Full Text Journal Articles by
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Glucosylation prevents plant defense activation in phloem-feeding insects.

Osnat Malka, Michael L A E Easson, Christian Paetz, Monika Götz, Michael Reichelt, Beate Stein, Katrin Luck, Aleksa Stanišić, Ksenia Juravel, Diego Santos-Garcia, Lilach L Mondaca, Simon Springate, John Colvin, Stephan Winter, Jonathan Gershenzon, Shai Morin, Daniel G Vassão,

The metabolic adaptations by which phloem-feeding insects counteract plant defense compounds are poorly known. Two-component plant defenses, such as glucosinolates, consist of a glucosylated protoxin that is activated by a glycoside hydrolase upon plant damage. Phloem-feeding herbivores are not generally believed to be negatively impacted by two-component defenses due to ... Read more >>

Nat Chem Biol (Nature chemical biology)
[2020, :]

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Origin-Destination Flow Estimation from Link Count Data Only.

Subhrasankha Dey, Stephan Winter, Martin Tomko,

All established models in transportation engineering that estimate the numbers of trips between origins and destinations from vehicle counts use some form of a priori knowledge of the traffic. This paper, in contrast, presents a new origin-destination flow estimation model that uses only vehicle counts observed by traffic count sensors; ... Read more >>

Sensors (Basel) (Sensors (Basel, Switzerland))
[2020, 20(18):]

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A Recurrent Deep Network for Estimating the Pose of Real Indoor Images from Synthetic Image Sequences.

Debaditya Acharya, Sesa Singha Roy, Kourosh Khoshelham, Stephan Winter,

Recently, deep convolutional neural networks (CNN) have become popular for indoor visual localisation, where the networks learn to regress the camera pose from images directly. However, these approaches perform a 3D image-based reconstruction of the indoor spaces beforehand to determine camera poses, which is a challenge for large indoor spaces. ... Read more >>

Sensors (Basel) (Sensors (Basel, Switzerland))
[2020, 20(19):]

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Impact of two different dehydration methods on saffron quality, concerning the prevalence of Saffron latent virus (SaLV) in Iran.

Natalia Moratalla-López, Shirin Parizad, Mina Koohi Habibi, Stephan Winter, Siamak Kalantari, Sayanta Bera, Candida Lorenzo, M Valle García-Rodríguez, Akbar Dizadji, Gonzalo L Alonso,

The dehydration process is a prerequisite to preserve saffron for a long time. According to this process, saffron shows differences in the main compounds responsible for its quality (colour, taste, aroma, and flavonol content). At present, the freeze-drying method obtains dried products with the highest quality. Viruses can modify the ... Read more >>

Food Chem (Food chemistry)
[2021, 337:127786]

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Pest categorisation of non-EU viruses of Rubus L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Franco Finelli, Stephan Winter, Domenico Bosco, Michela Chiumenti, Francesco Di Serio, Franco Ferilli, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

The Panel on Plant Health of EFSA conducted a pest categorisation of 17 viruses of Rubus L. that were previously classified as either non-EU or of undetermined standing in a previous opinion. These infectious agents belong to different genera and are heterogeneous in their biology. Blackberry virus X, blackberry virus Z ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2020, 18(1):e05928]

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Duplex In Situ Hybridization of Virus Nucleic Acids in Plant Tissues Using RNAscope®.

Samar Sheat, Stephan Winter, Paolo Margaria,

RNAscope has been recently introduced by Advanced Cell Diagnostics (Newark, CA, USA) for in situ hybridization (ISH) of target RNAs using a proprietary technology for probe design and hybridization assay. The method has been extensively used as a basis for sensitive diagnostic assays in the medical field, while applications of ... Read more >>

Methods Mol. Biol. (Methods in molecular biology (Clifton, N.J.))
[2020, 2148:203-215]

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Pest categorisation of non-EU viruses of Ribes L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Franco Finelli, Stephan Winter, Domenico Bosco, Michela Chiumenti, Francesco Di Serio, Franco Ferilli, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

Following a request from the EU Commission, the Panel on Plant Health addressed the pest categorisation of the viruses of Ribes L. determined as being either non-EU or of undetermined standing in a previous EFSA opinion. These infectious agents belong to different genera and are heterogeneous in their biology. Alaska vitivirus ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2019, 17(11):e05859]

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List of non-EU viruses and viroids of Cydonia Mill., Fragaria L., Malus Mill., Prunus L., Pyrus L., Ribes L., Rubus L. and Vitis L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Stephan Winter, Michela Chiumenti, Francesco Di Serio, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

The Panel on Plant Health performed a listing of non-EU viruses and viroids (reported hereinafter as viruses) of Cydonia Mill., Fragaria L., Malus Mill., Prunus L., Pyrus L., Ribes L., Rubus L. and Vitis L. A systematic literature review identified 197 viruses infecting one or more of the host genera under ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2019, 17(9):e05501]

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Pest categorisation of non-EU viruses and viroids of Prunus L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Franco Finelli, Stephan Winter, Domenico Bosco, Michela Chiumenti, Francesco Di Serio, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

Following a request from the EU Commission, the Panel on Plant Health addressed the pest categorisation of the viruses and viroids of Prunus L. determined as being either non-EU or of undetermined standing in a previous EFSA opinion. These infectious agents belong to different genera and are heterogeneous in their biology. ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2019, 17(9):e05735]

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Pest categorisation of non-EU viruses of Fragaria L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Franco Finelli, Stephan Winter, Domenico Bosco, Michela Chiumenti, Francesco Di Serio, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

Following a request from the EU Commission, the Panel on Plant Health addressed the pest categorisation of the viruses and viroids of Fragaria L. determined as being either non-EU or of undetermined standing in a previous EFSA opinion. These infectious agents belong to different genera and are heterogeneous in their biology. ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2019, 17(9):e05766]

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Pest categorisation of non-EU viruses and viroids of Cydonia Mill., Malus Mill. and Pyrus L.

, Claude Bragard, Katharina Dehnen-Schmutz, Paolo Gonthier, Marie-Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas-Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans-Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Thierry Candresse, Elisavet Chatzivassiliou, Franco Finelli, Stephan Winter, Michela Chiumenti, Francesco Di Serio, Tomasz Kaluski, Angelantonio Minafra, Luisa Rubino,

Following a request from the EU Commission, the Panel on Plant Health performed a pest categorisation of 17 viruses and viroids, herein called viruses, of Cydonia Mill., Malus Mill. and Pyrus L. determined as being either non-EU or of undetermined standing in a previous EFSA opinion. These viruses belong to different ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2019, 17(9):e05590]

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Correction to: Molecular analysis of maize (Zea mays L.)-infecting mastreviruses in Ethiopia reveals marked diversity of virus genomes and a novel species.

Demsachew Guadie, Kassahun Tesfaye, Dennis Knierim, Stephan Winter, Adane Abraham,

The original version of this article unfortunately contained errors in the "Results" section. ... Read more >>

Virus Genes (Virus genes)
[2019, 55(3):346]

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The effects of geographical origin and virus infection on the saffron (Crocus sativus L.) quality.

Shirin Parizad, Akbar Dizadji, Mina Koohi Habibi, Stephan Winter, Siamak Kalantari, Shahrbanoo Movi, Candida Lorenzo Tendero, Gonzalo L Alonso, Natalia Moratalla-Lopez,

Saffron is appreciated by its colour, taste, and aroma. To examine the effect of abiotic and biotic stress on these main properties, in the span of 2014-2016, saffron stigmas were collected from major different saffron cultivation areas of Iran and saffron quality was estimated. The quality of saffron was assessed ... Read more >>

Food Chem (Food chemistry)
[2019, 295:387-394]

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Identification of a novel nanovirus in parsley.

H Josef Vetten, Dennis Knierim, Mirko Sebastian Rakoski, Wulf Menzel, Edgar Maiss, Bruno Gronenborn, Stephan Winter, Björn Krenz,

Using next-generation sequencing to characterize agents associated with a severe stunting disease of parsley from Germany, we identified a hitherto undescribed virus. We sequenced total RNA and rolling-circle-amplified DNA from diseased plants. The genome sequence of the virus shows that it is a member of the genus Nanovirus, but it ... Read more >>

Arch. Virol. (Archives of virology)
[2019, 164(7):1883-1887]

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Resistance Against Cassava Brown Streak Viruses From Africa in Cassava Germplasm From South America.

Samar Sheat, Bettina Fuerholzner, Beate Stein, Stephan Winter,

Cassava brown streak disease (CBSD) is a severe virus disease of cassava and prevalent in the eastern regions of Africa. The disease is characterized by distinct vein chlorosis and streak symptoms on leaves and stems and necrosis of storage roots. This necrosis can encompass large areas of the root, rendering ... Read more >>

(Frontiers in plant science)
[2019, 10:567]

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Molecular analysis of maize (Zea mays L.)-infecting mastreviruses in Ethiopia reveals marked diversity of virus genomes and a novel species.

Demsachew Guadie, Kassahun Tesfaye, Dennis Knierim, Stephan Winter, Adane Abraham,

Maize (Zea mays L.) is host for more than 50 virus species worldwide with Maize streak virus (MSV) (genus Mastrevirus) causing significant yield losses in Africa. A survey for viruses infecting maize was conducted in major growing regions of Ethiopia. To test for DNA viruses, in particular mastreviruses, rolling circle ... Read more >>

Virus Genes (Virus genes)
[2019, 55(3):339-345]

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Places in Information Science.

Ross S Purves, Stephan Winter, Werner Kuhn,

Human spatial concepts, such as the concept of place, are not immediately translatable to the geometric foundations of spatial databases and information systems developed over the past 50 years. These systems typically rest on the concepts of objects and fields, both bound to coordinates, as two general paradigms of geographic ... Read more >>

(Journal of the Association for Information Science and Technology)
[2019, 70(11):1173-1182]

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Survey for the identification and geographical distribution of viruses and virus diseases of maize (Zea mays L.) in Ethiopia

Demsachew Guadie, Dennis Knierim, Stephan Winter, Kassahun Tesfaye, Adane Abraham,

A survey to identify the distribution of virus diseases of maize was made in major maize growing regions of Ethiopia. Four surveys were conducted between 2015 and 2017. A total of 284 maize fields have been surveyed, of which 846 leaf samples with virus like disease symptoms were collected from ... Read more >>

(European journal of plant pathology)
[2019, 153(2):429-439]

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Description and genetic variation of a distinct species of Potyvirus infecting saffron (Crocus sativus L.) plants in major production regions in Iran

Shirin Parizad, Akbar Dizadji, Fernando García‐Arenal, Maria A. Ayllón, Mina Koohi Habibi, Shahrbanoo Movi, Siamak Kalantari, Stephan Winter,

Saffron (Crocus sativus L.), a highly valuable crop famous for the unique taste, aroma, colour and medicinal properties of the stigmas, is widely cultivated in Iran. During 2011–2016, a total of 965 samples were randomly collected from six important saffron growing provinces of Iran to test for the presence of ... Read more >>

Ann. Appl. Biol. (The Annals of applied biology)
[2018, 173(3):233-242]

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Localization of cassava brown streak virus in Nicotiana rustica and cassava Manihot esculenta (Crantz) using RNAscope® in situ hybridization.

Esperance Munganyinka, Paolo Margaria, Samar Sheat, Elijah M Ateka, Fred Tairo, Joseph Ndunguru, Stephan Winter,

BACKGROUND:Cassava brown streak disease (CBSD) has a viral aetiology and is caused by viruses belonging to the genus Ipomovirus (family Potyviridae), Cassava brown streak virus (CBSV) and Ugandan cassava brown streak virus (UCBSV). Molecular and serological methods are available for detection, discrimination and quantification of cassava brown streak viruses (CBSVs) ... Read more >>

Virol J (Virology journal)
[2018, 15(1):128]

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Guidance on quantitative pest risk assessment.

, Michael Jeger, Claude Bragard, David Caffier, Thierry Candresse, Elisavet Chatzivassiliou, Katharina Dehnen-Schmutz, Jean-Claude Grégoire, Josep Anton Jaques Miret, Alan MacLeod, Maria Navajas Navarro, Björn Niere, Stephen Parnell, Roel Potting, Trond Rafoss, Vittorio Rossi, Gregor Urek, Ariena Van Bruggen, Wopke Van Der Werf, Jonathan West, Stephan Winter, Andy Hart, Jan Schans, Gritta Schrader, Muriel Suffert, Virag Kertész, Svetla Kozelska, Maria Rosaria Mannino, Olaf Mosbach-Schulz, Marco Pautasso, Giuseppe Stancanelli, Sara Tramontini, Sybren Vos, Gianni Gilioli,

This Guidance describes a two-phase approach for a fit-for-purpose method for the assessment of plant pest risk in the territory of the EU. Phase one consists of pest categorisation to determine whether the pest has the characteristics of a quarantine pest or those of a regulated non-quarantine pest for the ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2018, 16(8):e05350]

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Molecular characterization of a new badnavirus associated with streak symptoms on enset (Ensete ventricosum, Musaceae)

Adane Abraham, Katja R. Richert‐Pöggeler, Stephan Winter, Wulf Menzel,

Electron microscopy of leaf samples displaying streak symptoms from enset (Ensete ventricosum), a banana‐like plant widely cultivated in Ethiopia, showed the presence of bacilliform shaped virions as known for badnaviruses. DNA extracts subjected to rolling circle amplification (RCA), polymerase chain reaction (PCR) and cloning and sequence analysis revealed that the ... Read more >>

(Phytopathologische Zeitschrift.)
[2018, 166(7-8):565-571]

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Pest categorisation of Lopholeucaspis japonica.

, Michael Jeger, Claude Bragard, David Caffier, Thierry Candresse, Elisavet Chatzivassiliou, Katharina Dehnen-Schmutz, Gianni Gilioli, Jean-Claude Grégoire, Josep Anton Jaques Miret, Maria Navajas Navarro, Björn Niere, Stephen Parnell, Roel Potting, Trond Rafoss, Vittorio Rossi, Gregor Urek, Ariena Van Bruggen, Wopke Van der Werf, Jonathan West, Stephan Winter, Virág Kertész, Alan MacLeod,

Following a request from the European Commission, the EFSA Plant Health Panel performed a pest categorisation of Lopholeucaspis japonica (Hemiptera: Diaspididae), an armoured scale which preferentially feeds on smooth barked woody trees and shrubs. The pest occurs in Asia, North America and non-EU Europe (Caucasus region and Ukraine). The pest is ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2018, 16(7):e05353]

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Updated pest categorisation of Xylella fastidiosa.

, Michael Jeger, David Caffier, Thierry Candresse, Elisavet Chatzivassiliou, Katharina Dehnen-Schmutz, Gianni Gilioli, Jean-Claude Grégoire, Josep Anton Jaques Miret, Alan MacLeod, Maria Navajas Navarro, Björn Niere, Stephen Parnell, Roel Potting, Trond Rafoss, Vittorio Rossi, Gregor Urek, Ariena Van Bruggen, Wopke Van der Werf, Jonathan West, Stephan Winter, Rodrigo Almeida, Domenico Bosco, Marie-Agnès Jacques, Blanca Landa, Alexander Purcell, Maria Saponari, Ewelina Czwienczek, Alice Delbianco, Giuseppe Stancanelli, Claude Bragard,

Following a request from the European Commission, the EFSA Plant Health Panel updated its pest categorisation of Xylella fastidiosa, previously delivered as part of the pest risk assessment published in 2015. X. fastidiosa is a Gram-negative bacterium, responsible for various plant diseases, including Pierce's disease, phony peach disease, citrus variegated chlorosis, olive quick ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2018, 16(7):e05357]

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Pest categorisation of Chrysomyxa arctostaphyli.

, Michael Jeger, Claude Bragard, David Caffier, Thierry Candresse, Elisavet Chatzivassiliou, Katharina Dehnen-Schmutz, Gianni Gilioli, Jean-Claude Grégoire, Josep Anton Jaques Miret, Alan MacLeod, Maria Navajas Navarro, Björn Niere, Stephen Parnell, Roel Potting, Trond Rafoss, Vittorio Rossi, Gregor Urek, Ariena Van Bruggen, Wopke Van der Werf, Jonathan West, Stephan Winter, Johanna Boberg, Paolo Gonthier, Marco Pautasso,

Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of Chrysomyxa arctostaphyli, a well-defined and distinguishable fungal species of the family Coleosporiaceae. The pathogen is regulated in Council Directive 2000/29/EC (Annex IAI) as a harmful organism whose introduction into the EU is banned. C. arctostaphyli ... Read more >>

EFSA J (EFSA journal. European Food Safety Authority)
[2018, 16(7):e05355]

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