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Proteomes 2017, 5(1), 7; doi:10.3390/proteomes5010007

Effects of Al3+ and La3+ Trivalent Metal Ions on Tomato Fruit Proteomes

1
Department of Agricultural and Environmental Sciences, College of Agriculture, Human and Natural Sciences, Tennessee State University, 3500 John Merritt Blvd, Nashville, TN 37209, USA
2
R.W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY 14853, USA
*
Authors to whom correspondence should be addressed.
Academic Editors: M. Margarida Oliveira, Isabel A. Abreu and Jacek R. Wisniewski
Received: 21 November 2016 / Revised: 26 January 2017 / Accepted: 7 February 2017 / Published: 11 February 2017
(This article belongs to the Special Issue Proteomics in Plant–Environment Interactions)
View Full-Text   |   Download PDF [1847 KB, uploaded 11 February 2017]   |  

Abstract

The tomato (Solanum lycopersicum) ripening process from mature green (MG) to turning and then to red stages is accompanied by the occurrences of physiological and biochemical reactions, which ultimately result in the formation of the flavor, color and texture of ripe fruits. The two trivalent metal ions Al3+ and La3+ are known to induce different levels of phytotoxicity in suppressing root growth. This paper aims to understand the impacts of these two metal ions on tomato fruit proteomes. Tomato ‘Micro-Tom’ plants were grown in a hydroponic culture system supplemented with 50 μM aluminum sulfate (Al2 (SO4)3.18H2O) for Al3+ or La2(SO4)3 for La3+. Quantitative proteomics analysis, using isobaric tags for relative and absolute quantitation, were performed for fruits at MG, turning and red stages. Results show that in MG tomatoes, proteins involved in protein biosynthesis, photosynthesis and primary carbohydrate metabolisms were at a significantly lower level in Al-treated compared to La-treated plants. For the turning and red tomatoes, only a few proteins of significant differences between the two metal treatments were identified. Results from this study indicate that compared to La3+, Al3+ had a greater influence on the basic biological activities in green tomatoes, but such an impact became indistinguishable as tomatoes matured into the late ripening stages. View Full-Text
Keywords: secondary metabolites; stress proteins; cell wall; photosynthesis; iTRAQ; functional pathways secondary metabolites; stress proteins; cell wall; photosynthesis; iTRAQ; functional pathways
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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).

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MDPI and ACS Style

Sangireddy, S.; Okekeogbu, I.; Ye, Z.; Zhou, S.; Howe, K.J.; Fish, T.; Thannhauser, T.W. Effects of Al3+ and La3+ Trivalent Metal Ions on Tomato Fruit Proteomes. Proteomes 2017, 5, 7.

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