Results 51 to 60 of about 2,934 (199)

Modeling eccentric growth explicitly to investigate intra-annual drivers of xylem cell production using xylogenetic data

Forest Ecosystems
Xylogenesis, the process through which wood cells are formed, results in the long-term storage of carbon in woody biomass, making it a key component of the global carbon cycle.
Lucie Nina Barbier, Marc-André Lemay, Étienne Boucher, Sergio Rossi, Fabio Gennaretti   +4 more
doaj   +1 more source

Integrated analysis and transcript abundance modelling of H3K4me3 and H3K27me3 in developing secondary xylem

Scientific Reports, 2017
Despite the considerable contribution of xylem development (xylogenesis) to plant biomass accumulation, its epigenetic regulation is poorly understood. Furthermore, the relative contributions of histone modifications to transcriptional regulation is not ...
Steven G. Hussey, Mattheus T. Loots, Karen van der Merwe, Eshchar Mizrachi, Alexander A. Myburg   +4 more
doaj   +1 more source

THE ANTIOXIDANT ENZYMES – INDICATORS OF DIFFERENT XYLOGENESIS SCENARIOS: IN EARLY ONTOGENY AND IN ADULT PLANTS (EXAMPLE OF BETULA PENDULA ROTH)

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
We studied the activity of antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), peroxidase (POD)) and polyphenol oxidase (PPO) across ontogenetic stages during the formation of normal (in silver birch, Betula pendula Roth var.
Kseniya Nikerova, Natalia Galibina, Yuliya Moshchenskaya, Ludmila Novitskaya, Marina Podgornaya, Irina Sofronova   +5 more
doaj   +1 more source

Endogenous oscillations of electric potential difference in the cambial region of the pine stem. II. Possible involvement of the oscillations in xylogenesis

Acta Societatis Botanicorum Poloniae, 2014
Direct and indirect interrelations between xylogenic processes and the endogenous electric potential difference (PD) oscillations generated in the cambial region of isolated tissue blocks from pine trunks were investigated.
Wojciech Kurek
doaj   +1 more source

Tree‐ring structure determines the temporal coordination between xylem growth and the gain in hydraulic conductivity in the outermost ring

New Phytologist, EarlyView.
Summary The study of seasonal xylem hydraulics has predominantly focused on embolism‐induced losses, whereas growth‐driven increases in hydraulic capacity have received little attention. We assessed the intra‐annual dynamics of xylem formation and gain of conductivity in the current‐year ring of three species with contrasting tree‐ring structure ...
Laura Fernández‐de‐Uña, Cyrille B. K. Rathgeber, Gonzalo Pérez‐de‐Lis, Anjy N. Andrianantenaina, Matthias Cuntz   +4 more
wiley   +1 more source

Sampling cambial region and mature xylem for non structural carbohydrates and starch analyses [PDF]

, 2011
This paper describes a procedure to analyze non-structural carbohydrates (NSC) and starch in xylem and cambial region extracted by the scraping method. An application on woody logs of 2-year-old Populus×canadensis Mönch 'I-214' during tree-ring formation
Alessio Giovannelli, Annie Deslauriers, Barbaroux, Berta, Chaffey, Deslauriers, Garcia, Geisler-Lee, Giovannelli, Giovanni Emiliani, Gordon, Gouè, Gucci, Hoch, Kock, Magel, Magel, Maria Laura Traversi, Micheli, Moser, Newell, Piispanen, Romani, Rossi, Rossi, Rossi, Rossi, Saranpää, Schrader, Sergio Rossi, Thibeault-Martel, Timell, Uggla, Uggla, Wargo, Würth   +35 more
core   +2 more sources

A 1100‐Year Blue‐Ring Record Reveals Sub‐Annual Cooling Events Hidden in Tree‐Ring Width Chronologies

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Tree‐ring width (RW) records primarily capture low‐frequency temperature variability, yet resolving high‐frequency signals is critical for testing climate models and contextualizing modern extremes. Blue rings (BRs)—bands of unlignified cells revealed by micro‐anatomical staining—capture short‐lived cooling events.
Liliana Siekacz, Charlotte Pearson, Matthew Salzer, Marcin Koprowski, Jakub Wojtasik   +4 more
wiley   +1 more source

Wood formation in Norway spruce on a lowland site in Slovenia in 2015 and comparison with other conifers all over Europe

Les, 2017
We present xylem formation in Norway spruce (Picea abies (L.) Karst.) in 2015 at Panška reka, near Ljubljana, Slovenia (ca. 46°00’N, 14°40’E, 400 m a.s.l.) with a temperate climate.
Fernando Useros, Angela Balzano, Peter Prislan, Martin de Luis, Jožica Gričar, Maks Merela, Katarina Čufar   +6 more
doaj   +1 more source

Allies or Enemies: The Role of Reactive Oxygen Species in Developmental Processes of Black Cottonwood (Populus trichocarpa)

Antioxidants, 2020
In contrast to aboveground organs (stems and leaves), developmental events and their regulation in underground organs, such as pioneer and fine roots, are quite poorly understood.
Katarzyna Marzec-Schmidt, Natalia Wojciechowska, Klaudia Nemeczek, Agnieszka Ludwików, Joanna Mucha, Agnieszka Bagniewska-Zadworna   +5 more
doaj   +1 more source

Molecular Genetic Characteristics of Different Scenarios of Xylogenesis on the Example of Two Forms of Silver Birch Differing in the Ratio of Structural Elements in the Xylem

Plants, 2021
Silver birch (Betula pendula Roth) is an economically important species in Northern Europe. The current research focused on the molecular background of different xylogenesis scenarios in the birch trunks. The study objects were two forms of silver birch,
Natalia A. Galibina, Tatiana V. Tarelkina, Olga V. Chirva, Yulia L. Moshchenskaya, Kseniya M. Nikerova, Diana S. Ivanova, Ludmila I. Semenova, Aleksandra A. Serkova, Ludmila L. Novitskaya   +8 more
doaj   +1 more source