Anatomical Comparison Between Compression Wood and Opposite Wood in a Branch of Korean Pine (Pinus Koraiensis)

Lee, Phil Woo; Eom, Young Geun

doi:10.1163/22941932-90001077

Cited by 25 publications

(8 citation statements)

References 9 publications

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“…In this study, it was found that the CWD of both species showed distinctive crossfield pitting types with those of LWD and OWD, whereas LWD and OWD showed comparable characteristics, consistent with the results of several studies. As reported by Lee and Eom (1988), in the branch wood of Pinus koraiensis, CWD shows narrower and steeper pit apertures in the cross field than those of OWD. In the cross-field of Pinus radiata, piceoid pits in CWD and pinoid pits in OWD and LWD have been observed (Eom and Butterfield 1997).…”

Section: Cross-field Pitting Typesupporting

confidence: 63%

Cross-field pitting characteristics of reaction wood in the stem wood of Pinus merkusii and Agathis loranthifolia

Purusatama,

Kim

2024

BioRes

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This research investigated and compared the pitting type, pit number (PN), and pit diameter (PD) in the cross-field of compression wood (CWD), lateral wood (LWD), and opposite wood (OWD) in stem wood of Pinus merkusii and Agathis loranthifolia growing in Indonesia. Identification and quality evaluation were done using optical and scanning electron microscopy. A piceoid pit type was observed in the CWD of both species. The LWD and OWD of P. merkusii showed window-like and pinoid pits, whereas those of A. loranthifolia showed taxodioid and cupressoid pits. The PN and PD were the smallest in CWD of both species. In P. merkusii, LWD and OWD showed similar PN values, and PN in all parts increased from the pith to the bark. In A. loranthifolia, LWD had higher PN than in OWD, and PN in CWD and LWD decreased from near the pith to the bark, whereas in OWD, it increased. All parts of P. merkusii and CWD and OWD of A. loranthifolia showed a positive correlation between PN and radial tracheid diameter, whereas LWD showed a negative correlation. In P. merkusii, the PD of LWD approximated that of OWD, whereas, in A. loranthifolia, LWD had a larger PD than that exhibited by OWD.

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Section: Cross-field Pitting Typesupporting

confidence: 63%

Cross-field pitting characteristics of reaction wood in the stem wood of Pinus merkusii and Agathis loranthifolia

Purusatama,

Kim

2024

BioRes

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“…8, helical cavities occurred in the tracheid wall of CW from both species, but the helical ribs only occurred in the CW of Sumatran pine. As Timell (1986) reported, the helical cavities occurred in the tangential wall of CW of Pinus resinosa, Larix laricina, and Pseudotsuga menziesii. revealed that the CW of Gingko biloba showed helical cavities in the tangential section.…”

Section: Tangential Sectionsupporting

confidence: 62%

“…and Araucaria spp. Timell (1986) also mentioned that helical cavities were absent in CW of Agathis robusta. As reported by Pandit and Rahayu (2007), the CW of Agathis loranthifolia showed a circular shape tracheid in the transverse surface and helical cavities in the radial section.…”

Section: Introductionmentioning

confidence: 99%

Qualitative Anatomical Characteristics of Compression, Lateral, and Opposite Woods in Pinus merkusii and Agathis loranthifolia

Purusatama

Kim

Yang

et al. 2021

JSL

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This study aimed to observe andcompare the qualitative anatomical characteristics of compression (CW), lateral (LW), and opposite (OW) woodsin the stem wood of Sumatran pine (Pinus merkusii) and Agathis (Agathis loranthifolia). The anatomical characteristics were observed using optical microscopy and scanning electron microscopy. CW showed a gradual transition from earlywood to latewood in both species, circular tracheid shape, many intercellular spaces, irregular tracheid tips, helical cavities, and slit-like bordered pits. CW of Sumatran pine showed an indistinct growth ring, whileCW of Agathis showed a distinct growth ring. Helical ribs occurred only in CW of Sumatran pine. LW and OW showed an oval tracheid with an angular outline, regular tracheid arrangement, and tapered tracheid tips in both species. LW and OW showed mainly uniseriate bordered pits in Sumatran pine, while LW and OW of Agathis frequently showed multiseriatebordered pits. CW, LW, and OW showed fusiform and uniseriate rays in Sumatran pine, while those of Agathis showed uniseriate rays. In conclusion, CW showed distinctive qualitative anatomical characteristics to LW and OW in both species, while LW and OW mainly showed similar characteristics. In particular, there were considerably distinctive characteristics between CW from both species.Keywords: Agathis, anatomical characteristics, reaction wood, Sumatran pine

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“…When considering the occurrence of resin ducts in compression wood, it should be noted that although Lee and Eom (1988) saw traumatic vertical resin ducts in Pinus koraiensis compression wood, this feature does not appear to be a consistent characteristic of compression wood. In species with resin ducts in secondary xylem, large areas with severe compression wood that fill the entire increment of secondary xylem often have no resin ducts, but in small areas of transient compression wood or in mild compression wood, resin ducts normally appear ( Donaldson and Singh, 2013 ).…”

Section: Resin Ducts In the Secondary Xylem Of Coniferous Treesmentioning

confidence: 99%

An arrangement of secretory cells involved in the formation and storage of resin in tracheid-based secondary xylem of arborescent plants

Tulik,

Jura-Morawiec

2023

Front. Plant Sci.

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The evolution of the vascular system has led to the formation of conducting and supporting elements and those that are involved in the mechanisms of storage and defense against the influence of biotic and abiotic factors. In the case of the latter, the general evolutionary trend was probably related to a change in their arrangement, i.e. from cells scattered throughout the tissue to cells organized into ducts or cavities. These cells, regardless of whether they occur alone or in a cellular structure, are an important defense element of trees, having the ability to synthesize, among others, natural resins. In the tracheid-based secondary xylem of gymnosperms, the resin ducts, which consist of secretory cells, are of two types: axial, interspersed between the tracheids, and radial, carried in some rays. They are interconnected and form a continuous system. On the other hand, in the tracheid-based secondary xylem of monocotyledons, the resin-producing secretory cells do not form specialized structures. This review summarizes knowledge on the morpho-anatomical features of various types of resin-releasing secretory cells in relation to their: (i) location, (ii) origin, (iii) mechanism of formation, (iv) and ecological significance.

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Anatomical Comparison Between Compression Wood and Opposite Wood in a Branch of Korean Pine (Pinus Koraiensis)

Abstract: Compression wood and opposite wood formed in the branch of Korean pine (Pinus koraiensis S. et Z.) is described and compared in qualitative and quantitative anatomical aspects.

Cited by 25 publications

References 9 publications

Cross-field pitting characteristics of reaction wood in the stem wood of Pinus merkusii and Agathis loranthifolia

Cross-field pitting characteristics of reaction wood in the stem wood of Pinus merkusii and Agathis loranthifolia

Qualitative Anatomical Characteristics of Compression, Lateral, and Opposite Woods in Pinus merkusii and Agathis loranthifolia

An arrangement of secretory cells involved in the formation and storage of resin in tracheid-based secondary xylem of arborescent plants

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