Claim · model-written summary
Photosynthesis in the third pair of Perilla leaves declined after expansion and more rapidly near abscission.
- Taxon
- Perilla frutescens
Perilla frutescense0 - Organ / stage
- third pair of leavese0
- Outcome
- rate of photosynthesise0
- Direction
- declinede0
- Qualifier
- approximately I week from abscissione0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of photosynthesis in the third pair of leaves of Perilla frutescens declined gradually from the time of completion of expansion of the leaves until approximately I week from abscission when there was a more rapid decrease”
Title
PHOTOSYNTHESIS AND RESPIRATION IN RELATION TO LEAF AGE IN PERILLA FRUTESCENS (L.) BRITT
K. HARDWICK; M. WOOD; H. W. WOOLHOUSE New Phytologist 1968. doi:10.1111/j.1469-8137.1968.tb05456.x
Other claims from this paper (6)
- Observation The photosynthetic decline began proximally and spread distally across the lamina.
- Observation Leaf respiration stayed approximately constant until a transient rise and final fall near abscission.
- Association Leaf RNA and protein content declined along with photosynthesis.
- Observation Leaf chlorophyll content did not change during the gradual photosynthetic decline.
- Observation Carbon-14 incorporation measurements showed a similar change in photosynthesis.
- Observation Label incorporation into protein declined faster than total leaf protein content.