Results 41 to 50 of about 2,162 (162)

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

The Assimilate Partitioning Importance for Heartwood Extractives Formation in Robinia Pseudoacacia l. of Different Ages

Floresta e Ambiente
This study aimed to investigate the influence of tree age on the assimilates partitioning and its significance for the formation of heartwood extractives in Robinia pseudoacacia L. (black locust). Assimilate translocation in 6- and 15-year-old plants was
Oliver Dünisch, João Vicente de Figueiredo Latorraca   +1 more
doaj   +1 more source

Plant-Programmed Cell Death-Associated Genes Participation in Pinus sylvestris L. Trunk Tissue Formation

Plants, 2022
Molecular genetic markers of various PCD (programmed cell death) variants during xylo- and phloemogenesis have been identified for the first time in Scots pine under lingonberry pine forest conditions in Northwest Russia (middle taiga subzone).
Yulia L. Moshchenskaya, Natalia A. Galibina, Kseniya M. Nikerova, Tatiana V. Tarelkina, Maksim A. Korzhenevsky, Irina N. Sofronova, Maria A. Ershova, Ludmila I. Semenova   +7 more
doaj   +1 more source

The proportion of heartwood in conifer (Pinus sylvestris L., Picea abies [L.] H. Karst.) trunks and its influence on trunk wood moisture -

Journal of Forest Science, 2013
As the tree age increases, the formation of heartwood takes place in the central part of the tree. Since there is a large difference in the moisture content between sapwood and heartwood in conifers, the proportion of heartwood expressed in percentage is
M. Millers
doaj   +1 more source

Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence

Oikos, Volume 2026, Issue 6, June 2026.
Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo, Pemelyn Santos, Mariina Günther, Jari Kouki, Tuomas Aakala   +4 more
wiley   +1 more source

Evaluation of immunomodulatory activity of " Shirishavaleha"-An Ayurvedic compound formulation in albino rats

Journal of Ayurveda and Integrative Medicine, 2011
The immunomodulatory activity of Shirishavaleha prepared from two different parts of Shirisha (Albizia lebbeck Benth), i.e., Twak (Bark) and Sara (Heartwood) as main ingredients was evaluated for humoral antibody formation and cell-mediated immunity in ...
Shyamlal Singh Yadav, Galib, P K Prajapati, B K Ashok, B Ravishankar   +4 more
doaj   +1 more source

Comparative Metabolomics and Transcriptome Analysis Reveal the Fragrance-Related Metabolite Formation in Phoebe zhennan Wood

Molecules, 2023
Nanmu (Phoebe zhennan) has a unique fragrance and is a high-quality tree species for forest conservation. The types and contents of volatile compounds in different tissues of nanmu wood are different, and the study of its volatile metabolites can help us
Hanbo Yang, Fang Wang, Wenna An, Yunjie Gu, Yongze Jiang, Hongying Guo, Minhao Liu, Jian Peng, Bo Jiang, Xueqin Wan, Lianghua Chen, Xiong Huang, Fang He, Peng Zhu   +13 more
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, Volume 250, Issue 6, Page 3732-3746, June 2026.
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

Spatial Distribution and Conservation Prioritization of Medicinal Gymnosperms in China Using an Optimal Set‐Cover Approach

Ecology and Evolution, Volume 16, Issue 5, May 2026.
The study identified 41 priority conservation grids and 8 critical conservation gaps not covered by national reserves for medicinal gymnosperms. We proposed a practical, multi‐dimensional framework for their conservation. ABSTRACT To elucidate the geographical distribution patterns and hotspots of medicinal gymnosperms in China, providing a scientific ...
Lisi Hai, Xinyi Wang, Yuchang Yang, Rui Shu, Yanqin Xu, Guibing Lin, Lihua Dong, Xiaobo Zhang, Zhangjian Shan   +8 more
wiley   +1 more source

Homoisoflavonoids—From Natural Specificity and Biosynthesis to Precision Health‐Promoting Mechanisms

Food Frontiers, Volume 7, Issue 3, May 2026.
Homoisoflavonoids are rare flavonoids with a unique bi‐aromatic oxygen‐heterocyclic structure. This review synthesizes their structure–activity relationships in anti‐inflammatory, hypoglycemic, and anticancer contexts. By highlighting their specific natural distribution and outlining biosynthetic pathways, it provides a conceptual framework and ...
Jing Zhang, Han Chen, Jinping Si, Zhigang Han, Xinfeng Zhang   +4 more
wiley   +1 more source