毛松和刺叶松压缩木、侧木和对生木的定性解剖特征

IF 0.5 3区数学 Q3 LOGIC

Journal of Symbolic Logic Pub Date : 2021-05-30 DOI:10.23960/JSL29213-222

B. Purusatama, Jong-Ho Kim, G. Yang, F. Febrianto, W. Hidayat, Seung-Hwan Lee, Nam-Hun Kim

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引用次数: 3

摘要

本研究旨在观察和比较苏门答腊松(Pinus merkusii)和Agathis (Agathis loranthifolia)茎材的受压木(CW)、侧木(LW)和对生木(OW)的定性解剖学特征。采用光学显微镜和扫描电镜观察解剖特征。两种植物均表现出由早木向晚木逐渐过渡的特征，管胞形状为圆形，胞间空隙多，管胞尖端不规则，有螺旋状的空腔和裂隙状的有棱坑。苏门答腊松连续枝的年轮不明显，而黑松连续枝的年轮明显。螺旋棱只发生在苏门答腊松的连续枝上。两种植物的管胞均呈椭圆形，轮廓有棱角，管胞排列规则，管胞尖端逐渐变细。苏门答腊松的LW和OW多为单列边坑，而阿加松的LW和OW多为多列边坑。苏门答腊松的CW、LW和OW表现为梭形和单形射线，而阿加松则表现为单形射线。综上所述，两种植物的CW与LW和OW具有明显的定性解剖特征，而LW和OW主要表现出相似的特征。特别是，两种的连续枝有相当不同的特征。关键词:乌桕，解剖特征，反应木，苏门答腊松

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

This study aimed to observe and compare the qualitative anatomical characteristics of compression (CW) , lateral (LW) , and opposite (OW) woods in 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 pit s . CW of Sumatran pine showed an indistinct growth ring, while CW 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 multiseriate bordered pit s . 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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来源期刊

Journal of Symbolic Logic 数学-数学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Symbolic Logic publishes research in mathematical logic and its applications of the highest quality. Papers are expected to exhibit innovation and not merely be minor variations on established work. They should also be of interest to a broad audience. JSL has been, since its establishment in 1936, the leading journal in the world devoted to mathematical logic. Its prestige derives from its longevity and from the standard of submissions -- which, combined with the standards of reviewing, all contribute to the fact that it receives more citations than any other journal in logic.