ArticleJournal of experimental botany2016
Carbon isotope discrimination as a diagnostic tool for C4 photosynthesis in C3-C4 intermediate species.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 35 citations in OpenAlex.
- How evolution repeatedly builds complexity: a case study with CThe New phytologist · 2025Article
- Stable Carbon and Nitrogen Isotope Signatures in Three Pondweed Species-A Case Study of Rivers and Lakes in Northern Poland.Plants (Basel, Switzerland) · 2025Article
- Multiple Roles of Glycerate Kinase-From Photorespiration to Gluconeogenesis, CInternational journal of molecular sciences · 2024Review
- The Evolution of C4 Photosynthesis in Flaveria (Asteraceae): Insights from the Flaveria linearis Complex.Plant physiology · 2023Article
- Desiccation of the leaf mesophyll and its implications for COPlant, cell & environment · 2022Article
- Russ Monson and the evolution of COecologia · 2021Review
- Dynamic changes of genome sizes and gradual gain of cell-specific distribution of CThe plant genome · 2021Article
- Coleataenia prionitis, a CPhotosynthesis research · 2021Article
- Evolutionary Convergence of CFrontiers in plant science · 2020Article
- Operating at the very low end of the crassulacean acid metabolism spectrum: Sesuvium portulacastrum (Aizoaceae).Journal of experimental botany · 2019Article
- Transgenic maize phosphoenolpyruvate carboxylase alters leaf-atmosphere COPhotosynthesis research · 2019Article
- C4-like photosynthesis and the effects of leaf senescence on C4-like physiology in Sesuvium sesuvioides (Aizoaceae).Journal of experimental botany · 2019Article
- Some like it hot: the physiological ecology of COecologia · 2018Article
- Unique photosynthetic phenotypes in Portulaca (Portulacaceae): C3-C4 intermediates and NAD-ME C4 species with Pilosoid-type Kranz anatomy.Journal of experimental botany · 2017Article
- Effects of reduced carbonic anhydrase activity on CO2 assimilation rates in Setaria viridis: a transgenic analysis.Journal of experimental botany · 2017Article
- Article
- Experimental botany in 2017.Journal of experimental botany · 2017Article
- Molecular phylogeny and forms of photosynthesis in tribe Salsoleae (Chenopodiaceae).Journal of experimental botany · 2017Article
- Tracking the evolutionary rise of C4 metabolism.Journal of experimental botany · 2016Article
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2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The presence and activity of the C4 cycle in C3-C4 intermediate species have proven difficult to analyze, especially when such activity is low. This study proposes a strategy to detect C4 activity and estimate its contribution to overall photosynthesis in intermediate plants, by using tunable diode laser absorption spectroscopy (TDLAS) coupled to gas exchange systems to simultaneously measure the CO2 responses of CO2 assimilation (A) and carbon isotope discrimination (Δ) under low O2 partial pressure. Mathematical models of C3-C4 photosynthesis and Δ are then fitted concurrently to both responses using the same set of constants. This strategy was applied to the intermediate species Flaveria floridana and F. brownii, and to F. pringlei and F. bidentis as C3 and C4 controls, respectively. Our results support the presence of a functional C4 cycle in F. floridana, that can fix 12-21% of carbon. In F. brownii, 75-100% of carbon is fixed via the C4 cycle, and the contribution of mesophyll Rubisco to overall carbon assimilation increases with CO2 partial pressure in both intermediate plants. Combined gas exchange and Δ measurement and modeling is a powerful diagnostic tool for C4 photosynthesis.
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