ABSTRACT The application of microorganisms in crops has been proposed as a strategy to cope with adverse environmental conditions. Two separate experiments (I and II) were carried out in laurustinus plants in field conditions. For each experiment, half of the plants were irrigated with control water (C, EC <0.9 dS m−1) and the other half with reclaimed wastewater (RW, EC: 6 dS m−1). In experiment I, for each irrigation treatment, half of the plants were inoculated with Glomus iranicum (AMF). In experiment II, for each irrigation treatment, half of the plants were inoculated with a rhizosphere microbial complex (RMC). In experiment I, AMF increased leaf Ca/Na ratio and reduced leaf Cl concentration. In addition, stem water potential was enhanced in plants subjected to RW. Stomatal conductance was also improved by AMF in plants subjected to C and RW treatments. In experiment II, leaf K/Na and Ca/Na ratios were increased and leaf Cl concentration was reduced by RMC. The RMC increased stem water potential and relative chlorophyll content in both irrigation treatments. Under RW irrigation, plants with RMC showed better leaf stomatal conductance. These results highlight the importance of studying the microorganisms/species interaction in order to select the best combination.

中文翻译：

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菌根或复合菌接种对再生水灌溉月桂属植物的影响

摘要 微生物在作物中的应用已被提出作为应对不利环境条件的一种策略。在田间条件下在月桂属植物中进行了两个独立的实验（I 和 II）。对于每个实验，一半的植物用对照水灌溉（C，EC <0.9 dS m-1），另一半用再生废水（RW，EC：6 dS m-1）。在实验 I 中，对于每次灌溉处理，一半的植物都接种了 Glomus iranicum (AMF)。在实验 II 中，对于每次灌溉处理，一半的植物接种根际微生物复合物 (RMC)。在实验 I 中，AMF 增加了叶片 Ca/Na 比并降低了叶片 Cl 浓度。此外，经受 RW 的植物的茎水势增强。在接受 C 和 RW 处理的植物中，AMF 也改善了气孔导度。在实验 II 中，RMC 提高了叶片 K/Na 和 Ca/Na 比率，降低了叶片 Cl 浓度。RMC 增加了两种灌溉处理中的茎水势和相对叶绿素含量。在 RW 灌溉下，具有 RMC 的植物表现出更好的叶片气孔导度。这些结果强调了研究微生物/物种相互作用以选择最佳组合的重要性。