Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.

Woody cells, such as tracheids, fibers, vessels, rays etc., have unique structural characteristics such as nano-scale ultrastructure represented by multilayers, microfibril angle (MFA), micro-scale anatomical properties and spatial arrangement. Simultaneous evaluation of the above indices is very im...

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Main Authors: Yusuke Kita, Tatsuya Awano, Arata Yoshinaga, Junji Sugiyama
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0277616
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author Yusuke Kita
Tatsuya Awano
Arata Yoshinaga
Junji Sugiyama
author_facet Yusuke Kita
Tatsuya Awano
Arata Yoshinaga
Junji Sugiyama
author_sort Yusuke Kita
collection DOAJ
description Woody cells, such as tracheids, fibers, vessels, rays etc., have unique structural characteristics such as nano-scale ultrastructure represented by multilayers, microfibril angle (MFA), micro-scale anatomical properties and spatial arrangement. Simultaneous evaluation of the above indices is very important for their adequate quantification and extracting the effects of external stimuli from them. However, it is difficult in general to achieve the above only by traditional methodologies. To overcome the above point, a new methodological framework combining polarization optical microscopy, fluorescence microscopy, and image segmentation is proposed. The framework was tested to a model softwood species, Chamaecyparis obtusa for characterizing intra-annual transition of MFA and tracheid morphology in a radial file unit. According our result, this framework successfully traced the both characteristics tracheid by tracheid and revealed the high correlation (|r| > 0.5) between S2 microfibril angles and tracheidal morphology (lumen radial diameter, tangential wall thickness and cell wall occupancy). In addition, radial file based evaluation firstly revealed their complex transitional behavior in transition and latewood. The proposed framework has great potential as one of the unique tools to provide detailed insights into heterogeneity of intra and inter-cells in the wide field of view through the simultaneous evaluation of cells' ultrastructure and morphological properties.
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spelling doaj.art-6ce324c5986d44dfa5f025e57b6997332023-01-08T05:31:53ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011711e027761610.1371/journal.pone.0277616Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.Yusuke KitaTatsuya AwanoArata YoshinagaJunji SugiyamaWoody cells, such as tracheids, fibers, vessels, rays etc., have unique structural characteristics such as nano-scale ultrastructure represented by multilayers, microfibril angle (MFA), micro-scale anatomical properties and spatial arrangement. Simultaneous evaluation of the above indices is very important for their adequate quantification and extracting the effects of external stimuli from them. However, it is difficult in general to achieve the above only by traditional methodologies. To overcome the above point, a new methodological framework combining polarization optical microscopy, fluorescence microscopy, and image segmentation is proposed. The framework was tested to a model softwood species, Chamaecyparis obtusa for characterizing intra-annual transition of MFA and tracheid morphology in a radial file unit. According our result, this framework successfully traced the both characteristics tracheid by tracheid and revealed the high correlation (|r| > 0.5) between S2 microfibril angles and tracheidal morphology (lumen radial diameter, tangential wall thickness and cell wall occupancy). In addition, radial file based evaluation firstly revealed their complex transitional behavior in transition and latewood. The proposed framework has great potential as one of the unique tools to provide detailed insights into heterogeneity of intra and inter-cells in the wide field of view through the simultaneous evaluation of cells' ultrastructure and morphological properties.https://doi.org/10.1371/journal.pone.0277616
spellingShingle Yusuke Kita
Tatsuya Awano
Arata Yoshinaga
Junji Sugiyama
Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
PLoS ONE
title Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
title_full Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
title_fullStr Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
title_full_unstemmed Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
title_short Intra-annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy-based imaging.
title_sort intra annual fluctuation in morphology and microfibril angle of tracheids revealed by novel microscopy based imaging
url https://doi.org/10.1371/journal.pone.0277616
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