The ferredoxin-dependent glutamate synthase (OsFd-GOGAT) participates in leaf senescence and the nitrogen remobilization in rice

Zeng, Dongdong; Qin, Ran; Li, Mei; Alamin, Md.; Jin, Xiaoli; Liu, Yu; Shi, Chao

doi:10.1007/s00438-016-1275-z

Cited by 47 publications

(27 citation statements)

References 42 publications

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“…Meanwhile, the gogat1 mutant showed a reduced seed setting rate and increased grain protein and amino acid content. This result showed that OsFd-GOGAT plays an important role in nitrogen remobilization during leaf senescence [ 41 ].…”

Section: Nitrogen Remobilization Involved In Rice Leaf Senescencementioning

confidence: 99%

Genetic Dissection of Leaf Senescence in Rice

Leng

Zeng

2017

IJMS

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Leaf senescence, the final stage of leaf development, is a complex and highly regulated process that involves a series of coordinated actions at the cellular, tissue, organ, and organism levels under the control of a highly regulated genetic program. In the last decade, the use of mutants with different levels of leaf senescence phenotypes has led to the cloning and functional characterizations of a few genes, which has greatly improved the understanding of genetic mechanisms underlying leaf senescence. In this review, we summarize the recent achievements in the genetic mechanisms in rice leaf senescence.

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Section: Nitrogen Remobilization Involved In Rice Leaf Senescencementioning

confidence: 99%

Genetic Dissection of Leaf Senescence in Rice

Leng

Zeng

2017

IJMS

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“…A recent work of Zeng et al [38] showed how a single nucleotide polymorphism, leading to an aminoacid substitution in rice Fd-GOGAT genes, resulted in an increased GPC, confirming its important role as a potential candidate in NUE improvement. The NADH-GOGAT gene was also identified as a major candidate gene for cereal NUE by a cross-genome ortho-meta QTL study of NUE [39].…”

Section: Gogat Allelic Variants and Relationship With Gpcmentioning

confidence: 99%

Allelic Variants of Glutamine Synthetase and Glutamate Synthase Genes in a Collection of Durum Wheat and Association with Grain Protein Content

et al. 2017

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Abstract:Wheat is one of the most important crops grown worldwide. Despite the fact that it accounts for only 5% of the global wheat production, durum wheat (Triticum turgidum L. subsp. durum) is a commercially important tetraploid wheat species, which originated and diversified in the Mediterranean basin. In this work, the candidate gene approach has been applied in a collection of durum wheat genotypes; allelic variants of genes glutamine synthetase (GS2) and glutamate synthase (GOGAT) were screened and correlated with grain protein content (GPC). Natural populations and collections of germplasms are quite suitable for this approach, as molecular polymorphisms close to a locus with evident phenotypic effects may be closely associated with their character, providing a better physical resolution than genetic mapping using ad hoc constituted populations. A number of allelic variants were detected both for GS2 and GOGAT genes, and regression analysis demonstrated that some variations are positively and significantly related to the GPC effect. Additionally, these genes map into homoeologous chromosome groups 2 and 3, where several authors have localized important quantitative trait loci (QTLs) for GPC. The information outlined in this work could be useful in breeding and marker-assisted selection programs.

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“…OsFd-GOGAT is highly abundant in mesophyll cells and other chloroplast-containing cells regulated by light [56] and is important in reassimilation of ammonium generated by photorespiration in chloroplasts [65]. Recently, participating in nitrogen assimilation, C/N balance, [66], leaf senescence, and the nitrogen remobilization has been reported [67]. OsNADH-GOGAT1 is mainly expressed in surface cells of rice roots in an NH 4 + -dependent manner and is important for primary ammonium assimilation in roots at the seedling stage and development of active tiller number until the harvest [62,65].…”

Section: Nitrogen Assimilationmentioning

confidence: 99%

Nitrogen Use Efficiency in Rice

Huang¹,

Zhao²,

Zhang³

et al. 2018

Nitrogen in Agriculture - Updates

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Food security is a major global issue because of the growing population and decreasing land area. Rice (Oryza sativa L.) is the most important staple cereal crop in the world. Application of nitrogen (N) fertilizer has improved crop yield in the world during the past five decades but with considerable negative impacts on the environment. New solutions are therefore urgently needed to simultaneously increase yields while maintaining or preferably decreasing applied N to maximize the nitrogen use efficiency (NUE) of crops. Plant NUE is inherently complex with each step (including N uptake, translocation, assimilation, and remobilization) governed by multiple interacting genetic and environmental factors. Based on the current knowledge, we propose some possible approaches enhancing NUE, by molecular manipulation selecting candidate genes and agricultural integrated management practices for NUE improvement. Developing an integrated research program combining approaches, mainly based on whole-plant physiology, quantitative genetics, forward and reverse genetics, and agronomy approaches to improve NUE, is a major objective in the future.

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The ferredoxin-dependent glutamate synthase (OsFd-GOGAT) participates in leaf senescence and the nitrogen remobilization in rice

Cited by 47 publications

References 42 publications

Genetic Dissection of Leaf Senescence in Rice

Genetic Dissection of Leaf Senescence in Rice

Allelic Variants of Glutamine Synthetase and Glutamate Synthase Genes in a Collection of Durum Wheat and Association with Grain Protein Content

Nitrogen Use Efficiency in Rice

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