RT Journal Article
T1 Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity
A1 Mamani-Huarcaya, Betty Maribel
A1 Navarro-Gochicoa, María Teresa
A1 Herrera Rodríguez, María Begoña
A1 Camacho-Cristóbal, Juan José
A1 Ceacero, Carlos Juan
A1 Fernández Cutire, Óscar
A1 González-Fontes, Agustín
A1 Rexach, Jesús
K1 Boron toxicity
K1 Proteomic analysis
K1 Maize landrace
K1 Zea mays
AB Boron (B) toxicity is an important stressor that negatively affects maize yield and the quality of the produce. 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 acid 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 the higher tolerance to B toxicity of Sama can be attributed to more stable photosynthesis, which can prevent damage caused by stromal over-reduction under this stress condition.
YR 2023
FD 2023-06-15
LK http://hdl.handle.net/10433/16744
UL http://hdl.handle.net/10433/16744
LA en
NO Plants 2023, 12, 2322. https://doi.org/10.3390/plants12122322
NO Departamento de Fisiología, Anatomía y Biología Celular, Universidad Pablo de Olavide
DS RIO
RD May 7, 2026