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Marchantia polymorpha subsp. ruderalis (Bischl. & Boissel.-Dub.)-arbuscular mycorrhizal fungi interaction: beneficial or harmful?

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Abstract

Marchantia polymorpha is a common liverwort whose use as a model plant in physiological and evolutionary processes is increasing in recent years. As far as plant-microorganism interactions are concerned, there are still few studies conducted with M. polymorpha. Specifically, in the interaction of M. polymorpha with arbuscular mycorrhizal fungi (AMF), it has been described how AMF colonize the M. polymorpha tissues, without knowing more about the interaction. In this study, M. polymorpha is inoculated with different AMF formulations, analyzing the direct effect on M. polymorpha’s growth and the nutritional content, along with stress responses. Moreover, expression levels of defense genes in M. polymorpha were analyzed. The results obtained showed how M. polymorpha-AMF interaction is detrimental to plant under in vitro conditions. A reduction in its growth and viability of its tissues was observed, in addition to an increase only in nutritional content of those elements related to plant defenses, together with the reactive oxygen species (ROS) content. Rhizophagus fasciculatus is only present in the formulation that causes major damage to the plant, including symptoms of tissue damage, and that mostly colonizes the plant. It suggests its possible role as a plant pathogen, due to the inability of M. polymorpha to defend it against the AMF by the route of salicylic acid (SA).

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I would like to thank the Symbiosis’s reviewers and editor, thanks to who the document has improved significantly.

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Correspondence to Jorge Poveda.

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Poveda, J. Marchantia polymorpha subsp. ruderalis (Bischl. & Boissel.-Dub.)-arbuscular mycorrhizal fungi interaction: beneficial or harmful?. Symbiosis 82, 165–174 (2020). https://doi.org/10.1007/s13199-020-00708-6

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  • DOI: https://doi.org/10.1007/s13199-020-00708-6

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