NCED expression is related to increased ABA biosynthesis and stomatal closure under aluminum stress
| العنوان: | NCED expression is related to increased ABA biosynthesis and stomatal closure under aluminum stress |
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| المؤلفون: | Giselle Schwab Silva, Gustavo Habermann, Andrew J. Thompson, Douglas Silva Domingues, Kyle Macleod, Marina Alves Gavassi, Mariana Feitosa Cavalheiro, Carolina de Marchi Santiago da Silva, Paulo Marcelo Rayner Oliveira |
| المساهمون: | Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), Cranfield University, Universidade Estadual de Campinas (UNICAMP) |
| المصدر: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| بيانات النشر: | Elsevier BV, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Leaf water content, Citrus, Stomatal conductance, Nutrient solution, Plant Science, Leaf water, 01 natural sciences, 03 medical and health sciences, chemistry.chemical_compound, Biosynthesis, Gene expression, Abscisic acid, Ecology, Evolution, Behavior and Systematics, fungi, food and beverages, REGULADORES DE CRESCIMENTO VEGETAL, NCED genes, Horticulture, 030104 developmental biology, Phaseic acid, ABA, chemistry, Plant signalling, Water relations, Agronomy and Crop Science, Aluminum, 010606 plant biology & botany |
| الوصف: | Made available in DSpace on 2021-06-25T11:11:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-05-01 Aluminum (Al)-induced decrease in leaf hydration has been associated with low gas exchange, especially stomatal conductance (gs). However, the mechanisms explaining these responses are unclear. Citrus limonia was exposed to 0 and 1480 μM Al in nutrient solution for 90 days to test whether the low gs and leaf hydration in plants exposed to Al is associated with increased 9-cis-epoxycarotenoid dioxygenase (NCED) gene expression and abscisic acid (ABA) biosynthesis. Relative leaf water content (RWC), water potential (Ψw) and gas exchange in the leaves, as well as leaf and root ClNCED3, ClNCED1 and ClNCED5 expression and accumulation of ABA and its metabolites (phaseic acid, dihydrophaseic acid, (+)-7′-hydroxy-ABA and ABA-β-D-glucosyl ester) were measured. Aluminum up-regulated ClNCED3 and induced ABA accumulation in the roots before impairments in leaf water status (low Ψw, RWC and gs) could be observed. Leaf ABA concentration increased from 7 to 90 days and this could be partially explained by the up-regulation of ClNCED3, ClNCED1 and ClNCED5 in this organ. Stomatal closure occurred concomitantly with the increase of ABA concentration, and this result provides further evidence of the role of ABA modulation of plant hydration under Al stress. Programa de Pós-Graduação em Biologia Vegetal Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista UNESP, Av. 24-A, 1515 Departamento de Ciências Biológicas Escola Superior de Agricultura “Luiz de Queiróz” Universidade de São Paulo ESALQ-USP, Av. Pádua Dias, 11 Cranfield Soil and Agrifood Institute Cranfield University, College Rd Departamento de Botânica Instituto de Biocências Universidade de São Paulo USP, Rua do Matão, 14 Programa de Pós-Graduação em Genética e Biologia Molecular Centro de Biologia Molecular e Engenharia Genética Instituto de Biologia Universidade Estadual de Campinas Avenida Cândido Rondon Cidade Universitária Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista UNESP, Av. 24-A, 1515 Programa de Pós-Graduação em Biologia Vegetal Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista UNESP, Av. 24-A, 1515 Departamento de Biodiversidade Instituto de Biociências Universidade Estadual Paulista UNESP, Av. 24-A, 1515 |
| تدمد: | 0098-8472 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb53b919d1d4e7a93bab6be6632f537cTest https://doi.org/10.1016/j.envexpbot.2021.104404Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....bb53b919d1d4e7a93bab6be6632f537c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00988472 |
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