.; González, V.; Cuenya, M. I.; Ploper, L. D.; Welin, B.; Castagnaro, A. P.
Source:
Plant disease 2014 v.98 no.8 pp. 1036-1042
ISSN:
0191-2917
Subject:
Sugarcane yellow leaf virus; bundle sheath cells; chloroplasts; coat proteins; disease detection; foliar diseases; genes; genotype; leaves; phytoplasmal diseases; reverse transcriptase polymerase chain reaction; sequence analysis; starch; sugarcane; viruses; Argentina
Abstract:
... Yellow leaf disease, caused by Sugarcane yellow leaf virus (SCYLV), is widespread around the world but very little information is available on this viral disease in Argentina. Therefore, the aims of the study were to assess the presence of SCYLV, analyze its distribution in the main sugarcane production areas of Argentina, characterize the virus, and determine histological alterations caused by it ...
DOI:
10.1094/PDIS-12-13-1251-RE

2. Damping-Off and Root Rot of Pepper Caused by Fusarium oxysporum in Almería Province, Spain

Author:
Pérez-Hernández, A.; Serrano-Alonso, Y.; Aguilar-Pérez, M. I.; Gómez-Uroz, R.; Gómez-Vázquez, J.
Source:
Plant disease 2014 v.98 no.8 pp. 1159
ISSN:
0191-2917
Subject:
Capsicum annuum; DNA; Dianthus caryophyllus; Fusarium oxysporum; agar; chlamydospores; conidia; containers; damping off; genetic databases; greenhouses; growth retardation; inoculum; leaves; necrosis; pathogenicity; pathogens; pepper; root rot; roots; seedlings; sowing; summer; sweet peppers; temperature; vermiculite; wilting; Spain
Abstract:
... Bell pepper (Capsicum annuum L.) is intensively cropped in ~9,920 ha of plastic houses in southern Spain. In summer 2013, pepper seedlings cv. Melchor, Acorde, Galena, Prometeo, and Souleria, with 4 to 8 leaves, grown in a nursery greenhouse near El Ejido, Almería Province, exhibited root rot and stunting. Incidence of symptomatic plants was ~35% among over 10 million. Fusarium sp. was consistentl ...
DOI:
10.1094/PDIS-02-14-0194-PDN

3. First Report of Aphelenchoides besseyi Causing White Tip Disease of Rice in Jilin Province, China

Author:
Ou, S. Q.; Gao, J.; Peng, D. L.; Qi, C. Y.; Zhang, J. H.; Meng, Y.; Lu, B. H.
Source:
Plant disease 2014 v.98 no.8 pp. 1165
ISSN:
0191-2917
Subject:
Aphelenchoides besseyi; DNA primers; body length; cities; esophagus; females; genes; genetic databases; growth retardation; inflorescences; internal transcribed spacers; intestines; leaves; males; necrosis; oocytes; pathogens; plant parasitic nematodes; polymerase chain reaction; quarantine; ribosomal DNA; rice; seeds; surveys; tail; China; India; Russia
Abstract:
... White tip disease of rice caused by the plant-parasitic nematode Aphelenchoides besseyi is an important domestic quarantine issue causing heavy yield losses of rice. During a survey for rice diseases in 2013, suspect white tip disease of rice was observed in the cities of Changchun and Gongzhuling, Jinlin Province, China. Leaf tips of susceptible rice varieties were white or yellow, becoming brown ...
DOI:
10.1094/PDIS-01-14-0020-PDN

4. First Report of Bacterial Leaf Blight on Mustard Greens (Brassica juncea) Caused by Pseudomonas cannabina pv. alisalensis in Mississippi

Author:
Wechter, W. P.; Keinath, A. P.; Smith, J. P.; Farnham, M. W.; Bull, C. T.; Schofield, D. A.
Source:
Plant disease 2014 v.98 no.8 pp. 1151
ISSN:
0191-2917
Subject:
Brassica juncea; Helianthus annuus; Pseudomonas; absorbance; agar; antibiotics; bacteria; bacteriophages; cultivars; growers; growth chambers; leaf blight; leather tanning; leaves; microbial growth; mustard greens; pathogenicity; pathotypes; photoperiod; polymerase chain reaction; relative humidity; runoff; sodium hypochlorite; turnip greens; ultraviolet radiation; Australia; Europe; Japan; Mississippi
Abstract:
... In 2010, a brassica leafy greens grower in Sunflower County, MS, observed scattered outbreaks of a leaf blight on mustard greens (Brassica juncea) in a 180-ha field. A severe outbreak of leaf blight occurred on mustard greens and turnip greens (B. rapa) in the same field in 2011 with more than 80 ha affected. The affected field, established in 2010, had no prior history of being cropped to brassic ...
DOI:
10.1094/PDIS-01-14-0026-PDN

5. First Report of Cercospora apii, Causal Agent of Cercospora Early Blight of Celery, in Serbia

Author:
Milosavljević, A.; Pfaf-Dolovac, E.; Mitrović, M.; Jović, J.; Toševski, I.; Duduk, N.; Trkulja, N.
Source:
Plant disease 2014 v.98 no.8 pp. 1157
ISSN:
0191-2917
Subject:
Apium graveolens var. dulce; Cercospora apii; agar; blight; calmodulin; celery; conidia; conidiophores; disease severity; ethanol; fungi; genes; genetic databases; greenhouses; histones; internal transcribed spacers; leaves; mycelium; pathogenicity; pathogens; seedlings; surveys; vegetable crops; Serbia
Abstract:
... Celery (Apium graveolens var. dulce) is a very important vegetable crop intensively cultivated in eastern and southern Serbia. During a field survey in August and September 2012, we observed symptoms similar to those of Cercospora early blight in eastern Serbia, with some of the affected fields showing up to 80% disease severity. The lesions on leaves were amphigenous, subcircular to angular and m ...
DOI:
10.1094/PDIS-02-14-0135-PDN

6. First Report of Cherry mottle leaf virus Infecting Cherry in China

Author:
Ma, Y. X.; Li, J. J.; Li, G. F.; Zhu, S. F.
Source:
Plant disease 2014 v.98 no.8 pp. 1161
ISSN:
0191-2917
Subject:
Cherry mottle leaf virus; Eriophyes; Prunus avium; Prunus emarginata; RNA; RNA-directed DNA polymerase; cherries; clones; coat proteins; complementary DNA; cultivars; financial economics; genes; hybrids; leaves; mites; nucleotide sequences; orchards; peaches; plant diseases and disorders; plant viruses; planting; polymerase chain reaction; propagation materials; rootstocks; sequence alignment; small fruits; surveys; trees; viruses; wood; China
Abstract:
... Cherry mottle leaf virus (CMLV) is a member of the genus Trichovirus (family Betaflexiviridae). CMLV infects several species of the genus Prunus including cherry (Prunus avium) and peach (P. persica) (2,3). It is spread via budding and grafting with infected wood and can be transmitted from infected bitter cherry (P. emarginata), or infected but symptomless peach trees to healthy sweet cherry tree ...
DOI:
10.1094/PDIS-01-14-0002-PDN

7. First Report of Citrus leprosis virus Nuclear Type in Sweet Orange in Colombia

Author:
Roy, Avijit; León, M. G.; Stone Schneider, A. L. W. L.; Hartung, J. S.; Brlansky, R. H.
Source:
Plant disease 2014 v.98 no.8 pp. 1162
ISSN:
0191-2917
Subject:
Brevipalpus; Citrus leprosis virus C; Citrus sinensis; Dichorhavirus; RNA; Tetranychidae; coat proteins; color; crop production; cytoplasm; genes; leaves; mixed infection; molecular cloning; new genus; nucleocapsid; nucleotide sequences; oranges; phylogeny; reverse transcriptase polymerase chain reaction; sequence analysis; viruses; Brazil; Colombia; Mexico; Panama
Abstract:
... Colombia is ranked 18th in the world in citrus production and contributed 0.9% of the total world share. Among four important citrus-producing regions of Colombia, the Orinoco region (3 to 6°N, 68 to 74°W) consists of two citrus-producing states, Meta and Casanare. Citrus leprosis is the most important viral disease of citrus in Colombia (1,3). Three types of Citrus leprosis virus (CiLV) infect ci ...
DOI:
10.1094/PDIS-01-14-0083-PDN

8. First Report of Cucumber green mottle mosaic virus on Melon in the United States

Author:
Tian, T.; Posis, K.; Maroon-Lango, C. J.; Mavrodieva, V.; Haymes, S.; Pitman, T. L.; Falk, B. W.
Source:
Plant disease 2014 v.98 no.8 pp. 1163
ISSN:
0191-2917
Subject:
Animal and Plant Health Inspection Service; Citrullus lanatus; Cucumber green mottle mosaic virus; Cucumis melo; Cucumis sativus; RNA; Squash mosaic virus; Watermelon mosaic virus; crops; cucumbers; greenhouses; leaves; mixed infection; nucleotide sequences; plant diseases and disorders; plant viruses; planting; reverse transcriptase polymerase chain reaction; sap; seeds; transmission electron microscopes; viruses; watermelons; California; Canada; China; India; Israel; Japan; Korean Peninsula; Russia; Spain
Abstract:
... In July 2013, a melon (Cucumis melo var. Saski) field in Yolo County, California, was inspected as part of a phytosanitary inspection for seed production. The leaves of the plants showed mosaic, green mottle, and blotches. When plant sap was examined using a transmission electron microscope, rigid rod-shaped particles were observed. Melon plant samples were analyzed by both CDFA and USDA APHIS PPQ ...
DOI:
10.1094/PDIS-02-14-0123-PDN

9. First Report of Leaf Spot Caused by Alternaria alternata on Marigold (Tagetes erecta) in Beijing, China

Author:
Li, Y.; Shen, J.; Pan, B. H.; Guo, M. X.; Wang, Q. X.; Ouyang, C. B.; Yan, D. D.; Cao, A. C.
Source:
Plant disease 2014 v.98 no.8 pp. 1153
ISSN:
0191-2917
Subject:
Alternaria alternata; DNA primers; Tagetes erecta; agar; beans; color; conidia; conidiophores; flowers; fungi; genes; genetic databases; growth chambers; internal transcribed spacers; leaf spot; leaves; light intensity; pathogenicity; photoperiod; planting; polymerase chain reaction; relative humidity; ribosomal DNA; China; Japan
Abstract:
... Marigold (Tagetes erecta) is an important commercial crop and 200 ha are planted every year in the Beijing district of China. A leaf spot disease of T. erecta was observed during 2012 and 2013 in the Beijing district. The disease was widespread, with 60 to 75% of the fields affected. Leaves of the affected plants had small, brown, necrotic spots on most of the foliage. Yield losses of flowers of u ...
DOI:
10.1094/PDIS-08-13-0858-PDN

10. First Report of Rust of Plumeria rubra Caused by Coleosporium plumeriae in Guangdong Province, China

Author:
Yang, Q. Y.; Lin, B. R.; Zhang, J. X.; Shen, H. F.; Pu, X. M.; Wang, Z. W.; Zeng, D. Q.
Source:
Plant disease 2014 v.98 no.8 pp. 1154
ISSN:
0191-2917
Subject:
Coleosporium; Plumeria rubra; abscission; aesthetics; cultivars; dew; flowers; gardens; internal transcribed spacers; leaves; necrosis; ornamental trees; ornamental value; parks; pathogenicity; pathogens; planting; plastic bags; ribosomal DNA; rust diseases; spraying; summer; teliospores; urediniospores; China
Abstract:
... Plumeria spp. are ornamental trees commonly planted in parks and gardens, and Plumeria rubra cultivars (Frangipani) is most common in Guangdong Province, China. A rust disease of P. rubra was observed on leaves of susceptible plants from August to December 2013. Ten nurseries were surveyed in September 2013, and 91% (220 of 240) of the plumeria plants were infected with rust. Symptoms first appear ...
DOI:
10.1094/PDIS-01-14-0019-PDN

11. First Report of Taro vein chlorosis virus Infecting Taro (Colocasia esculenta) in the United States

Author:
Long, M. H.; Ayin, C.; Li, R.; Hu, J. S.; Melzer, M. J.
Source:
Plant disease 2014 v.98 no.8 pp. 1160
ISSN:
0191-2917
Subject:
Colocasia esculenta; DNA primers; RNA; RNA-directed DNA polymerase; RNA-directed RNA polymerase; Taro vein chlorosis virus; arthropods; chlorosis; clones; complementary DNA; disease vectors; farmers; genes; genetic databases; genetic variation; germplasm; islands; leaves; molecular cloning; necrosis; nucleic acid hybridization; nucleocapsid; plant diseases and disorders; plant viruses; polymerase chain reaction; taro; viruses; Molokai; Pennsylvania
Abstract:
... In March 2013, taro plants (Colocasia esculenta [L.] Schott cv. Iliuaua) with leaves displaying veinal chlorosis and necrosis were observed on the island of Molokai. These symptoms were similar to those of taro vein chlorosis, a disease of taro caused by Taro vein chlorosis virus (TaVCV; family Rhabdoviridae, genus Nucleorhabdovirus). To explore this possibility, RNA was isolated from both symptom ...
DOI:
10.1094/PDIS-03-14-0244-PDN

12. First Report of Verticillium Wilt of Mango (Mangifera indica) Caused by Verticillium dahliae in Italy

Author:
Ahmed, Y.; Cirvilleri, G.; D'Onghia Yaseen, A. M. T.
Source:
Plant disease 2014 v.98 no.8 pp. 1156
ISSN:
0191-2917
Subject:
Mangifera indica; Verticillium dahliae; Verticillium wilt; agar; branches; conidia; conidiophores; defoliation; dieback; dipping; discoloration; environmental factors; fruit growing; fruit quality; greenhouses; industry; intergenic DNA; isolation techniques; leaves; mangoes; markets; orchards; pathogen identification; relative humidity; roots; sclerotia; shoots; soil-borne diseases; summer; tissues; trees; wood; Italy; Sicily
Abstract:
... Mango (Mangifera indica L.) is an important fruit crop in many tropical and subtropical countries. This crop has been recently introduced in Italy, mainly in Sicily (southern Italy), where it proves to be a good commodity for the national market. However, the future of mango cultivation in Sicily is threatened by diverse biotic and abiotic factors, which may limit production and fruit quality. For ...
DOI:
10.1094/PDIS-01-14-0098-PDN

13. Physiologic Specialization of Puccinia triticina on Wheat in the United States in 2012

Author:
Kolmer, J. A; Hughes, M. E.
Source:
Plant disease 2014 v.98 no.8 pp. 1145-1150
ISSN:
0191-2917
Subject:
Puccinia recondita; breeding; cultivars; genes; hard red spring wheat; hard red winter wheat; human resources; leaf rust; leaves; phenotype; soft red winter wheat; virulence; Eastern United States; Great Plains region; Idaho; Ohio River; Washington (state)
Abstract:
... Collections of Puccinia triticina were obtained from rust-infected leaves provided by cooperators throughout the United States and from wheat fields and breeding plots by United States Department of Agriculture–Agricultural Research Service personnel and cooperators in the Great Plains, Ohio River Valley, southeastern states, and Washington State and Idaho in order to determine the virulence of th ...
DOI:
10.1094/PDIS-12-13-1267-SR