Results 61 to 70 of about 1,660 (182)

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

Tree growth response and adaptation to climate change and climate extremes: From canopy to stem

Journal of Integrative Plant Biology, Volume 68, Issue 8, Page 2388-2415, August 2026.
This review synthesizes the responses and adaptations of tree growth, including canopy phenology, intra‐annual wood formation dynamics, and annual stem growth, to climate change and climate extremes. It highlights key knowledge gaps for future research to support sustainable forest management and enhance forest carbon storage under ongoing climate ...
Feiyu Yang, Leyao Zhu, Jiahao Cao, Fei Yang, Borbála Codogno, Qianqian Ma, Hanxue Liang, Wenjin Wang, Jian‐Guo Huang   +8 more
wiley   +1 more source

Seasonal Vascular Tissue Formation in Four Boreal Tree Species With a Focus on Callose Deposition in the Phloem

Frontiers in Forests and Global Change, 2019
We studied the seasonal dynamics of xylem and phloem formation in four boreal tree species that differed in leaf phenology (evergreen vs. winter-deciduous) and wood anatomy (angiosperms vs. gymnosperms).
David Montwé, Uwe Hacke, Stefan G. Schreiber, Stefan G. Schreiber, Ryan C. Stanfield   +4 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

Catechin promotes growth of Arabidopsis thaliana with concomitant changes in vascular system, photosynthesis and hormone content

Biologia Plantarum, 2011
Catechin is associated with several functions in animal and plant systems, with little information available regarding its role in plant growth. Low concentrations of catechin (50 and 100 μM) were found to enhance length of primary and lateral roots ...
A. Rani, S. Kumar Vats, M. Sharma, S. Kumar   +3 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

CLE peptides in plant‐biotic interactions

New Phytologist, Volume 250, Issue 2, Page 805-811, April 2026.
Summary Plant‐biotic interactions are driven by the exchange of molecules. Small peptide hormones like CLAVATA3/EMBRYO SURROUNDING REGION (CLE) peptides play central regulatory roles in these interactions. CLEs determine the extent of symbiotic interaction to balance costs and benefits for the host.
Nicolas Frei dit Frey, Thomas Spallek
wiley   +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

Thermostability of antioxidant enzymes in tissues of Scots pine in heat shock conditions [PDF]

Сибирский лесной журнал, 2017
Samples of needles from the middle part of the crown and cambial zone scrapings, which includes cambium cells and nonlignified xylem cells from five stems of 15 years old Scots pine Pinus sylvestris L.
N. E. Sudachkova, L. I. Romanova, N. V. Astrakhantseva, M. V. Novoselova   +3 more
doaj   +1 more source

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