Publications by David S. Chatelet

Giant Flowers of Southern Magnolia Are Hydrated by the Xylem

Feild TS, Chatelet DS, Brodribb TJ. 2009. Giant flowers of southern Magnolia are hydrated by the xylem. Plant Physiology 150(3): 1587-1597.

Flowering depends upon long-distance transport to supply water for reproductive mechanisms to function. Previous physiological studies suggested that flowers operated uncoupled from stem xylem transport and received water primarily from the phloem. We demonstrate that the water balance…

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Fossil evidence for low gas exchange capacities for Early Cretaceous angiosperm leaves

Feild TS, Upchurch GR, Chatelet DS, Brodribb TJ, Grubbs KC, Samain MS, Wanke S. 2011. Fossil evidence for low gas exchange capacities for Early Cretaceous angiosperm leaves. Paleobiology 37 (2): 195-213

The photosynthetic gas exchange capacities of early angiosperms remain enigmatic. Nevertheless, many hypotheses about the causes of early angiosperm success and how angiosperms influenced Mesozoic ecosystem function hinge on understanding the maximum capacity for early angiosperm metabolism. We…

Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution

Feild, T. S., T. J. Brodribb, A. Iglesias, D. S. Chatelet, A. Baresch, G. R. Upchurch, Jr., B. Gomez, B. A. R. Mohr, C. Coiffard, J. Kvacek, and C. Jaramillo. 2011. Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution. Proceedings of the National Academy of Sciences 108 (20): 8363-8366.

The flowering plants that dominate modern vegetation possess leaf gas exchange potentials that far exceed those of all other living or extinct plants. The great divide in maximal ability to exchange CO2 for water between leaves of nonangiosperms…

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angiosperm evolution Ancestral xerophobia: a hypothesis on the whole plant ecophysiology of early angiosperms

Feild TS, Chatelet DS, Brodribb TJ. 2009. Ancestral xerophobia: a hypothesis on the whole plant ecophysiology of early angiosperms. Geobiology 7(2): 237-264.

Today, angiosperms are fundamental players in the diversity and biogeochemical functioning of the planet. Yet despite the omnipresence of angiosperms in today‚Äôs ecosystems, the basic evolutionary understanding of how the earliest angiosperms functioned remains unknown. Here we synthesize…

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