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Viral Diseases and Rehabilitation of Honeysuckle (Lonicera caerulea L.) Plants
Abstract
The prevalence of viruses in honeysuckle plants depends on the location of the plantation and the variety composition. TBRV virus had the maximal prevalence (28–60%) in most blue-berried honeysuckle stands. Prevalence of the ArMV virus ranged from 0 to 26%, that of the RpRSV virus ranged from 6 to 17%, and that of the SLRSV virus ranged from 7 to 25%. Most varieties of honeysuckle (67%) were infected with a complex of viruses, whereas no viruses were detected in certain varieties. The varieties produced at the Lisavenko Research Institute for Selection and Seedage had a higher degree of viral infection than those produced at the All-Russia Vavilov Research Institute of Plant Breeding. The viruses found in blue-berried honeysuckle plants were mostly in the latent form, but green leaf mottle and interstitial chlorosis were observed on individual bushes from a number of varieties. A tendency for virus infection accumulation with the extension of plant life was observed. TBRV and SLRSV transmission through seeds was registered, which is indicative of the need for improvement of the hybrid forms involved in the breeding process. The duration of dry air thermotherapy of honeysuckle plants should not exceed 30–45 days. Combined use of thermotherapy and meristem culture provided for an 80% yield of healthy plants.
... (e): There is only one report available referring to a possible association between Tobacco ringspot virus and Lonicera without verification data (Kuklina et al., 2002). (f): There is only one report available referring to a possible association between Tomato ringspot virus and Lonicera without verification data (Upadyshev et al., 2018) assessment information on the probability of entry, establishment, spread and impact is usually lacking. Therefore, these pests were also evaluated to determine their relevance for this opinion based on evidence that: a) the pest is present in Turkey; b) the pest is (i) absent or (ii) has a limited distribution in the EU; c) Lonicera spp. is a host of the pest; d) one or more life stages of the pest can be associated with the specified commodity; e) the pest may have an impact in the EU. ...
The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in the Commission Implementing Regulation (EU) 2018/2019 as 'High-risk plants, plant products and other objects'. This Scientific Opinion covers plant health risks posed by potted plants (2-4 years old) of specified Lonicera species produced in nurseries and that are imported from Turkey, taking into account the available scientific information, including the technical information provided by the NPPO of Turkey. The relevance of any pest for this Opinion was based on evidence following defined criteria listed in Section 4.1. Three species, the EU-quarantine pests Lopholeucaspis japonica and Meloidogyne chitwoodi and the protected zone quarantine pest Bemisia tabaci, fulfilled these criteria and were selected for further evaluation. For these pests, the risk mitigation measures proposed in the technical dossier from Turkey were evaluated taking into account the possible limiting factors. For these pests, an expert judgement is given on the likelihood of pest freedom taking into consideration the risk mitigation measures acting on the pest, including uncertainties associated with the assessment. The estimated degree of pest freedom varies among the pests evaluated, with B. tabaci on evergreen species of Lonicera spp. being the pest most frequently expected on the imported plants. The Expert Knowledge Elicitation indicated, with 95% certainty, that between 9,293 and 10,000 plants per 10,000 would be free of B. tabaci.
Some characteristics of a microplate method for the detection and assay of plant viruses using enzyme-labelled antibodies are described. The method enabled the highly sensitive detection of a number of morphologically different viruses in purified preparations and in unclarified extracts of herbaceous hosts and of infected crop plants. Virus concentrations were estimated by photometric measurement of the colour intensity of the hydrolysed substrate. The suitability of the tehcnique for various field and research applications is considered.
Tekhnologiya polucheniya ozdorovlennogo ot virusov posadochnogo materiala plodovykh i yagodnykh kul’tur: Metod. ukazaniya (The Technology for Obtaining Virus-Free Planting Material of Fruit and Berry Crops
- M T Upadyshev
- K V Metlitskaya
- V I Donetskikh
- A A Borisova
- V G Selivanov
- O A Piskunov
- S N Yudina
- M.T. Upadyshev
Matochnye nasazhdeniya i tekhnologiya razmnozheniya zhimolosti sinei: metodicheskie ukazaniya (Matricular Plantations and Technology for Blue-Berried Honeysuckle Reproduction: Methodical Instructions)
- M N Plekhanova
- M.N. Plekhanova
Innovative technological aspects of obtaining a healthy planting material of honeysuckle Lonicera caerulea L
- I M Kulikov
- M T Upadyshev
- V N Sorokopudov
- I.M. Kulikov
Control of the spread of honeysuckle and dahlias viruses
- I I Prokoshina
- V I Shatilo
- M A Keldysh
Virus sanitation and in vitro propagation of Lonicera edulus Turcz
- M T Upadyshev
Virus sanitation and in vitro propagation of Lonicera edulus Turcz. in Russia, 9 Intern. Conf. of Horticulture Fruit Growing and Viticulture 2. Floriculture and Medical Plants and Other General Themes
- M T Upadyshev
- M.T. Upadyshev
Monitoring of viral diseases on species of the genus Lonicera L. in the Tsitsina Main Botanical Garden of the Russian Academy of Sciences
- A G Kuklina
- M A Keldysh
- O N Chervyakova
- A.G. Kuklina
Viral diseases of honeysuckle. The state and prospects of the development of the honeysuckle culture in modern conditions
- M T Upadyshev
- M.T. Upadyshev
Ways to solve the problems of recovering garden crops from viruses
- I M Kulikov
- M T Upadyshev
- I.M. Kulikov
Viral diseases and modern methods of healing fruit and berry crops
- M T Upadyshev
- M.T. Upadyshev