Altered stomatal patterning accompanies a trichome dimorphism in a natural population ofArabidopsis
| Autor: | Antony N. Dodd, Jiro Sugisaka, Hiroshi Kudoh, George Tunna, Mie N. Honjo, Noriane M. L. Simon, Sverre Aarseth Tunstad |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Plant growth Arabidopsis halleri stomata Plant Science 010603 evolutionary biology Biochemistry Genetics and Molecular Biology (miscellaneous) 01 natural sciences 03 medical and health sciences Arabidopsis Guard cell Botany environmental adaptation development Ecology Evolution Behavior and Systematics Original Research 030304 developmental biology 0303 health sciences Herbivore Ecology biology herbivory fungi food and beverages Environmental adaptation biology.organism_classification Trichome Sexual dimorphism Natural population growth QK1-989 010606 plant biology & botany |
| Zdroj: | Plant Direct, Vol 4, Iss 9, Pp n/a-n/a (2020) Plant Direct |
| Popis: | Trichomes are large epidermal cells on the surface of leaves that are thought to deter herbivores, yet the presence of trichomes can also negatively impact plant growth and reproduction. Stomatal guard cells and trichomes have shared developmental origins, and experimental manipulation of trichome formation can lead to changes in stomatal density. The influence of trichome formation upon stomatal development in natural populations of plants is currently unknown. Here, we show that a natural population ofArabidopsis hallerithat includes hairy (trichome-bearing) and glabrous (no trichomes) morphs has differences in stomatal density that are associated with this trichome dimorphism. We found that glabrous morphs had significantly greater stomatal density and stomatal index than hairy morphs. One interpretation is that this arises from a trade-off between the proportions of cells that have trichome and guard cell fates during leaf development. The differences in stomatal density between the two morphs might have impacts upon environmental adaptation, in addition to herbivory deterrence caused by trichome development. |
| Databáze: | OpenAIRE |
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