期刊
DEVELOPMENT
卷 143, 期 18, 页码 3230-3237出版社
COMPANY OF BIOLOGISTS LTD
DOI: 10.1242/dev.131888
关键词
Apical meristem; Leaf dorsiventrality; Adaxial-abaxial; miRNA; Pattern formation
资金
- US National Science Foundation [IBN-0615752, IOS-1355018]
- Alexander von Humboldt Professorship
- SystemsX.ch
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1238142] Funding Source: National Science Foundation
The differentiation of a leaf - from its inception as a semicircular bulge on the surface of the shoot apical meristem into a flattened structure with specialized upper and lower surfaces - is one of the most intensely studied processes in plant developmental biology. The large body of contemporary data on leaf dorsiventrality has its origin in the pioneering experiments of Ian Sussex, who carried out these studies as a PhD student in the early 1950s. Here, we review his original experiments in their historical context and describe our current understanding of this surprisingly complex process. Finally, we postulate possible candidates for the 'Sussex signal' - the elusive meristem-derived factor that first ignited interest in this important developmental problem.
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