Auxin Signaling and Response Mechanisms and Roles in Plant Growth and Development

Kalluri, Udaya C.; Basu, Manojit; Jawdy, Sara; Tuskan, Gerald A.

doi:10.1201/b10819-10

Cited by 3 publications

(5 citation statements)

References 82 publications

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“…Finally, auxin transport mediated through auxin influx proteins such as auxin resistant 1 (AUX1) and like auxin (LAX), and efflux proteins such as pin‐formed (PIN) and ATP binding cassette B/multidrug resistance/P‐glycoprotein (ABCB/MDR/PGP) can modulate root development (Teale, Paponov & Palme ; Kalluri et al . ) (Fig. ).…”

Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 93%

“…Historic experiments by Slankis (1973) have demonstrated a role for fungal auxin in forming mycorrhizal associations in Pinus roots. The role of auxin in regulating a wide range of physiological and developmental processes in plants, such as seedling growth, apical dominance, vascular patterning, tropic responses, embryogenesis, and root growth and development, is well known and documented (Zhao 2010;Kalluri et al 2011). At the cellular level, auxins are known to regulate many aspects of cell division, differentiation and elongation through activation of the cell cycle genes and acidification of cell wall (Overvoorde, Fukaki & Beeckman 2010).…”

Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 99%

“…Many of these components in auxin signalling have been identified to be involved in the regulation of root development (Casimiro et al 2003). Finally, auxin transport mediated through auxin influx proteins such as auxin resistant 1 (AUX1) and like auxin (LAX), and efflux proteins such as pin-formed (PIN) and ATP binding cassette B/multidrug resistance/P-glycoprotein (ABCB/MDR/PGP) can modulate root development (Teale, Paponov & Palme 2006;Kalluri et al 2011) (Fig. 1).…”

Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 99%

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Involvement of auxin pathways in modulating root architecture during beneficial plant–microorganism interactions

Sukumar

Legué

Vayssières

et al. 2012

Plant Cell & Environment

198

113

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A wide variety of microorganisms known to produce auxin and auxin precursors form beneficial relationships with plants and alter host root development. Moreover, other signals produced by microorganisms affect auxin pathways in host plants. However, the precise role of auxin and auxinsignalling pathways in modulating plant-microbe interactions is unknown. Dissecting out the auxin synthesis, transport and signalling pathways resulting in the characteristic molecular, physiological and developmental response in plants will further illuminate upon how these intriguing interspecies interactions of environmental, ecological and economic significance occur. The present review seeks to survey and summarize the scattered evidence in support of known host root modifications brought about by beneficial microorganisms and implicate the role of auxin synthesis, transport and signal transduction in modulating beneficial effects in plants. Finally, through a synthesis of the current body of work, we present outstanding challenges and potential future research directions on studies related to auxin signalling in plant-microbe interactions.

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Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 93%

Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 99%

Section: Role Of Auxin In Plant Root Developmentmentioning

confidence: 99%

See 1 more Smart Citation

Involvement of auxin pathways in modulating root architecture during beneficial plant–microorganism interactions

Sukumar

Legué

Vayssières

et al. 2012

Plant Cell & Environment

198

113

View full text Add to dashboard Cite

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“…Directional auxin transport is mediated by auxin influx proteins such as AUX1 (AUXIN RESISTANT 1) and LAX (LIKE AUXIN) and auxin efflux proteins including those belonging to PIN FORMED (PIN) and ATP BINDING CASSETTE B/MULTIDRUG RESISTANCE/P-GLYCOPROTEIN (ABCB/MDR/PGP) families (Teale et al 2006;Kalluri et al 2011;Enders and Strader, 2015). PIN2, PIN3, and PIN7 transport proteins have been implicated in lateral root formation in Arabidopsis thaliana.…”

Section: Introductionmentioning

confidence: 99%

Host auxin machinery is important in mediating root architecture changes induced byPseudomonas fluorescensGM30 andSerendipita indica

Matthiadis

Sukumar

DeLeon

et al. 2020

Preprint

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Auxin is a key phytohormone that is integral to plant developmental processes including those underlying root initiation, elongation, and branching. Beneficial microbes have been shown to have an impact on root development, potentially mediated through auxin. In this study, we explore the role of host auxin signaling and transport components in mediating the root growth promoting effects of beneficial microbes. Towards this end, we undertook co-culture studies of Arabidopsis thaliana plants with microbes previously reported to promote lateral root proliferation and produce auxin. Two types of beneficial microbes were included in the present study; a plant growth promoting bacterial species of interest, Pseudomonas fluorescens GM30, and a well-studied plant growth promoting fungal species, Serendipita indica (Piriformospora indica). Following co-culture, lateral root production was found partially restored in auxin transport inhibitor-treated plants, suggesting involvement of microbe and/or microbially-produced auxin in altering plant auxin levels. In order to clarify the role of host auxin signaling and transport pathways in mediating interactions with bacterial and fungal species, we employed a suite of auxin genetic mutants as hosts in co-culture screens. Our result show that the transport proteins PIN2, PIN3, and PIN7 and the signaling protein ARF19, are required for mediating root architecture effects by the bacterial and/or fungal species. Mutants corresponding to these proteins did not significantly respond to co-culture treatment and did not show increases in lateral root production and lateral root density. These results implicate the importance of host auxin signaling in both bacterial and fungal induced changes in root architecture and serve as a driver for future research on understanding the role of auxin-dependent and auxin-independent pathways in mediating plant-microbe interactions in economically important crop species.

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“…The phytohormone auxin plays an important role in the regulation of many physiological processes of plant growth and development (Kalluri et al, 2011;Petrášek et al, 2011). In fruit development, great progress has been made toward understanding the regulatory mechanism of auxin on climacteric fruit, although the majority of research has focused on tomato (Solanum lycopersicum) (Molesini et al, 2009;Wang et al, 2005;Goetz et al, 2007;Mounet et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Immunohistochemical Localization of Endogenous IAA in Peach (Prunus persica L.) Fruit during Development

Zhang¹,

Yang²,

Shi³

et al. 2015

HST

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Peach (Prunus persica L.) is a model species for stone fruit studies within the Rosaceae family. Auxin plays an important role in the development of peach fruit. To reveal the distribution of auxin in the tissues of peach fruit, immunohistochemical localization of IAA was carried out in the seed, mesocarp, and endocarp in developing peach fruit using an anti-indole-3-acetic acid (anti-IAA) monoclonal antibody. A strong IAA signal was observed throughout the outer and inner integument during peach fruit development, and the distribution was zonal. The IAA signal was mainly focused in mucilage layers in the outer integument. The outer integument may function to produce or store IAA in the seed; a strong IAA signal was detected in the cells around the vascular tissue, whereas a weak IAA signal was located in the vascular tissues. In the mesocarp, the cells around the vascular bundle tissue gave rise to an IAA signal that increased in the late phase of fruit growth, which coincided with a significant increase in fruit growth. The distribution of IAA, however, was changed when fruit was treated with auxin transport inhibitors NPA (1-N-naphthylphthalamic acid) or TIBA (2, 3, 5-triiodobenzoic acid); in mesocarp tissues, an IAA signal was detected mainly in vessels of the treated fruit. During the critical period of endocarp lignification, the vessel lignification process was negatively correlated with IAA signal. The present results confirmed that the distribution of IAA was different in various tissues of peach fruit according to the developmental stage. This research provides cytological data for further study of the regulatory mechanism of auxin in peach fruit.Additional key words: Endocarp, Mesocarp, NPA, Outer and inner integument, TIBA

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Auxin Signaling and Response Mechanisms and Roles in Plant Growth and Development

Cited by 3 publications

References 82 publications

Involvement of auxin pathways in modulating root architecture during beneficial plant–microorganism interactions

Involvement of auxin pathways in modulating root architecture during beneficial plant–microorganism interactions

Host auxin machinery is important in mediating root architecture changes induced byPseudomonas fluorescensGM30 andSerendipita indica

Immunohistochemical Localization of Endogenous IAA in Peach (Prunus persica L.) Fruit during Development

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