Wood structure explained by complex spatial source-sink interactions.
Wood structure explained by complex spatial source-sink interactions.
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DOI:
10.1038/s41467-022-35451-7
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发表时间:
2022-12-19
影响因子:
16.6
通讯作者:
Tupker, Quinten
中科院分区:
文献类型:
--
作者:
Friend, Andrew D.;Eckes-Shephard, Annemarie H.;Tupker, Quinten
Wood is a remarkable material with great cultural, economic, and biogeochemical importance. However, our understanding of its formation is poor. Key properties that have not been explained include the anatomy of growth rings (with consistent transitions from low-density earlywood to high density latewood), strong temperature-dependence of latewood density (used for historical temperature reconstructions), the regulation of cell size, and overall growth-temperature relationships in conifer and ring-porous tree species. We have developed a theoretical framework based on observations on Pinus sylvestris L. in northern Sweden. The observed anatomical properties emerge from our framework as a consequence of interactions in time and space between the production of new cells, the dynamics of developmental zone widths, and the distribution of carbohydrates across the developing wood. Here we find that the diffusion of carbohydrates is critical to determining final ring anatomy, potentially overturning current understanding of how wood formation responds to environmental variability and transforming our interpretation of tree rings as proxies of past climates. The authors present a wood formation model to explain multiple, hitherto poorly understood observations, related to carbon density, cell size, and temperature-growth relationships key for future carbon cycle simulations and past proxy interpretation.
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影响因子:
5.6
作者:
Eckes-Shephard AH;Ljungqvist FC;Drew DM;Rathgeber CBK;Friend AD
通讯作者:
Friend AD
影响因子:
5.6
作者:
Cartenì F;Deslauriers A;Rossi S;Morin H;De Micco V;Mazzoleni S;Giannino F
通讯作者:
Giannino F
影响因子:
7.3
作者:
Cuny, Henri E.;Fonti, Patrick;Frank, David C.
通讯作者:
Frank, David C.
影响因子:
64.8
作者:
Briffa, KR;Schweingruber, FH;Vaganov, EA
通讯作者:
Vaganov, EA
影响因子:
9.4
作者:
Cuny, Henri E.;Rathgeber, Cyrille B. K.;Fournier, Meriem
通讯作者:
Fournier, Meriem