Results 111 to 120 of about 3,953 (249)

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Costa Rica

open access: yesEFSA Journal, Volume 22, Issue 11, November 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the probability of entry of pests (likelihood of pest freedom at entry), including both regulated and non‐regulated pests, associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Costa Rica.
EFSA Panel on Plant Health (PLH)   +37 more
wiley   +1 more source

Characterization of a Tomato Protein Kinase Gene Induced by Infection by Potato spindle tuber viroid

open access: yesMolecular Plant-Microbe Interactions, 2000
Viroids—covalently closed, circular RNA molecules in the size range of 250 to 450 nucleotides—are the smallest known infectious agents and cause a number of diseases of crop plants.
Rosemarie W. Hammond, Yan Zhao
doaj   +1 more source

Survey for the Four Major Viruses in Potato ‘Poluranka’ Local Cultivar in Herzegovina [PDF]

open access: yes, 2015
Potato production is directly influenced by various biological factors among which the most important viruses take the place. There are more than 20 known viruses that affect potato causing malformation in growth and yield reduction. In order to preserve
Adrijana Filipović, Ana Karačić
core   +1 more source

Detection of tomato brown rugose fruit virus in environmental residues: The importance of contextualizing test results

open access: yesPlant Pathology, Volume 73, Issue 8, Page 2071-2083, October 2024.
ToBRFV or its residues were detected on nonhost plants and surfaces in and around greenhouses; more often in areas with nearby tomato production but also in a wider environment beyond infected crops. Abstract Tomato brown rugose fruit virus (ToBRFV) is regulated as a quarantine pest in many countries worldwide.
Anne K. J. Giesbers   +13 more
wiley   +1 more source

Характеристики вірусів, що уражують картоплю [PDF]

open access: yes, 2008
В огляді літератури представлено основні характеристики вірусів, виявлених на картоплі: таксономія, морфологія і будова віріонів, склад геному, біологічні властивості та спричинені ними захворювання.
Коломієць, Л.П.
core  

Scientific Opinion on the assessment of the risk of solanaceous pospiviroids for the EU territory and the identification and evaluation of risk management options. [PDF]

open access: yes, 2011
Following a request from the EU Commission, the EFSA PLH Panel conducted a risk assessment for the EU territory of pospiviroids affecting solanaceous crops, identified and evaluated risk reduction options and evaluated the EU provisional emergency ...
Baker, R.   +5 more
core   +1 more source

Sequence homology between potato spindle tuber viroid and U3B snRNA [PDF]

open access: yesFEBS Letters, 1983
Sequence homology was found by computer analysis between potato spindle tuber viroid (PSTV) RNA and U3B snRNA of Novikoff hepatoma cells. This homology is colinear in arrangement, extends in length to 81% of the entire U3B snRNA molecule and is involved in the PSTV molecule unique sites which, if depicted in terms of the secondary structure of the ...
Ferenc Solymosy   +2 more
openaire   +3 more sources

Viroid-infected Tomato and Capsicum Seed Shipments to Australia

open access: yesViruses, 2019
Pospiviroid species are transmitted through capsicum and tomato seeds. Trade in these seeds represents a route for the viroids to invade new regions, but the magnitude of this hazard has not been adequately investigated. Since 2012, tomato seed lots sent
Fiona Constable   +7 more
doaj   +1 more source

Tertiary Structural and Functional Analyses of a Viroid RNA Motif by Isostericity Matrix and Mutagenesis Reveal its Essential Role in Replication [PDF]

open access: yes, 2006
RNA-templated RNA replication is essential for viral or viroid infection, as well as for regulation of cellular gene expression. Specific RNA motifs likely regulate various aspects of this replication.
Boris-Lawrie, Kathleen   +6 more
core   +3 more sources

Role of the Variable Domain in Modulating Potato Spindle Tuber Viroid Replication

open access: yesVirology, 1996
Potato spindle tuber viroid (PSTVd) is believed to undergo a series of specific structural transitions during replication. The variable domain of PSTVd is known to contain sequences that are important for replication/accumulation as well as one of three "premelting regions" which control breakdown of the native structure in vitro.
Yi Hu   +3 more
openaire   +3 more sources

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