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首页> 外文期刊>Journal of Tropical Forest Science >Mycotrophic strategy of 13 common neotropical trees and shrubs.
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Mycotrophic strategy of 13 common neotropical trees and shrubs.

机译：13种常见新热带树木和灌木的营养营养策略。

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摘要

We conducted a greenhouse experiment using common Puerto Rican trees and shrubs that span the spectrum of neotropic life histories. Our working hypothesis was that species had a higher colonisation rate of arbuscular mycorrhizal fungi (AMF) as they established further and further after a disturbance (quantified as increasing seed size). Results suggested that (1) Cecropia schreberiana and Schefflera morototoni were weakly-facultative mycorrhizal, (2) Casearia arborea, Inga laurina and Guarea guidonia were strongly-facultative mycorrhizal and (3) Piper glabrescens, Tabebuia heterophylla, Palicourea riparia, Buchenaria capitata and Dacryodes excelsa were obligately mycorrhizal with (4) Psychotria berteriana, Prestoea montana and Manilkara bidentata also obligate but at a reduced level. In general, these species were adapted to low inorganic phosphorus, colonised well with AMF and agreed with our working hypothesis; however, three shrub species (Piper, Palicourea, Psychotria) did not. Finally, we also found that shade tolerance of the test species corresponded with the AMF results better than their wood density or drought tolerance.
机译：我们使用波多黎各人的普通树木和灌木进行了温室实验，这些树木和灌木覆盖了新近生活的历史。我们的工作假设是，物种在受到干扰后越来越多地建立（量化为种子大小增加）时，其丛枝菌根真菌（AMF）的定殖率更高。结果表明：（1）schreopiaiana schreberiana和Schefflera morototoni是弱兼性菌根，（2）Casearia arborea，Inga laurina和Guarea guidonia是强兼性菌根，以及（3）Piper glabrescens，Tabubuiasphylsaria，Palicoureac riparia excelsa专心致菌菌根（4）Psychotria berteriana，Prestoea montana和Manilkara bidentata也专心，但含量降低。总的来说，这些物种适应低无机磷，在AMF上很好地定居，并与我们的工作假设相符。但是，没有三种灌木（Piper，Palicourea，Psychotria）。最后，我们还发现，测试物种的耐荫性与AMF结果相符，优于其木材密度或耐旱性。

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