Time to grow: factors that control plant growth during mild to moderate drought stress

Verslues, Paul E.

doi:10.1111/pce.12827

Cited by 34 publications

(13 citation statements)

References 14 publications

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“…Abiotic stresses such as drought, high temperatures and salinity are major causes for loss of natural vegetation, crop productivity depreciation and, therefore, reduction of capacity for CO 2 uptake. Drought stress severely inhibits photosynthesis and root growth (Iturbe-Ormaetxe et al, 1998;Verslues, 2017). Salinity stress leads to ion toxicity due to excessive amounts of Na + and Cl − that causes detrimental effects on plant growth and development (Ashraf, 1994;Ashraf and Khanum, 1997;Negrao et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere engineering: Enhancing sustainable plant ecosystem productivity

White²,

et al. 2017

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The rhizosphere is arguably the most complex microbial habitat on earth, comprising an integrated network of plant roots, soil and a diverse microbial consortium of bacteria, archaea, viruses, and microeukaryotes. Understanding, predicting and controlling the structure and function of the rhizosphere will allow us to harness plantmicrobe interactions and other rhizosphere activities as a means to increase or restore plant ecosystem productivity, improve plant responses to a wide range of environmental perturbations, and mitigate effects of climate change by designing ecosystems for longterm soil carbon storage. Here, we review critical knowledge gaps in rhizosphere 2 science, and how mechanistic understanding of rhizosphere interactions can be leveraged in rhizosphere engineering efforts with the goal of maintaining sustainable plant ecosystem services for food and bioenergy production in an ever changing global climate.

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Section: Introductionmentioning

confidence: 99%

Rhizosphere engineering: Enhancing sustainable plant ecosystem productivity

White²,

et al. 2017

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“…Understanding growth regulation in general, as well as identifying factors that detect changes in water status and limit growth during drought, has the potential to improve crop biomass, productivity, and yield stability (Claeys and Inzé, 2013). Regulation of growth under moderate drought is distinct from mechanisms determining survival of severe water deprivation where no growth occurs (Skirycz et al, 2011;Verslues, 2016).…”

Section: Introductionmentioning

confidence: 99%

Protein Phosphatase 2Cs and Microtubule-Associated Stress Protein 1 Control Microtubule Stability, Plant Growth, and Drought Response

et al. 2016

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Plant growth is coordinated with environmental factors, including water availability during times of drought. Microtubules influence cell expansion; however, the mechanisms by which environmental signals impinge upon microtubule organization and whether microtubule-related factors limit growth during drought remains unclear. We found that three () Type 2C protein phosphatases act as negative growth regulators to restrain growth during drought. Quantitative phosphoproteomics indicated that EGRs target cytoskeleton and plasma membrane-associated proteins. Of these, (), an uncharacterized protein, increased in abundance during stress treatment and could bind, bundle, and stabilize microtubules in vitro. MASP1 overexpression enhanced growth, in vivo microtubule stability, and recovery of microtubule organization during drought acclimation. These MASP1 functions in vivo were dependent on phosphorylation of a single serine. For all EGR and MASP1 mutants and transgenic lines examined, enhanced microtubule recovery and stability were associated with increased growth during drought stress. The EGR-MASP1 system selectively regulates microtubule recovery and stability to adjust plant growth and cell expansion in response to changing environmental conditions. Modification of EGR-MASP1 signaling may be useful to circumvent negative growth regulation limiting plant productivity. EGRs are likely to regulate additional proteins involved in microtubule stability and stress signaling.

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“…Because mild drought is more relevant to agriculture and significantly affects plant growth and development, studies on growth responses of plants exposed to mild drought are of increasing importance (Aguirrezabal et al , 2006; Pereyra-Irujo et al , 2008; Clauw et al , 2015). Several studies have focussed on unravelling the transcriptomic changes associated with the drought response (Harb et al , 2010; Clauw et al , 2015, 2016; Bac-Molenaar et al , 2016; Rasheed et al , 2016; Dubois et al , 2017; Verslues, 2017) and a few studies even addressed drought response on a proteome or phosphoproteome level (Singh and Jwa, 2013; Katam et al , 2016; Vu et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

Early mannitol-triggered changes in the Arabidopsis leaf (phospho)proteome

Nikonorova

Zhu

et al. 2018

Preprint

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Drought is one of the most detrimental environmental stresses to which plants are exposed. Especially mild drought is relevant to agriculture and significantly affects plant growth and development. In plant research, mannitol is often used to mimic drought stress and study the underlying responses. In growing leaf tissue of plants exposed to mannitol-induced stress, a highly-interconnected gene regulatory network is induced. However, early signaling and associated protein phosphorylation events that likely precede part of these transcriptional changes are largely unknown. Here, we performed a full proteome and phosphoproteome analysis on growing leaf tissue of Arabidopsis plants exposed to mild mannitol-induced stress and captured the fast (within the first half hour) events associated with this stress. Based on this in-depth data analysis, 167 and 172 differentially regulated proteins and phosphorylated sites were found back, respectively. Additionally, we identified H(+)-ATPASE 2 (AHA2) and CYSTEINE-RICH REPEAT SECRETORY PROTEIN 38 (CRRSP38) as novel regulators of shoot growth under osmotic stress.HighlightWe captured early changes in the Arabidopsis leaf proteome and phosphoproteome upon mild mannitol stress and identified AHA2 and CRRSP38 as novel regulators of shoot growth under osmotic stress

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Time to grow: factors that control plant growth during mild to moderate drought stress

Abstract: This article comments on: Time of day determines Arabidopsis transcriptome and growth dynamics under mild drought.

Cited by 34 publications

References 14 publications

Rhizosphere engineering: Enhancing sustainable plant ecosystem productivity

Rhizosphere engineering: Enhancing sustainable plant ecosystem productivity

Protein Phosphatase 2Cs and Microtubule-Associated Stress Protein 1 Control Microtubule Stability, Plant Growth, and Drought Response

Early mannitol-triggered changes in the Arabidopsis leaf (phospho)proteome

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