Results 31 to 40 of about 5,786,132 (173)

Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome

open access: yesGlobal Ecology and Conservation
The tropical forests of the Congo Basin biome are particularly diverse. The question arises whether the cambial activity of the multitude of tree species shows a periodic signal. Given the anticipated increases in temperature and changes in precipitation
Basile Luse Belanganayi   +10 more
doaj   +1 more source

Relations between cambial activity and phenolic compounds

open access: yes, 1997
The aim of this study was to determine relations between cambial activity and flavan contents on hazelnut. While cambial activity were followed on cross sections between 14 February and 13 September, flavan contents were detected in phloem tissues of ...
Karadeniz, T, Battal, P, Balta, F
core   +1 more source

A miR156-SPL module controls shade-induced inhibition of vascular cambium activity through cytokinin pathway in poplar

open access: yesCell Reports
Summary: In natural forests and plantations, trees often encounter neighbor proximity that hinders wood production. However, the mechanisms by which shade regulates cambial activity during secondary growth remain elusive.
Hongbin Wei   +8 more
doaj   +1 more source

Biological basis of tree-ring formation: a crash course

open access: yesFrontiers in Plant Science, 2016
Wood is of crucial importance for man and biosphere. In this mini review, we present the fundamental processes involved in tree-ring formation and intra-annual dynamics of cambial activity, along with the influences of the environmental factors.
Cyrille Barthélémy Karl Rathgeber   +2 more
doaj   +1 more source

Concomitant analysis of cambial abscisic acid and cambial growth activity in poplar

open access: yes, 2013
Endogenous levels of cambial region abscisic acid (ABA) were quantified by immunoassay and assessed together with cambial growth activity in poplar (Populus nigra L. × P. maximowiczii Henry, clone Kamabuchi) over the course of a growing season. The level
Arend, Matthias, Fromm, Jörg
core   +1 more source

The effect of stem girdling on xylem and phloem formation in Scots pine

open access: yesSilva Fennica, 2017
Scots pine ( L.) is a resilient, wide spread species. This paper reports on the xylem and phloem cell formation process, before and after, the species was put under artificial stress by stem girdling.
Fajstavr, Marek   +4 more
doaj   +1 more source

Seasonal variation of auxin in stem cambial region of Pinus sihestris L.

open access: yesActa Societatis Botanicorum Poloniae, 2015
Investigation of auxin from the stem cambial region of adult Pinus silvestris trees by diffusion to agar, and by extraction revealed both seasonal variation and gradients along the stem. Variation in dynamics of auxin efflux and the effect of the size of
Tomasz J. Wodzicki
doaj   +1 more source

Cambial growth season of brevi-deciduous Brachystegia spiciformis trees from south central Africa restricted to less than four months. [PDF]

open access: yesPLoS ONE, 2012
We investigate cambial growth periodicity in Brachystegia spiciformis, a dominant tree species in the seasonally dry miombo woodland of southern Africa. To better understand how the brevi-deciduous (experiencing a short, drought-induced leaf fall period)
Valérie Trouet   +3 more
doaj   +1 more source

Collagen‐membrane‐covered matrix‐associated chondrocyte implantation improves safety over periosteum‐covered MACI for large knee cartilage defects: A real‐world data analysis in the registry study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose This registry study aimed to evaluate the safety and effectiveness of collagen membrane‐covered matrix‐associated autologous chondrocyte implantation (cMACI) versus periosteum‐covered MACI (pMACI) for large knee cartilage defects (Outerbridge III–IV, ≥4 cm²) in the femorotibial and/or patellofemoral joints with a minimum 2‐year follow ...
Yuji Uchio   +4 more
wiley   +1 more source

Derivativos como instrumento de hedge cambial [PDF]

open access: yes, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O presente trabalho tem por objetivo apresentar os principais participantes do mercado financeiro nacional onde se ...
Freire Junior, Acyr Elias
core  

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