Combined deficiency of nitrogen and iron increases senescence induced remobilization of plant immobile iron in wheat

Parveen, Shamima; Ranjan, Ranjeet K.; Anand, Anjali; Usha, K.

doi:10.1007/s11738-018-2782-9

Cited by 15 publications

(5 citation statements)

References 32 publications

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“…Nitrogen is one of the most abundant elements in plants (after carbon: about 40% of plant dry matter and oxygen: about 45%); however N concentrations in plant tissues is plant species specific and changes during developmental stages (higher in young tissues and lower in mature or senesced parts) [32], [33]. In the present experiments at both analyzed test sites, nitrogen concentrations in plant tissues of S. europaea were in the range of 0.68–1.34% of dry plant weight, with significantly higher N values observed for shoots than roots.…”

Section: Discussionmentioning

confidence: 99%

Salicornia europaea L. as an underutilized saline-tolerant plant inhabited by endophytic diazotrophs

Hrynkiewicz

Patz

Ruppel

2019

Journal of Advanced Research

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Section: Discussionmentioning

confidence: 99%

Salicornia europaea L. as an underutilized saline-tolerant plant inhabited by endophytic diazotrophs

Hrynkiewicz

Patz

Ruppel

2019

Journal of Advanced Research

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“…Each reaction system consisted of 10 µL SYBR qPCR Master Mix, 0.4 µL of forward primer, 0.4 µL of reverse primer, 1 µg of cDNA, and, finally, the volume was supplemented to 20 µL using ddH 2 O. The gene expression was analyzed using the ABI 7500 Real-Time PCR instrument (Applied Biosystems, Waltham, MA, USA), the RT-qPCR reaction process includes: 1. holding stage: 95 The primers used for the reaction were displayed in Table S1, and TaActin (wheat β-Actin gene [24]) was used as the internal reference gene [25]. The relative expression level of the target genes was calculated using the ∆∆CT method; the technique was repeated 3 times per sample.…”

Section: Plant Materials and Gene Expression Analysismentioning

confidence: 99%

Identification of Wheat Glutamate Synthetase Gene Family and Expression Analysis under Nitrogen Stress

Li,

Jiao,

Wang

et al. 2024

Genes

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Nitrogen (N), as the main component of biological macromolecules, maintains the basic process of plant growth and development. GOGAT, as a key enzyme in the N assimilation process, catalyzes α-ketoglutaric acid and glutamine to form glutamate. In this study, six GOGAT genes in wheat (Triticum aestivum L.) were identified and classified into two subfamilies, Fd-GOGAT (TaGOGAT2s) and NADH-GOGAT (TaGOGAT3s), according to the type of electron donor. Subcellular localization prediction showed that TaGOGAT3-D was localized in mitochondria and that the other five TaGOGATs were localized in chloroplasts. Via the analysis of promoter elements, many binding sites related to growth and development, hormone regulation and plant stress resistance regulations were found on the TaGOGAT promoters. The tissue-specificity expression analysis showed that TaGOGAT2s were mainly expressed in wheat leaves and flag leaves, while TaGOGAT3s were highly expressed in roots and leaves. The expression level of TaGOGATs and the enzyme activity of TaGOGAT3s in the leaves and roots of wheat seedlings were influenced by the treatment of N deficiency. This study conducted a systematic analysis of wheat GOGAT genes, providing a theoretical basis not only for the functional analysis of TaGOGATs, but also for the study of wheat nitrogen use efficiency (NUE).

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“…For instance, the transition from N starvation to sufficient N levels results in a 3-fold increase in the Fe content in wheat shoots under stable Fe concentration conditions (Aciksoz et al, 2011). In addition, deficiencies in N and Fe cause senescence in wheat, thereby affecting the migration of Fe from its source to sinks (Parveen et al, 2018). The interaction between N and Fe has been studied to improve Fe biofortification.…”

Section: /42mentioning

confidence: 99%

Balanced nitrogen-iron nutrition boosts grain yield and nitrogen use efficiency in rice and wheat

Song

Wang

et al. 2023

Preprint

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Nutrients must be balanced for optimal plant growth. However, the potential significance of balanced nitrogen-iron (N-Fe) for improving crop yield and nitrogen use efficiency (NUE) has never been addressed. Here, we show that balanced N-Fe substantially increases tiller number and boosts yield and NUE in rice and wheat. NIN-like protein 4 plays a pivotal role in maintaining the N-Fe balance by coordinately regulating the expression of multiple genes in N and Fe metabolism and signaling. Moreover, we show that foliar spraying of balanced N-Fe at the tillering stage can effectively increase rice tillers, yield and NUE in the field, which can be reproduced with wheat. Our findings provide guidelines for innovative fertilization to reduce N fertilizer input and promote yield, thus benefitting environment-friendly and sustainable agriculture worldwide.

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Combined deficiency of nitrogen and iron increases senescence induced remobilization of plant immobile iron in wheat

Cited by 15 publications

References 32 publications

Salicornia europaea L. as an underutilized saline-tolerant plant inhabited by endophytic diazotrophs

Salicornia europaea L. as an underutilized saline-tolerant plant inhabited by endophytic diazotrophs

Identification of Wheat Glutamate Synthetase Gene Family and Expression Analysis under Nitrogen Stress

Balanced nitrogen-iron nutrition boosts grain yield and nitrogen use efficiency in rice and wheat

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