Author:
Dong Fengxin,Wang Yihan,Tao Jing,Xu Tingying,Tang Ming
Abstract
IntroductionSaline-alkali stress seriously endangers the normal growth of Populus simonii×P. nigra. Arbuscular mycorrhizal (AM) fungi can enhance the saline-alkali tolerance of plants by establishing a symbiotic relationship with them.MethodsIn this study, a pot experiment was conducted to simulate a saline-alkali environment where Populus simonii×P. nigra were inoculated with Funneliformis mosseae to explore their effects on the saline-alkali tolerance of Populus simonii×P. nigra.Results and DiscussionOur results show that a total of 8 NHX gene family members are identified in Populus simonii×P. nigra. F. mosseae regulate the distribution of Na+ by inducing the expression of PxNHXs. The pH value of poplar rhizosphere soil is reduced, result in the promote absorption of Na+ by poplar, that ultimately improved the soil environment. Under saline-alkali stress, F. mosseae improve the chlorophyll fluorescence and photosynthetic parameters of poplar, promote the absorption of water, K+ and Ca2+, thus increase the plant height and fresh weight of aboveground parts, and promote the growth of poplar. Our results provide a theoretical basis for further exploring the application of AM fungi to improve the saline-alkali tolerance of plants.
Funder
National Natural Science Foundation of China
National Key Research and Development Program of China
Reference58 articles.
1. Arbuscular mycorrhizal symbiosis regulates the physiological responses, ion distribution and relevant gene expression to trigger salt stress tolerance in pistachio;Abbaspour;Physiol. Mol. Biol. Plants,2021
2. Pomegranate growth affected by arbuscular mycorrhizae, phosphorus fertilizer, and irrigation water aalinity;Arab;Commun. Soil Sci. Plant Anal.,2018
3. The role of na+ and k+ transporters in salt stress adaptation in glycophytes;Assaha;Front. Physiol.,2017
4. Glycinebetaine improved photosynthesis in canola under salt stress: evaluation of chlorophyll fluorescence parameters as potential indicators;Athar;J. Agron. Crop Sci.,2015
5. Impact of arbuscular mycorrhizal fungi on photosynthesis, water status, and gas exchange of plants under salt stress-a meta-analysis;Chandrasekaran;Front. Plant Sci.,2019
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