Flowers and mycorrhizal roots – closer than we think?

Nouri, Eva; Reinhardt, Didier

doi:10.1016/j.tplants.2015.03.012

Cited by 11 publications

(6 citation statements)

References 78 publications

(95 reference statements)

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“…Also, the possible role of TSB in actin filament dynamics cannot be ruled out, since many plant MAPs, including the TSB homolog SB401 ( Huang et al 2007 ), bind both MTs and actin filaments ( Wang et al 2007 , Deeks et al 2010 , Li et al 2011 , Zhu et al 2013 , Qin et al 2014 ). This study also provides an insight into the existence of specific biological machinery commonly shared by arbuscule-containing cells and pollen tube cells that, as previously suggested by other authors, undergo strong membrane polarization ( Nguema-Ona et al 2012 , Nouri and Reinhardt 2015 , Ivanov and Harrison 2019 ).…”

Section: Discussionsupporting

confidence: 77%

A Novel Putative Microtubule-Associated Protein Is Involved in Arbuscule Development during Arbuscular Mycorrhiza Formation

Garo

Huertas

Tamayo-Navarrete

et al. 2021

Plant and Cell Physiology

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The formation of arbuscular mycorrhizal (AM) symbiosis requires plant root host cells to undergo major structural and functional reprogramming to house the highly branched AM fungal structure for the reciprocal exchange of nutrients. These morphological modifications are associated with cytoskeleton remodelling. However, molecular bases and the role of microtubules (MTs) and actin filament dynamics during AM formation are largely unknown. In this study, the tomato tsb (tomato similar to SB401) gene, belonging to a Solanaceae group of genes encoding MT-associated proteins (MAPs) for pollen development, was found to be highly expressed in root cells containing arbuscules. At earlier stages of mycorrhizal development, tsb overexpression enhanced the formation of highly developed and transcriptionally active arbuscules, while tsb silencing hampers the formation of mature arbuscules and represses arbuscule functionality. However, at later stages of mycorrhizal colonization, tsb overexpressing (OE) roots accumulate fully developed transcriptionally inactive arbuscules, suggesting that the collapse and turnover of arbuscules might be impaired by TSB accumulation. Imaging analysis of the MT cytoskeleton in cortex root cells OE tsb revealed that TSB is involved in MT bundling. Taken together, our results provide unprecedented insights into the role of novel MAP in MT rearrangements throughout the different stages of the arbuscule life cycle.

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Section: Discussionsupporting

confidence: 77%

A Novel Putative Microtubule-Associated Protein Is Involved in Arbuscule Development during Arbuscular Mycorrhiza Formation

Garo

Huertas

Tamayo-Navarrete

et al. 2021

Plant and Cell Physiology

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“…Parallels-or parallelisms-with AM symbiosis do not end with signaling (e.g., Takeda et al, 2013 ), and deep homologies go beyond that symbiosis: another provocative recent paper's title asks the question, "Flowers and mycorrhizal roots-closer than we think?" ( Nouri and Reinhardt, 2015 ) and extends previous observations of molecular similarities between growth of pollen tubes and nodulation infection threads ( Rodríguez-Llorente et al, 2004 ) to mycorrhization. Other aspects of nodulation are shared with root knots formed by nematodes ( Koltai et al, 2001 ), and Soyano and Hayashi (2014) hypothesized that the evolution of nodulation involved the recruitment and integration of transcriptional modules from lateral root development and nitrate metabolism, in addition to mycorrhization, while Couzigou et al (2012) identifi ed genes involved in leaf and fl ower development that they hypothesized were recruited to repress root identity.…”

supporting

confidence: 87%

Chasing unicorns: Nodulation origins and the paradox of novelty

Doyle

2016

American J of Botany

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A radio series on the history of music called "Composers Datebook" ends each vignette by reminding listeners that "All music was once new." Well, in evolutionary terms, every tissue and every organ was once an innovation, assembled de novo or from bits and pieces of pre-existing parts. How novelty arises is a fundamental question in the fi eld of developmental evolution. In plants, the legume nodule is a fascinating system for studying the process by which a novel structure evolves and is modified in diverse lineages.Nodulation -Th e legume nodule is an organ, typically found on roots, that houses symbiotic Gram-negative bacteria ("rhizobia") that fi x atmospheric nitrogen in exchange for carbon from plant photosynthesis. Rhizobia comprise diverse genera of alpha-and beta-Proteobacteria; just how diverse is becoming more clear as new symbionts-such as members of the genus Burkholderia , which includes both symbionts and pathogens ( Lemaire et al., 2016 )-continue to be identifi ed from legume nodules.Nodules are a hallmark of the legume family (Leguminosae or Fabaceae), the third largest family of fl owering plants, with over 19,000 species. However, nodules are not confi ned to legumes. Rhizobial nodules also occur in the genus Parasponia (Cannabaceae), and members of eight "actinorhizal" families (Rosaceae, Betulaceae, Casuarinaceae, Myricaceae, Rhamnaceae, Elaeagnaceae, Datiscaceae, Coriariaceae) form nodules with Gram-positive bacteria of the genus Frankia . It has been known since almost the earliest days of large-scale angiosperm molecular phylogenetic studies that the families containing nodulating species are all embedded within a single large "nitrogen-fi xing clade" of rosids ( Fig. 1 ); their scattered distribution within the clade, as well as the anatomical diversity of their nodules, suggested that nodulation originated multiple times within the clade but that its common ancestor evolved a propensity for nodulation ( Soltis et al., 1995 ). Understanding this

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“…Likewise, a wide relationship between the number of f lowers and root elongation stimulated by the symbiotic association with AMF has been demonstrated, said the association is catalyzed by the calcium and calmodulindependent kinase enzyme (CCaMK), therefore, an increase in the number of f lowers, it is synonymous with the increase in kinase production, guaranteeing an extraordinary symbiotic association between roots and AMF (Nouri and Reinhardt, 2015).…”

Section: Pre-harvest Evaluationmentioning

confidence: 99%

Evaluation of the ef fect of native arbuscular mycorrhizal fungi an vermicompost leachate on the yield and quality of f ield-grown peanuts

et al. 2022

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The improvement of the symbiosis generated by arbuscular mycorrhizal fungi (AMF) against pathogenic microorganisms has been described, however, the ef fect of AMF in peanut crops is of interest due to the value of the productive chain that has not been fully attended. Therefore, this research work evaluated six treatments: (T1) Control plants without AMF, (T2) Plants with vermicompost leachate, (T3) Plants inoculated with commercial mycorrhizae, (T4) Plants inoculated with native mycorrhizae, (T5) Plants inoculated with commercial mycorrhizae + leachate and (T6) Plants inoculated with commercial mycorrhizae + native mycorrhizae; in this sense, mycorrhizal fungi were isolated, identifying Rhizoglomus clarum, Acaulospora alpina and Acaulospora af f. bireticulata, and inoculated in peanut plants in an area of 144 m2 in the open, so that, to corroborate the incidence of the treatments evaluated, agronomic variables such as height, width of biomass, foliar damage by Cercospora personata, number of f lowers, were evaluated during the pre-harvest every 15 days and the post-harvest variables were; leaf area index, root length, fruit and lipid yield, as well as the prof ile of fatty acids present in the fruit. Finally, peanut quality was evaluated according to CODEX STAN 200-1995, showing that the best treatment was leaching + commercial mycorrhizae, reporting yields of 65.05% of fruits and 58% of total lipids, mostly monounsaturated fatty acids (52 % oleic acid) followed by polyunsaturated (21% linoleic acid), f inally according to CODEX STAN 200-199 the peanuts obtained correspond to the basic quality with dimensions of 4 to 4.5 cm wide and long respectively, these peanuts cannot be exported but they can be marketed in the country for agro-industrial transformation, allowing improved agricultural practices by reducing the use of agrochemicals.

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Flowers and mycorrhizal roots – closer than we think?

Cited by 11 publications

References 78 publications

A Novel Putative Microtubule-Associated Protein Is Involved in Arbuscule Development during Arbuscular Mycorrhiza Formation

A Novel Putative Microtubule-Associated Protein Is Involved in Arbuscule Development during Arbuscular Mycorrhiza Formation

Chasing unicorns: Nodulation origins and the paradox of novelty

Evaluation of the ef fect of native arbuscular mycorrhizal fungi an vermicompost leachate on the yield and quality of f ield-grown peanuts

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