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树瘤
维基百科,自由的 encyclopedia
树瘤(美式英语:Burl,英式英语:Burr)为大量芽体所构成的球型结构。此类异常的细胞在生长季节中异常增生快速且持续的时间长。
成因
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/94/%E5%8C%97%E4%BA%AC%E4%B8%AD%E5%B1%B1%E5%85%AC%E5%9B%AD_%E5%8D%83%E5%B9%B4%E5%8F%A4%E6%A0%91_%E6%A0%91%E7%98%A4.jpg/640px-%E5%8C%97%E4%BA%AC%E4%B8%AD%E5%B1%B1%E5%85%AC%E5%9B%AD_%E5%8D%83%E5%B9%B4%E5%8F%A4%E6%A0%91_%E6%A0%91%E7%98%A4.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Growth_on_tree_trunk_-_geograph.org.uk_-_724687.jpg/320px-Growth_on_tree_trunk_-_geograph.org.uk_-_724687.jpg)
树瘤是树木维管形成层中木质部的分裂异常所造成的,分裂时分裂方向不具规律性。导致原因为外部因子(细菌,病毒,真菌感染,可能是一些昆虫感染)干扰贺尔蒙所导致[1]。
图库
参考文献
- The biology of burls (PDF). 2012 [2017-11-01]. (原始内容存档 (PDF)于2020-11-12) (英语).
Template:树木视觉诊断