Abstract
Can one leaf tell another what to do? Lake et al. report that indeed, older leaves of Arabidopsis thaliana seem to influence the response of younger leaves to atmospheric CO2 concentration. Both mature leaves and new leaves exhibited a decrease in stomata density when only the mature leaves were exposed to high CO2. The authors suggest that a long-distance signal gets transmitted from older to younger leaves. It is thought that new leaves cannot respond appropriately to changes in atmospheric CO2.J. A. Lake, W. P. Quick, D. J. Beerling, F. I. Woodward, BRS1, a serine carboxypeptidase, signals from mature to new leaves. Nature 411, 154 (2001). [Online Journal]
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Claims 2
Claim · model-written summary
Mature and new Arabidopsis leaves showed reduced stomatal density when only mature leaves were exposed to high CO2.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Organ / stage
- mature leaves and new leavese0
- Treatment
- high CO2e0
- Outcome
- stomata densitye0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both mature leaves and new leaves exhibited a decrease in stomata density when only the mature leaves were exposed to high CO2”
e1“Arabidopsis thaliana”
Claim · model-written summary
The authors proposed a signal transmitted from older to younger leaves.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Outcome
- long-distance signale0
- Qualifier
- from older to younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The authors suggest that a long-distance signal gets transmitted from older to younger leaves”
e1“Arabidopsis thaliana”