Effect of arbuscular mycorrhizal colonisation on the growth and phosphorus nutrition of Populus euramericana c.v. Ghoy
Effect of arbuscular mycorrhizal colonisation on the growth and phosphorus nutrition of Populus euramericana c.v. Ghoy
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DOI：
10.1016/j.biombioe.2011.08.015
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发表时间：
2011-11-01
影响因子：
6
通讯作者：
Hodge, A.
中科院分区：
文献类型：
--
作者：
Rooney, D. C.;Prosser, J. I.;Hodge, A.
已知丛枝菌根(AM)真菌与一系列杨树物种有关，特别是在发育的早期阶段，但关于它们在可持续生物质生产中的潜在作用的信息很少。此外，虽然AM协会可以促进植物的建立、生长和营养，但不同的AM真菌(AMF)提供这些好处的能力不同。在本研究中，我们研究了四种不同的AMP对欧美杨生长和磷营养的影响。鬼怪。植物的生物量，特别是根的生物量，通常会因AMP的侵染而减少，而且这种减少的程度因根部的AMP种类而异。这种生长减少不仅仅是由于根部定植的差异，在105d的实验结束时，根定植的差异从59%到71%，并且在所筛选的AMF中没有变化。在生长105d后，部分AMP处理的磷含量也低于非AMF对照，但地上组织(茎和叶)中的P浓度高于非AMF对照。讨论了AMP与杨树在退耕还林系统中可能的相互作用。(C)2011爱思唯尔有限公司。保留所有权利。
Arbuscular mycorrhizal (AM) fungi are known to associate with a range of Populus species particularly in the early stages of development yet there is little information on their potential role in sustainable biomass production. Moreover, while the AM association may enhance plant establishment, growth and nutrition, different AM fungi (AMF) vary in their ability to confer such benefits. In this study we investigated the impact of four different AMP on growth and phosphorus nutrition of Populus euramericana c.v. Ghoy. Plant biomass, particularly root biomass, was generally reduced by AMP colonisation and the extent of this reduction varied with the AMP species that had colonised the roots. This growth reduction was not simply due to differences in root colonisation, which ranged from 59 to 71% by the end of the experiment at 105 d and did not vary among the AMF screened. Phosphorus content was also lower in some AMP treatments than in non-AMF controls after growth for 105 d although P concentration in aboveground tissues (stems and leaves) was higher. The possible interaction between AMP and poplar in converted arable systems is discussed. (C) 2011 Elsevier Ltd. All rights reserved.