Next Article in Journal
Modified Methacrylate Hydrogels Improve Tissue Repair after Spinal Cord Injury
Next Article in Special Issue
24-Epibrassinolide Ameliorates Endogenous Hormone Levels to Enhance Low-Temperature Stress Tolerance in Cucumber Seedlings
Previous Article in Journal
Aldehyde Dehydrogenase 2 (ALDH2) in Rat Fatty Liver Cold Ischemia Injury
Previous Article in Special Issue
Cytokinin at the Crossroads of Abiotic Stress Signalling Pathways
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle

Modulation of Auxin Levels in Pollen Grains Affects Stamen Development and Anther Dehiscence in Arabidopsis

Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, RM 837-0186, Chile
Millennium Institute for Integrative Systems and Synthetic Biology (MIISSB), Santiago, Chile
Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)–Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223 Pozuelo de Alarcón, Spain
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(9), 2480;
Received: 26 July 2018 / Revised: 15 August 2018 / Accepted: 20 August 2018 / Published: 22 August 2018
PDF [3813 KB, uploaded 27 August 2018]


Auxin regulates diverse aspects of flower development in plants, such as differentiation of the apical meristem, elongation of the stamen, and maturation of anthers and pollen. It is known that auxin accumulates in pollen, but little information regarding the biological relevance of auxin in this tissue at different times of development is available. In this work, we manipulated the amount of free auxin specifically in developing pollen, using transgenic Arabidopsis lines that express the bacterial indole-3-acetic acid-lysine synthetase (iaaL) gene driven by a collection of pollen-specific promoters. The iaaL gene codes for an indole-3-acetic acid-lysine synthetase that catalyzes the conversion of free auxin into inactive indole-3-acetyl-l-lysine. The transgenic lines showed several abnormalities, including the absence of short stamina, a diminished seed set, aberrant pollen tubes, and perturbations in the synchronization of anther dehiscence and stamina development. This article describes the importance of auxin accumulation in pollen and its role in stamina and anther development. View Full-Text
Keywords: auxin; pollen; anther; iaaL; dehiscence auxin; pollen; anther; iaaL; dehiscence

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Salinas-Grenet, H.; Herrera-Vásquez, A.; Parra, S.; Cortez, A.; Gutiérrez, L.; Pollmann, S.; León, G.; Blanco-Herrera, F. Modulation of Auxin Levels in Pollen Grains Affects Stamen Development and Anther Dehiscence in Arabidopsis. Int. J. Mol. Sci. 2018, 19, 2480.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top