Auxin (IAA) and soluble carbohydrate seasonal dynamics monitored during xylogenesis and phloemogenesis in Scots pine
Marek Fajstavr (1-2) , Zuzana Paschová (1), Kyriaki Giagli (1), Hanuš Vavrčík (1), Vladimír Gryc (1), Josef Urban (3-4)
iForest - Biogeosciences and Forestry, Volume 11, Issue 5, Pages 553-562 (2018)
doi: https://doi.org/10.3832/ifor2734-011
Published: Sep 01, 2018 - Copyright © 2018 SISEF
Research Articles
Abstract
The metabolic activity of phytohormones and the accumulation of carbohydrates affect the reactivation of the cambial zone and the radial increment of woody plants. We aimed to monitor the dynamics of indole-3-acetic acid (IAA) concentration and amounts of soluble carbohydrates during xylem and phloem formation of one growing season (2015). Six sample trees of Scots pine (Pinus sylvestris L.), aged 80 years on average, growing in the Sobešice research site (404 m a.s.l.) in the Czech Republic were selected. We obtained microcore samples at weekly intervals by the Trephor tool method for cell formation analysis and spectrophotometric determination of IAA and soluble carbohydrate contents. We found that time of the highest concentration of IAA (last week of April) coincided with time of the maximum number of cells in the cambial zone and highest expansion of the cell enlargement stage. When the IAA concentration was too low to be measured, latewood tracheids started to form, and late phloem sieve cell formation ceased. The highest concentration of soluble carbohydrates was 200.40 ± 21.6 µg GLU per sample (May 14). This coincided with the fastest weekly xylem cell increment. This research shows that IAA and soluble carbohydrate dynamics directly affects xylem and phloem formation.
Keywords
Pinus sylvestris L., Indole-3-Acetic Acid, Xylem, Phloem, Tracheids, Earlywood, Latewood
Authors’ Info
Authors’ address
Zuzana Paschová
Kyriaki Giagli
Hanuš Vavrčík
Vladimír Gryc
Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelská 3, 61300 Brno (Czech Republic)
The Czech Academy of Sciences, CzechGlobe - Global Change Research Institute, Institute of Plant Water Balance and Biomass Production, Belidla 4a, 60300 Brno (Czech Republic)
Department of Forest Botany, Dendrology and Geobiocenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelská 3, 61300 Brno (Czech Republic)
Siberian Federal University, Svobodnyj Prospect 79, Krasnoyarsk, 660041 Krasnoyarsk (Russia)
Corresponding author
Paper Info
Citation
Fajstavr M, Paschová Z, Giagli K, Vavrčík H, Gryc V, Urban J (2018). Auxin (IAA) and soluble carbohydrate seasonal dynamics monitored during xylogenesis and phloemogenesis in Scots pine. iForest 11: 553-562. - doi: 10.3832/ifor2734-011
Academic Editor
Werther Guidi Nissim
Paper history
Received: Jan 19, 2018
Accepted: Jun 26, 2018
First online: Sep 01, 2018
Publication Date: Oct 31, 2018
Publication Time: 2.23 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2018
Open Access
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References
Image processing with imagej. Biophotonics International 11: 36-42.
Gscholar
Regional climate projections. In: “Climate Change 2007: the Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change” (Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M, Miller HL eds). Cambridge University press, Cambridge, UK, pp. 849-940.
Gscholar
Seasonal variations in endogenous indole-3-acetic acid and abscisic acid in the cambial region of Pinus densiflora stems in relation to earlywood-latewood transition and cessation of tracheid production. Holzforschung 55: 128-134.
CrossRef | Gscholar
Development and validation of a reversed-phase liquid chromatography method for the simultaneous determination of indole-3-acetic acid, indole-3-pyruvic acid, and abscisic acid in barley (Hordeum vulgare L.). Journal of Analytical Methods in Chemistry 1: 1-6.
CrossRef | Gscholar
Seasonal cambial activity in Larix laricina saplings in relation to endogenous indol-3-ylacetic acid, sucrose, and coniferin. Forest Science 37: 953-958.
Gscholar
Polar auxin transport in the wood-forming tissues of hybrid aspen is under simultaneous control of developmental and environmental signals. Proceedings of the National Academy of Sciences USA 100: 10096-10101.
CrossRef | Gscholar
Cambial growth and auxin gradients. In: “Cell and molecular biology of wood formation” (Savidge RA, Barnett JR, Napir R eds). Bios Scientific Publishers, Oxford, pp. 169-188.
Gscholar
Plant Physiology (4th edn). Sinauer Associates Inc, Sunderland, UK, pp. 764.
Gscholar