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dc.contributor.author
Zhang, Yong Jiang
dc.contributor.author
Cao, Kun Fang
dc.contributor.author
Sack, Lawren
dc.contributor.author
Li, Nan
dc.contributor.author
Wei, Xue Mei
dc.contributor.author
Goldstein, Guillermo Hernan
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dc.date.available
2019-10-04T20:10:07Z
dc.date.issued
2015-04
dc.identifier.citation
Zhang, Yong Jiang; Cao, Kun Fang; Sack, Lawren; Li, Nan; Wei, Xue Mei; et al.; Extending the generality of leaf economic design principles in the cycads, an ancient lineage; Wiley Blackwell Publishing, Inc; New Phytologist; 206; 2; 4-2015; 817-829
dc.identifier.issn
0028-646X
dc.identifier.uri
http://hdl.handle.net/11336/85276
dc.description.abstract
Summary: Cycads are the most ancient lineage of living seed plants, but the design of their leaves has received little study. We tested whether cycad leaves are governed by the same fundamental design principles previously established for ferns, conifers and angiosperms, and characterized the uniqueness of this relict lineage in foliar trait relationships. Leaf structure, photosynthesis, hydraulics and nutrient composition were studied in 33 cycad species from nine genera and three families growing in two botanical gardens. Cycads varied greatly in leaf structure and physiology. Similarly to other lineages, light-saturated photosynthetic rate per mass (Am) was related negatively to leaf mass per area and positively to foliar concentrations of chlorophyll, nitrogen (N), phosphorus and iron, but unlike angiosperms, leaf photosynthetic rate was not associated with leaf hydraulic conductance. Cycads had lower photosynthetic N use efficiency and higher photosynthetic performance relative to hydraulic capacity compared with other lineages. These findings extend the relationships shown for foliar traits in angiosperms to the cycads. This functional convergence supports the modern synthetic understanding of leaf design, with common constraints operating across lineages, even as they highlight exceptional aspects of the biology of this key relict lineage.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CYCAS
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CYCADALES
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FUNCTIONAL CONVERGENCE
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GYMNOSPERMS
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LEAF ECONOMIC SPECTRUM
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LEAF HYDRAULIC CONDUCTANCE
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PHOTOSYNTHETIC CAPACITY
dc.subject
TRADE-OFF
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Extending the generality of leaf economic design principles in the cycads, an ancient lineage
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-04T18:39:08Z
dc.journal.volume
206
dc.journal.number
2
dc.journal.pagination
817-829
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Zhang, Yong Jiang. Chinese Academy of Sciences; República de China. Harvard University; Estados Unidos
dc.description.fil
Fil: Cao, Kun Fang. Guangxi University; China
dc.description.fil
Fil: Sack, Lawren. University of California at Los Angeles; Estados Unidos
dc.description.fil
Fil: Li, Nan. Chinese Academy of Sciences; República de China
dc.description.fil
Fil: Wei, Xue Mei. Chinese Academy of Sciences; República de China
dc.description.fil
Fil: Goldstein, Guillermo Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.journal.title
New Phytologist
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/nph.13274
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.13274
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