ArticleThe New phytologist2020
How grass keeps growing: an integrated analysis of hormonal crosstalk in the maize leaf growth zone.
Article in The New phytologist, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 19 citations in OpenAlex.
- Unlocking grass leaf development: foundations for tunable cereal design.The New phytologist · 2025Review
- Gibberellins: extending the Green Revolution.Journal of experimental botany · 2025Review
- Experimental analysis of genetic and environmental interactions on leaf elongation and reproductive development inAoB PLANTS · 2025Article
- Cellular dynamics in the maize leaf growth zone during recovery from chilling depends on the leaf developmental stage.Plant cell reports · 2024Article
- Roles of auxin pathways in maize biology.Journal of experimental botany · 2023Review
- Modeling reveals posttranscriptional regulation of GA metabolism enzymes in response to drought and cold.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
We studied the maize leaf to understand how long-distance signals, auxin and cytokinin, control leaf growth dynamics. We constructed a mathematical model describing the transport of these hormones along the leaf growth zone and their interaction with the local gibberellin (GA) metabolism in the control of cell division. Assuming gradually declining auxin and cytokinin supply at the leaf base, the model generated spatiotemporal hormone distribution and growth patterns that matched experimental data. At the cellular level, the model predicted a basal leaf growth as a result of cell division driven by auxin and cytokinin. Superimposed on this, GA synthesis regulated growth through the control of the size of the region of active cell division. The predicted hormone and cell length distributions closely matched experimental data. To correctly predict the leaf growth profiles and final organ size of lines with reduced or elevated GA production, the model required a signal proportional to the size of the emerged part of the leaf that inhibited the basal leaf growth driven by auxin and cytokinin. Excision and shading of the emerged part of the growing leaf allowed us to demonstrate that this signal exists and depends on the perception of light intensity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.