编辑推荐： 土壤盐渍化严重威胁作物产量。研究人员对耐盐籽粒苋（Amaranthus hypochondriacus）开展在 100/250 mM NaCl 胁迫下的转录组和生理分析，发现其不同盐胁迫下的适应机制及关键基因。这为提升作物在盐渍环境的适应性提供关键思路。

The morphology and anatomy of bracteoles were surveyed in 20 Amaranthus taxa in order to determine their taxonomic significance and role. Three types of bracteoles were distinguished: spinose, ...