Herbivore‐induced changes in fruit–frugivore interactions
Herbivore‐induced changes in fruit–frugivore interactions
复制标题
食草动物引起的水果与食果动物相互作用的变化
DOI：
10.1111/j.1365-2745.2011.01819.x
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发表时间：
2011
影响因子：
5.5
通讯作者：
K. Poveda
中科院分区：
文献类型：
--
作者：
Whitehead S;K. Poveda
1.食草动物的攻击会引起植物化学防御的剧烈变化。这些反应保护植物免受未来草食的侵害，但也可能有重要的生理和生态代价。最近，防御的生态成本受到了理论界的关注；然而，许多提议的成本尚未得到实证证明。特别是，关于叶片的诱导反应是否会导致果实适口性的相关变化，从而减少共生种子传播者对果实的去除，田间数据缺乏。以热带灌木Hamelia patens（Rubiaceae）为研究对象，研究了对其叶片进行不同处理（包括草食、机械损伤和茉莉酸甲酯（MeJA））后果实去除、适口性和成熟时间的变化。与对照组相比，草食处理和MeJA处理的树枝上的果实较少，蚂蚁和真菌的三次生物测定结果表明，这种反应是由果实适口性的变化介导的。此外，MeJA处理过的枝条的果实比对照枝条成熟得更快。综上所述，我们的研究结果提供了新的证据，表明对草食的诱导反应可以通过两种机制影响果实与果食性的相互作用：水果适口性的变化和果实发育时间的变化。这突出了叶片和果实性状之间的生理联系在决定植物防御的总体成本和多物种相互作用的适应度结果方面的重要性。
1.Herbivore attack can induce dramatic changes in plant chemical defences. These responses protect plants against future herbivory, but can also have important physiological and ecological costs. Ecological costs of defence have received recent theoretical attention; however, many proposed costs have not yet been demonstrated empirically. In particular, field data are lacking as to whether induced responses in leaves can lead to correlated changes in fruit palatability that reduce fruit removal by mutualist seed dispersers.2.Using the tropical shrub,Hamelia patens(Rubiaceae), we examined changes in fruit removal, palatability and maturation time following various treatments to the subtending leaves, including herbivory, mechanical damage and/or application of methyl jasmonate (MeJA).3.Fewer fruits were removed from herbivory‐ and MeJA‐treated branches than from controls, and results from three bioassays with ants and fungi suggested that this response was mediated by changes in fruit palatability. In addition, fruits from MeJA‐treated branches matured more quickly than those from control branches.4.Synthesis.Taken together, our results provide novel evidence that induced responses to herbivory can affect fruit–frugivore interactions through two mechanisms: changes in fruit palatability and changes in fruit development time. This highlights the importance of physiological linkages between leaf and fruit traits in determining the overall costs of plant defence and the fitness outcomes of multispecies interactions.
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影响因子：
2.7
作者：
A. McCall;R. Karban
通讯作者：
R. Karban
影响因子：
2.9
作者：
Eriksson, O;Ehrlen, J
通讯作者：
Ehrlen, J
影响因子：
2.7
作者：
BALDWIN, IT;SCHMELZ, EA
通讯作者：
SCHMELZ, EA
测试防御权衡假设：营养物质和次级化合物的含量如何影响果实去除
DOI：
--
发表时间：
2003
期刊：
影响因子：
--
作者：
H. Schaefer;V. Schmidt;H. Winkler
通讯作者：
H. Winkler
影响因子：
--
作者：
A. Greller;L. McDade;K. Bawa;H. Hespenheide;G. Hartshorn
通讯作者：
A. Greller;L. McDade;K. Bawa;H. Hespenheide;G. Hartshorn