20.500.12556/DiRROS-7529
Annual cambial rhythm in Pinus halepensis and Pinus sylvestris as indicator for climate adaptation
To understand better the adaptation strategies of intra-annual radial growth in Pinus halepensis and Pinus sylvestris to local environmental conditions, we examined the seasonal rhythm of cambial activity and cell differentiation at tissue and cellular levels. Two contrasting sites differing in temperature and amount of precipitation were selected for each species, one typical for their growth and the other represented border climatic conditions, where the two species coexisted. Mature P. halepensis trees from Mediterranean (Spain) and sub-Mediterranean (Slovenia) sites, and P. sylvestris from sub-Mediterranean (Slovenia) and temperate (Slovenia) sites were selected. Repeated sampling was performed throughout the year and samples were prepared for examination with light and transmission electron microscopes. We hypothesized that cambial rhythm in trees growing at the sub-Mediterranean site where the two species co-exist will be similar as at typical sites for their growth. Cambium in P. halepensis at the Mediterranean site was active throughout the year and was never truly dormant, whereas at the sub-Mediterranean site it appeared to be dormant during the winter months. In contrast, cambium in P. sylvestris was clearly dormant at both sub-Mediterranean and temperate sites, although the dormant period seemed to be significantly longer at the temperate site. Thus, the hypothesis was only partly confirmed. Different cambial and cell differentiation rhythms of the two species at the site where both species co-exist and typical sites for their growth indicate their high but different adaptation strategies in terms of adjustment of radial growth to environmental heterogeneity, crucial for long-term tree performance and survival.
Aleppo pine
Pinus halepensis
Scots pine
Pinus sylvestris
cambium
light microscopy
Mediterranean environment
temporate environment
transmission electron microscopy
xylem
alepski bor
Pinus halepensis
Pinus sylvestris
kambij
svetlobna mikroskopija
mediteransko podnebje
rdeči bor
zmerno podnebje
transmisijska elektronska mikroskopija
ksilem
true
false
true
Angleški jezik
Ni določen
Znanstveno delo
2017-07-12 09:14:51
2017-07-12 09:14:51
2022-08-12 13:55:51
0000-00-00 00:00:00
2016
0
0
Nasl. iz nasl. zaslona;
Opis vira z dne 11. 1. 2017;
El. publikacija v formatu PDF obsega 15 str.;
15 str.
article 1923
Vol. 7
2016
0000-00-00
Zaloznikova
Objavljeno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
630*81:630*11(045)=111
1664-462X
10.3389/fpls.2016.01923
4650150
3011663
Prislan2016.pdf
Prislan2016.pdf
1
5FFAAF4E564B3D3055A4BD822EE2D3E0
224a823b32f96fbda16d9507969e6c4f33f77f3ad95976a838dc23804ef35447
1643bfaf-17b5-11ed-b6b8-001a4af901a5
20.500.12556/dirros/9ee3aada-6ba4-4509-ae5e-3dd28f6752bb
https://dirros.openscience.si/Dokument.php?lang=slv&id=9382
https://www.frontiersin.org/articles/10.3389/fpls.2016.01923/full
1
https://dirros.openscience.si/Dokument.php?lang=slv&id=20114
Gozdarski inštitut Slovenije
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