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首页> 外文期刊>Ecotropica >Red abaxial coloring reduces herbivory in Columnea consanguinea.
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Red abaxial coloring reduces herbivory in Columnea consanguinea.

机译：红色背面着色减少了 Columnea consanguinea 中的草食动物。

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摘要

Many plants have leaves with red coloration caused by anthocyanins. Anthocyanins may perform multiple functions for the plant but few of the hypothesized benefits have been rigorously tested. We tested the hypothesis that leaf herbivory on Columned consanguinea is reduced by the presence of red abaxial spots. We compared herbivory on leaves with and without red spots while taking into account several potential covariates. Herbivory was significantly reduced on leaves with red spots and this benefit increased with spot size. The additional variation in herbivory was explained by branch volume, a measure of plant age and size, and not by any other potential covariate. A feeding trial confirmed that katydids avoid consuming leaf tissue with anthocyanins. We do not reject other hypothesized benefits of anthocyanins but suggest that anthocyanins may provide plants with multiple benefits.
机译：许多植物的叶子因花色苷引起红色。花青素可以为植物发挥多种功能，但是很少有人假设的益处已经过严格测试。我们测试了这样的假说，即红色的背面斑点减少了圆柱状尖吻虾上的叶片食草。我们在考虑了一些潜在的协变量的同时，比较了有无红点的叶片上的食草性。带有红色斑点的叶片上的草食性显着降低，并且这种好处随着斑点大小的增加而增加。草食动物的其他变异是通过分支体积，植物年龄和大小的度量来解释的，而不是通过其他潜在的协变量来解释的。一项饲喂试验证实，katydids避免将花色苷与叶片组织一起食用。我们不拒绝花色苷的其他假定好处，但建议花色苷可能为植物提供多种好处。

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