Larval Tunnels of Phytobia betulae (Diptera: Agromyzidae) in Birch Wood
Larval Tunnels of Phytobia betulae (Diptera: Agromyzidae) in Birch Wood
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桦木中的桦木（双翅目：农杆菌科）幼虫隧道
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Matti Housi
中科院分区：
文献类型：
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作者：
T. Ylioja;P. Saranpää;H. Roininen;Matti Housi
植蝇幼虫的隧道。对胶合板和桦木（桦木属）木材造成美学损害。让木头变色这些隧道在木材表面呈现为棕色条纹。幼虫地雷可以通过仔细地去除树皮和覆盖隧道的薄层木材来观察。从29个老桦树和71个年轻的桦树树皮被删除，研究Phytobia的生物学和幼虫隧道的结构。大部分的隧道开始以上的最低生活分支的主机树，和他们的10.1/3继续向下的根。所有的出口孔被发现在宽隧道的尽头，并位于树的基础或在根。植物菌幼虫生活在受保护的生活中：它们在形成层和木质部木质部分子之间的分化木质部区域中挖掘，并且它们必须到达宿主的基部和根部才能完成它们的发育。矿变得充满厚壁薄壁细胞储存脂质。幼虫不影响树木的生长和存活。高幼虫死亡率可能与树径生长停止有关。
Larval tunnels of Phytobia spp. cause esthetic damage to plywood and timber of birch ( Betula spp.) by discoloring the wood. These tunnels appear as brown stripes on the surface of the wood. Larval mines can be observed by carefully removing the bark and the thin layer of wood covering the tunnels. The bark from 29 older and 71 younger birch trees was removed to study the biology of Phytobia and the structure of larval tunnels. Most of the tunnels started above the lowest living branch of the host tree, and≃ 1/3 of them continued down to the roots. All exit holes were found at the end of wide tunnels and were situated either at the tree base or in the roots. Phytobia larvae live a protected life: they mine in the zone of differentiating xylem between the cambium and the lignified xylem elements, and they must reach the base and roots of the host to complete their development. Mines become filled with thick-walled parenchyma cells that store lipids. Larvae did not affect tree growth and survival. High larval mortality may be related to cessation of diameter growth of the tree.