Stomatal development: focusing on the grasses

作者：Christopher Hepworth, Robert S. Caine, Emily Harrison, Jen Sloan, Julie E. Gray · 发表于：Current Opinion in Plant Biology · 年份：2017 · DOI：10.1016/j.pbi.2017.07.009 · 被引用次数：136 · 研究领域：Plant Molecular Biology Research、Plant Reproductive Biology、Plant nutrient uptake and metabolism

The development and patterning of stomata in the plant epidermis has emerged as an ideal system for studying fundamental plant developmental processes. Over the past twenty years most studies of stomata have used the model dicotyledonous plant Arabidopsis thaliana. However, cultivated monocotyledonous grass (or Gramineae) varieties provide the majority of human nutrition, and future research into grass stomata could be of critical importance for improving food security. Recent studies using Brachypodium distachyon, Hordeum vulgare (barley) and Oryza sativa (rice) have led to the identification of the core transcriptional regulators essential for stomatal initiation and progression in grasses, and begun to unravel the role of secretory signaling peptides in controlling stomatal developmental. This review revisits how stomatal developmental unfolds in grasses, and identifies key ontogenetic steps for which knowledge of the underpinning molecular mechanisms remains outstanding.