Crop resistance traits modify the effects of an aboveground herbivore, brown planthopper, on soil microbial biomass and nematode community via changes to plant performance
Crop resistance traits modify the effects of an aboveground herbivore, brown planthopper, on soil microbial biomass and nematode community via changes to plant performance
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作物抗性性状通过改变植物性能来改变地上食草动物褐飞虱对土壤微生物生物量和线虫群落的影响
DOI：
10.1016/j.soilbio.2012.02.022
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发表时间：
2012-06
影响因子：
9.7
通讯作者：
Hu, Feng
中科院分区：
文献类型：
--
作者：
Griffiths, Bryan S.;Chen, Xiaoyun;Johnson, Scott N.;Hu, Feng
植物介导的地上草食动物对地下生态系统的影响是有据可查的，但很少有人关注农业生态系统，特别是如何与不同性状的作物品种（即抗害虫）塑造这种相互作用。以4个抗虫性不同的水稻品种为材料，采用完全析因设计，在有无地上部害虫褐飞虱（Nilaparvata lugens）的条件下，验证了两个假设：（1）地上部害虫通过改变水稻植株生长和土壤资源利用率影响土壤微生物生物量和线虫群落;（2）害虫效应取决于品种的抗虫性。我们的研究结果表明，品种抗性介导的植食强度和植食植物的性能的影响。N.褐飞虱在感病品种上取食时降低了土壤资源（可溶性糖、氨基酸、有机酸、溶解性有机碳和氮）、微生物生物量和噬菌体的百分比，但在抗病品种上增加了它们。然而，总线虫丰度和植物寄生线虫的百分比以相反的方式响应，增加下的敏感品种和抗性品种下减少。在地上取食之前，植物寄生物在抗性品种下的发育可能有助于其抗性性状的形成。我们的研究结果提供了证据，N。褐飞虱显著逆转了不同抗性品种的土壤资源可用性、微生物生物量和线虫群落结构（丰度和营养组成）的模式。在地上害虫存在的情况下，农艺上使用抗病水稻品种还可以控制植物寄生虫种群，提高土壤资源利用率，并进一步扩展到土壤食物网的更高营养级。
Plant-mediated effects of aboveground herbivory on the belowground ecosystem are well documented, but less attention has been paid to agro-ecosystems and in particular how crop cultivars with different traits (i.e. resistance to pests) shape such interactions. A fully factorial experiment was conducted using four rice cultivars with different insect-resistance, with and without the aboveground herbivore Nilaparvata lugens (brown planthopper), and to test two hypotheses (1) aboveground herbivory affects the soil microbial biomass and nematode community by altering plant performance and soil resource availability and (2) herbivory effects will depend on cultivar resistance traits. Our results suggested that cultivar resistance mediated both herbivory intensity and herbivore effects on plant performance. N. lugens decreased the availability of soil resources (soluble sugars, amino acids, organic acids, dissolved organic carbon and nitrogen), microbial biomass and percentages of bacterivores when feeding on a susceptible cultivar but increased them in a resistant cultivar. However, total nematode abundance and the percentage of plant-parasitic nematodes responded in the opposite way, increasing under a susceptible cultivar and decreasing under a resistant cultivar. The development of plant-parasites under resistant cultivars before aboveground herbivory might contribute to their resistance traits. Our findings provide evidence that N. lugens significantly reversed the pattern of soil resource availability, microbial biomass and nematode community structure (abundance and trophic composition) across cultivars with distinct resistance. In the presence of aboveground pests, the agronomic use of resistant rice cultivars could also control populations of plant-parasites and promote soil resource availability, further extended to higher trophic level of soil food web.
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影响因子：
9.7
作者：
Lynne M. Macdonald;E. Paterson;Lorna A. Dawson;A.James S. McDonald
通讯作者：
Lynne M. Macdonald;E. Paterson;Lorna A. Dawson;A.James S. McDonald
影响因子：
4.2
作者：
Hardoim PR;Andreote FD;Reinhold-Hurek B;Sessitsch A;van Overbeek LS;van Elsas JD
通讯作者：
van Elsas JD
影响因子：
3.8
作者：
Susanne Wurst;W. H. Putten
通讯作者：
Susanne Wurst;W. H. Putten
DOI：
10.1111/j.1469-8137.2009.03016.x
发表时间：
2009-11
期刊：
The New phytologist
影响因子：
--
作者：
Christopher M. Sthultz;T. Whitham;K. Kennedy;Ron J. Deckert;C. Gehring
通讯作者：
Christopher M. Sthultz;T. Whitham;K. Kennedy;Ron J. Deckert;C. Gehring
影响因子：
2.2
作者：
Watanabe, T;Kitagawa, H
通讯作者：
Kitagawa, H