Universal hydraulics of the flowering plants: vessel diameter scales with stem length across angiosperm lineages, habits and climates

Olson, Mark E.; Anfodillo, Tommaso; Rosell, Julieta A.; Petit, Giai; Crivellaro, Alan; Isnard, Sandrine; León-Gómez, Calixto; Alvarado-Cárdenas, Leonardo O.; Castorena, Matiss

doi:10.1111/ele.12302

Cited by 238 publications

(272 citation statements)

References 50 publications

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“…change radially from the pith to the bark and axially from the base to the crown along the main stem in Picea glauca Yemele et al 2015) and other plant species (Anfodillo et al 2006;Olson et al 2014), suggesting that the process of cell growth changes with tree age or height. Indeed, an increase in the duration of the cell expansion phase has been detected from the crown to the base along the main stem in Picea abies (Anfodillo et al 2012).…”

Section: Communicated By F Gugerlimentioning

confidence: 99%

Transcriptome analysis provides insights into wood formation during larch tree aging

Yang

Zhang

et al. 2017

Tree Genetics & Genomes

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Tree age affects wood formation and yield. However, the underlying mechanisms are poorly understood, particularly at the molecular level. In this study, we investigated the transcriptomic changes of the uppermost main stems of Larix kaempferi in an entire rotation period using the RNA-Seq method. In total, ∼151 million reads were obtained from the stems of 1-, 2-, 5-, 10-, 25-, and 50-year-old L. kaempferi trees. Combining these with the published Illumina sequencing reads, 299,637 assembled transcripts were generated, of which 161,232 were annotated. Time series expression profiling identified 12,927 transcripts as differentially expressed genes (DEGs); function enrichment analysis of these DEGs showed that 459 gene ontology terms in the biological process category were enriched. These terms were associated with the processes of wood formation, such as cell differentiation, growth and death, and its hormonal regulation. Based on the expression patterns of L. kaempferi homologues of genes associated with ethylene, calcium, and cell wall expansion and synthesis, the regulatory network of tracheid growth was outlined. Altogether, the comparative transcriptomic analysis reported here demonstrated the molecular aspects of aging effects on L. kaempferi wood formation. The identification of genes involved in the regulatory network of tracheid growth provides a means of investigating the regulation of wood formation in gymnosperm trees and also offers potential targets for genetic manipulation to improve the properties of xylem fibers.

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Section: Communicated By F Gugerlimentioning

confidence: 99%

Transcriptome analysis provides insights into wood formation during larch tree aging

Yang

Zhang

et al. 2017

Tree Genetics & Genomes

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“…Recent studies highlighted the importance of the widening trend of the xylem conduits towards the stem base on hydraulic conductivity measurements [78]. Such a universal configuration of the xylem architecture [79,80] predicts that conduits should widen from stem/branch tip to the base, and ultimately result in an increase of the hydraulic conductivity. On the other hand, xylem-conduit adjustments in number and size of the conduits have been reported for angiosperms [81] and conifers [82] in order to avoid possible damages at the expenses of modifying the potential conductivity.…”

Section: Contrasting Hydraulic Strategies Among the Study Speciesmentioning

confidence: 99%

Responses of Contrasting Tree Functional Types to Air Warming and Drought

Martínez-Sancho

Navas

Seidel

et al. 2017

Forests

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Climate change-induced rise of air temperatures and the increase of extreme climatic events, such as droughts, will largely affect plant growth and hydraulics, leading to mortality events all over the globe. In this study, we investigated the growth and hydraulic responses of seedlings of contrasting functional types. Pinus sylvestris, Quercus spp. and Castanea sativa seedlings were grown in a common garden experiment under four treatments: control, air warming, drought and their combination during two consecutive growing periods. Height and diameter increments, stomatal conductance and stem water potentials were measured during both growing seasons. Additionally, hydraulic parameters such as xylem-specific native and maximum hydraulic conductivities, and native percentage of loss of conductivity were measured at the end of the entire experiment. Our results clearly pointed to different adaptive strategies of the studied species. Scots pine displayed a relatively isohydric behavior with a strict stomata control prohibiting native embolism whereas sweet chestnut and oak as relatively anisohydric species displayed an increased loss of native conductivity as a results of low water potentials. Seasonal timing of shoot and diameter growth also differed among functional types influencing drought impacts. Additionally, the possibility of embolism reversal seemed to be limited under the study conditions.

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“…All of the specimens are diffuse-porous, and only two (UF-P 63106 and UF-P 63120) have indistinct growth rings marked by narrow, thick-walled fibers, that may be annual based on the width and complacency. Some of the dicot woods examined in transverse section (six out of 38) have very large (>200 μm) mean vessel diameters, a character state typical of large canopy trees in tropical forests [23–25]. Most of the woods examined in longitudinal section (22 out of 24) have simple perforation plates and many of the woods (11 out of 38) have elaborate conformations of axial parenchyma (e.g., aliform, confluent, or wide bands).…”

Section: Paleobotanymentioning

confidence: 99%

Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama

MacFadden¹,

Jones²,

Jud³

et al. 2017

PLoS ONE

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The late Miocene was an important time to understand the geological, climatic, and biotic evolution of the ancient New World tropics and the context for the Great American Biotic Interchange (GABI). Despite this importance, upper Miocene deposits containing diverse faunas and floras and their associated geological context are rare in Central America. We present an integrated study of the geological and paleontological context and age of a new locality from Lago Alajuela in northern Panama (Caribbean side) containing late Miocene marine and terrestrial fossils (plants, invertebrates, and vertebrates) from the Alajuela Formation. These taxa indicate predominantly estuarine and shallow marine paleoenvironments, along with terrestrial influences based on the occurrence of land mammals. Sr-isotope ratio analyses of in situ scallop shells indicate an age for the Alajuela Formation of 9.77 ± 0.22 Ma, which also equates to a latest Clarendonian (Cl3) North American Land Mammal Age. Along with the roughly contemporaneous late Miocene Gatun and Lago Bayano faunas in Panama, we now have the opportunity to reconstruct the dynamics of the Central America seaway that existed before final closure coincident with formation of the Isthmus of Panama.

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Universal hydraulics of the flowering plants: vessel diameter scales with stem length across angiosperm lineages, habits and climates

Cited by 238 publications

References 50 publications

Transcriptome analysis provides insights into wood formation during larch tree aging

Transcriptome analysis provides insights into wood formation during larch tree aging

Responses of Contrasting Tree Functional Types to Air Warming and Drought

Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama

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