دورية أكاديمية
Shoot tip necrosis of in vitro plant cultures: a reappraisal of possible causes and solutions
| العنوان: | Shoot tip necrosis of in vitro plant cultures: a reappraisal of possible causes and solutions |
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| المؤلفون: | Teixeira da Silva, Jaime A., Nezami Alanagh, Esmaeil, Barreal, M. Esther, Kher, Mafatlal M., Wicaksono, Adhityo, Gulyás, Andrea, Hidvégi, Norbert, Magyar Tábori, Katalin, Mendler Drienyovszki, Nóra, Márton, László, Landín Pérez, Mariana, Gallego, Pedro Pablo, Driver, John A., Dobránszki, Judit |
| المساهمون: | Universidade de Santiago de Compostela. Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica |
| بيانات النشر: | Springer |
| المجموعة: | Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC) |
| مصطلحات موضوعية: | Boron, Calcium, Chloride, In vitro shoots, Mineral nutrient deficiency, Physiological disorder, Plant growth regulators |
| الوصف: | Shoot tip necrosis is a physiological condition and disorder that can arise in plantlets or shoots in vitro that results in death of the shoot tip. This condition, which can spread basipetally and affect the emergence of axillary shoots from buds lower down the stem, is due to the cessation of apical dominance. STN can occur at both shoot multiplication and rooting stages. One of the most common factors that cause STN is nutrient deficiency or imbalance. Moreover, the presence or absence of plant growth regulators (auxins or cytokinins) at specific developmental stages may impact STN. The cytokinin to auxin ratio within an in vitro plant can be modified by varying the concentration of cytokinins used in the culture medium. The supply of nutrients to in vitro shoots or plantlets might also affect their hormonal balance, thus modifying the occurrence of STN. High relative humidity within culture vessels and hyperhydricity are associated with STN. An adequate supply of calcium as the divalent cation (Ca2+) can hinder STN by inhibiting the accumulation of phenolic compounds and thus programmed cell death. Moreover, the level of Ca2+ affects auxin transport and ethylene production, and higher ethylene production, which can occur as a result of high relative humidity in or poor ventilation of the in vitro culture vessel, induces STN. High relative humidity can decrease the mobility of Ca2+ within a plant, resulting in Ca2+ deficiency and STN. STN of in vitro shoots or plantlets can be halted or reversed by altering the basal medium, mainly the concentration of Ca2+, adjusting the levels of auxins or cytokinins, or modifying culture conditions. This review examines the literature related to STN, seeks to discover the associated factors and relations between them, proposes practical solutions, and attempts to better understand the mechanism(s) underlying this condition in vitro ; This research was financed by the Higher Education Institutional Excellence Programme (NKFIH-1150-6/2019) of the Ministry of Innovation and ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0032-0935 1432-2048 |
| العلاقة: | https://doi.org/10.1007/s00425-020-03449-4Test; Teixeira da Silva, J.A., Nezami-Alanagh, E., Barreal, M.E. et al. Shoot tip necrosis of in vitro plant cultures: a reappraisal of possible causes and solutions. Planta 252, 47 (2020). https://doi.org/10.1007/s00425-020-03449-4Test; http://hdl.handle.net/10347/24250Test |
| DOI: | 10.1007/s00425-020-03449-4 |
| الإتاحة: | https://doi.org/10.1007/s00425-020-03449-4Test http://hdl.handle.net/10347/24250Test |
| حقوق: | © The Author(s) 2020. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0Test/ ; Atribución 4.0 Internacional ; http://creativecommons.org/licenses/by/4.0Test/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.DBB61518 |
| قاعدة البيانات: | BASE |
| تدمد: | 00320935 14322048 |
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| DOI: | 10.1007/s00425-020-03449-4 |