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Naslov:Post-fire effects on development of leaves and secondary vascular tissues in Quercus pubescens
Avtorji:ID Gričar, Jožica (Avtor)
ID Hafner, Polona (Avtor)
ID Lavrič, Martina (Avtor)
ID Ferlan, Mitja (Avtor)
ID Ogrinc, Nives (Avtor)
ID Krajnc, Bor (Avtor)
ID Eler, Klemen (Avtor)
ID Vodnik, Dominik (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (732,75 KB)
MD5: 7A6B57C8C2123F66DD4D472F8BD4FF35
 
URL URL - Izvorni URL, za dostop obiščite https://academic.oup.com/treephys/article/40/6/796/5807499
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo SciVie - Gozdarski inštitut Slovenije
Povzetek:An increased frequency of fire events on the Slovenian Karst is in line with future climate-change scenarios for drought-prone environments worldwide. It is therefore of the utmost importance to better understand tree-fire-climate interactions for predicting the impact of changing environment on tree functioning. To this purpose, we studied the post-fire effects on leaf development, leaf carbon isotope composition (%13C), radial growth patterns and the xylem and phloem anatomy in undamaged (H-trees) and fire-damaged trees (F-trees) of Q. pubescens with good re-sprouting ability in spring 2017, the growing season after a rangeland fire in August 2016. We found that the fully developed canopy of F-trees reached only half of the LAI values measured in H-trees. Throughout the season, F-trees were characterised by higher water potential and stomatal conductivity and achieved higher photosynthetic rates compared to unburnt H-trees. The foliage of F-trees had more negative %13C values than those of H-trees. This reflects that F-trees less frequently meet stomatal limitations due to reduced transpirational area and more favourable leaf-to-root ratio. In addition, the growth of leaves in F-trees relied more on the recent photosynthates than on reserves due to the fire disturbed starch accumulation in the previous season. Cambial production stopped 3 weeks later in F-trees, resulting in 60% and 22% wider xylem and phloem increments, respectively. A novel approach by including phloem anatomy in the analyses revealed that fire caused changes in conduit dimensions in the early phloem but not in the earlywood. However, premature formation of the tyloses in the earlywood vessels of the youngest two xylem increments in F-trees implies that xylem hydraulic integrity was also affected by heat. Analyses of secondary tissues showed that although xylem and phloem tissues are interlinked changes in their transport systems due to heat damage are not necessarily coordinated.
Ključne besede:pubescent oak, cambium, radial growth, xylem, phloem, anatomy, sub-Mediterranean
Status publikacije:Objavljeno
Verzija publikacije:Recenzirani rokopis
Leto izida:2020
Št. strani:str. 796-809
Številčenje:Vol. 40, iss. 6
PID:20.500.12556/DiRROS-11209 Novo okno
UDK:630*8:630*4
ISSN pri članku:1758-4469
DOI:10.1093/treephys/tpaa030 Novo okno
COBISS.SI-ID:5648294 Novo okno
Opomba:Nasl. iz nasl. zaslona; Opis vira z dne 18. 30.2020;
Datum objave v DiRROS:19.03.2020
Število ogledov:3099
Število prenosov:1714
Metapodatki:XML DC-XML DC-RDF
:
GRIČAR, Jožica, HAFNER, Polona, LAVRIČ, Martina, FERLAN, Mitja, OGRINC, Nives, KRAJNC, Bor, ELER, Klemen in VODNIK, Dominik, 2020, Post-fire effects on development of leaves and secondary vascular tissues in Quercus pubescens. Tree physiology [na spletu]. 2020. Vol. 40, no. 6, p. 796–809. [Dostopano 29 marec 2025]. DOI 10.1093/treephys/tpaa030. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=11209
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Gradivo je del revije

Naslov:Tree physiology
Skrajšan naslov:Tree physiol.
Založnik:Heron
ISSN:1758-4469
COBISS.SI-ID:517863705 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J4-7203
Naslov:Kratkoročni in dolgoročni odzivi hrastov v submediteranu na ekstremne vremenske dogodke s pomočjo drevesno-anatomskih analiz in eko-fizioloških meritev
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J4-9297
Naslov:Skladnost in časovno ujemanje med ogljikom vezanim v lesno biomaso in
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0085
Naslov:Agroekosistemi
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P4-0107
Naslov:Gozdna biologija, ekologija in tehnologija

Sekundarni jezik

Jezik:Ni določen
Ključne besede:puhasti hrast, kambij, floem, anatomija, sub-Sredozemlje, debelinsk rast, ksilem


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