Maize<i>AUXIN-BINDING PROTEIN 1</i>and<i>AUXIN-BINDING PROTEIN 4</i>impact on leaf growth, elongation, and seedling responsiveness to auxin and light

Jurišić-KneževDejana,; ČudejkováMária,; ZalabákDavid,; HlobilováMarta,; RolčíkJakub,; Pěnčík, Aleš; Bergougnoux, Véronique; FellnerMartin,

doi:10.1139/b2012-071

Cited by 7 publications

(6 citation statements)

References 87 publications

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“…The heatmap for gene expression comparison was generated as described in the legends of Figure 1. the phenotypes observed in maize Zmabp1 and Zmabp4 mutants, which were identified in highly Mu-active lines (Im et al, 2000;Borucka and Fellner, 2012;Jurisic-Knezev et al, 2012).…”

Section: Tir/afb Proteinsmentioning

confidence: 99%

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

et al. 2019

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The phytohormone auxin has been shown to be of pivotal importance in growth and development of land plants. The underlying molecular players involved in auxin biosynthesis, transport, and signaling are quite well understood in Arabidopsis. However, functional characterizations of auxin-related genes in economically important crops, specifically maize and rice, are still limited. In this article, we comprehensively review recent functional studies on auxin-related genes in both maize and rice, compared with what is known in Arabidopsis, and highlight conservation and diversification of their functions. Our analysis is illustrated by phylogenetic analysis and publicly available gene expression data for each gene family, which will aid in the identification of auxin-related genes for future research. Current challenges and future directions for auxin research in maize and rice are discussed. Developments in gene editing techniques provide powerful tools for overcoming the issue of redundancy in these gene families and will undoubtedly advance auxin research in crops.

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Section: Tir/afb Proteinsmentioning

confidence: 99%

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

et al. 2019

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“…The sensor Target of Rapamycin (TOR) serves as the main regulatory target. As an upstream regulator of TOR, sugar participates in plant metabolism, transcription and translation to regulate cell proliferation, growth and development [34][35][36]. Previous studies reported that TOR can transduce photosynthesisderived glucose energy signals, thereby controlling the proliferation of stem/progenitor cells in the root meristem [37].…”

Section: Discussionmentioning

confidence: 99%

The Proteomics and Metabolomics Studies of GZU001 on Promoting the Merisis of Maize (Zea mays L.) Roots

Zheng

Chen

Wei

et al. 2022

Preprint

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Background Plant growth regulators are chemicals that regulate plant growth and development, which can regulate hormonal balance and affect plant growth, thereby increasing crop yield and/or improving crop quality. We discovered a novel compound (GZU001), a potential plant growth regulator, that significantly promoted root elongation in maize. However, an underlying potential mechanism is still under study. Results To explore the response pathway and regulation mechanism of GZU001 in promoting maize root elongation, the current study used a combination of metabolomics and proteomics study. From the appearance, we can see that both roots and plants of maize treated with GZU001 are significantly improved. In the metabolic process of maize roots, glucose not only acts as a nutrient molecule, but also plays a dual role as a signal molecule, which plays an important role in promoting plant growth and development. In total, 101 differentially abundant proteins (DAPs) and 79 differentially expressed metabolites were identified. The current study identified altered proteins and metabolites associated with physiological and biochemical processes. These processes are mainly involved in carbohydrate metabolism, amino acid metabolism, energy metabolism and secondary metabolism, indicating that the enhancement of primary metabolism after GZU001 treatment is beneficial to the growth and development of maize, and plays an important role in maintaining metabolism and growth and development. Conclusions This study recorded the changes of related proteins and metabolites in maize roots after GZU001 treatment, and provided evidence for the action mode and mechanism of this compound in plants.

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“…Seeds of single mutants abp1 (B2 allele) and abp4 (B2/K1 allele), double mutants abp1abp4 (B2/K1 allele), and a near isogenic line (inbred line A619, here called WT) were a gift from Alan M. Jones (The University of North Carolina, USA). All mutants were tested for the lack of ABP1 and (or) ABP4 gene expression and they showed stable phenotypes (Jurišić-Knežev et al 2012). For experiments, seeds were first washed with 70% ethanol for 3 min, rinsed with distilled water, and then soaked in Savo original solution (BOCHEMIE, Czech Republic) (ϳ5% sodium hypochlorite) supplemented with a drop of the detergent Tween 20 (Calbiochem, USA), shaken on a stirrer for 45 min and then extensively rinsed five times with sterile distilled water.…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

“…We recently showed that abp mutants are significantly less sensitive than WT seedlings to the inhibitory effect of exogenous auxin (Jurišić-Knežev et al 2012). The expression of ZCAX3 in etiolated coleoptile and mesocotyl was investigated as a function of exogenous auxin (50 mol·L −1 NAA).…”

Section: Auxin-dependent Expression Of Zcax2 and Zcax3 In Abp Mutantsmentioning

confidence: 99%

“…Recently, we showed that ABP1 and ABP4 participate in the growth of maize seedlings, mediate seedling responses to auxin, interact with light signaling pathway(s), and a functional interaction between ABP1 and ABP4 was proposed (Jurišić-Knežev et al 2012;Bořucká and Fellner 2012). In this study, using maize loss-of-function mutants in ABP1 and ABP4 genes, we investigated the role of these ABPs, in Ca 2+ -dependent growth, and in the Ca 2+ /auxin-regulated expression of two identified maize CAXs, designated as ZCAX3 and ZCAX2.…”

Section: Introductionmentioning

confidence: 99%

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AUXIN BINDING PROTEIN 4 is involved in the Ca²⁺/auxin-regulated expression ofZCAX3gene in maize (Zea mays)

Jurišić-KneževDejana

Bergougnoux

Milde

et al. 2014

Botany

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As a second messenger, calcium is involved in auxin signaling, and previous studies demonstrated that Arabidopsis CAX1 (Ca 2+ /H + exchanger) is involved in the auxin transduction pathway. This study was performed to investigate the possible role of auxin-binding proteins ABP1 and ABP4 in Ca 2+ /auxin-regulated growth in maize (Zea mays L.). We identified and cloned two AtCAX1 homologs in maize, ZCAX2 and ZCAX3. Using maize loss-of-function abp1 and abp4 mutants, the role of ABPs in Ca 2+ -dependent growth and in the Ca 2+ /auxin-regulated expression of the CAX genes was investigated in etiolated maize seedlings. Exogenous Ca 2+ enhanced mesocotyl but not coleoptile growth in WT, abp1, abp4, and abp1/abp4 mutants, but the maximum stimulation was in abp4. As well, in the abp4 mutant, maximum accumulation of Ca 2+ was observed when seedlings were exposed to exogenous Ca 2+ . In the mesocotyl of abp4 and double mutants, the expression of ZCAX3 was significantly reduced in the absence of exogenous Ca 2+ , whereas exogenous Ca 2+ significantly up-regulated its expression in both mutants. This effect of Ca 2+ was not observed in the coleoptile. In the absence of NAA, knockout of ABP4 led to significant drop of ZCAX3 expression in the mesocotyl, and exogenous auxin significantly inhibited expression of the ZCAX3 in WT, but not in abp mutants. This effect of auxin was not observed in the coleoptile. Our results indicate that in the absence of NAA, functional ABP4 is required for ZCAX3 expression and that ABP4 mediates the inhibitory effect of NAA on ZCAX3 expression. We provided evidence for a cross talk between ABP4, exogenous auxin, Ca 2+ , and ZCAX3 during growth of etiolated maize mesocotyl.Résumé : En tant que messager secondaire, le calcium joue un rôle dans la voie de signalisation de l'auxine. Des études ont démontré que CAX1 (échangeur Ca 2+ /H + ) d'Arabidopsis est impliqué dans cette voie de signalisation. Cette étude a été menée de façon à déterminer le rôle des protéines liant l'auxine, ABP1 et ABP4, dans la croissance du maïs (Zea mays L.) régulée par Ca 2+ /auxine. Nous avons identifié et cloné chez le maïs deux homologues de AtCAX1, ZCAX2 et ZCAX3. En utilisant les mutants de maïs perte-de-fonction abp1 et abp4, nous avons étudié le rôle des ABPs d'une part dans la croissance dépendante du Ca 2+ et d'autre part dans l'expression des gènes CAX régulée à la fois par le Ca 2+ et l'auxine. Le Ca 2+ exogène stimule la croissance du mésocotyle mais pas du coléoptile chez le WT, les mutants abp1, abp4 et abp1/abp4, même si l'effet optimum est observé pour le mutant abp4. De la même façon, chez le mutant abp4, l'accumulation maximale de Ca 2+ est observée lorsque les plantules sont exposées au Ca 2+ exogène. Dans le mésocotyle de abp4 et du double mutant, l'expression de ZCAX3 est significativement réduite en l'absence de Ca 2+ exogène ; à l'opposé, l'application de Ca 2+ induit significativement l'expression de ZCAX3 chez ces deux mutants. Cet effet du Ca 2+ n'est pas observé dans le coléoptile. En l'absence de ...

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MaizeAUXIN-BINDING PROTEIN 1andAUXIN-BINDING PROTEIN 4impact on leaf growth, elongation, and seedling responsiveness to auxin and light

Cited by 7 publications

References 87 publications

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

The Proteomics and Metabolomics Studies of GZU001 on Promoting the Merisis of Maize (Zea mays L.) Roots

AUXIN BINDING PROTEIN 4 is involved in the Ca²⁺/auxin-regulated expression ofZCAX3gene in maize (Zea mays)

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MaizeAUXIN-BINDING PROTEIN 1andAUXIN-BINDING PROTEIN 4impact on leaf growth, elongation, and seedling responsiveness to auxin and light

Cited by 7 publications

References 87 publications

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

Auxin EvoDevo: Conservation and Diversification of Genes Regulating Auxin Biosynthesis, Transport, and Signaling

The Proteomics and Metabolomics Studies of GZU001 on Promoting the Merisis of Maize (Zea mays L.) Roots

AUXIN BINDING PROTEIN 4 is involved in the Ca2+/auxin-regulated expression ofZCAX3gene in maize (Zea mays)

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AUXIN BINDING PROTEIN 4 is involved in the Ca²⁺/auxin-regulated expression ofZCAX3gene in maize (Zea mays)