Two tropical conifers show strong growth and water-use efficiency responses to altered CO2concentration | Zendy

James W. Dalling | Zendy; Lucas A. Cernusak | Zendy; Klaus Winter | Zendy; Jorge Aranda | Zendy; Milton García | Zendy; Aurelio Virgo | Zendy; Alexander W. Cheesman | Zendy; Andrés Baresch | Zendy; Carlos Jaramillo | Zendy; Benjamin L. Turner | Zendy

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Two tropical conifers show strong growth and water-use efficiency responses to altered CO₂concentration

Author(s) -

James W. Dalling,

Lucas A. Cernusak,

Klaus Winter,

Jorge Aranda,

Milton García,

Aurelio Virgo,

Alexander W. Cheesman,

Andrés Baresch,

Carlos Jaramillo,

Benjamin L. Turner

Publication year - 2016

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcw162

Subject(s) - biology , podocarpaceae , water use efficiency , dominance (genetics) , biome , botany , tropics , rainforest , ecology , stomatal density , ecosystem , photosynthesis , biochemistry , gene

Conifers dominated wet lowland tropical forests 100 million years ago (MYA). With a few exceptions in the Podocarpaceae and Araucariaceae, conifers are now absent from this biome. This shift to angiosperm dominance also coincided with a large decline in atmospheric CO 2 concentration (c a ). We compared growth and physiological performance of two lowland tropical angiosperms and conifers at c a levels representing pre-industrial (280 ppm), ambient (400 ppm) and Eocene (800 ppm) conditions to explore how differences in c a affect the growth and water-use efficiency (WUE) of seedlings from these groups.

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