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Fluctuations of cambial activity in relation to precipitation result in annual rings and intra-annual growth zones of xylem and phloem in teak (Tectona grandis) in Ivory Coast

Agathe DIE UGent, Peter Kitin, François N'Guessan Kouamé, Jan Van den Bulcke UGent, Joris Van Acker UGent and Hans Beeckman UGent (2012) ANNALS OF BOTANY. 110(4). p.861-873
abstract
Background and Aims : Teak forms xylem rings that potentially carry records of carbon sequestration and climate in the tropics. These records are only useful when the structural variations of tree rings and their periodicity of formation are known. Methods : The seasonality of ring formation in mature teak trees was examined via correlative analysis of cambial activity, xylem and phloem formation, and climate throughout 1·5 years. Xylem and phloem differentiation were visualized by light microscopy and scanning electron microscopy. Key Results : A 3 month dry season resulted in semi-deciduousness, cambial dormancy and formation of annual xylem growth rings (AXGRs). Intra-annual xylem and phloem growth was characterized by variable intensity. Morphometric features of cambium such as cambium thickness and differentiating xylem layers were positively correlated. Cambium thickness was strongly correlated with monthly rainfall (R2 = 0·7535). In all sampled trees, xylem growth zones (XGZs) were formed within the AXGRs during the seasonal development of new foliage. When trees achieved full leaf, the xylem in the new XGZs appeared completely differentiated and functional for water transport. Two phloem growth rings were formed in one growing season. Conclusions : The seasonal formation pattern and microstructure of teak xylem suggest that AXGRs and XGZs can be used as proxies for analyses of the tree history and climate at annual and intra-annual resolution.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
vascular cambium, xylem and phloem formation, Tectona grandis, teak, Growth rings, SECONDARY XYLEM, TROPICAL TREES, WOOD FORMATION, SEASONAL PRODUCTION, FOREST, AGE, PERIODICITY, PHENOLOGY, DYNAMICS, TWIGS
journal title
ANNALS OF BOTANY
Ann. Bot.
volume
110
issue
4
pages
861 - 873
Web of Science type
Article
Web of Science id
000308016100012
JCR category
PLANT SCIENCES
JCR impact factor
3.449 (2012)
JCR rank
27/193 (2012)
JCR quartile
1 (2012)
ISSN
0305-7364
DOI
10.1093/aob/mcs145
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3007124
handle
http://hdl.handle.net/1854/LU-3007124
date created
2012-10-05 09:32:33
date last changed
2012-10-09 15:20:53
@article{3007124,
  abstract     = {Background and Aims : Teak forms xylem rings that potentially carry records of carbon sequestration and climate in the tropics. These records are only useful when the structural variations of tree rings and their periodicity of formation are known.
Methods : The seasonality of ring formation in mature teak trees was examined via correlative analysis of cambial activity, xylem and phloem formation, and climate throughout 1{\textperiodcentered}5 years. Xylem and phloem differentiation were visualized by light microscopy and scanning electron microscopy.
Key Results : A 3 month dry season resulted in semi-deciduousness, cambial dormancy and formation of annual xylem growth rings (AXGRs). Intra-annual xylem and phloem growth was characterized by variable intensity. Morphometric features of cambium such as cambium thickness and differentiating xylem layers were positively correlated. Cambium thickness was strongly correlated with monthly rainfall (R2 = 0{\textperiodcentered}7535). In all sampled trees, xylem growth zones (XGZs) were formed within the AXGRs during the seasonal development of new foliage. When trees achieved full leaf, the xylem in the new XGZs appeared completely differentiated and functional for water transport. Two phloem growth rings were formed in one growing season.
Conclusions : The seasonal formation pattern and microstructure of teak xylem suggest that AXGRs and XGZs can be used as proxies for analyses of the tree history and climate at annual and intra-annual resolution.},
  author       = {DIE, Agathe and Kitin, Peter and Kouam{\'e}, Fran\c{c}ois N'Guessan and Van den Bulcke, Jan and Van Acker, Joris and Beeckman, Hans},
  issn         = {0305-7364},
  journal      = {ANNALS OF BOTANY},
  keyword      = {vascular cambium,xylem and phloem formation,Tectona grandis,teak,Growth rings,SECONDARY XYLEM,TROPICAL TREES,WOOD FORMATION,SEASONAL PRODUCTION,FOREST,AGE,PERIODICITY,PHENOLOGY,DYNAMICS,TWIGS},
  language     = {eng},
  number       = {4},
  pages        = {861--873},
  title        = {Fluctuations of cambial activity in relation to precipitation result in annual rings and intra-annual growth zones of xylem and phloem in teak (Tectona grandis) in Ivory Coast},
  url          = {http://dx.doi.org/10.1093/aob/mcs145},
  volume       = {110},
  year         = {2012},
}

Chicago
DIE, Agathe, Peter Kitin, François N’Guessan Kouamé, Jan Van den Bulcke, Joris Van Acker, and Hans Beeckman. 2012. “Fluctuations of Cambial Activity in Relation to Precipitation Result in Annual Rings and Intra-annual Growth Zones of Xylem and Phloem in Teak (Tectona Grandis) in Ivory Coast.” Annals of Botany 110 (4): 861–873.
APA
DIE, A., Kitin, P., Kouamé, F. N., Van den Bulcke, J., Van Acker, J., & Beeckman, H. (2012). Fluctuations of cambial activity in relation to precipitation result in annual rings and intra-annual growth zones of xylem and phloem in teak (Tectona grandis) in Ivory Coast. ANNALS OF BOTANY, 110(4), 861–873.
Vancouver
1.
DIE A, Kitin P, Kouamé FN, Van den Bulcke J, Van Acker J, Beeckman H. Fluctuations of cambial activity in relation to precipitation result in annual rings and intra-annual growth zones of xylem and phloem in teak (Tectona grandis) in Ivory Coast. ANNALS OF BOTANY. 2012;110(4):861–73.
MLA
DIE, Agathe, Peter Kitin, François N’Guessan Kouamé, et al. “Fluctuations of Cambial Activity in Relation to Precipitation Result in Annual Rings and Intra-annual Growth Zones of Xylem and Phloem in Teak (Tectona Grandis) in Ivory Coast.” ANNALS OF BOTANY 110.4 (2012): 861–873. Print.