Distinguishing friends from foes: Can smRNAs modulate plant interactions with beneficial and pathogenic organisms?

Pradhan, Maitree; Requena, Natalia

doi:10.1016/j.pbi.2022.102259

Cited by 1 publication

(2 citation statements)

References 84 publications

(50 reference statements)

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“…To have a full view of the sRNA‐mediated plant gene regulation network occurring in the AM symbiosis, integrated analyses of the different populations of RNA, covering the sRNAs and their targets and including the so far little characterized tiny and circular RNAs, should be performed (Zeng et al ., 2023). The role of specific members from the DCL and/or AGO family in the AM symbiosis also deserves further investigation (Huang et al ., 2019; Pradhan & Requena, 2022; Pradhan et al ., 2023).…”

Section: Plant Srnas Shape Plant‐biotic Interactions Including the Am...mentioning

confidence: 99%

“…Accordingly, many studies have reported extensive and conserved transcriptional reprogramming across different plant species in response to AM fungi, including genes present only in the genomes of AM‐competent species (Delaux et al ., 2014; Bravo et al ., 2016). Besides transcription factors and cis‐ regulatory elements (Pimprikar & Gutjahr, 2018), small RNAs (sRNAs) have also been deemed important regulators embedded in the genetic networks orchestrating AM development (Lauressergues et al ., 2012; Bazin et al ., 2013; Etemadi et al ., 2014; Couzigou et al ., 2017; Müller & Harrison, 2019; Pradhan & Requena, 2022). Likewise, AM fungi undergo profound reprogramming that might include sRNAs since they possess all the essential components of RNA interference (RNAi) machinery regulating the production of sRNA from different genetic sources (Silvestri et al ., 2019, 2020; Dallaire et al ., 2021; Manley et al ., 2023).…”

Section: Introductionmentioning

confidence: 99%

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A journey into the world of small RNAs in the arbuscular mycorrhizal symbiosis

Ledford,

Silvestri,

Fiorilli

et al. 2023

New Phytologist

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SummaryArbuscular mycorrhizal (AM) symbiosis is a mutualistic interaction between fungi and most land plants that is underpinned by a bidirectional exchange of nutrients. AM development is a tightly regulated process that encompasses molecular communication for reciprocal recognition, fungal accommodation in root tissues and activation of symbiotic function. As such, a complex network of transcriptional regulation and molecular signaling underlies the cellular and metabolic reprogramming of host cells upon AM fungal colonization. In addition to transcription factors, small RNAs (sRNAs) are emerging as important regulators embedded in the gene network that orchestrates AM development. In addition to controlling cell‐autonomous processes, plant sRNAs also function as mobile signals capable of moving to different organs and even to different plants or organisms that interact with plants. AM fungi also produce sRNAs; however, their function in the AM symbiosis remains largely unknown. Here, we discuss the contribution of host sRNAs in the development of AM symbiosis by considering their role in the transcriptional reprogramming of AM fungal colonized cells. We also describe the characteristics of AM fungal‐derived sRNAs and emerging evidence for the bidirectional transfer of functional sRNAs between the two partners to mutually modulate gene expression and control the symbiosis.

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