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. 2017 Feb 8;8:126. doi: 10.3389/fpls.2017.00126

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Copyright © 2017 Merelo, Agustí, Arbona, Costa, Estornell, Gómez-Cadenas, Coimbra, Gómez, Pérez-Amador, Domingo, Talón and Tadeo.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Effect of ethylene and 1-aminocyclopropane- 1-carboxylic acid (ACC) on citrus fruit abscission. (A) Abscission kinetics of Washington Navel fruits non-treated or treated with ethylene and Ricalate Navel fruits non-treated or treated with ACC. The results are means of 10 fruits ± SE. (B,C) Phloroglucinol staining for lignin in the AZ-C of Washington Navel fruits after ethylene treatment (B) and Ricalate Navel fruits after ACC treatment (C). Dashed line, abscission zone C; , lignin deposition (phloroglucinol); FR, fruit rind; FD, floral disc; SP, sepals; VB, vascular bundles; P, parenchyma.

Inline graphic — Effect of ethylene and 1-aminocyclopropane- 1-carboxylic acid (ACC) on citrus fruit abscission. (A) Abscission kinetics of Washington Navel fruits non-treated or treated with ethylene and Ricalate Navel fruits non-treated or treated with ACC. The results are means of 10 fruits ± SE. (B,C) Phloroglucinol staining for lignin in the AZ-C of Washington Navel fruits after ethylene treatment (B) and Ricalate Navel fruits after ACC treatment (C). Dashed line, abscission zone C; , lignin deposition (phloroglucinol); FR, fruit rind; FD, floral disc; SP, sepals; VB, vascular bundles; P, parenchyma.