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Timeline of leaf and cambial phenology in relation to development of initial conduits in xylem and phloem in three coexisting sub-Mediterranean deciduous tree species [Elektronski vir]Gričar, Jožica, 1978- ...It is unclear how the anticipated climate change will affect the timing of phenology of different tree organs/tissues and thus the whole-tree functioning. We examined the timing of leaf phenology and ... secondary growth in three coexisting deciduous tree species (Quercus pubescens Willd., Fraxinus ornus L. and Ostrya carpinifolia Scop) from a sub-Mediterranean region in 2019. In addition, we investigated the relationship between leaf and cambial phenology and the onset of the potential functioning of initial conduits, as determined by the completed differentiation process (vessels) or final size (sieve tubes). For this purpose, leaf development was monitored and the microcores of cambium and the youngest phloem and xylem increments were repeatedly collected at 7-10-day intervals during the growing season. The results revealed differences in the timing of leaf development and seasonal radial growth patterns in spring among the studied tree species, depending on wood porosity. We found that cambial cell production started in all cases in the first half of March. However, in ring-porous Q. pubescens and F. ornus, radial growth in the stem occurred more than a month before buds were swollen, whereas in diffuse-porous O. carpinifolia, these two events were detected at almost the same time. The end of cambial cell production occurred earliest in F. ornus (mid-July) and two weeks later also in the other two species. The widest initial earlywood vessels and early phloem sieve tubes were found in Q. pubescens, the narrowest initial earlywood vessels in O. carpinifolia and the narrowest early phloem sieve tubes in F. ornus. This indicates differences in the effciency of conducting systems among the studied species. This novel approach of studying phloem phenology and anatomy in relation to leaf and xylem development contributes to a better understanding of how different tree species adapt their structure of secondary vascular tissues in response to environmental change.Source: Forests [Elektronski vir]. - ISSN 1999-4907 (Vol. 11, iss. 10, article 1104, 2020, 14 str.)Type of material - e-articlePublish date - 2020Language - englishCOBISS.SI-ID - 33382403
Author
Gričar, Jožica, 1978- |
Vedenik, Andreja |
Skoberne, Gregor |
Hafner, Polona, 1981- |
Prislan, Peter
Topics
Quercus pubescens |
Fraxinus ornus |
Ostrya carpinifolia |
rani les |
rani floem |
traheje |
sitaste cevi |
debelinska rast |
Quercus pubescens |
Fraxinus ornus |
Ostrya carpinifolia |
earlywood |
early phloem |
vessel |
sieve tube |
radial growth
Author | Gričar, Jožica, 1978- ... |
Title | Timeline of leaf and cambial phenology in relation to development of initial conduits in xylem and phloem in three coexisting sub-Mediterranean deciduous tree species [Elektronski vir] |
Publication date | 2020-10-17 |
COBISS.SI-ID | 33382403 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Unidentified |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Skladnost in časovno ujemanje med ogljikom vezanim v lesno biomaso in "eddy covariance" oceno neto ekosistemske produkcije za presvetljen gozdnat ekosistem | J4-9297-2018 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Kratkoročni in dolgoročni odzivi hrastov v submediteranu na ekstremne vremenske dogodke s pomočjo drevesno-anatomskih analiz in eko-fizioloških meritev | J4-7203-2016 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gozdna biologija, ekologija in tehnologija | P4-0107-2015 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://doi.org/10.3390/f11101104 |
http://dirros.openscience.si/IzpisGradiva.php?id=12605 |
https://dirros.openscience.si/IzpisGradiva.php?id=12605 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gričar, Jožica, 1978- | 22609 |
Vedenik, Andreja | |
Skoberne, Gregor | |
Hafner, Polona, 1981- | 29633 |
Prislan, Peter | 29428 |
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