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Vessel diameter is related to amount and spatial arrangement of axial parenchyma in woody angiosperms
H. Morris, MAF. Gillingham, L. Plavcová, SM. Gleason, ME. Olson, DA. Coomes, E. Fichtler, MM. Klepsch, HI. Martínez-Cabrera, DJ. McGlinn, EA. Wheeler, J. Zheng, K. Ziemińska, S. Jansen,
Jazyk angličtina Země Spojené státy americké
Typ dokumentu časopisecké články
NLK
Free Medical Journals
od 1997 do Před 3 lety
Wiley Free Content
od 1997 do Před 3 lety
PubMed
29047119
DOI
10.1111/pce.13091
Knihovny.cz E-zdroje
- MeSH
- déšť MeSH
- dřevo anatomie a histologie MeSH
- Magnoliopsida anatomie a histologie MeSH
- podnebí MeSH
- teoretické modely MeSH
- teplota MeSH
- xylém anatomie a histologie MeSH
- Publikační typ
- časopisecké články MeSH
Parenchyma represents a critically important living tissue in the sapwood of the secondary xylem of woody angiosperms. Considering various interactions between parenchyma and water transporting vessels, we hypothesize a structure-function relationship between both cell types. Through a generalized additive mixed model approach based on 2,332 woody angiosperm species derived from the literature, we explored the relationship between the proportion and spatial distribution of ray and axial parenchyma and vessel size, while controlling for maximum plant height and a range of climatic factors. When factoring in maximum plant height, we found that with increasing mean annual temperatures, mean vessel diameter showed a positive correlation with axial parenchyma proportion and arrangement, but not for ray parenchyma. Species with a high axial parenchyma tissue fraction tend to have wide vessels, with most of the parenchyma packed around vessels, whereas species with small diameter vessels show a reduced amount of axial parenchyma that is not directly connected to vessels. This finding provides evidence for independent functions of axial parenchyma and ray parenchyma in large vesselled species and further supports a strong role for axial parenchyma in long-distance xylem water transport.
Arnold Arboretum of Harvard University 1300 Centre St Boston MA 02130 USA
Department of Biology College of Charleston Charleston SC 29424 USA
Institute of Systematic Botany and Ecology Ulm University Albert Einstein Allee 11 89081 Ulm Germany
Museo de Múzquiz A C Zaragoza 209 C P 26340 Melchor Múzquiz Coahuila Mexico
USDA ARS Water Management and Systems Research Unit Fort Collins CO 80526 USA
Zheng JingminG College of Forestry Beijing Forestry University Beijing 100083 China
Citace poskytuje Crossref.org
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