Seed Borne Plant Viruses: A Threat for the Global Exchanges

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: closed (30 December 2020) | Viewed by 9255

Special Issue Editor


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Guest Editor
DEPARTMENT OF AGRICULTURAL, FOOD AND FORESTRY SCIENCE (SAAF); University of Palermo - Viale delle Scienze, Bld. 5 - 90128 - Palermo (Italy)
Interests: development and validation of new techniques for virus detection; plant virology; molecular diagnosis; epidemiology; phylogenetic analysis; seedborne viruses; epidemiology of plant viruses

Special Issue Information

Dear Colleagues,

The globalization of international trade and the strong movement of free commodities complicate the control of pathogens worldwide. In this context, the control of seed-transmitted pathogens is extremely important. Among the most dangerous pathogens, viruses cause considerable economical losses worldwide because we have not yet developed efficient methods for their control, due to the great ability of viruses to rapidly evolve through mutation and genetic recombination, enabling their quick adaptation to changing environmental conditions. Therefore, it is extremely important to know the seed transmission methods of viruses, the overall spread of these pathogens, and their evolutionary tendency in nature and especially in agroecological contexts in order to plan appropriate intervention measures. Transmission through seed is a property intrinsic to members of many of known groups of plant viruses. About 20% of the described plant viruses are seed-transmitted in one or more hosts, and it is estimated that one-third of these have been demonstrated to be seed-transmitted in at least one host.

This Special Issue focuses on the state-of-the-art of seedborne plant viruses in an attempt to acquire as much information as possible about this transmission method in an attempt to implement prevention methods for their efficient control. For this Special Issue, we would like to include both research and review papers including the latest advances in different aspects of seedborne plant viruses and their control.

Dr. Stefano Panno
Guest Editor

Manuscript Submission Information

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Keywords

  • plant viral diseases
  • virus transmission mechanisms
  • seedborne viruses
  • epidemiology
  • management and control of viral diseases
  • phytosanitary measures against viral diseases

Published Papers (1 paper)

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Research

13 pages, 295 KiB  
Article
Tomato Brown Rugose Fruit Virus: Seed Transmission Rate and Efficacy of Different Seed Disinfection Treatments
by Salvatore Davino, Andrea Giovanni Caruso, Sofia Bertacca, Stefano Barone and Stefano Panno
Plants 2020, 9(11), 1615; https://doi.org/10.3390/plants9111615 - 20 Nov 2020
Cited by 54 | Viewed by 8804
Abstract
Tomato brown rugose fruit virus (ToBRFV) is a highly infectious virus, that is becoming a threat to tomato production worldwide. In this work we evaluated the localization of ToBRFV particles in tomato seeds, its seed transmission rate and efficacy of disinfection, and the [...] Read more.
Tomato brown rugose fruit virus (ToBRFV) is a highly infectious virus, that is becoming a threat to tomato production worldwide. In this work we evaluated the localization of ToBRFV particles in tomato seeds, its seed transmission rate and efficacy of disinfection, and the effects of different thermal- and chemical-based treatments on ToBRFV-infected seeds’ germination. Analyses demonstrated that ToBRFV was located in the seed coat, sometime in the endosperm, but never in the embryo; its transmission from infected seeds to plantlets occurs by micro-lesions during the germination. The ToBRFV seed transmission rate was 2.8% in cotyledons and 1.8% in the third true leaf. Regarding the different disinfection treatments, they returned 100% of germination at 14 days post-treatment (dpt), except for the treatment with 2% hydrochloric acid +1.5% sodium hypochlorite for 24 h, for which no seed germinated after 14 dpt. All treatments have the ability to inactivate ToBRFV, but in six out of seven treatments ToBRFV was still detectable by RT-qPCR. These results raise many questions about the correct way to carry out diagnosis at customs. To our knowledge, this is the first study on the effective localization of ToBRFV particles in seeds. Full article
(This article belongs to the Special Issue Seed Borne Plant Viruses: A Threat for the Global Exchanges)
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