A CLE–SUNN module regulates strigolactone content and fungal colonization in arbuscular mycorrhiza

Müller, Lena; Floková, Kristýna; Schnabel, Elise; Sun, Xuepeng; Fei, Zhangjun; Frugoli, Julia; Bouwmeester, Harro J.; Harrison, Maria J.

doi:10.1038/s41477-019-0501-1

Cited by 81 publications

(122 citation statements)

References 41 publications

(61 reference statements)

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“…Indeed, the phytohormones well characterized to play diverse roles in plant development (including tassel development) are also implicated in the establishment and regulation of AM symbiosis (Gutjahr, 2014;Sawers et al, 2018;Bonfante & Genre, 2015). For example, disruption of ethylene signalling has been shown to modulate the level of (negative) host response to AMF in Nicotiana attenuata (Riedel et al, 2008); a DELLA repressor in the gibberellic acid signalling pathway is essential for AM colonization in rice (Yu et al, 2014); a feedback-loop of CLE peptide-SUNN kinase-strigolactone modulates the extent of AMF colonization in Medicago truncatula (Müller et al, 2019). Given that many of these same signals have been the targets of domestication and plant improvement, it is perhaps to be expected that trade-offs will be observed in cultivated plants (Sawers et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

Preprint

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AbstractArbuscular mycorrhizal fungi (AMF) are ubiquitous in cultivated soils, forming symbiotic relationships with the roots of major crop species. Although physiological and molecular genetic studies have demonstrated the potential of the symbiosis to enhance host plant nutrition and alleviate environmental stress, experimental difficulties have complicated estimation of the actual benefit in the field. Furthermore, host response to the symbiosis can range from positive to negative depending on the plant variety. Here, a novel mapping strategy, based on the use of AMF-resistant plant varieties, was implemented to evaluate maize response to arbuscular mycorrhiza in the field. AMF were found to make a significant contribution to plant growth and yield components, both in terms of absolute affect and as a driver of variation among plant genotypes. Characterization of the genetic architecture of host response distinguished mycorrhiza dependence and benefit and indicated genetic trade-off between mycorrhizal and non-mycorrhizal growth. This approach is applicable to other crop species, permits further mechanistic analysis and is scalable to yield trials.

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Section: Discussionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

Preprint

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“…89) Therefore, some direct and indirect interactions between ABA and SLs seem to occur, but no clear evidence has been reported so far. Other plant hormones, brassinosteroids, 90) jasmonic acid, 87) salicylic acid, ethylene, 74,91) and peptide hormones, 92) may also interact with SLs, but further studies are needed to draw a clear conclusion.…”

Section: Regulation Of Sl Biosynthesismentioning

confidence: 99%

Recent progress in the chemistry and biochemistry of strigolactones

Yoneyama

2020

J. Pestic. Sci.

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Strigolactones (SLs) are plant secondary metabolites derived from carotenoids. SLs play important roles in the regulation of plant growth and development in planta and coordinate interactions between plants and other organisms including root parasitic plants, and symbiotic and pathogenic microbes in the rhizosphere. In the 50 years since the discovery of the first SL, strigol, our knowledge about the chemistry and biochemistry of SLs has advanced explosively, especially over the last two decades. In this review, recent advances in the chemistry and biology of SLs are summarized and possible future outcomes are discussed.

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“…A role for tri-arabinosylation in activation of MtCLE53 was supported by the fact that overexpression of a modified version of MtCLE53 that may be unable to be tri-arabinosylated did not influence AM (Karlo et al, 2020). In contrast to the important role for MtCLE53, overexpression of the nodulation induced CLE, MtCLE13, did not suppress AM colonisation (Müller et al, 2019). Intriguingly, AM fungi themselves can also produce CLE peptides that appear to promote colonisation (Le Marquer et al, 2018).…”

Section: Introductionmentioning

confidence: 82%

“…Studies in legumes indicate at least some of the genetic elements in autoregulation of nodulation (AON) overlap with elements of autoregulation of mycorrhizae (AOM) but have also highlighted some important differences (e.g. Catford, 2003;Foo et al, 2016;Müller et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to this conservation, nodulation and mycorrhizae induce the expression of a specific sub-set of CLE peptides (de Bang et al, 2017a;Handa et al, 2015;Karlo et al, 2020;Müller et al, 2019). Indeed, recent studies in M. truncatula have established that specific CLE peptides suppress the formation of AM (Karlo et al, 2020;Müller et al, 2019). Overexpression of MtCLE53 and MtCLE33 led to significantly reduced mycorrhizal colonisation compared with the control construct, and this suppression was dependant on the CLV1-like gene SUNN and RDN1.…”

Section: Introductionmentioning

confidence: 99%

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The role of CLV signalling in the negative regulation of mycorrhizal colonisation and nitrogen response of tomato

Wang

Velandia

Kwon

et al. 2020

Preprint

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AbstractPlants form mutualistic nutrient acquiring symbioses with microbes, including arbuscular mycorrhizal fungi. The formation of these symbioses is costly and plants employ a negative feedback loop termed autoregulation of mycorrhizae (AOM) to limit arbuscular mycorrhizae (AM) formation. We provide evidence for the role of one leucine-rich-repeat receptor like kinase (FAB), a hydroxyproline O-arabinosyltransferase enzyme (FIN), one CLE peptide, SlCLE11 and additional evidence for the one receptor like protein (SlCLV2) in the negative regulation of AM formation in tomato. Reciprocal grafting experiments suggest that the FAB gene acts locally in the root, while the SlCLV2 gene may act in both the root and the shoot. External nutrients including phosphate and nitrate can also strongly suppress AM formation. We found that FAB and FIN are required for nitrate suppression of AM but are not required for the powerful suppression of AM colonisation by phosphate. This parallels some of the roles of legume homologs in the autoregulation of the more recently evolved symbioses with nitrogen-fixing bacteria leading to nodulation. This deep homology in the symbiotic role of these genes suggests that in addition to the early signalling events that lead to the establishment of AM and nodulation, the autoregulation pathway might also be considered part of the common symbiotic toolkit that enabled plants to form beneficial symbioses.HighlightWe describe the role of CLV signalling elements in the negative regulation of arbuscular mycorrhizal symbioses of tomato, including influencing nitrate but not phosphate suppression of mycorrhizal colonisation.

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A CLE–SUNN module regulates strigolactone content and fungal colonization in arbuscular mycorrhiza

Cited by 81 publications

References 41 publications

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Recent progress in the chemistry and biochemistry of strigolactones

The role of CLV signalling in the negative regulation of mycorrhizal colonisation and nitrogen response of tomato

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