Trees

http://link.springer.com/journal/468

List of Papers (Total 122)

Differences in bud burst timing and bud freezing tolerance among interior and coastal seed sources of Douglas fir

Key message The Douglas fir provenance Three Valley was found most suitable for planting in mid-Sweden. Greenhouse tests can most likely predict how different Douglas fir provenances will perform in the field. Abstract The need for species that will grow well through ongoing climate change has increased the interest in Douglas fir [Pseudotsuga menziesii (Mirb.) Franco] in Sweden. ...

Does Cedrela always form annual rings? Testing ring periodicity across South America using radiocarbon dating

Key Message Radiocarbon dating shows that Cedrela trees from Bolivia, Ecuador and Venezuela form one ring per year but Cedrela trees from Suriname form two rings per year. Abstract Tropical tree rings have the potential to yield valuable ecological and climate information, on the condition that rings are annual and accurately dated. It is important to understand the factors ...

Transcriptome comparative analysis of two Camellia species reveals lipid metabolism during mature seed natural drying

Key message The molecular mechanisms of fatty acid biosynthesis and accumulation during Camellia meiocarpa and Camellia oleifera seed natural drying are characterized through transcriptome analyses. Abstract Camellia seed oil has been used as high quality and healthy food for over two thousand years. Seed drying affects oil quality and quantity; however, the molecular mechanisms of ...

Branching morphology, vascular bundle arrangement and ontogenetic development in leaf insertion zones and ramifications of three arborescent Araliaceae species

Key message A conspicuous ‘finger-like’ branching morphology is described for three arborescent Araliaceae species with a focus on the three-dimensional vascular bundle arrangement in leaf insertion and stem–branch attachment regions during ontogenetic development. Abstract The central aim of this study is to gain a deeper understanding of the structure and development in leaf ...

A novel computer-aided tree-ring analysis software (CATS): oak earlywood vessel size reveals a clear spring heat sum response

Key message The use of cell-size parameters from oak trees as a powerful proxy for past climate reconstruction needs to be more intensively studied. The freeware tool CATS will help pushing these high-volume cell-size measurements. Abstract In this study, we analyzed the response of vessel size chronologies to daily meteorological records. For this purpose, we developed a ...

Signaling pathway in development of Camellia oleifera nurse seedling grafting union

Key message The anatomical and physiological signaling pathways associated with successful scion-rootstock union in nurse seedling grafting of Camellia oleifera propagation are illustrated. Abstract Grafting, the successful union between scion and rootstock, has practical and biological importance. Nurse seedling grafting, as those practiced for Camellia oleifera, often results in ...

Immunolocalization of pectin and hemicellulose epitopes in the phloem of Norway spruce and Scots pine

Key message Distribution patterns of pectin and hemicellulose epitopes in the phloem of Pinaceae conifers differ between cell types including sieve cells, axial/ray parenchyma cells and stone cells, which is more prominent in seedlings than mature trees. Abstract Although there is considerable information on the gross chemistry of conifer bark, little is known on the chemistry of ...

Fracture properties of green wood formed within the forks of hazel (Corylus avellana L.)

Key message Central apex of bifurcations has higher specific fracture energy in TR fracture system than that of four sampling locations. This could be due to higher density and interlocked grain formation. Abstract Forks are one of the important biomechanical structures in trees because of their potential vulnerability to splitting. Many researchers have investigated the strength ...

Ectomycorrhizal fungal communities of silver-fir seedlings regenerating in fir stands and larch forecrops

Key message The diversity of ECM communities of 1-year-old silver-fir seedlings regenerating in mature silver-fir stands is significantly higher than in neighboring larch forecrops. Abstract Forecrop stands provide the necessary shade for shade preferring seedlings, such as silver-fir, which cannot be introduced as the first generation in open areas. Larch is a good candidate, ...

Nitrogen productivity and allocation responses of 12 important tree species to increased CO2

Key message This paper provides responses in nitrogen productivities for 12 important tree species to elevated CO 2. Abstract The increasing atmospheric carbon dioxide concentration is expected to increase plant productivity. However, the strength of the response depends on the interaction with other limiting factors, of which nitrogen has been identified as one of the most ...

Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

Key message Based on the first dendroclimatological analyses of the thermo-Mediterranean tree Pyrus bourgaeana , the positive relationship between the growth and climate (i.e., precipitation) has strengthened in recent decades. Abstract The combined effect of climate change and habitat destruction and fragmentation threatens many plant populations and even entire communities in ...

Soil water availability and evaporative demand affect seasonal growth dynamics and use of stored water in co-occurring saplings and mature conifers under drought

Key message Differences in temporal dynamics of radial growth and use of stem water reserves in co-occurring saplings and mature conifers are caused by soil water availability and canopy structure. Abstract High-resolution time series of stem radius variations (SRVs) record fluctuations in tree water status and temporal dynamics of radial growth. The focus of this study was to ...

Cryopreservation changes the DNA methylation of embryonic axes of Quercus robur and Fagus sylvatica seeds during in vitro culture

Key message Dehydration and cryo-stress (−196 °C) caused a greater increase in the DNA methylation of embryonic axes (EAs) of beech seeds (tolerant to both stresses) than in EAs of oak (sensitive to both stresses). Simultaneously, in vitro survival of cryopreserved beech EAs was also significantly higher than in those of oak. Abstract DNA methylation plays a key role in the ...

Tree growth, cambial phenology, and wood anatomy of limber pine at a Great Basin (USA) mountain observatory

Key message Anatomical features of Pinus flexilis under warmer and drier conditions along an altitudinal transect revealed a shorter growing season and shifts in the timing of wood formation. Abstract Future climate change driven by greenhouse warming is expected to increase both frequency and severity of drought events and heat waves. Possible consequences for forest ecosystems ...