Indole-3-acetic acid and ball gall development on Solidago altissima
Indole-3-acetic acid and ball gall development on Solidago altissima
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DOI：
10.1046/j.1469-8137.2001.00161.x
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发表时间：
2001-07-01
期刊：
影响因子：
9.4
通讯作者：
Davies, PJ
中科院分区：
文献类型：
--
作者：
Mapes, CC;Davies, PJ
为了深入了解一枝黄花（Solidagoaltissima）球瘿形成的机制，报道了实蝇（Eurostasolidaginis）的球瘿、茎组织和成瘿幼虫中吲哚-3-乙酸（IAA）的浓度。以[C-13（6）]-IAA为内标，以单位茎长的重量为基础，虫瘿组织中IAA的含量高于茎组织，但以单位重量的重量为基础，虫瘿组织中IAA的含量并不高于茎组织。以1龄幼虫为材料，研究了E.在9 μ g（-1）F. wt或1.21 ng/幼虫，浓度比对照茎组织高33倍。早期从虫瘿中去除顶芽和叶片不影响呼叫的发展，并且在没有顶芽的情况下，在末端位置的虫瘿抑制侧芽的释放，这表明球瘿充当生长素的来源。solidaginis幼虫在给定长度的茎中产生的IAA含量比没有它时高。E.一枝黄花幼虫在球胆发育过程中可作为IAA的点源。(C)New Phytologist（2001）151：195-202.
Indole-3-acetic acid (IAA) concentrations are reported in ball galls, stem tissue, and in the gall-forming larvae of the tephritid fly Eurosta solidaginis, to gain insight into the mechanism of ball gall formation on the goldenrod, Solidago altissima.IAA was identified and quantified by gas chromatography-mass spectrometry, with [C-13(6)]-IAA as an internal standard.Concentrations of IAA were higher in gall tissues than in stem tissues on a weight per stem length basis, but not on a weight per weight basis. First instar larvae of E. solidaginis contained IAA at 9 mug g(-1) f. wt or 1.21 ng per larva, a concentration 33-times higher than in control stem tissues. Call development was unaffected by the early removal of the apical bud and leaves from galls, and lateral bud release was inhibited by galls in terminal positions in the absence of the apical bud, indicating that ball galls act as sources of auxin.The presence of an E. solidaginis larva results in higher amounts of IAA in a given length of stem than are found in its absence. E. solidaginis larvae may act as point sources of IAA in developing ball galls. (C) New Phytologist (2001) 151: 195-202.