Carbon isotope discrimination and the integration of carbon assimilation pathways in terrestrial CAM plants | Zenodo Skip to main Communities My dashboard Log in Sign up Bat Literature Project Part of Biodiversity Literature Repository Published 1992 | Version v1 Journal article Open Carbon isotope discrimination and the integration of carbon assimilation pathways in terrestrial CAM plants Authors/Creators Griffiths, H. Description (Uploaded by Plazi for the Bat Literature Project) Measurement of carbon isotope discrimination (A) of organic plant material integrates the combination of C4 and C3 carboxylation processes during the phases of CAM through dark and light periods. These processes are tempered by environmental conditions which regulate CAM activity at the molecular, biochemical and ecological level. The factors contributing to short-term changes in A are discussed in terms of the day-night changes in metabolite pools and integration via on-line, instantaneous discrimination techniques. Thus, the isotope signature of newly fixed carbon in malic acid reflects the balance between diffusion and carboxylation limitation together with direct and indirect effects of respiratory metabolism. Leakage of CO2 during decarboxyiation leads to greater discrimination being expressed than is predicted from existing models. Over the timescales of seasonal growth and productivity, most constitutive CAM and C3-CAM intermediate plants show little variation in A (2-4%o). The changes induced by developmental and environmental signals and genetic regulation of CAM are compared for stem and leaf succulents. The role of CAM as a potentially highly productive photosynthetic pathway is contrasted with the induction of CAM as a maintenance mechanism in response to environmental stresses. Analyses of A have already contributed much to our understanding of the distribution and regulation of CAM, and in turn can also be used to analyse phylogenetic relationships and the origins of CAM as determined from palaoecological evidence. Files Griffiths - 1992 - Carbon isotope discrimination and the integration of carbon assimilation pathways in terrestrial CAM.pdf Files (4.3 MB) Name Size Download all Griffiths - 1992 - Carbon isotope discrimination and the integration of carbon assimilation pathways in terrestrial CAM.pdf md5:8746e1e89f0f8c9886f81fd661c5653b 4.3 MB Preview Download Additional details Identifiers URL hash://md5/8746e1e89f0f8c9886f81fd661c5653b URN urn:lsid:zotero.org:groups:5435545:items:7J2DNYQJ DOI 10.1111/j.1365-3040.1992.tb01655.x Related works Has version hash://md5/8746e1e89f0f8c9886f81fd661c5653b (URL) hash://sha256/78a72b49d4d026e616555c916adcd57b14762ac5c5aeabc5fcf648b51ae73ef8 (URL) Is compiled by Software: 10.5281/zenodo.1410543 (DOI) Is derived from zotero://select/groups/5435545/items/7J2DNYQJ (URL) https://zotero.org/groups/5435545/items/7J2DNYQJ (URL) https://linker.bio/cut:hash://md5/bd73f4923c6928eb0af08c91aebcee69!/b333580-336062 (URL) Is part of hash://md5/0157e8ec3f1f8eb877e7b6cd6fde26bc (URL) Biodiversity Kingdom Animalia Phylum Chordata Class Mammalia Order Chiroptera 18 Views 10 Downloads Show more details All versions This version Views Total views 18 18 Downloads Total downloads 10 10 Data volume Total data volume 43.2 MB 43.2 MB More info on how stats are collected.... Versions External resources Indexed in OpenAIRE Communities Keywords and subjects Keywords Biodiversity Mammalia Chiroptera Chordata Animalia bats bat Details DOI DOI Badge DOI 10.5281/zenodo.19669371 Markdown [](https://doi.org/10.5281/zenodo.19669371) reStructuredText .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.19669371.svg :target: https://doi.org/10.5281/zenodo.19669371 HTML <a href="https://doi.org/10.5281/zenodo.19669371"><img src="https://zenodo.org/badge/DOI/10.5281/zenodo.19669371.svg" alt="DOI"></a> Image URL https://zenodo.org/badge/DOI/10.5281/zenodo.19669371.svg Target URL https://doi.org/10.5281/zenodo.19669371 Resource type Journal article Publisher Zenodo Published in Plant, Cell & Environment, 15(9), 1051-1062, 1992. Rights License Creative Commons Attribution 4.0 International The Creative Commons Attribution license allows re-distribution and re-use of a licensed work on the condition that the creator is appropriately credited. Read more Citation Export Technical metadata Created April 20, 2026 Modified April 22, 2026 Jump up About About Policies Infrastructure Principles Projects Roadmap Contact Blog Blog Support Help FAQ Developers REST API OAI-PMH Contribute GitHub Donate Funded by Powered by CERN Data Centre & InvenioRDM Status Privacy policy Cookie policy Terms of Use This site uses cookies. Find out more on how we use cookies Accept all cookies Accept only essential cookies