Drought stress is a serious threat to the germination of plant seeds and growth seedlings. Melatonin has been proven play an important role in alleviating stress. However, its effect on seed under drought conditions still poorly understood. Therefore, we studied effects melatonin rice physiological characteristics Rice were treated with different concentrations (i.e., 0, 20, 100, 500 μM) was si...

Salinization is increasing on a global scale, decreasing average yields for most major crop plants. Investigations into salt resistance have, unfortunately, mainly been focused on conventional crops, with few studies screening the potential of available halophytes as new crops. This study has been carried out to investigate the mechanisms used by quinoa, a facultative halophytic species, in ord...

The activation of the nucleolus of primary root cells of Sinapis alba embryos during the first 72 h of germination was monitored by autoradiographic, ultrastructural and microstereological methods. Autoradiographs showed that within 48 h, the nucleolus progressively resumed the capacity to synthesize pre-rRNA molecules at a high rate. In quiescent embryos the nucleolus was small, compact and co...