Results 101 to 110 of about 9,174 (235)
Xylem plasticity is important for trees to coordinate hydraulic efficiency and safety under changing soil water availability. However, the physiological and transcriptional regulations of cambium on xylem plasticity are not well understood. In this study,
Yue Tian +15 more
doaj +1 more source
Simulated Impacts of the 2023 Megadrought on Black Spruce Potential Productivity Across Canada
Abstract Black spruce (Picea mariana) is a dominant tree species across the Canadian boreal forest and a key contributor to national carbon dynamics. However, its growth and stand productivity are increasingly threatened by intensifying droughts, rising temperatures, and associated disturbances such as wildfire. In this study, we used the process‐based
Maxence Soubeyrand +2 more
wiley +1 more source
Hormonal regulation of vascular cambium stem cell niche
Global warming and the rising CO2 levels are having immense negative impacts on society and nature. Besides reducing new emissions, carbon sequestration is an efficient method to slow down these effects.
Mäkilä, Riikka
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Fire‐survival strategies of first‐year acacia seedlings
Acacia seedlings (11 of 12 species) acquire some ability to survive grass fires in their first year, either by resisting topkill with thickened stems and/or by regrowing from below‐ground stems. The results suggest that small differences in these fire‐survival strategies at this crucial life stage translate to large differences in savanna physiognomy ...
Arjun B. Potter +5 more
wiley +1 more source
INCREASE IN GIRTH OF THE CAMBIUM IN THUJA OCCIDENTALS L.
Studies of serial tangential sections of the secondary xylem indicated that increase in girth of the cambium was accomplished not by regulated divisions spaced merely to bring about the required increase in circumference, but by such rapid ...
Barbara E. Whalley
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Gibberellins (GAs) are a class of hormonal regulators, which influence various developmental processes in the life cycle of plants. In woody species, bioactive GAs, whose precursors are synthesized by the action of terpene cyclases and carried in the ...
Huili Su +6 more
doaj +1 more source
Using Confidence Modeling to Optimize Overall Score Quality in Hybrid Scoring Systems
Abstract In large‐scale assessments, constructed response items are often scored using hybrid scoring systems, which combine human and automated scores. In this study, we augment automated scoring with confidence modeling to strategically route difficult‐to‐score responses for human review.
Alexander Kwako +2 more
wiley +1 more source
High levels of auxin signalling define the stem-cell organizer of the vascular cambium [PDF]
Wood, a type of xylem tissue, originates from cell proliferation of the vascular cambium. Xylem is produced inside, and phloem outside, of the cambium(1).
Blomster, Tiina +29 more
core +1 more source
ABSTRACT Invasive tree pathogens pose a significant and increasing threat to natural ecosystems. The outcome of these novel host‐pathogen interactions depends largely on the presence and nature of resistance in host populations, which will govern the host's potential to respond through natural selection and adaptation to the new threat.
Daisy Crowson +4 more
wiley +1 more source
Molecular regulation of vascular cambium identity and activity [Elektronisk resurs]
In plants, secondary development and wood formation originates from the cell divisions within the vascular meristem, where the vascular stem cells are located. This thesis work presents my results on the molecular regulation of vascular cambium stem cell
Sveriges lantbruksuniversitet. +1 more
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