Sphingolipids in plant immunity

Zeng, Hong; Yao, Nan

doi:10.1186/s42483-022-00125-1

Cited by 13 publications

(8 citation statements)

References 167 publications

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“…Moreover, the increase in glycerophospholipids reduces microbes membrane permeability and increases resistance against antimicrobial compounds allowing the establishment of coexistence between different microbial species rather than their eradication ( Molina-Santiago et al., 2021 ). Furthermore, they are released as exudates of plant roots and their role in directly influencing growth of plant interacting microorganisms has been only recently investigated ( Glenz et al., 2022 ; Zeng and Yao, 2022 ). In addition, the increased level of hydrophobic components of organic matter can enhance soil aggregate stability and C stabilization ( Goh, 2004 ).…”

Section: Discussionmentioning

confidence: 99%

Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

et al. 2023

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Perennial grains provide various ecosystem services compared to the annual counterparts thanks to their extensive root system and permanent soil cover. However, little is known about the evolution and diversification of perennial grains rhizosphere and its ecological functions over time. In this study, a suite of -OMICSs - metagenomics, enzymomics, metabolomics and lipidomics - was used to compare the rhizosphere environment of four perennial wheat lines at the first and fourth year of growth in comparison with an annual durum wheat cultivar and the parental species Thinopyrum intermedium. We hypothesized that wheat perenniality has a greater role in shaping the rhizobiome composition, biomass, diversity, and activity than plant genotypes because perenniality affects the quality and quantity of C input – mainly root exudates – hence modulating the plant-microbes crosstalk. In support of this hypothesis, the continuous supply of sugars in the rhizosphere along the years created a favorable environment for microbial growth which is reflected in a higher microbial biomass and enzymatic activity. Moreover, modification in the rhizosphere metabolome and lipidome over the years led to changes in the microbial community composition favoring the coexistence of more diverse microbial taxa, increasing plant tolerance to biotic and abiotic stresses. Despite the dominance of the perenniality effect, our data underlined that the OK72 line rhizobiome distinguished from the others by the increase in abundance of Pseudomonas spp., most of which are known as potential beneficial microorganisms, identifying this line as a suitable candidate for the study and selection of new perennial wheat lines.

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Section: Discussionmentioning

confidence: 99%

Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

et al. 2023

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“…However, application of the BR-biosynthesis inhibitor brassinazole increased LCB content and the related gene expression, suggesting that BRs might negatively regulate the contents of long-chain SPLs during olive fruit development, alleviating their negative effects [ 80 , 150 ]. In plant immunity, a coordination of BRs with SPLs (LCBs) has been recently hypothesized, with LCB accumulation affecting BR signaling [ 151 ]. In accordance, hydroxyl groups of SPL chains affect the abundance of the transmembrane co-receptor BRASSINOSTEROID INSENSITIVE 1 -ASSOCIATED RECEPTOR KINASE 1 (BAK1), involved in controlling the early events of the BR-signaling pathway [ 152 ].…”

Section: Role Of Sphingolipids In Rooting With a Putative No–br Inter...mentioning

confidence: 99%

“…Moreover, evidence for the use of SPLs in adventitious rooting of cuttings is almost completely absent, even though in in vitro cultured Arabidopsis explants they were shown to act as signals for mediating callus competence and root regeneration [ 141 ]. Regarding SPLs, promising results come from research on plant immunity, a process in which the use of commercial SPLs and SPL metabolism inhibitors has contributed to reveal their multiple positive functions [ 151 ].…”

Section: Perspectives For Adventitious Rooting Of Cuttings and Agricu...mentioning

confidence: 99%

New Paradigms in Brassinosteroids, Strigolactones, Sphingolipids, and Nitric Oxide Interaction in the Control of Lateral and Adventitious Root Formation

Altamura

Piacentini

Rovere

et al. 2023

Plants

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The root system is formed by the primary root (PR), which forms lateral roots (LRs) and, in some cases, adventitious roots (ARs), which in turn may produce their own LRs. The formation of ARs is also essential for vegetative propagation in planta and in vitro and for breeding programs. Root formation and branching is coordinated by a complex developmental network, which maximizes the plant’s ability to cope with abiotic stress. Rooting is also a response caused in a cutting by wounding and disconnection from the donor plant. Brassinosteroids (BRs) are steroid molecules perceived at the cell surface. They act as plant-growth-regulators (PGRs) and modulate plant development to provide stress tolerance. BRs and auxins control the formation of LRs and ARs. The auxin/BR interaction involves other PGRs and compounds, such as nitric oxide (NO), strigolactones (SLs), and sphingolipids (SPLs). The roles of these interactions in root formation and plasticity are still to be discovered. SLs are carotenoid derived PGRs. SLs enhance/reduce LR/AR formation depending on species and culture conditions. These PGRs possibly crosstalk with BRs. SPLs form domains with sterols within cellular membranes. Both SLs and SPLs participate in plant development and stress responses. SPLs are determinant for auxin cell-trafficking, which is essential for the formation of LRs/ARs in planta and in in vitro systems. Although little is known about the transport, trafficking, and signaling of SPLs, they seem to interact with BRs and SLs in regulating root-system growth. Here, we review the literature on BRs as modulators of LR and AR formation, as well as their crosstalk with SLs and SPLs through NO signaling. Knowledge on the control of rooting by these non-classical PGRs can help in improving crop productivity and enhancing AR-response from cuttings.

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“…LCBs) and their derivatives, including ceramides (Cers), hydroxyceramides (hCers), glucosylceramides (GlcCers), and glycosylinositolphosphoceramides (GIPCs) ( Quinville et al., 2021 ). All of these classes of sphingolipids, and particularly LCBs, have been reported to modulate plant-microbe interactions ( Zeng and Yao, 2022 ). Synthesis of all other sphingolipids from LCBs begins through the action of ceramide synthases (CSs), which shape the profile of complex sphingolipids and also regulate LCB levels in the plants.…”

Section: Sphingolipidsmentioning

confidence: 99%