Tomato roots can be colonized by both mycorrhizal fungi and the endophytic fungus Serendipita indica. This study was aimed at assessment of the impact of single or dual inoculation with R. irregularis and S. indica on tomato growth under saline conditions. We used signature compounds to estimate the abundance of each of these two fungi (fatty acid 16:1ω5 for R. irregularis and ergosterol for S. indica) in roots. A randomized block design was applied with four types of inoculation (no fungus, R. irregularis, S. indica or S. indica + R. irregularis) at different levels of salinity (1.2, 5, and 10 dS/m) with four replications per treatment. The plant dry weight was slightly higher in R. irregularis– than S. indica–inoculated plants, and the highest plant biomass was achieved with dual inoculation. R. irregularis increased the content of the neutral lipid fatty acid 16:1ω5 from 97 to 5300 nmol/g and phospholipid fatty acid 16:1ω5 from 8 to 141 nmol/g in roots (at a salinity level of 1.2 dS m⁻¹), but the increases were lower at higher levels of salinity. Moreover, both these arbuscular mycorrhizal fungal markers were slightly decreased in the presence of S. indica. Root ergosterol increased from 7 to 114 μg g⁻¹ with S. indica inoculation. With increasing salinity, the concentration of ergosterol in roots decreased. Inoculation with R. irregularis caused a decrease in root ergosterol. Increasing salinity resulted in an increase of Cl and Na in tomato shoots, but the increase was significantly lower in single- or dual-inoculated plants in contrast to the control plants.

中文翻译：

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与不规则根瘤菌和印度irregular齿菌共接种对番茄在盐分条件下的生长具有积极作用，并通过特征性脂质估计它们的单个定植。

菌根真菌和内生真菌Serendipita indica都可以定居番茄根。这项研究旨在评估在生理盐水条件下单次或两次接种不规则红杆菌和in麦对番茄生长的影响。我们使用特征性化合物估算根中这两种真菌（对于不规则R.的脂肪酸为16：1ω5，对于S. indica的麦角甾醇）的丰度。随机区组设计，用四种类型的接种的（无真菌，施加R. irregularis，S.籼稻或S.籼稻+ R. irregularis）在不同的盐度水平（1.2、5和10 dS / m），每种处理重复四次。植物干重略高在R. irregularis -比S.籼稻-inoculated植物，和最高的植物生物质，用双接种实现。R. irregularis增加了中性脂质脂肪酸16的内容：从97到1ω55300纳摩尔/克和磷脂脂肪酸16：1ω58至141纳摩尔/克根（以1.2 DS中的盐度等级M ^-1） ，但盐度较高时增加幅度较小。此外，在in链球菌的存在下，这两种丛枝菌根真菌标记都略有减少。根麦角固醇从7提高到114微克克^-1与in链球菌接种。随着盐度的增加，根中麦角固醇的浓度降低。接种不规则红球菌会导致根麦角固醇减少。盐度的增加导致番茄嫩芽中Cl和Na的增加，但是与对照植物相比，单接种或双重接种的植物中这种增加显着降低。