Inorganic Nitrogen Uptake and Transport in Beneficial Plant Root-Microbe Interactions

Courty, Pierre‐Emmanuel; Smith, Penelope M. C.; Koegel, Sally; Redecker, Dirk; Wipf, Daniel

doi:10.1080/07352689.2014.897897

Cited by 131 publications

(75 citation statements)

References 157 publications

(197 reference statements)

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“…There is growing evidence that AMF are strong contributors to plant N nutrition (Bücking and Kafle 2015;Corrêa et al 2015;Courty et al 2015). Several studies revealed that approximately 20 to 75% of the total N uptake of AM plants can be transferred by AMF to their hosts (Govindarajulu et al 2005;Tanaka and Yano 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Govindarajulu et al 2005;Koegel et al 2013a,b; reviewed by Courty et al 2015). Due to high energy costs of NO 3 − to NH 4 + reduction, microorganisms normally prefer the direct assimilation of NH 4 + (Courty et al 2015). In the AMF Rhizophagus intraradices (formerly called Glomus intraradices), that is found in rice roots in paddy fields and is used in most AM-rice studies (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Identification of arbuscular mycorrhiza-inducible Nitrate Transporter 1/Peptide Transporter Family (NPF) genes in rice

Drechsler¹,

Courty²,

Brulé³

et al. 2017

Mycorrhiza

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Arbuscular mycorrhizal fungi (AMF) colonize up to 90% of all land plants and facilitate the acquisition of mineral nutrients by their hosts. Inorganic orthophosphate (P i ) and nitrogen (N) are the major nutrients transferred from the fungi to plants. While plant P i transporters involved in nutrient transfer at the plant-fungal interface have been well studied, the plant N transporters participating in this process are largely unknown except for some ammonium transporters (AMT) specifically assigned to arbuscule-colonized cortical cells. In plants, many nitrate transporter 1/peptide transporter family (NPF) members are involved in the translocation of nitrogenous compounds including nitrate, amino acids, peptides and plant hormones. Whether NPF members respond to AMF colonization, however, is not yet known. Here, we investigated the transcriptional regulation of 82 rice (Oryza sativa) NPF genes in response to colonization by the AMF Rhizophagus irregularis in roots of plants grown under five different nutrition regimes. Expression of the four OsNPF genes NPF2.2/ PTR2, NPF1.3, NPF6.4 and NPF4.12 was strongly induced in mycorrhizal roots and depended on the composition of the fertilizer solution, nominating them as interesting candidates for nutrient signaling and exchange processes at the plantfungal interface.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of arbuscular mycorrhiza-inducible Nitrate Transporter 1/Peptide Transporter Family (NPF) genes in rice

Drechsler¹,

Courty²,

Brulé³

et al. 2017

Mycorrhiza

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show abstract

“…In production, worldwide, grain legumes rank third after cereals and oilseeds but have a major impact on agriculture, the environment, animal and human health, and nutrition (Graham and Vance, 2003;Dita et al, 2006;Mantri et al, 2013). The legumes increase biological nitrogen fixation, reduce energy costs and improve soil physical conditions (Courty et al, 2015;Peix et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Field Performance of Mung Bean, Faba Bean and Lentil Genotypes in the Kingdom of Saudi Arabia

Alghamdi

Al-Faifi

Migdadi

et al. 2017

IJAB

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Grain legumes are grown for their high proteins and biological nitrogen fixation ability. In this study, 3 mung bean, 4 lentil and 20 faba bean genotypes from the Kingdom of the Saudi Arabia were evaluated for genetic diversity. There were significant differences in the morphological and molecular characteristics in the tested mung bean (Vigna radiata L.), lentil (Lens culinaris Medik.) and faba bean (Vicia faba L.) genotypes. The sequence-related amplified polymorphism (SRAP) and amplified fragments length polymorphism (AFLP) markers exhibited a considerable genetic diversity among the tested genotypes of all three legume crops. The genotypes differed for plant height, primary branches, pod length, pods per plant, grain per pod and 100-grain weight. All the tested genotypes of mung bean, lentil and faba bean differed in the number of alleles. Maximum number of alleles per primer combination was 112 in mung bean, 72 in lentil and 126 in faba bean.Polymorphism percentage of all the tested genotypes of the mung bean and lentil was 100% and in faba bean, it ranged from 97 to 100%. Existence of genetic diversity of these tested mung bean, lentil and faba bean genotypes offers opportunities to exploit favourable alleles for use in the breeding program aimed at yield improvement.

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“…Compared with cereal production, vegetable production usually requires a greater degree of management and larger input of nutrients and irrigation, but these systems are not sustainable in the long term Hao ZP et al, 2009 . Microorganisms are efficient bioindicators of soil biological characteristics, because their ability to respond quickly to environmental changes (Avidano L et al, 2005;Bell CW et al, 2009). Many studies have shown that changes in the size and activity of the soil microbial community are major contributors to soil degradation caused by agricultural management (Courty PE et al, 2015;Bell CW et al, 2015;Ciccazzo S et al, 2014). Soil organisms play important roles in maintaining soil health and quality.…”

Section: Introductionmentioning

confidence: 99%

Bacterial diversity and community structure in lettuce soil are shifted by cultivation time

Chang¹,

Guo²,

Yi³

2017

AIP Conference Proceedings

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Abstract. Compared with cereal production, vegetable production usually requires a greater degree of management and larger input of nutrients and irrigation, but these systems are not sustainable in the long term. This study aimed to what extent lettuce determine the bacterial community composition in the soil, during lettuce cultivation, pesticides and fertilizers were not apply to soil. Soil samples were collected from depths of 0-20cm and 20-40cm. A highthroughput sequencing approach was employed to investigate bacterial communities in lettuce -cultivated soil samples in a timedependent manner. The dominant bacteria in the lettuce soil samples were mainly Proteobacteria, Actinobacteria, Chloroflexi, Nitrospirae, Firmicutes, Acidobacteria, Bacteroidetes, Verrucomicrobia, Planctomycetes, Gemmatimo nadetes, Cyanobacteria. Proteobacteria was the most abundant phylum in the 6 soil samples. The relative abundance of Acidobacteria, Firmicutes, Bacteroidetes, Verrucomicrobia and Cyanobacteria decreased through time of lettuce cultivation, but the relative abundance of Proteobacteria, Actinobacteria, Gemmatimonadetes, Chloroflexi, Planctomycetes and Nitrospirae increased over time. In the 0-20cm depth group and the 20-40cm depth soil, a similar pattern was observed that the percentage number of only shared OTUs between the early and late stage was lower than that between the early and middle stage soil, the result showed that lettuce growth can affect structure of soil bacterial communities.

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Inorganic Nitrogen Uptake and Transport in Beneficial Plant Root-Microbe Interactions

Cited by 131 publications

References 157 publications

Identification of arbuscular mycorrhiza-inducible Nitrate Transporter 1/Peptide Transporter Family (NPF) genes in rice

Identification of arbuscular mycorrhiza-inducible Nitrate Transporter 1/Peptide Transporter Family (NPF) genes in rice

Genetic Diversity and Field Performance of Mung Bean, Faba Bean and Lentil Genotypes in the Kingdom of Saudi Arabia

Bacterial diversity and community structure in lettuce soil are shifted by cultivation time

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