Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress
In pepper crops, rootstocks that tolerate salt stress are not used because available commercial rootstocks offer limited profits. In this context, we obtained the hybrid NIBER®, a new salinity-tolerant rootstock that has been tested under real salinity field conditions for 3 years with 32%–80% highe...
| Autores principales: | , , , , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6292 https://www.sciencedirect.com/science/article/pii/S0981942820300164 |
| _version_ | 1855032401164500992 |
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| author | López-Serrano, Lidia Canet-Sanchis, Guillermo Vuletin Selak, Gabriela Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles |
| author_browse | Calatayud, Ángeles Canet-Sanchis, Guillermo López-Galarza, Salvador López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto Vuletin Selak, Gabriela |
| author_facet | López-Serrano, Lidia Canet-Sanchis, Guillermo Vuletin Selak, Gabriela Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles |
| author_sort | López-Serrano, Lidia |
| collection | ReDivia |
| description | In pepper crops, rootstocks that tolerate salt stress are not used because available commercial rootstocks offer limited profits. In this context, we obtained the hybrid NIBER®, a new salinity-tolerant rootstock that has been tested under real salinity field conditions for 3 years with 32%–80% higher yields than ungrafted pepper plants. This study aimed to set up the initial mechanisms involved in the salinity tolerance of grafted pepper plants using NIBER® as a rootstock to study root-shoot behavior, a basic requirement to develop efficient rootstocks. Gas exchange, Na+/K+, antioxidant capacity, nitrate reductase activity, ABA, proline, H2O2, phenols, MDA concentration and biomass were measured in ungrafted plants of cultivar Adige (A), self-grafted (A/A), grafted onto NIBER® (A/N) and reciprocal grafted plants (N/A), all exposed to 0 mM and 70 mM NaCl over a 10-day period. Salinity significantly and quickly decreased photosynthesis, stomatal conductance and nitrate reductase activity, but to lower extent in A/N plants compared to A, A/A and N/A. A/N plants showed decreases in the Na+/K+ ratio, ABA content and lipid peroxidation activity. This oxidative damage alleviation in A/N was probably due to an enhanced H2O2 level that activates antioxidant capacity to cope salinity stress, and acts as a signal molecule rather than a damaging one by contributing a major increase in phenols and, to a lesser extent, in proline concentration. These traits led to a minor impact on biomass in A/N plants under salinity conditions. Only the plants with the NIBER® rootstock controlled the scion by modulating responses to salinity. |
| format | article |
| id | ReDivia6292 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | ReDivia62922025-04-25T14:46:46Z Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress López-Serrano, Lidia Canet-Sanchis, Guillermo Vuletin Selak, Gabriela Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles H2O2 A Agriculture F62 Plant physiology - Growth and development F60 Plant physiology and biochemistry Horticulture Plant physiology Grafting Salt stress Pepper Salt tolerance Antioxidants Photosynthesis Rootstocks In pepper crops, rootstocks that tolerate salt stress are not used because available commercial rootstocks offer limited profits. In this context, we obtained the hybrid NIBER®, a new salinity-tolerant rootstock that has been tested under real salinity field conditions for 3 years with 32%–80% higher yields than ungrafted pepper plants. This study aimed to set up the initial mechanisms involved in the salinity tolerance of grafted pepper plants using NIBER® as a rootstock to study root-shoot behavior, a basic requirement to develop efficient rootstocks. Gas exchange, Na+/K+, antioxidant capacity, nitrate reductase activity, ABA, proline, H2O2, phenols, MDA concentration and biomass were measured in ungrafted plants of cultivar Adige (A), self-grafted (A/A), grafted onto NIBER® (A/N) and reciprocal grafted plants (N/A), all exposed to 0 mM and 70 mM NaCl over a 10-day period. Salinity significantly and quickly decreased photosynthesis, stomatal conductance and nitrate reductase activity, but to lower extent in A/N plants compared to A, A/A and N/A. A/N plants showed decreases in the Na+/K+ ratio, ABA content and lipid peroxidation activity. This oxidative damage alleviation in A/N was probably due to an enhanced H2O2 level that activates antioxidant capacity to cope salinity stress, and acts as a signal molecule rather than a damaging one by contributing a major increase in phenols and, to a lesser extent, in proline concentration. These traits led to a minor impact on biomass in A/N plants under salinity conditions. Only the plants with the NIBER® rootstock controlled the scion by modulating responses to salinity. 2020-01-28T12:37:15Z 2020-01-28T12:37:15Z 2020 article acceptedVersion López-Serrano, L., Canet-Sanchis, G., Selak, G. V., Penella, C., San Bautista, A., López-Galarza, S., & Calatayud, Á. (2020). Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress. Plant Physiology and Biochemistry, 148, 207-219 0981-9428 http://hdl.handle.net/20.500.11939/6292 10.1016/j.plaphy.2020.01.016 https://www.sciencedirect.com/science/article/pii/S0981942820300164 en info:eu-repo/grantAgreement/MINECO/Programa estatal de i+D+i Orientada a los Retos de la Sociedad/RTA2017-00030-C02//GENERACIÓN DE PATRONES DE PIMIENTO DIRIGIDOS A LA RESILIENCIA Y ADAPTACIÓN AL ESTRÉS ABIOTICO RTA2017-00030-C02 Elsevier electronico |
| spellingShingle | H2O2 A Agriculture F62 Plant physiology - Growth and development F60 Plant physiology and biochemistry Horticulture Plant physiology Grafting Salt stress Pepper Salt tolerance Antioxidants Photosynthesis Rootstocks López-Serrano, Lidia Canet-Sanchis, Guillermo Vuletin Selak, Gabriela Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title | Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title_full | Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title_fullStr | Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title_full_unstemmed | Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title_short | Physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| title_sort | physiological characterization of a pepper hybrid rootstock designed to cope with salinity stress |
| topic | H2O2 A Agriculture F62 Plant physiology - Growth and development F60 Plant physiology and biochemistry Horticulture Plant physiology Grafting Salt stress Pepper Salt tolerance Antioxidants Photosynthesis Rootstocks |
| url | http://hdl.handle.net/20.500.11939/6292 https://www.sciencedirect.com/science/article/pii/S0981942820300164 |
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