Li Xia, He Xue-Li, Zhou Yong, Hou Yi-Ting, Zuo Yi-Ling
College of Life Science, Hebei University, Baoding, China.
College of Landscape Architecture and Tourism, Hebei Agricultural University, Baoding, China.
Front Plant Sci. 2019 Jul 11;10:903. doi: 10.3389/fpls.2019.00903. eCollection 2019.
, a species characterized by rapid growth and high drought resistance, has been used widely for vegetative restoration of arid regions in Northwest China that are prone to desertification. Desert soil is typically deficient in available water and the alleviation of drought stress to host plants by endophytes could be an efficient strategy to increase the success of desert restoration. With the objective to seek more beneficial symbionts that can be used in the revegetation strategies, we addressed the question whether can benefit from inoculation by dark septate endophytes (DSEs) isolated from other desert plants. We investigated the influences of four non-host DSE strains ( sp., sp., sp., and ) isolated from other desert plants on the performance of under different soil water conditions. Differences in plant performance, such as plant growth, antioxidant enzyme activities, carbon, nitrogen, and phosphorous concentration under all the treatments, were examined. Four DSE strains could colonize the roots of successfully, and they established a positive symbiosis with the host plants depending on DSE species and water availability. The greatest benefits of DSE inoculation occurred in water stress treatment. Specifically, sp. and sp. improved the root biomass, total biomass, nutrient concentration, and antioxidant enzyme activities of host plants under water deficit conditions. These data contribute to the understanding of the ecological function of DSE fungi in drylands.
一种以生长迅速和高抗旱性为特征的物种，已被广泛用于中国西北易沙漠化干旱地区的植被恢复。沙漠土壤通常缺乏有效水分，内生菌减轻宿主植物的干旱胁迫可能是提高沙漠恢复成功率的有效策略。为了寻找可用于植被恢复策略的更有益共生体，我们探讨了[物种名称]是否能从接种从其他沙漠植物分离的深色有隔内生菌（DSE）中受益。我们研究了从其他沙漠植物分离的四种非宿主DSE菌株（[菌株名称1]、[菌株名称2]、[菌株名称3]和[菌株名称4]）在不同土壤水分条件下对[物种名称]生长表现的影响。考察了所有处理下植物生长表现的差异，如植物生长、抗氧化酶活性、碳、氮和磷浓度。四种DSE菌株能够成功定殖于[物种名称]的根部，并且它们根据DSE种类和水分有效性与宿主植物建立了积极的共生关系。接种DSE的最大益处出现在水分胁迫处理中。具体而言，[菌株名称1]和[菌株名称2]在水分亏缺条件下提高了宿主植物的根生物量、总生物量、养分浓度和抗氧化酶活性。这些数据有助于理解DSE真菌在旱地的生态功能。
