Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida

La Alberca de Záncara, Spain

Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida

La Alberca de Záncara, Spain
SEARCH FILTERS
Time filter
Source Type

Rubio M.,CSIC - Center of Edafology and Applied Biology of the Segura | Martinez-Gomez P.,CSIC - Center of Edafology and Applied Biology of the Segura | Garcia-Brunton J.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida | Pascal T.,French National Institute for Agricultural Research | And 2 more authors.
Scientia Horticulturae | Year: 2012

Sharka disease, caused by Plum pox virus (PPV), is one of the most significant limiting factors for Prunus production worldwide, and the cultivation of resistant cultivars is the only definitive solution to this problem. In this study, 40 cultivated peach cultivars with different origins, chill requirements and fruit type were evaluated against a PPV Dideron-type isolate in controlled conditions in greenhouse for three evaluation cycles. Cultivars were grafted onto PPV infected 'GF305' rootstocks and, in each cycle, the presence of symptoms on leaves was scored and ELISA and RT-PCR was applied to check the presence of PPV on rootstocks and cultivars. The results showed the resistance of 'Catherine' to this strain, for this cultivar never showed sharka symptoms and was ELISA and RT-PCR negative. Some cultivars without symptoms but ELISA or PCR positive were tolerant to PPV. Most cultivars were sensitive, and showed symptoms of sharka or were ELISA or RT-PCR positive. In these cultivars, different degrees of symptom expression among the three cycles and between replications of each cultivar were observed. © 2012 Elsevier B.V.


Piedecausa M.A.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida | Aguado-Gimenez F.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida | Cerezo Valverde J.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida | Hernandez Llorente M.D.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida | Garcia-Garcia B.,Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida
Aquaculture Research | Year: 2012

Sediment cores were taken from impacted and non-impacted areas and subjected to different incubations: (i) uninoculated, (ii) inoculated with fish feed and (iii) inoculated with gilthead seabream (Sparus aurata) faeces. After inoculation (or not), the cores were incubated for 8h and the following biogeochemical fluxes were determined: sediment oxygen uptake (SOU), total ammonia nitrogen flux (TAN f) and the production of acid volatile sulphides (AVS-S p). The results showed that the impacted sediments had a more pronounced benthic metabolism than non-impacted sediments. Correlations between the variables and factorial analysis showed that oxygen consumption caused by the organic enrichment appeared as the trigger for subsequent biogeochemical alterations. The addition of faeces led to proportionally higher benthic rates of SOU, TAN f and AVS-S p than those obtained in the feed incubations. Although the feed is relatively sterile and does not create an oxygen demand until colonized by bacteria, the faeces are already richly colonized with fish gut bacteria and could start to consume oxygen without the lag phase experienced in the incubations with feed. The TAN f values measured after the addition of feed or faeces seem to be more related to the leaching velocity of TAN than with the benthic flux, given the short incubation time. © 2011 Blackwell Publishing Ltd.

Loading Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida collaborators
Loading Institute Murciano Of Investigacion Y Desarrollo Agrario Y Alimentario Imida collaborators