Mamani-Huarcaya, B.M.; Navarro-Gochicoa, M.T.; Herrera-Rodríguez, M.B.; Camacho-Cristóbal, J.J.; Ceacero, C.J.; Fernández Cutire, Ó.; González-Fontes, A.; Rexach, J. Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity. Plants2023, 12, 2322.
Mamani-Huarcaya, B.M.; Navarro-Gochicoa, M.T.; Herrera-Rodríguez, M.B.; Camacho-Cristóbal, J.J.; Ceacero, C.J.; Fernández Cutire, Ó.; González-Fontes, A.; Rexach, J. Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity. Plants 2023, 12, 2322.
Mamani-Huarcaya, B.M.; Navarro-Gochicoa, M.T.; Herrera-Rodríguez, M.B.; Camacho-Cristóbal, J.J.; Ceacero, C.J.; Fernández Cutire, Ó.; González-Fontes, A.; Rexach, J. Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity. Plants2023, 12, 2322.
Mamani-Huarcaya, B.M.; Navarro-Gochicoa, M.T.; Herrera-Rodríguez, M.B.; Camacho-Cristóbal, J.J.; Ceacero, C.J.; Fernández Cutire, Ó.; González-Fontes, A.; Rexach, J. Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity. Plants 2023, 12, 2322.
Abstract
Boron (B) toxicity is an important stress that negatively affects maize yield and quality production. The excessive B content in agricultural lands is a growing problem due to the increase in arid and semi-arid areas because of climate change. Recently, two Peruvian maize landraces, Sama and Pachía, were physiologically characterized based on their tolerance to B toxicity, the former being more tolerant to B excess than Pachía. However, many aspects regarding the molecular mechanisms of these two maize landraces against B toxicity are still unknown. In this study, a leaf proteomic analysis of Sama and Pachía was performed. Out of a total of 2793 proteins identified only 303 proteins were differentially accumulated. Functional analysis indicated that many of these proteins are involved in transcription and translation processes, amino acids metabolism, photosynthesis, carbohydrate metabolism, protein degradation, and protein stabilization and folding. Compared to Sama, Pachía had a higher number of differentially expressed proteins related to protein degradation, and transcription and translation processes under B toxicity conditions, which might reflect the greater protein damage caused by B toxicity in Pachía. Our results suggest that higher tolerance to B toxicity of Sama can be attributed to more stable photosynthesis that would avoid damage caused by stromal over-reduction under this stress condition.
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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.
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