Mechanisms of tolerance to herbivore damage:what do we know?
Mechanisms of tolerance to herbivore damage:what do we know?
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DOI：
10.1023/a:1010881317261
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发表时间：
2000-07
影响因子：
1.9
通讯作者：
P. Tiffin
中科院分区：
文献类型：
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作者：
P. Tiffin
确定对食草动物伤害的耐受性机制将有助于理解耐受性在植物和食草动物的进化和生态动力学中的作用。对植物对草食伤害的生理和形态变化的研究已经确定了几种潜在的耐受性机制。然而，损伤后发生的所有生理变化不太可能都是耐受机制。很少有研究直接比较耐受性的表达与推测机制的相对表达。我简要地回顾了一些研究得更好的潜在机制的经验证据，包括增加光合活性、代偿生长、储存储量的利用和物候延迟。对于每一种机制，我都讨论了为什么耐受性和这些特性之间的关系可能比最初看起来更复杂的原因。最后，我讨论了几种经验方法，包括草食动物操作，数量性状位点（QTL）分析和选择实验，这将进一步加深我们对耐受性机制的理解。
Identifying mechanisms of tolerance to herbivore damage will facilitate attempts to understand the role of tolerance in the evolutionary and ecological dynamics of plants and herbivores. Investigations of the physiological and morphological changes that occur in plants in response to herbivore damage have identified several potential mechanisms of tolerance. However, it is unlikely that all physiological changes that occur following damage are tolerance mechanisms. Few studies have made direct comparisons between the expression of tolerance and the relative expression of putative mechanisms. I briefly review empirical evidence for some of the better-studied potential mechanisms, including increased photosynthetic activity, compensatory growth, utilization of stored reserves, and phenological delays. For each of these mechanisms I discuss reasons why the relationship between tolerance and these characters may be more complicated than it first appears. I conclude by discussing several empirical approaches, including herbivore manipulations, quantitative trait loci (QTL) analysis, and selection experiments, that will further our understanding of tolerance mechanisms.