Guzmán-Hernández D. A., Barbosa-Martínez C., Villa-Hernández J. M., Pérez-Flores L. J., Redox imbalance accompanies loss of viability in seeds of two cacti species buried in situ, Seed Science Research, 2024, 34(1):1-9, doi: 10.1017/S0960258524000011
The authors compare viability and redox status in Escontria chiotilla and Stenocereus pruinosus seeds stored dry ex situ or buried in xerophytic shrubland soil. An experiment using seeds from the same harvest showed species differences in the timing of viability loss across rainy and dry seasons. Death was accompanied by an oxidative shift in the glutathione redox potential, whereas MDA and oxidized proteins had limited value as indicators of this process.