A plant’s diet, surviving in a variable nutrient environment

Science, Journal Year: 2020, Volume and Issue: 368(6486)

Published: April 2, 2020

As primary producers, plants rely on a large aboveground surface area to collect carbon dioxide and sunlight underground the water mineral nutrients needed support their growth development. Accessibility of essential nitrogen (N) phosphorus (P) in soil is affected by many factors that create variable spatiotemporal landscape availability both at local global scale. Plants optimize uptake N P available through modifications development engagement with microorganisms facilitate capture. The sensing these nutrients, as well perception overall nutrient status, shapes plant's response its environment, coordinating microbial capture regulate plant growth.

Language: Английский

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Molecular and Environmental Regulation of Root Development

Annual Review of Plant Biology, Journal Year: 2019, Volume and Issue: 70(1), P. 465 - 488

Published: March 1, 2019

In order to optimally establish their root systems, plants are endowed with several mechanisms use at distinct steps during development. this review, we zoom in on the major processes involved development and detail important new insights that have been generated recent studies, mainly using Arabidopsis as a model. First, discuss primary characterization of tissue-specific transcription factor complexes identification non-cell-autonomous control apical meristem. Next, branching is discussed by focusing earliest lateral its postemergence growth. Finally, impact phosphate, nitrogen, water availability summarize current knowledge about molecular involved.

Language: Английский

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Interactions between plants and soil shaping the root microbiome under abiotic stress

Biochemical Journal, Journal Year: 2019, Volume and Issue: 476(19), P. 2705 - 2724

Published: Oct. 11, 2019

Abstract Plants growing in soil develop close associations with microorganisms, which inhabit the areas around, on, and inside their roots. These microbial communities associated genes — collectively termed root microbiome are diverse have been shown to play an important role conferring abiotic stress tolerance plant hosts. In light of concerns over threat water nutrient facing terrestrial ecosystems, especially those used for agricultural production, increased emphasis has placed on understanding how conditions influence composition functioning ultimate consequences health. However, under will not only reflect shifts greater bulk community from plants recruit but also responses stress, include changes exudate profiles morphology. Exploring relative contributions these direct plant-mediated effects focus many studies recent years. Here, we review impacts affecting specifically flooding, drought, nitrogen phosphorus availability, that interact ultimately shape microbiome. We conclude a perspective outlining possible directions future research needed advance our complex molecular biochemical interactions between soil, plants, microbes determine stress.

Language: Английский

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Root developmental responses to phosphorus nutrition

Journal of Integrative Plant Biology, Journal Year: 2021, Volume and Issue: 63(6), P. 1065 - 1090

Published: March 12, 2021

Abstract Phosphorus is an essential macronutrient for plant growth and development. Root system architecture (RSA) affects a plant's ability to obtain phosphate, the major form of phosphorus that plants uptake. In this review, I first consider relationship between RSA phosphorus‐acquisition efficiency, describe how external conditions both induce impose changes in crops model Arabidopsis , discuss whether shoot status there universal root developmental response across all species. then summarize current understanding molecular mechanisms governing responses deficiency. also explore possible reasons inconsistent results reported by different research groups comment on relevance some studies performed under laboratory what occurs natural environments.

Language: Английский

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Plant adaptation to low phosphorus availability: Core signaling, crosstalks, and applied implications

Molecular Plant, Journal Year: 2021, Volume and Issue: 15(1), P. 104 - 124

Published: Dec. 24, 2021

Language: Английский

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Nutrient–hormone relations: Driving root plasticity in plants

Molecular Plant, Journal Year: 2021, Volume and Issue: 15(1), P. 86 - 103

Published: Dec. 16, 2021

Optimal plant development requires root uptake of 14 essential mineral elements from the soil. Since bioavailability these nutrients underlies large variation in space and time, plants must dynamically adjust their architecture to optimize nutrient access acquisition. The information on external availability whole-plant demand is translated into cellular signals that often involve phytohormones as intermediates trigger a systemic or locally restricted developmental response. Timing extent such local responses depend overall nutritional status transmitted shoots roots form other long-distance signals. integration then determines cell division elongation rates primary lateral roots, initiation, emergence, well formation hairs. Here, we review cascades nutrient-related sensing signaling events hormones highlight nutrient–hormone relations coordinate plasticity plants.

Language: Английский

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Auxin/Cytokinin Antagonistic Control of the Shoot/Root Growth Ratio and Its Relevance for Adaptation to Drought and Nutrient Deficiency Stresses

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(4), P. 1933 - 1933

Published: Feb. 9, 2022

The hormones auxin and cytokinin regulate numerous aspects of plant development often act as an antagonistic hormone pair. One the more striking examples auxin/cytokinin antagonism involves regulation shoot/root growth ratio in which promotes shoot inhibits root growth, whereas does opposite. Control is essential for survival terrestrial plants because it allows adaptations to water mineral nutrient availability soil. Because a decrease combined with increase leads under drought stress limiting conditions, was not surprising find that promotes, while reduces, tolerance uptake. Recent data show also alter signaling biosynthesis pathways this stress-induced affects opposite manner. These effects suggested each directly negatively regulates or other. However, growing body evidence supports unidirectional regulation, emerging primary regulatory component. This master role may come surprise when viewed from evolutionary perspective.

Language: Английский

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PHOSPHATE STARVATION RESPONSE1 (PHR1) interacts with JASMONATE ZIM-DOMAIN (JAZ) and MYC2 to modulate phosphate deficiency-induced jasmonate signaling in Arabidopsis

The Plant Cell, Journal Year: 2023, Volume and Issue: 35(6), P. 2132 - 2156

Published: Feb. 28, 2023

Abstract Phosphorus (P) is a macronutrient necessary for plant growth and development. Inorganic phosphate (Pi) deficiency modulates the signaling pathway of phytohormone jasmonate in Arabidopsis thaliana, but underlying molecular mechanism currently remains elusive. Here, we confirmed that was enhanced under low Pi conditions, CORONATINE INSENSITIVE1 (COI1)-mediated critical this process. A mechanistic investigation revealed several JASMONATE ZIM-DOMAIN (JAZ) repressors physically interacted with signaling-related core transcription factors PHOSPHATE STARVATION RESPONSE1 (PHR1), PHR1-LIKE2 (PHL2), PHL3. Phenotypic analyses showed PHR1 its homologs positively regulated jasmonate-induced anthocyanin accumulation root inhibition. stimulated expression jasmonate-responsive genes, whereas JAZ proteins interfered transcriptional function. Furthermore, associated basic helix–loop–helix (bHLH) MYC2, MYC3, MYC4. Genetic biochemical assays indicated MYC2 synergistically increased downstream genes responses to jasmonate. Collectively, our study reveals crucial regulatory roles modulating provides understanding how functions together maintain appropriate level conditions deficiency.

Language: Английский

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Integration of nutrient and water availabilities via auxin into the root developmental program

Current Opinion in Plant Biology, Journal Year: 2021, Volume and Issue: 65, P. 102117 - 102117

Published: Oct. 6, 2021

In most soils, the spatial distribution of nutrients and water in rooting zone plants is heterogeneous changes over time. To access localized resources more efficiently, induce foraging responses by modulating individual morphological root traits, such as length primary or number lateral roots. These adaptive require integration exogenous endogenous nutrient- water-related signals into developmental program. Recent studies corroborated a central role auxin shaping architectural traits response to fluctuating nutrient availabilities. this review, we highlight current knowledge on processes that impact involve player. A deeper understanding exploitation these auxin-related mechanisms promises advances crop breeding for higher resource efficiency.

Language: Английский

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Auxin-Regulated Lateral Root Organogenesis

Cold Spring Harbor Perspectives in Biology, Journal Year: 2021, Volume and Issue: unknown, P. a039941 - a039941

Published: Feb. 8, 2021

Nicola Cavallari, Christina Artner and Eva Benkova Institute of Science Technology Austria, 3400 Klosterneuburg, Austria Correspondence: eva.benkova{at}ist.ac.at

Language: Английский

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