Metabolomic analyses during chayote (Sechium edule var. virens levis) seed germination under the influence of growth regulators
The fruit of chayote (Sechium edule) has a recalcitrant seed, as a consequence, viviparism (seed germination inside the fruit) occurs in the first 13 days after harvest. However, at the moment no phytohormone–dependent metabolic changes have been described that would allow us to understand the hormo...
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Published in: | Current plant biology Vol. 40; p. 100407 |
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Abstract | The fruit of chayote (Sechium edule) has a recalcitrant seed, as a consequence, viviparism (seed germination inside the fruit) occurs in the first 13 days after harvest. However, at the moment no phytohormone–dependent metabolic changes have been described that would allow us to understand the hormonal relationship during germination. Untargeted and targeted metabolomic analyses were performed on chayote seed treated with plant growth regulators, evaluated in fruits at 7 and 10 days after harvest. Exogenous application of 2–chloroethylphosphonic acid (ethylene releaser) and gibberellic acid3 accelerated germination and viviparism, while auxins and abscisic acid delayed them. Metabolic pathways and possible key metabolites regulating germination were identified, including ethylene, gibberellins, auxins and abscisic acid. This study suggests a likely hormone interaction model during chayote seed germination.
•Gibberellins and ethylene promoted early seed germination in chayote fruit.•Auxins and abscisic acid delay the basal opening of the fruit.•Hormonal relationships that regulate viviparism are analyzed by metabolomic tools. |
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AbstractList | The fruit of chayote (Sechium edule) has a recalcitrant seed, as a consequence, viviparism (seed germination inside the fruit) occurs in the first 13 days after harvest. However, at the moment no phytohormone–dependent metabolic changes have been described that would allow us to understand the hormonal relationship during germination. Untargeted and targeted metabolomic analyses were performed on chayote seed treated with plant growth regulators, evaluated in fruits at 7 and 10 days after harvest. Exogenous application of 2–chloroethylphosphonic acid (ethylene releaser) and gibberellic acid3 accelerated germination and viviparism, while auxins and abscisic acid delayed them. Metabolic pathways and possible key metabolites regulating germination were identified, including ethylene, gibberellins, auxins and abscisic acid. This study suggests a likely hormone interaction model during chayote seed germination.
•Gibberellins and ethylene promoted early seed germination in chayote fruit.•Auxins and abscisic acid delay the basal opening of the fruit.•Hormonal relationships that regulate viviparism are analyzed by metabolomic tools. |
ArticleNumber | 100407 |
Author | Guerrero–Analco, José A. Cadena–Iñiguez, Jorge San Miguel-Chávez, Rubén Ramírez–Rodas, Yeimy C. Peña–Valdivia, Cecilia B. Monribot–Villanueva, Juan L. Arévalo–Galarza, Ma. de Lourdes Soto–Hernández, Ramón M. |
Author_xml | – sequence: 1 givenname: Yeimy C. surname: Ramírez–Rodas fullname: Ramírez–Rodas, Yeimy C. organization: Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias. C.E. Valles Centrales, C. Melchor Ocampo 7, Sto. Domingo Barrio Bajo, Etla, Oaxaca 68200, México – sequence: 2 givenname: Ma. de Lourdes surname: Arévalo–Galarza fullname: Arévalo–Galarza, Ma. de Lourdes email: larevalo@colpos.mx organization: Colegio de Postgraduados, Campus Montecillo, Km. 36.5 Carretera México–Texcoco, Montecillo 56230, México – sequence: 3 givenname: Jorge surname: Cadena–Iñiguez fullname: Cadena–Iñiguez, Jorge organization: Colegio de Postgraduados, Campus San Luis Potosí, San Iturbide, No. 73, Salinas de Hidalgo, San Luis Potosí 78600, México – sequence: 4 givenname: Ramón M. surname: Soto–Hernández fullname: Soto–Hernández, Ramón M. organization: Colegio de Postgraduados, Campus Montecillo, Km. 36.5 Carretera México–Texcoco, Montecillo 56230, México – sequence: 5 givenname: Cecilia B. surname: Peña–Valdivia fullname: Peña–Valdivia, Cecilia B. organization: Colegio de Postgraduados, Campus Montecillo, Km. 36.5 Carretera México–Texcoco, Montecillo 56230, México – sequence: 6 givenname: José A. surname: Guerrero–Analco fullname: Guerrero–Analco, José A. organization: Red de Estudios Moleculares Avanzados, Instituto de Ecología, A. C., Clúster Científico y tecnológico Biomimic®, Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91073, México – sequence: 7 givenname: Juan L. surname: Monribot–Villanueva fullname: Monribot–Villanueva, Juan L. organization: Red de Estudios Moleculares Avanzados, Instituto de Ecología, A. C., Clúster Científico y tecnológico Biomimic®, Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91073, México – sequence: 8 givenname: Rubén surname: San Miguel-Chávez fullname: San Miguel-Chávez, Rubén organization: Colegio de Postgraduados, Campus Montecillo, Km. 36.5 Carretera México–Texcoco, Montecillo 56230, México |
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Keywords | Abscisic acid Viviparism Auxins Metabolomics analyses Ethylene Seed germination |
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Title | Metabolomic analyses during chayote (Sechium edule var. virens levis) seed germination under the influence of growth regulators |
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