Elucidation of the participating mechanism of boron and boron compounds to the tree physiology and wood preservation

硼及硼化合物对树木生理和木材保存的参与机制的阐明

基本信息

批准号：
15580150
负责人：
MINATO Kazuya
金额：
$ 2.05万
依托单位：
Kyoto Prefectural University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15580150/
关键词：
kurogaki (blackened portion of persimmon)boron ebony heartwood formation black-heart of sugi adhesion tissue aloeswood 異常材カキノキ ICP分析腐朽

项目摘要

The boron contents in the blackened Japanese persimmon (kurogaki) and heartwood of ebony (Diospyros ebenum), and further those in the leaves and stems of young persimmon trees, which were grown under the control of boron content in fertilizer, were investigated in the first year (2003) of this project. It was found that there is a significant difference of boron contents between normal portion of all persimmon samples (boron content<10 ppm) and blackened portions (several tens ppm). Also for ebony, a clear difference between heartwood and sapwood was observed, which suggests the participation of boron to the heartwood formation. In the fertilizing test, the young persimmon tree grew soundly under the boron concentration less than ten times of the standard (54 ppm), however above 100 times of the standard, the injury due to excessive fertilizing of boron appeared. The boron contents of the injured stems and leaves were same level of the blackened portion of persimmon xylem.In the 2nd te … More rm of the project (2004), the relationships between boron content and heartwood formation, formation of abnormal tissue (i.e. black-heart in sugi (Cryptomeria japonica)), and adhesion tissue in aloes wood were investigated. For 13 species of Japanese and tropical hardwood and 2 species of softwood, significant difference in boron content was found between heartwood and sapwood. Exceptionally high boron content in the sapwood of inuenju (Maackia amurensis) suggested the contribution of wound by insect. The participation of boron to the black-heart of sugi was not found, because the boron content did not differ between normal heartwood and black-heart. Concerning the aloes wood, a part of sample showed high boron content suggesting the participation of boron to the formation of adhesion tissue for the recovery of injury.From these results, the blackening found in Diospyros genus is a unique phenomenon, and the mechanism of the formation of blacken portion is interesting in connection with the preservation of wood. Less

在该项目的第一年（2003年）研究了硼含量黑色的柿子（黑色柿子）和乌木（Diospyros ebenum）的硼含量（二波埃比纳姆）（Diospyros ebenum）（二波埃比纳姆）（Diospyros ebenum），而在该项目的第一年（2003年）调查了硼含量和台阶的硼含量。发现所有柿子样品（硼含量<10 ppm）的正常部分与变黑（几个ppm）之间存在硼含量的显着差异。同样对于乌木，观察到了心木和萨普伍德之间的明显差异，这表明鲍隆参与了心木形成。在受精测试中，年轻的柿子树在硼浓度下生长少于标准的十倍（54 ppm），但是标准的100倍以上，由于硼的施肥过多而造成的损伤出现了。受伤茎和叶的硼含量是柿子木质部的黑色部分的水平。对于13种日本和热带硬木以及2种软木，在Heartwood和Sapwood之间发现了硼含量的显着差异。 Inuenju（Maackia amurensis）Sapwood中的硼含量异常高，这表明昆虫的伤口贡献。找不到硼对Sugi黑人的参与，因为硼含量在正常的心脏和黑心之间没有差异。关于芦荟木，样品的一部分显示出很高的硼含量，这表明硼参与粘合组织的形成以恢复损伤。从这些结果中，在二旋氏病中发现的黑色是一种独特的现象，并且与木材制备相关的黑色部分的形成机制很有趣。较少的