Richards, J. H. and Teeri, J. A. (1982) Re-evaluation of proposed C_4 photosynthetic characteristics in the genus Larix. Physiologia Plantarum, 55 (2). pp. 117-120. ISSN 1399-3054. doi:10.1111/j.1399-3054.1982.tb02273.x. https://resolver.caltech.edu/CaltechAUTHORS:20150430-135659316
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Abstract
It has been suggested previously that Japanese larch (Larix kaempferi) exhibits characteristics of C_4 photosynthesis. To further evaluate this suggestion, stable carbon isotope ratios were determined for leaf and bark tissue of Larix gmelini, L. kaempferi, L. laricina, L. Iyallii, L. occidentalis, and L. sibirica. All δ^(13)C values were more negative than –22‰. Short-term labeling with ^(14)CO_2 showed that phosphoglyceric acid and other phosphorylated compounds were the first products of photosynthesis in L. sibirica. Both of these results strongly suggest that the initial fixation of atmospheric CO_2 in these six Larix species is accomplished solely via the C_3 photosynthetic pathway.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1982 Physiologia Plantarum. Received 15 December, 1981; revised 11 February, 1982. We thank E. van Santen, D. Schoeller, P. Klein, T. Teeri, and R. Wyse for helpful discussion and technical assistance and E. A. Cosins for advice and laboratory space during first product extractions. This research was supported in part by the DeKalb Foundation, the National Science Foundation (DEB-8021270), and the National Institute of Health (AM 18741). | |||||||||
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| Subject Keywords: | C3 photosynthesis; δ13C | |||||||||
| Issue or Number: | 2 | |||||||||
| DOI: | 10.1111/j.1399-3054.1982.tb02273.x | |||||||||
| Record Number: | CaltechAUTHORS:20150430-135659316 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150430-135659316 | |||||||||
| Official Citation: | Richards, J. H. and Teeri, J. A. (1982), Re-evaluation of proposed C4 photosynthetic characteristics in the genus Larix. Physiologia Plantarum, 55: 117–120. doi: 10.1111/j.1399-3054.1982.tb02273.x | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 57124 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | INVALID USER | |||||||||
| Deposited On: | 01 May 2015 17:04 | |||||||||
| Last Modified: | 10 Nov 2021 21:08 |
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