Inhibition of water conductivity caused by watermark disease in salix sachalinensis
Inhibition of water conductivity caused by watermark disease in salix sachalinensis
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DOI：
10.1163/22941932-90000236
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发表时间：
2000-01-01
期刊：
影响因子：
1.9
通讯作者：
Sano, Y
中科院分区：
文献类型：
--
作者：
Sakamoto, Y;Sano, Y
对遭受水纹病危害的沙柳木材的水分传导和木材解剖结构进行了研究。内部症状（水印）在边材中表现为棕色至棕黑色染色区。染料注入试验表明，水印没有发生水传导。然而，软X射线摄影和冷冻扫描电子显微镜显示，水印有很高的水分水平。水纹中部分导管被纤维素和细菌团块堵塞，部分射线薄壁细胞坏死。因此，边材中的非导电水印可以被认为类似于变色木材或湿木材。
Water conduction and wood anatomy of Salix sachalinensis attacked by watermark disease were investigated. The internal symptom, the watermark, appeared as a brown to brown-black stained zone in sapwood. Dye injection tests revealed that water conduction did not take place in the watermark. However, soft X-ray photography and cryoscanning electron microscopy revealed that the watermark had a high moisture level. In the watermark, some of the vessels were plugged with tyloses and masses of bacteria, and some of the ray parenchyma cell caused necrosis. Hence, the non-conductive watermark in sapwood can be considered similar to discoloured wood or wetwood.