Wade, RN orcid.org/0000-0001-9572-8990, Seed, P, McLaren, E et al. (5 more authors) (2020) The morphogenesis of fast growth in plants. New Phytologist, 228 (4). pp. 1306-1315. ISSN 0028-646X
Abstract
Growth rate represents a fundamental axis of life history variation. Faster growth associated with C4 photosynthesis and annual life history has evolved multiple times, and the resulting diversity in growth is typically explained via resource acquisition and allocation. However, the underlying changes in morphogenesis remain unknown.
We conducted a phylogenetic comparative experiment with 74 grass species, conceptualising morphogenesis as the branching and growth of repeating modules. We aimed to establish whether faster growth in C4 and annual grasses, compared with C3 and perennial grasses, came from the faster growth of individual modules or higher rates of module initiation.
Morphogenesis produces fast growth in different ways in grasses using C4 and C3 photosynthesis, and in annual compared with perennial species. C4 grasses grow faster than C3 species through a greater enlargement of shoot modules and quicker secondary branching of roots. However, leaf initiation is slower and there is no change in shoot branching. Conversely, faster growth in annuals than perennials is achieved through greater branching and enlargement of shoots, and possibly faster root branching.
The morphogenesis of fast growth depends on ecological context, with C4 grasses tending to promote resource capture under competition, and annuals enhancing branching to increase reproductive potential.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Authors. New Phytologist © 2020 New Phytologist Foundation. This is an open access article under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) |
Keywords: | annual; C4 photosynthesis; development; grasses; growth; morphology; perennial; photosynthetic pathway |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Jan 2022 17:36 |
Last Modified: | 17 Jan 2022 17:36 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/nph.16892 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:182353 |
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