Journal of Cellular Physiology, Год журнала: 2024, Номер unknown

Опубликована: Сен. 6, 2024

Abstract Iron (Fe) storage in cereal seeds is the principal source of dietary Fe for humans. In maize ( Zea mays ), accumulation known to be negatively correlated with crop yield. Hence, it essential understand underlying mechanism, which crucial developing and breeding cultivars high yields concentrations kernels. Here, through successful application vitro kernel culture, we demonstrated that excess supply medium caused become collapsed lighter color, consistent those found yellow strip like 2 ysl2 , a small mutant), implicated role concentration development. Indeed, over‐accumulation endosperm inhibited abundance activity ADP‐glucose pyrophosphorylase (AGPase) development defect was alleviated by overexpression Briittle Bt2 encoding subunit AGPase) mutant. Imaging quantitative analyses reactive oxygen species (ROS) cell death showed stress‐induced ROS burst severe DNA damage cells. addition, have successfully identified candidate genes are associated iron homeostasis within kernel, as well upstream transcription factors regulate ZmYSL2 yeast one‐hybrid screening. Collectively, our study will provide insights into molecular mechanism accumulation‐regulated seed promote future efficient element corn improvement.

Язык: Английский