Results 81 to 90 of about 1,660 (182)
Summary Variations of oxygen isotopes δ18O in tree rings provide critical insights into past climate and tree physiological processes, yet the mechanisms shaping the intra‐annual δ18O signals remain incompletely understood. To address this gap, we investigated how seasonal changes in source water, leaf water, and sugars influence δ18O recorded along ...
Paul Szejner +9 more
wiley +1 more source
Critical Players and Gene Expression Regulation in Eucalyptus Xylogenesis [PDF]
Secondary xylem, commonly known as wood, is essentially formed by highly lignified secondary cell walls of both fibres and vessels. The process of formation of secondary xylem is also termed xylogenesis.
Carocha, Victor João Martins Taveira
core
Ecological thresholds and transformations due to climate change: The role of abiotic stress
Abstract An ecological threshold is the point at which a comparatively small environmental change triggers an abrupt and disproportionately large ecological response. In the face of accelerating climate change, there is concern that abrupt ecosystem transformations will become more widespread as critical ecological thresholds are crossed.
Michael J. Osland +20 more
wiley +1 more source
ABSTRACT As an evolutionary achievement of almost all terrestrial plants, lignin biosynthesis is essential for various mechanical and physiological processes. Possible effects of plant cell wall lignification on large‐scale vegetation distribution are, however, not yet fully understood. Here, we present double‐stained, wood anatomical stem measurements
Ulf Büntgen +2 more
wiley +1 more source
ABSTRACT Traditional photosynthesis‐driven growth models have considerable uncertainties in predicting tree growth under changing climates, partially because sink activities are directly affected by the environment but not adequately addressed in growth modelling.
Che Liu +4 more
wiley +1 more source
Systems biology of organellar carbon metabolism in Eucalyptus xylogenesis
Thesis (PhD (Genetics))--University of Pretoria, 2020.Trees play a pivotal role in the global carbon cycle through the fixation and storage of carbon as polysaccharide and phenolic biopolymers in the secondary cell walls of xylem fibre cells (wood ...
core +1 more source
Molecular Mechanism of Xylogenesis in Moso Bamboo (Phyllostachys edulis) Shoots during Cold Storage
A bamboo shoot is the immature stem of the woody grass and a nutritious and popular vegetable in East Asia. However, it undergoes a rapid xylogenesis process right after harvest, even being stored in a cold chamber.
Antony Bacic +9 more
core +1 more source
Physiological and ecological mechanisms that define treelines are still debated. It has been suggested that the absence of trees above the treeline is caused by low temperatures that limit growth.
Cufar, Katarina +14 more
core +1 more source
Arabidopsis SHR and SCR transcription factors and AUX1 auxin-influx carrier control the switch between adventitious rooting and xylogenesis in planta and in in-vitro-cultured thin cell layers [PDF]
Background and Aims Adventitious roots (ARs) are essential for vegetative propagation. The Arabidopsis thaliana transcription factors SHORT ROOT (SHR) and SCARECROW (SCR) affect primary/lateral root development, but their involvement in AR formation is
DEL DUCA, STEFANO +19 more
core +1 more source
Afforestation success is measured by the tree establishment and growth capacity which contribute to a range of ecosystem services. In the Mongolian steppe, Populus sibirica and Ulmus pumila have been tested as candidate species for large afforestation ...
Anastazija Dimitrova +10 more
doaj +1 more source

