Nitrogen transformations in modern agriculture and the role of biological nitrification inhibition

Coskun, Devrim; Britto, Dev T.; Shi, Weiming; Kronzucker, Herbert J.

doi:10.1038/nplants.2017.74

Cited by 472 publications

(336 citation statements)

References 125 publications

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“…Only the part of the root system exposed to

{NH}_{4}^{+}

triggered the release of the brachialactone, indicating a localized active process. Presence of the BNI trait in plants is now being identified in a growing number of species (O'Sullivan, Fillery, Roper, & Richards, ; Subbarao, Rondon et al, ), emphasizing its potential to increase N use efficiency in agriculture to conserve N in the

{NH}_{4}^{+}

form (Coskun et al, ). Another groundbreaking finding was the demonstration that some plants can also inhibit denitrification by up to 80% through the release of procyanidins in root exudates (Bardonet al, ).…”

Section: Plants Limit N Losses To Conserve Available Nmentioning

confidence: 99%

“…This was evidenced by using a split-root system in which half of the root system was exposed to NH + 4 and the other half to NO − 3 . Only the part of the root system exposed to NH Subbarao, Rondon et al, 2007), emphasizing its potential to increase N use efficiency in agriculture to conserve N in the NH + 4 form (Coskun et al, 2017). Another groundbreaking finding was the demonstration that some plants can also inhibit denitrification by up to 80% through the release of procyanidins in root exudates (Bardonet al, 2014(Bardonet al, , 2016.…”

Section: Pl Ants Limit N Loss E S To Con S Erve Avail Ab Le Nmentioning

confidence: 99%

“…While the influence of plants on N‐cycling micro‐organisms has previously been synthesized, to date these reviews have largely focused on a few processes within the N cycle (Coskun, Britto, Shi, & Kronzucker, ; Kuzyakov & Xu, ; Subbarao et al, ). We therefore lack a comprehensive view of how plants influence the different microbial N transformations to increase N availability and retention in the plant–soil system, which would support the hypothesis of multiple plant strategies for controlling key steps in the microbial N cycle.…”

Section: Introductionmentioning

confidence: 99%

“…While the influence of plants on N-cycling micro-organisms has previously been synthesized, to date these reviews have largely focused on a few processes within the N cycle (Coskun, Britto, Shi, & Kronzucker, 2017;Kuzyakov & Xu, 2013;Subbarao et al, 2009).…”

mentioning

confidence: 99%

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A plant perspective on nitrogen cycling in the rhizosphere

et al. 2019

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Nitrogen is the major nutrient limiting plant growth in terrestrial ecosystems, and the transformation of inert nitrogen to forms that can be assimilated by plants is mediated by soil micro‐organisms. The last decade has witnessed many significant advances in our understanding of plant–microbe interactions with evidence that plants have evolved multiple strategies to cope with nitrogen limitation by shaping and recruiting nitrogen‐cycling microbial communities. However, most studies have typically focused on the impact of plants on only one, or relatively few, processes within the nitrogen cycle. This review synthesizes recent advances in our understanding of the various routes by which plants influence the availability of nitrogen via an array of interactions with different guilds of nitrogen‐cycling micro‐organisms. We also propose a plant trait‐based framework for linking plant nitrogen acquisition strategies to the activities of nitrogen‐cycling microbial guilds. In doing so, we provide a more comprehensive picture of the ecological relationships between plants and nitrogen‐cycling micro‐organisms in terrestrial ecosystems. Finally, we identify previously overlooked processes within the nitrogen cycle that could be targeted in future research and be of interest for plant health or for improving plant nitrogen acquisition, while minimizing nitrogen inputs and losses in sustainable agricultural systems. A plain language summary is available for this article.

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“…Only the part of the root system exposed to

{NH}_{4}^{+}

{NH}_{4}^{+}

Section: Plants Limit N Losses To Conserve Available Nmentioning

confidence: 99%

Section: Pl Ants Limit N Loss E S To Con S Erve Avail Ab Le Nmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A plant perspective on nitrogen cycling in the rhizosphere

et al. 2019

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“…The impact of these conditions and of pH are discussed in recent reviews (Blum et al, 2018;Sabba, Terada, Wells, Smets, & Nerenberg, 2018;Todt & Dörsch, 2016). This can be achieved by use of synthetic nitrification inhibitors, whose benefits and limitations have been reviewed elsewhere (Coskun, Britto, Shi, & Kronzucker, 2017). AOA outnumbered AOB by ~1-2 orders of magnitude in 10 plants but, if cellular ammonia oxidation and N 2 O rates are lower for AOA, AOA will not necessarily dominate activity.…”

Section: Wastewater Treatment Systemsmentioning

confidence: 99%

Nitrous oxide production by ammonia oxidizers: Physiological diversity, niche differentiation and potential mitigation strategies

Prosser

Hink

Gubry‐Rangin

et al. 2019

Global Change Biology

284

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Oxidation of ammonia to nitrite by bacteria and archaea is responsible for global emissions of nitrous oxide directly and indirectly through provision of nitrite and, after further oxidation, nitrate to denitrifiers. Their contributions to increasing N 2 O emissions are greatest in terrestrial environments, due to the dramatic and continuing increases in use of ammonia-based fertilizers, which have been driven by requirement for increased food production, but which also provide a source of energy for ammonia oxidizers (AO), leading to an imbalance in the terrestrial nitrogen cycle.Direct N 2 O production by AO results from several metabolic processes, sometimes combined with abiotic reactions. Physiological characteristics, including mechanisms for N 2 O production, vary within and between ammonia-oxidizing archaea (AOA) and bacteria (AOB) and comammox bacteria and N 2 O yield of AOB is higher than in the other two groups. There is also strong evidence for niche differentiation between AOA and AOB with respect to environmental conditions in natural and engineered environments. In particular, AOA are favored by low soil pH and AOA and AOB are, respectively, favored by low rates of ammonium supply, equivalent to application of slow-release fertilizer, or high rates of supply, equivalent to addition of high concentrations of inorganic ammonium or urea. These differences between AOA and AOB provide the potential for better fertilization strategies that could both increase fertilizer use efficiency and reduce N 2 O emissions from agricultural soils. This article reviews research on the biochemistry, physiology and ecology of AO and discusses the consequences for AO communities subjected to different agricultural practices and the ways in which this knowledge, coupled with improved methods for characterizing communities, might lead to improved fertilizer use efficiency and mitigation of N 2 O emissions.

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High rhizospheric ammonium levels in Sorghum halepense (johnsongrass) suggests nitrification inhibition potential

Ghosh,

Rajan,

Phuyal

et al. 2024

Agricultural & Env Letters

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Plants, such as sorghum (Sorghum bicolor), have been shown to secrete root exudates involved in biological nitrification inhibition (BNI), an ability to suppress the conversion of ammonium to nitrate and thereby minimize its loss. Johnsongrass (Sorghum halepense), a weedy relative of cultivated sorghum, may also possess BNI potential, but little is known in this regard. Here, we conducted a field survey at seven different sites in Southeast Texas to determine this evolutionary trait of johnsongrass in different soil environments. It was found that johnsongrass rhizosphere retains high levels (>60%) of ammonium within the total available N (ammonium + nitrate). Furthermore, the degree of ammonium retention by johnsongrass rhizosphere was significantly greater (up to 40%) in the roadside habitat compared to cultivated fields. The high ammonium retention potential by johnsongrass may explain, in part, their persistence and dominance, especially in marginal environments.Core Ideas Nitrogen is a limiting nutrient for plant growth, and nitrification causes loss of nitrogen. Ammonium retention was higher in roadside johnsongrass biotypes compared to that of cropland biotypes. The high rhizoshpheric ammonium retention by johnsongrass may explain, at least in part, its invasiveness. This trait could be further investigated and integrated into modern sorghum cultivars.

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Nitrogen transformations in modern agriculture and the role of biological nitrification inhibition

Cited by 472 publications

References 125 publications

A plant perspective on nitrogen cycling in the rhizosphere

A plant perspective on nitrogen cycling in the rhizosphere

Nitrous oxide production by ammonia oxidizers: Physiological diversity, niche differentiation and potential mitigation strategies

High rhizospheric ammonium levels in Sorghum halepense (johnsongrass) suggests nitrification inhibition potential

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