Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F11%3A%230001652" target="_blank" >RIV/00023272:_____/11:#0001652 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1073/pnas.1014456108" target="_blank" >http://dx.doi.org/10.1073/pnas.1014456108</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.1014456108" target="_blank" >10.1073/pnas.1014456108</a>
Alternative languages
Result language
angličtina
Original language name
Fossil evidence for Cretaceous escalation in angiosperm leaf vein evolution
Original language description
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 CO(2) for water between leaves of nonangiosperms and angiosperms forms the mechanistic foundation for speculation about how angiosperms drove sweeping ecological and biogeo-chemical change during the Cretaceous. However, there is no empirical evidence that angiosperms evolved highly photosynthetically activeleaves during the Cretaceous. Using vein density (D(V)) measurements of fossil angiosperm leaves, we show that the leaf hydraulic capacities of angiosperms escalated several-fold during the Cretaceous. During the first 30 million years of angiosperm leaf evolution, angiosperm leaves exhibited uniformly low vein D(V) that overlapped the D(V) range of dominant Early Cretaceous ferns and gymnosperms. Fossil angiosperm vein densities reveal a subsequent biphasic increase in D(V). During the
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the National Academy of Sciences of the United States of America
ISSN
0027-8424
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
8363-8366
UT code for WoS article
000290719600058
EID of the result in the Scopus database
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